UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
_____________________
FORM 10-K
_____________________
 
(Mark One)
ýANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the fiscal year ended:ended December 31, 20172021
or
¨TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the transition period from to
Commission file number: 001-36310
_____________________
CONCERT PHARMACEUTICALS, INC.
(Exact name of registrant as specified in its charter)
_____________________

Delaware20-4839882
Delaware20-4839882
(State or other jurisdiction of

incorporation or organization)
(I.R.S. Employer

Identification No.)
65 Hayden Avenue, Suite 3000N
Lexington, Massachusetts
(Address of principal executive offices)
02421
(Zip code)
99 Hayden Avenue, Suite 500
Lexington, Massachusetts 02421(781) 860-0045
(Address of principal executive offices) (Zip Code)
Registrant’s telephone number, including area code: (781) 860-0045code)

Securities registered pursuant to Section 12(b) of the Act:
Title of each classTrading Symbol(s)Name of each exchange on which registered
Common Stock, $0.001 par value $0.001 per shareCNCEThe NASDAQNasdaq Global Market

Securities registered pursuant to Section 12(g) of the Act:
None
 
Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.    Yes  ¨    No  ý
Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act.    Yes  ¨    No  ý
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  ý    No  ¨
Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes  ý    No  ¨

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Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K (§229.405) is not contained herein, and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.  ¨
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of “large accelerated filer”,filer,” “accelerated filer”,filer,” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act.
Large accelerated filer¨Accelerated filer¨
Non-accelerated filerýSmaller reporting companyý
Emerging growth company¨Accelerated filerx
Non-accelerated filer
¨ (Do not check if a smaller reporting company)
Smaller reporting company¨
Emerging Growth Companyx
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ý¨
Indicate by check mark whether the registrant has filed a report on and attestation to its management’s assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report. ¨
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).     Yes  ¨    No  ý
The aggregate market value of the voting and non-voting common equity held by non-affiliates of the registrant as of June 30, 20172021 was approximately $192,928,000$100,700,000 based on the closing price of the registrant’s common stock on the NASDAQNasdaq Global Market on that date.
The number of shares outstanding of the registrant’s Common Stockcommon stock as of February 26, 2018: 23,233,27528, 2022: 34,953,342

DOCUMENTS INCORPORATED BY REFERENCE
The registrant intends to file a definitive proxy statement pursuant to Regulation 14A in connection with its 2022 Annual Meeting of Stockholders. Portions of such proxy statement are incorporated by reference into Part III of this Annual Report on Form 10-K.
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CONCERT PHARMACEUTICALS, INC.
TABLE OF CONTENTS

PART I
PART I
Item 1.
Item 1A.
Item 1B.
Item 2.
Item 3.
Item 4.
PART II
Item 5.
Item 6.
Item 7.
Item 7A.
Item 8.
Item 9.
Item 9A.
Item 9B.
PART IIIItem 9C.
PART III
Item 10.
Item 11.
Item 12.
Item 13.
Item 14.
PART IV
Item 15.
Item 16.


References to Concert
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REFERENCES TO CONCERT
Throughout this Annual Report on Form 10-K, the “Company,“Concert,“Concert,“the Company,” “we,” “us,”“us” and “our,” except where the context requires otherwise, refer to Concert Pharmaceuticals, Inc. and its consolidated subsidiary,subsidiaries, and “our board of directors” refers to the board of directors of Concert Pharmaceuticals, Inc.
Forward-Looking InformationFORWARD-LOOKING STATEMENTS
This Annual Report on Form 10-K contains forward-lookingforward‑looking statements that involve substantial risks and uncertainties. All statements, other than statements of historical facts, contained in this Annual Report on Form 10-K, including statements regarding among other things, our strategy, future discovery and development efforts, ouroperations, future operating results and financial position, our business strategy,projected costs, prospects, plans and other objectives for our operations.of management, are forward‑looking statements. The words “anticipate,” “believe,” “continue,” “could,” “estimate,” “expect,” “intend,” “may,” “plan,” “potential,” “predict,” “project,” “should,” “target,” “will,” “would” and similar expressions are intended to identify forward-lookingforward‑looking statements, although not all forward-lookingforward‑looking statements contain these identifying words. You also can
The forward‑looking statements in this Annual Report on Form 10-K include, among other things, statements about:
ongoing and planned clinical trials for our product candidates, whether conducted by us or by our collaborators, including the timing of initiation, enrollment and completion of these trials and of the anticipated results;
our plans to identify, forward-looking statements by the fact that they do not relate strictlydevelop and commercialize novel small molecule drugs based on our knowledge of deuterium chemistry;
our plans to historical or current facts. There are a number of important risks and uncertainties that could cause our actual results to differ materially from those indicated by forward-looking statements. These risks and uncertainties include those inherent in pharmaceutical research and development, such as adverse results in our drug discovery and clinical development activities, decisions made by the U.S. Food and Drug Administration and other regulatory authorities with respect toenter into collaborations for the development and commercialization of product candidates;
our drug candidates,expected benefits from our current and any future collaboration, development or license arrangements;
our ability to receive research and development funding and achieve anticipated milestones under our collaborations;
our expectations regarding any future milestone payments or royalties we may receive as part of our agreement with Avanir Pharmaceuticals Inc. with respect to AVP-786 and payments from our other collaboration and license arrangements;
the timing of and our ability to obtain and maintain marketing approvals for our product candidates;
the rate and enforcedegree of market acceptance and clinical utilization of our products;
our commercialization, marketing and manufacturing capabilities and strategy;
our intellectual property rightsposition and strategy;
the outcome of our inter partes review proceeding regarding U.S. Patent No. 9,249,149 covering CTP-543 and the post grant review petition challenging U.S. Patent No. 10,561,659 covering CTP-543;
our freedom to operate with respect to third-party patents;
the potential advantages of our product candidates;
our estimates regarding expenses, future revenue, capital requirements and needs for our drug candidates,additional financing;
conditions and events that raise doubt about our ability to obtain any necessary financingcontinue as a going concern;
risks associated with the COVID-19 pandemic, which may adversely impact our business, clinical trials and supply chain;
developments relating to conduct our planned activitiescompetitors and other risk factors. our industry; and
the impact of government laws and regulations.
We may not actually achieve the plans, intentions or expectations disclosed in our forward-looking statements, and you should not place undue reliance on our forward-looking statements. Actual results or events could differ materially from the plans, intentions and expectations disclosed in the forward-looking statements we make. We have included important factors in the cautionary statements included in this Annual Report on Form 10-K, particularly in the section entitled “Risk Factors” in Part I, Item 1A. Risk Factors, that could cause actual results or events to differ materially from the forward-looking statements that we make. Our forward-looking statements do not reflect the potential impact of any future acquisitions, mergers, dispositions, joint ventures, collaborations or investments that we may make. Unless required by law,
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You should read this Annual Report on Form 10-K and the documents that we have filed as exhibits to this Annual Report on Form 10-K completely and with the understanding that our actual future results may be materially different from what we expect. We do not undertakeassume any obligation to publicly update any forward-looking statements.statements, whether as a result of new information, future events or otherwise, except as required by law.


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SUMMARY OF THE MATERIAL RISKS ASSOCIATED WITH OUR BUSINESS
Our business is subject to numerous risks and uncertainties, including those described in the “Risk Factors” section in Part I, Item 1A. of this Annual Report on Form 10-K. The principal risks and uncertainties affecting our business include the following:
Our business may be adversely affected by the ongoing COVID-19 pandemic.
We have incurred significant losses since inception, expect to incur losses for at least the next several years and may never sustain profitability.
Based on our current operating plan, there is substantial doubt regarding our ability to continue as a going concern.
We will need substantial additional funding. If we are unable to raise capital when needed, we could be forced to delay, reduce or eliminate our development programs or commercialization efforts.
Raising additional capital may cause dilution to our stockholders or require us to relinquish rights to our technologies or product candidates.
Clinical drug development involves a lengthy and expensive process with an uncertain outcome.
We may not be able to continue further clinical development of our wholly-owned development programs, including CTP-543. If we are unable to develop, obtain marketing approval for or commercialize our wholly-owned development programs, ourselves or through a collaboration, or experience significant delays in doing so, our business could be materially harmed.
If clinical trials of our product candidates fail to satisfactorily demonstrate safety and efficacy to the FDA and other regulators, we, or our collaborators, may incur additional costs or experience delays in completing, or ultimately be unable to complete, the development and commercialization of these product candidates.
If we, or our collaborators, experience any of a number of possible unforeseen events in connection with clinical trials of our product candidates, potential marketing approval or commercialization of our product candidates could be delayed or prevented.
If we, or our collaborators, experience delays or difficulties in the enrollment of patients in clinical trials, our, or their, receipt of necessary marketing approvals could be delayed or prevented.
Serious adverse events, undesirable side effects or other unexpected properties of our product candidates, including those that we have licensed to collaborators, may be identified during development that could delay or prevent the product candidate’s marketing approval.
We rely on third parties to conduct our clinical trials and some aspects of our research and nonclinical testing. If they terminate their relationships with us or do not perform satisfactorily, our business may be materially harmed.
We depend on collaborations with third parties for the development and commercialization of some of our product candidates and expect to continue to do so in the future. Our prospects with respect to those product candidates will depend in significant part on the success of those collaborations.
We expect to seek to establish additional collaborations, and if we are not able to establish them on commercially reasonable terms, we may have to alter our development and commercialization plans.
If we are unable to obtain and maintain sufficient patent protection for our product candidates, or if the scope of the patent protection is not sufficiently broad, our competitors could develop and commercialize products similar or identical to ours, and our ability to successfully commercialize our product candidates may be adversely affected.
Third parties may sue us alleging that we are infringing their intellectual property rights, and such litigation could be costly and time consuming and could prevent or delay us from developing or commercializing our product candidates.
We contract with third parties for the manufacture and distribution of our product candidates for nonclinical and clinical testing and expect to continue to do so in connection with our future development and commercialization efforts. This reliance on third parties increases the risk that we will not have sufficient quantities of our product candidates or such quantities at an acceptable cost, or that the product candidates will not be of sufficient quality or reproducibility or produced on our desired schedule, which could delay, prevent or impair our development or commercialization efforts.
Even if we complete the necessary nonclinical studies and clinical trials, the marketing approval process is expensive, time consuming and uncertain and we may not obtain approvals for the commercialization of some or all of our
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product candidates. As a result, we cannot predict when or if, and in which territories, we, or our collaborators, will obtain marketing approval to commercialize a product candidate.
Even if we, or our collaborators, obtain marketing approvals for our product candidates, the approved labeling may include significant safety warnings or use limitations, which could adversely affect the degree of market acceptance.
We face substantial competition from other pharmaceutical and biotechnology companies and our operating results may suffer if we fail to compete effectively.
The summary risk factors described above should be read together with the text of the full risk factors below, in the section entitled “Risk Factors” and the other information set forth in this Annual Report on Form 10-K, including our consolidated financial statements and the related notes, as well as in other documents that we file with the Securities and Exchange Commission. The risks summarized above or described in full below are not the only risks that we face. Additional risks and uncertainties not precisely known to us, or that we currently deem to be immaterial may also materially adversely affect our business, financial condition, results of operations and future growth prospects.
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Part I
Item 1.Business
OVERVIEW

We are a late-stage clinical stage biopharmaceutical company applyingthat is developing CTP-543, a Janus Kinase 1 and Janus Kinase 2 (JAK 1/2) inhibitor that we discovered through the application of our extensive knowledgeDCE Platform® (deuterated chemical entity platform). We are evaluating CTP-543 in a Phase 3 clinical program for the treatment of deuterium chemistryalopecia areata, a serious autoimmune dermatological condition. If these trials are successful, we intend to discover and develop novel small molecule drugs. Selective incorporation of deuterium into known molecules has the potential, onfile a case-by-case basis, to provide better pharmacokineticNew Drug Application, or metabolic properties, thereby enhancing their clinical safety, tolerability or efficacy. Our approach typically starts with previously studied compounds, including approved drugs, which we believe may be improved with deuterium substitution. Our technology provides the opportunity to develop products that may competeNDA, with the non-deuterated drugU.S. Food and Drug Administration, or FDA, in existing markets or to leverage its known activity to expand into new indications. Our deuterated chemical entity platform, or DCE Platform®, has broad potential across numerous therapeutic areas.  We have a pipelinethe first half of clinical candidates as well as research efforts to identify new product candidates.

2023. There are currently no FDA-approved treatments for alopecia areata.
OUR STRATEGY
Our strategyWe are focused on conducting our Phase 3 clinical program for CTP-543 for the treatment of adults with moderate to severe alopecia areata, seeking approval for CTP-543 from the FDA and subsequently commercializing CTP-543 in the United States. CTP-543 is to apply our deuterium technology to previously studied molecules, including approved drugs,currently progressing in which deuterium substitution has the potential to enhance clinical safety, tolerability, or efficacy.  We select pipeline candidates based on the medical needs of patients, commercial opportunity, regulatory considerations, and competitive landscape. 
Key elements of our strategy include:
using deuterium technology to develop deuterated product candidates with potentially improved safety, tolerability or efficacy profiles for new indications that we believe are promising in view of the known biology of the approved drug;

developing our deuterated product candidates quickly through proof-of-concepttwo fully-enrolled Phase 3 clinical trials which could be as early as Phase 1, and then determining whetherin adult patients with moderate to advance it independentlysevere alopecia areata. If we receive positive outcomes from these trials, we intend to file an NDA with the FDA in the first half of 2023. We are conducting pre-commercial activities, with the intent of selling CTP-543 in the United States ourselves or with a partner; andstrategic partners.

commercializing product candidates on our own, or with a strategic partner.




DEUTERIUM

Due to its natural abundance, the average adult human body contains approximately two grams of deuterium. While essentially identical to hydrogenIf we are successful in size and shape, deuterium differs from hydrogen in that it contains an additional neutron. As a result, deuterium forms a more stable chemical bond with carbon than does hydrogen. The deuterium-carbon bond is typically six to nine times more stable than the hydrogen-carbon bond. This has important implicationsgaining FDA approval for drug development because drug metabolism often involves the breaking of hydrogen-carbon bonds.
Because deuterium forms more stable bonds with carbon, deuterium substitution can in some cases alter drug metabolism, including through improved metabolic stability, reduced formation of toxic metabolites, increased formation of desired active metabolites, or a combination of these effects. At the same time, these improvements in drug metabolism are possible without materially altering the intrinsic biological activity of a compound.  Deuterated compounds with enhanced metabolic properties can generally be expected to retain biochemical potency and selectivity similar to their hydrogen analogs. The effects, if any, of deuterium substitution on metabolic properties are highly dependent on the specific molecular positions at which deuterium is substituted for hydrogen. In addition, the metabolic effects of deuterium substitution, if any, are unpredictable, even in compounds that have similar chemical structures.
Potential advantages of product candidates based on our DCE Platform

Using our DCE Platform, we create novel drugs designed to have superior properties - including enhanced clinical safety, tolerability or efficacy - based on compounds that have established pharmacological activity. In many instances, Phase 1 clinical evaluation has the potential to demonstrate whether there will be product differentiation.
Potential advantages of our DCE Platform include the following:

Improved metabolic profile. An improved metabolic profile may potentially reduce or eliminate unwanted side effects or undesirable drug interactions or increase efficacy. Metabolic profile refers to the relative amounts and exposure profile of the parent drug and its metabolites in the body.

Increased half-life. A longer half-life may decrease the number of doses that a patient is required to take per day or provide more consistent exposure of the compound in comparison to the corresponding non-deuterated compound, potentially improving the drug’s therapeutic profile. Half-life is usually defined as the time it takesCTP-543 for the bodytreatment of adults with moderate to clear half of a given concentration of the drug from the plasma.

Avoidance of undesirable metabolism:  By avoiding first pass metabolism,severe alopecia areata, we may be ableintend to improve oral bioavailability, which could potentially lead to better efficacy at a lower dose of drug. First pass metabolism is metabolism that occurs before the drug reaches the circulatory system.

OUR PRODUCT CANDIDATES
Ourevaluate CTP-543 in younger patients with alopecia areata and explore expanding CTP-543 into additional indications. We are also assessing both internal and potential in-licensed candidates for pipeline is focused on leveraging our deuterium expertise and proprietary product platform to develop novel medications designed to enhance patient outcomes in diverse therapeutic areas including autoimmune and inflammatory diseases and central nervous systems (CNS) disorders. The discussion below highlights our most advanced development programs including those being developed by our collaborators.expansion.
CTP-543
Background on Alopecia Areata
Alopecia areata is a serious, chronic autoimmune disease affecting approximately 650,000 Americans at any given time and that results in partial or complete loss of hair on the scalp and/or body. Alopecia areata occurs when the immune system attacks the hair follicles and is characterized as non-scarring hair loss. It presents in a number of patterns including:
Patchy: coin-sized or larger patch or patches of hair loss;
Totalis: no hair on the head;scalp; and
Universalis: no hair anywhere on the body.



Onset can occur at any age including childhood, and it affects both women and men equally. While theThe average age of onset is between 25-35 years, the disease does occur in children, and onset in the first two decades is associated with more severe disease.years. The emotional effect of alopecia areata can be considerable and may result in anxiety and depression or affect personal attributes likesuch as self-esteem and confidence. Alopecia areata may also be associated with other autoimmune conditions such as thyroid disease, vitiligo, allergic rhinitis, asthma, atopic dermatitis, lupus, rheumatoid arthritis, thyroid disease, ulcerative colitis and ulcerative colitis.vitiligo. The most common form of treatment is corticosteroids, including intralesional injections or topical application. However, theycorticosteroids are typically not well tolerated and often provide limited efficacy. There are not an effective treatment option.currently no treatments approved by the FDA for alopecia areata.
CTP-543 Opportunity
We believe that the market opportunity to treat alopecia areata within the United States is significant. Based on a recent large cross-sectional survey study, it is estimated that the current prevalence of alopecia areata in the United States is up to approximately 1.5 million persons (Benigno M. Clinical, Cosmetic and Investigational Dermatology 2020). The study also estimates that about 43% of the alopecia areata population in the United States has 50% or greater loss of scalp hair. Given this prevalence and the substantial impact of alopecia areata on quality of life, the burden of alopecia areata within the United States is considerable. There are currently no FDA-approved treatments for alopecia areata.
CTP-543 Opportunity
CTP-543 was discovered by applying Concert's deuterium chemistry technology to modify ruxolitinib, a Janus kinase ("JAK") inhibitor, which is commercially available underareata, and we believe that the name Jakafi® inmarket opportunity within the United States could support multiple approved treatments.
CTP-543 is an oral JAK 1/2 inhibitor that we are developing for the treatment of certain blood disorders. Ruxolitinibmoderate to severe alopecia areata. The FDA has been used to treat alopecia areata in academic settings, including an investigator-sponsored clinical trial, and has been shown to promote hair growth in individuals with moderate-to-severe disease. In an open-label clinical trialgranted CTP-543 Breakthrough Therapy designation for the treatment of 12adult patients with moderate to severe alopecia
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areata investigators at Columbia University demonstrated that 20 mg of ruxolitinib administered orally twice daily resulted in 9 of 12 patients achieving at least 50% regrowth by the end of the treatment period. Responders averaged 92% regrowth by the end of the treatment period.
In January 2018, we announced that the FDA had grantedand Fast Track designation tofor the treatment of alopecia areata. CTP-543 is currently in Phase 3 development and could be one of the first treatments on the market if approved by the FDA.
Clinical Development of CTP-543
We have completed multiple Phase 2 trials of CTP-543 for the treatment of alopecia areata.
Clinical Development of CTP-543
In 2016, we completed single and multiple ascending dose Phase 1 trials with CTP-543 which enrolled a total of 77 healthy volunteers. The pharmacokinetic measurements showed increased exposure with increasing doses of CTP-543. CTP-543 was well-tolerated across all dose groups and there were no serious adverse events reported in subjects who received CTP-543. In the multiple ascending dose Phase 1 trial of CTP-543, pharmacodynamic analyses were performedmoderate to assess the inhibition of IL-6- and IFN-gamma-mediated JAK/STAT signaling. Consistent with the established pharmacological activity of CTP-543, a dose-related reduction in IL-6-stimulated phosphorylated STAT3 was observed. Also, IFN-gamma-mediated STAT1 signaling, which is believed to play a key role in the pathogenesis ofsevere alopecia areata was significantly inhibited in disease-relevant immune cell types at all doses evaluated.

We also conductedto support the advancement of the program into Phase 3 development. In September 2019, we announced results from a Phase 1 crossover study evaluating the metabolite profiles of CTP-543 and ruxolitinib. In this study, except for the presence of deuterium, no new metabolites were observed with CTP-543.

A Phase 2a2 double-blind, randomized, dose-ranging trial to evaluate twothree sequential doses of CTP-543 (4, 8 and 812 mg twice daily)twice-daily) and a placebo control is ongoing. Approximately 90in 149 patients with moderate-to-severemoderate to severe alopecia areata. Patients treated with either 8 mg twice-daily or 12 mg twice-daily doses of CTP-543 met the primary efficacy endpoint with statistically significant differences (p <0.001) relative to placebo in the percentage of patients achieving a ≥ 50% relative change from baseline at 24 weeks. The 8 mg twice-daily and 12 mg twice-daily dose groups were also significantly different from placebo in the number of patients achieving ≥ 75% and ≥ 90% relative change in Severity of Alopecia Tool, or SALT, score between baseline at 24 weeks. A numerically but not statistically greater percentage of patients treated with the 4 mg twice-daily dose of CTP-543 met the primary efficacy endpoint. At 24 weeks, patients treated with 8 mg twice-daily and 12 mg twice-daily doses compared to placebo also rated significantly greater improvement in their alopecia areata will be enrolledon the Patient Global Impression of Improvement Scale. Treatment with CTP-543 was generally well tolerated. The most common side effects in the study. 8 mg or 12 mg twice-daily dose groups were headache, nasopharyngitis, upper respiratory tract infection, acne, nausea and low-density lipoprotein increase. One serious adverse event of facial cellulitis was reported in the 12 mg twice-daily dose group as possibly related to treatment; however, after a brief interruption, treatment continued and this patient completed the trial. No thromboembolic events were reported during the trial.
In February 2018,June 2020, we released new data analyses from our Phase 2 dose-ranging trial of CTP-543 supporting the design of our Phase 3 program. The new data analyses revealed that statistically significant results were reported for the 8 mg twice-daily and 12 mg twice-daily doses of CTP-543 at more stringent response thresholds, which may be more clinically meaningful to patients, and positive findings were reported for clinician and patient reported outcome measures of scalp hair loss. At 24 weeks, 26% and 42% of patients who received CTP-543 in the 8 mg twice-daily and 12 mg twice-daily cohorts, respectively, achieved an independentabsolute SALT score ≤ 20 (p <0.05 vs. placebo), indicating a clinically-meaningful 80% or greater scalp hair present. Data Monitoring Committee (DMC)from the Clinician Global Impression of Improvement scale showed 75% of clinicians rated the response in the 12 mg twice-daily cohort and 61% of clinicians rated the response in the 8 mg twice-daily cohort as "much improved" or "very much improved" at 24 weeks. For both doses, there was a statistically significant difference from placebo (p <0.001).
In addition, we completed two Phase 2 clinical trials evaluating twice-daily dosing of CTP-543 compared to once-daily dosing of CTP-543. Based on the findings from those trials, we are utilizing the 8 mg twice-daily and 12 mg twice-daily doses in our ongoing clinical development program for CTP-543. The 8 mg twice-daily and 12 mg twice-daily arms of those studies provided efficacy comparable to the 8 mg twice-daily and 12 mg twice-daily arms, respectively, of our Phase 2 dose-ranging trial.
We conducted an end of Phase 2 meeting with the FDA in March 2020 and initiated the CTP-543 Phase 3 clinical program in November 2020, beginning with the THRIVE-AA1 trial. The THRIVE-AA1 trial is a planned interim reviewdouble-blind, randomized, placebo-controlled clinical trial of CTP-543 to evaluate hair regrowth using the safety data following 12SALT score after 24 weeks of dosing in 708 adult patients with 4moderate to severe alopecia areata. The trial is evaluating 8 mg and 12 mg twice-daily doses of CTP-543 orcompared to placebo twice daily. Based on this review,at sites in the DMC provided its recommendation to continue withUnited States, Canada and Europe. We announced the current cohort and to initiate dosingcompletion of enrollment of the THRIVE-AA1 trial in October 2021 and expect to report topline results in the second cohort, wherebyquarter of 2022.
In May 2021, we initiated the THRIVE-AA2 trial, which is our second Phase 3 clinical trial of CTP-543. The THRIVE-AA2 trial is a double-blind, randomized, placebo-controlled clinical trial of CTP-543 to evaluate hair regrowth using the SALT score after 24 weeks of dosing in 517 adult patients will be administeredwith moderate to severe alopecia areata. The trial is evaluating 8 mg and 12 mg twice-daily doses of CTP-543 orcompared to placebo twice daily for 24 weeks. The primary outcome measureat sites in the United States, Canada and Europe. We announced the completion of enrollment of the THRIVE-AA2 trial in January 2022 and expect to report topline results in the third quarter of 2022.
Eligible patients from our efficacy and safety studies with CTP-543 may also enroll in one of our open label, long-term extension studies. In July 2021, we provided an update showing that, relative to our Phase 2a trial is2 clinical trials of CTP-543, hair regrowth using the proportionSALT score was maintained or improved in the great majority of patients achieving at least 50% relative reduction in hair loss as measured bythrough one year of continuous dosing with 12 mg twice-daily of CTP-543.
Additional clinical trials are ongoing to support the severitysubmission of alopecia tool (SALT) score from baseline at Week 24. If appropriate, the protocol may be amended to explore higher doses of CTP-543. We expect to announce topline dataan NDA, which is currently planned for the 4 mg and 8 mg cohorts in the fourth quarterfirst half of 2018.2023.
CTP-692
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Background on Schizophrenia
Schizophrenia is a chronic and devastating neuropsychiatric disorder that is ranked as a leading cause of disability worldwide. The disease afflicts nearly 1% of the world’s population, affecting both men and women equally, and striking all ethnic and socioeconomic groups with a similar level of prevalence. The illness is characterized by multiple symptoms that are categorized into three clusters known as positive symptoms (hallucinations and delusional behaviors), negative symptoms (anhedonia, social withdrawal and apathy), and cognitive dysfunction (diminished capacity for learning, memory, and executive function). The underlying basis of the current antipsychotic therapy is that excessive dopaminergic neurotransmission and dysfunctional D2 receptor signaling plays a key pathophysiological role in the disease, and consequently all typical and atypical antipsychotics in clinical practice possess some level of D2 antagonist activity. Currently available antipsychotic drugs exhibit efficacy for positive symptoms, but have been limited in their capacity to treat negative symptoms and cognitive deficits.



There is an extensive body of evidence supporting N-methyl-d-aspartate, or NMDA, receptor hypofunction as a key underlying mechanism of schizophrenia. The NMDA receptor comprises two binding domains and, in addition to requiring glutamate binding, activation with a co-agonist such as D-serine or glycine is necessary for NMDA receptor activation. D-serine is the most important endogenous co-agonist for synaptic transmission in the human central nervous system. It has been postulated for some time that administration of NMDA co-agonists could benefit patients with schizophrenia since there is evidence that plasma and cerebral spinal fluid, or CSF, levels of endogenous D-serine are reduced in patients with schizophrenia.
CTP-692 Opportunity
CTP-692 is a selective deuterium-modified analog of the endogenous amino acid, D-serine. Based on published preclinical and clinical effects of D-serine, the Company believes that CTP-692 has the potential to help restore NMDA receptor activity in key areas of the brain to improve clinical outcomes in patients with schizophrenia. Clinical studies have shown that levels of D-serine measured in the plasma and CSF of patients with schizophrenia are significantly lower than healthy controls. Academic studies have demonstrated that oral dosing of D-serine can result in dose-dependent improvement in positive, negative, and cognitive symptoms in schizophrenic patients when added to D2 antipsychotics. However, preclinical studies have demonstrated that D-serine can cause nephrotoxicity in rats. In addition, in some patients who received high doses of D-serine, clinical findings suggesting renal impairment were observed. As a result, the clinical development of D-serine has historically been limited.
In preclinical studies, CTP-692 has shown clear dose separation from D-serine in producing indicators of nephrotoxicity, suggesting that CTP-692 could have a larger therapeutic window and therefore be better-suited for development as a human therapeutic agent. CTP-692 will be developed as an adjunctive therapy along with standard antipsychotic medicines in patients with schizophrenia. Based on previous clinical studies of D-serine in patients with schizophrenia and other neurological diseases, Concert has designed CTP-692 to have similar pharmacology to D-serine and potentially improve upon its safety profile.
The Company intends to complete preclinical evaluation and advance CTP-692 into clinical development in 2018.

Preclinical Pipeline

EARLIER-STAGE PIPELINE
We are currently assessing a number of preclinical assetsearlier-stage pipeline candidates as potential development candidates.candidates, including a once-daily, modified release formulation of CTP-543.

COLLABORATION PRODUCT CANDIDATES
Collaboration Product Candidates
WeIn addition to our wholly-owned development programs, we have entered into several collaborative arrangements with companies to develop deuterium-modified versions of their marketed products. The deuterium product candidates may be developedOur partners are currently responsible for an existing indication orall development and future commercialization activities under these arrangements. In each of these collaborations, the deuterium-modified compound was independently discovered by us.
For example, in new indications.
AVP-786
In February 2012, we grantedentered into a development and license agreement, or the Avanir Agreement, with Avanir Pharmaceuticals, Inc., or Avanir, an exclusive worldwide license to develop and commercialize deuterated dextromethorphan analogs, including the d6-dextromethorphan compound, deudextromethorphan. Subsequent to our agreement, Avanir was acquired by Otsuka Pharmaceutical Co., Ltd. and is now a wholly owned subsidiary of Otsuka America, Inc.
Avanir is developingPharmaceuticals Co., Ltd., for the worldwide rights to develop, manufacture and commercialize AVP-786. AVP-786 which is a combination of deudextromethorphan hydrobromide (d6-DM) and an ultra-low dosequinidine sulfate (Q), a CYP2D6 inhibitor, being investigated for the treatment of quinidine.
neurologic and psychiatric disorders. In November 2015,2019, Avanir announced the initiation of thecompleted two Phase 3 clinical program to evaluate the safety and efficacy oftrials evaluating AVP-786 for the treatment of agitation associated with dementia of the Alzheimer’s disease. It expects to enroll approximately 850 patients in two U.S.type. The second of the Phase 3 trials. The U.S. Phase 3clinical trials are expecteddid not meet its primary or key secondary endpoints; however, following additional data analysis, Avanir decided to be completed in 2019 and are expected to provide the basis for registration. Additionally, in October 2017, Avanir initiated a Phase 3 trial enrolling approximately 400 patients to evaluate the safety and efficacy ofcontinue developing AVP-786 for the treatment of agitation associated with Alzheimer's disease including US sites as well as territories outsidedementia of the United States.
CTP-730
In April 2013, we entered intoAlzheimer’s type. Three additional Phase 3 clinical trials and an open label, long-term extension study for Alzheimer’s agitation are ongoing. Additionally, Avanir is conducting a strategic worldwide collaboration with Celgene Pharmaceuticals, Inc., Celgene International Sarl and Celgene Corporation, together referred to as Celgene, related to certain deuterium-substituted compoundsPhase 2/3 clinical trial evaluating AVP-786 for the treatment of inflammation or cancer. Whilenegative symptoms of schizophrenia. Under the collaboration hasAvanir Agreement, we received an upfront payment of $2.0 million and have received milestone payments of $6.0 million. We are eligible to earn up to $37.0 million in regulatory and commercial launch milestone payments with respect to AVP-786 and up to $125.0 million in sales-based milestone payments. Avanir is also required to pay us royalties at defined percentages ranging from the potentialmid-single digits to encompass multiple programs, itlow double digits below 20% on net sales of licensed products on a country-by-country basis. The royalty rate is initially focusedreduced, on one program, CTP-730.
CTP-730a country-by-country basis, during any period within the royalty term when there is a deuterated analog of apremilast.  Apremilast is a selective phosphodiesterase 4 (PDE4) inhibitor approved forno patent claim covering the treatment of psoriasis and psoriatic arthritis. We have completed the Phase 1 clinical evaluation of CTP-730. Once daily dosing of 50 mg of CTP-730 administered for seven dayslicensed product in the Phase 1 clinical trial demonstrated similar steady state exposureparticular country. We sold a portion of our right to


historical data for 30 mg receive these royalties in connection with a financing that we completed in November 2021. The purchasers will collectively own 35% of apremilast twice daily. Treatmentsuch royalties, with CTP-730 was generally well-tolerated and no serious adverse events were observed. Celgene is responsible for any development of CTP-730 beyond the completed Phase 1 clinical trials. Celgene is assessing the path forward for CTP-730. However, CTP-730 has not advanced into new trials at this time.

JZP-386
In February 2013, we licensed the commercial rightspercentage increasing incrementally up to deuterated analogs of sodium oxybate, including JZP-386, to Jazz Pharmaceuticals under an exclusive worldwide license agreement. Sodium oxybate is the active ingredient in Xyrem®, marketed in the United States by Jazz Pharmaceuticals to treat two50% if all of the key symptoms of narcolepsy, excessive daytime sleepiness and cataplexy. JZP-386 is being developed forwarrants issued in connection with the potential treatment of patients with narcolepsy.
In May 2015, we and Jazz Pharmaceuticals announcedfinancing are exercised by the completion of a Phase 1 clinical study. Clinical data from this Phase 1 study demonstrated that JZP-386 provided favorable deuterium-related effects, including higher serum concentrations and correspondingly increased pharmacodynamic, or PD, effects at clinically relevant time points, compared to Xyrem® (sodium oxybate) oral solution. The safety profile of JZP-386 was similar to that observed with Xyrem.Jazz Pharmaceuticals is responsible for any further development of JZP-386 and is continuing to evaluate once-nightly dosing.purchasers.
ASSET PURCHASE AGREEMENT WITH VERTEX PHARMACEUTICALS FOR CTP-656
In July of 2017, we completed a previously announced asset purchase agreement under which Vertex acquiredthe sale of worldwide development and commercialization rights to CTP-656, now known as VX-561, and other assets related to the treatment of cystic fibrosis (CF). CTP-656, now known as VX-561, isto Vertex Pharmaceuticals, Inc., or Vertex. Pursuant to the Asset Purchase Agreement with Vertex, or the Vertex Agreement, we received $160.0 million in cash. Additionally, upon the achievement of certain milestone events, Vertex agreed to pay us an investigational cystic fibrosis transmembrane conductance regulator (CFTR) potentiator that hasaggregate of up to $90.0 million, or the potentialMilestone Obligation.
In May 2021, we entered into an amendment to be used as part of future once-daily combination regimens of CFTR modulators that treat the underlying cause of cystic fibrosis. We received $160Vertex Agreement, or the Vertex Amendment, pursuant to which Vertex paid us $32.0 million in cash upon closing, andin exchange for the removal of the Milestone Obligation. As a result of the Vertex Amendment, we are eligiblenot entitled to receive upany further payments pursuant to $90 million in additional milestones based on regulatory approval in the U.S. and agreement for reimbursement in the first of the U.K., Germany or France.Vertex Agreement.
INTELLECTUAL PROPERTY
We protect our product candidates through the use of patents, trade secrets and careful monitoring of our proprietary know-how. Our patents and patent applications, if they issue as patents, for our lead programs expire between 2028 and 2038. The expected expiration dates listed below are before any patent term extension to which we may be entitled under the Drug Price Competition and Patent Term Restoration Act of 1984 (commonly referred to as the Hatch-Waxman Amendments) or equivalent laws in other jurisdictions where we have issued patents.
CTP-543
We hold avarious patents and pending applications covering the composition of matter of deuterated analogs of ruxolitinib, including CTP-543, and methods of treating hair loss, including alopecia areata, with certain doses of CTP-543.
We hold U.S. Patent No. 9,249,149, or the '149 patent, covering the composition of matter of deuterated analogs of ruxolitinib, including CTP-543, and we have a corresponding U.S. patent applications. Theapplication. We also have a corresponding patent and thepatent application in Europe and corresponding patents in Japan. Such patents and patent applications, if issued, are expected to expire in 2033.
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We also hold U.S. Patent No. 10,561,659, or the '659 patent, covering methods of treating hair loss, including alopecia areata, with certain doses of CTP-543, and we have a corresponding U.S. patent application. We have corresponding patent applications in Europe and Japan, whichJapan. Such patent and patent applications, if they issue as patents,issued, are expected to expire in 2033. We have retained all of the CTP-543 patent rights. 2037.
In October 2017,April 2018, the Patent Trial and Appeal Board, or PTAB, denied a petition by Incyte Corporation to instituteinstituted an inter partes review, or IPR, brought against the '149 patent by Incyte Corporation, or Incyte. In April 2019, the PTAB issued a final written decision in connection with the IPR that held that the claims of Concert'sthe '149 patent were unpatentable as obvious. In January 2020, the U.S. Court of Appeals for the Federal Circuit, or Federal Circuit, granted our motion to vacate and remand the PTAB final written decision in light of the Federal Circuit ruling on the Constitution’s Appointments Clause in Arthrex, Inc. v. Smith & Nephew, Inc. The Director of the Patent No. 9,249,149.and Trademark Office, or PTO, sought review of both Arthrex and the decision in our case in the Supreme Court. In June 2021, the Supreme Court decided that the remedy for a violation of the Appointments Clause should not be a hearing before a new panel of PTAB judges, but a remand to the PTO to allow the Director to consider whether to modify the decision of the PTAB. The denialSupreme Court remanded our case to the Federal Circuit in light of Incyte's IPR petition upholdsArthrex, and the validityFederal Circuit granted our request for a remand to the PTO Director. We filed a request to have the PTO Director review the final written decision; however, that request was denied in January 2022. As a result, we intend to proceed with our appeal to the Federal Circuit. The '149 patent remains valid and enforceable until any appeals by us have been exhausted. In November 2021, Incyte also filed an opposition against the corresponding European patent to the '149 patent.
In addition, on May 12, 2021, the PTAB instituted a post grant review, or PGR, brought against the '659 patent by Incyte. We expect the PTAB to issue a final written decision in connection with the PGR by May 2022. We intend to vigorously defend the '149 and '659 patents.
Earlier-Stage Pipeline
We also have patent portfolios that are related to a number of Concert's compositionearlier-stage pipeline candidates. These patent portfolios are wholly owned by us and include issued patents or patent applications that claim deuterated analogs of matter patent claims covering CTP-543.a number of non-deuterated drugs and drug candidates.
AVP-786
We holdgranted Avanir exclusive licenses under our patent rights related to AVP-786 pursuant to the Avanir Agreement. These licensed patent rights include U.S. patents and pending applications covering the composition of matter and methods of use of deudextromethorphan and other deuterated dextromethorphan analogs, as well as aanalogs. Such U.S. patent application covering methods of use of certain other dextromethorphan compounds. These patents and patent applications, if issued, are expected to expire between 2028 and 2030. We have also licensed to Avanir corresponding patents and patent applications in Europe and Japan thatJapan. Such foreign patents and patent applications, if issued, are expected to expire in 2028. We have granted exclusive licenses under these patent rights to Avanir.
JZP-386
We hold two U.S. patents, as well as a corresponding U.S. patent application, covering the composition of matter of deuterated analogs of sodium oxybate, including JZP-386, and methods of using them for treating certain diseases and disorders, including narcolepsy. These patents and patent applications are expected to expire in 2030. We hold a corresponding European patent that is expected to expire in 2030. We also have U.S. patents covering pharmaceutical compositions of JZP-386 and methods of use of JZP-386 for treating certain diseases and disorders, including narcolepsy, as well as patent applications in the United States,


Europe and Japan, covering the composition of matter and methods of use of JZP-386, that are expected to expire in 2032. We have granted exclusive licenses under these patent rights to Jazz Pharmaceuticals.
CTP-730
We hold U.S. patents covering the composition of matter and methods of use of CTP-730. The patents are expected to expire in 2030.  We also hold corresponding patents in Europe and Japan that are expected to expire in 2030.  We have granted exclusive licenses under these patent rights to Celgene.
CTP-692
We hold a U.S. patent application covering compositions of matter and methods of use of CTP-692. The patent, if issued, is expected to expire in 2038.  We have retained all of the CTP-692 patent rights. 
Other Product Candidates
We also have patent portfolios that are related to a number of other programs. These patent portfolios are wholly owned by us. These include issued patents or patent applications that claim deuterated analogs of more than 90 non-deuterated drugs and drug candidates.Patent Term
The term of individual patents depends upon the legal term of the patents in the countries in which they are obtained. In the United States and other countries in which we file, the patent term is 20 years from the earliest date of filing a non-provisional patent application.
Under U.S. patent law, the patent term may be extended by patent term adjustment due to certain failures of the U.S. Patent and Trademark OfficePTO to act in a timely manner. The patent term of a patent that covers an FDA-approved drug may also be eligible for patent term extension, which permits patent term restoration as compensation for the patent term lost during the FDA regulatory review process. The Hatch-Waxman Amendments permit a patent term extension of up to five years beyond the expiration of the patent. The length of the patent term extension is related to the length of time the drug is under regulatory review. Patent extension cannot extend the remaining term of a patent beyond a total of 14 years from the date of product approval and only one patent applicable to an approved drug may be extended. Similar provisions are available in Europe and other non-U.S. jurisdictions to extend the term of a patent that covers an approved drug. In the future, if and when our pharmaceutical products receive FDA approval, we expect to apply for patent term extensions on patents that we believe are eligible for such extension. We also intend to seek patent term extensions in other jurisdictions where these are available. However, there is no guarantee that the applicable authorities, including the FDA, will agree with our assessment of whether such extensions should be granted, and even if granted, the length of such extensions.
Trade Secrets
We also rely on trade secrets and careful monitoring of our proprietary know-how to protect aspects of our business that are not amenable to, or that we do not consider appropriate for, patent protection, including our DCE Platform, such as:

our methods of evaluating candidate compounds for deuteration;

protection.
our bioanalytical methods for identifying and measuring metabolites formed by the in vitro and in vivo metabolism of deuterated compounds;
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our analytical methods for evaluating how selective deuterium substitution affects different pharmacokinetic and metabolic parameters in vitro and in vivo systems; and

our methods to determine the degree of deuterium substitution in compounds we manufacture.
MANUFACTURING AND SUPPLY
We currently rely, and expect to continue to rely, on third parties for the manufacture of product candidates for our clinical trials. We obtain these manufacturing services, including both the manufacture of the active pharmaceutical ingredients and finished drug product, on a purchase order basis and have not yet entered into long-term supply contracts with any of these third partythird-party manufacturers. We expect to rely on third parties for commercial manufacturing for any of our product candidates that receive marketing approval.


We believe that all of the deuterium that we use inWhen manufacturing our product candidates, is currently derived, directly or indirectly, fromwe incorporate deuterium oxide. For most of our deuterium supply we rely on bulk supplies ofusing either deuterium oxide which we currently source from multiple suppliers, including two located in North America, one of which is in the United States.
Certain of our manufacturing processes for our product candidates incorporate deuterium by usingor deuterated chemical intermediates or reagents that(which themselves are derived from deuterium oxide. For the deuterated chemical intermediates and reagents,oxide). As a result, we may be subject to the license requirements applicable to deuterium oxide. In addition, the manufacturer of the deuterated chemical intermediate or reagent may themselves be requiredrely on being able to obtain deuterium oxide under applicable licensing requirements. Most of the manufacturers of theseand transport deuterated chemical intermediates and reagents are not locatedmaterials in countries that produce bulk quantities of deuterium oxide. Therefore,order to manufacture our ability to source these deuterated chemical intermediates or reagents will depend on the ability of these manufacturers to obtain deuterium oxide from other countries.product candidates.
We purchase our raw materials on a purchase order basis and have not entered into long-term supply contracts with any of these third partythird-party suppliers. We believe that the raw materials for our product candidates are readily available and that the cost of manufacturing for our product candidates will not preclude us from selling them profitably, if approved for sale.
COMMERCIALIZATION
We have not yet established a sales, marketing or product distribution infrastructure. We plan to use a combination of third partythird-party collaboration, licensing and distribution arrangements and a focused in-house commercialization capability to sell any of our products that receive marketing approval. With respect to the United States, we plan to seek to retain full commercialization rights for products that we can commercialize with a specialized sales force and to retain co-promotion or similar rights when feasible in indications requiring a larger commercial infrastructure. We plan to collaborate with third parties for commercialization in the United States of any products that require a large sales, marketing and product distribution infrastructure. We also plan to collaborate with third parties for commercialization outside the United States.
We plan to build a marketing and sales management organization to create and implement marketing strategies for any products that we market through our own sales organization and to oversee and support our sales force. We expect the responsibilities of the marketing organization would include developing educational initiatives with respect to approved products and establishing relationships with thought leaders in relevant fields of medicine.
COMPETITION
The development and commercialization of new drug products is highly competitive. We expect that we, and our collaborators, will face significant competition from major pharmaceutical companies, specialty pharmaceutical companies and biotechnology companies worldwide with respect to our product candidates that we, or they, may seek to develop or commercialize in the future. Specifically, there are a number of large pharmaceutical and biotechnology companies that currently market and sell products or are pursuing the development of product candidates for the treatment of neurologic disorders, autoimmune disorders and inflammation, which are key indications for our development programs.disorders. Our competitors may succeed in developing, acquiring or licensing technologies and drug products that are more effective, simpler to use, have fewer or more tolerable side effects or are less costly than any product candidates that we are currently developing or that we may develop or acquire, which could render our product candidates obsolete and noncompetitive.

Our commercial opportunity could be reduced or eliminated if our competitors develop and commercialize products that are safer, more effective, have fewer or less severe side effects, are more convenient or are less expensive than any products that we, or our collaborators, may develop. Our competitors also may obtain FDA or other marketing approval for their products before we, or our collaborators, are able to obtain approval for ours, which could reduce our ability to utilize expedited regulatory pathways and could result in our competitors establishing a strong market position before we, or our collaborators, are able to enter the market.

In addition, our competitors may succeed in obtaining and asserting patents that dominate our products, preventing our operational freedom.
Many of our existing and potential future competitors may have significantly greater financial resources and expertise in research and development, manufacturing, nonclinical testing, conducting clinical trials, obtaining marketing approvals and marketing approved products than we do. Mergers and acquisitions in the pharmaceutical and biotechnology industries may result in even more resources being concentrated among a smaller number of our competitors. Smaller or early stageearly-stage companies may also prove to be significant competitors, particularly through collaborative arrangements with large and established companies. These competitors also compete with us in recruiting and retaining qualified scientific and management personnel and establishing clinical trial sites and patient registration for clinical trials, as well as in acquiring technologies complementary to, or necessary for, our programs.

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Many pharmaceutical and biotechnology companies have begun to cover deuterated analogs of their product candidates in patent applications and may develop these deuterated compounds. Some of these pharmaceutical and biotechnology companies may have significantly greater financial resources and expertise in research and development, manufacturing, nonclinical testing, conducting clinical trials, obtaining marketing approvals and marketing approved products than we do. In some cases, these competitors may be interested inWe are developing deuterated compounds that we may be interested in developing for ourselves. In addition, these competitors may enter into collaborative arrangements or business combinations that result in their ability to research and develop deuterated compounds more effectively than us. Our potential competitors also include academic institutions, government agencies and other public and private research organizations.

CTP-543

CTP-543 is a deuterated analog of ruxolitinib, which is being developedas an oral agent for the treatment of moderate-to-severemoderate to severe alopecia areata, an autoimmune disease that results in partial or complete loss of hair on the scalp and body.areata. If CTP-543 receives marketing approval for this indication, it may face competition from a number of other product candidates that are being studied for alopecia areata. A numberOther companies in late-stage development of companies are developingoral JAK inhibitors having different subtype selectivities for the treatment of alopecia areata including Aclaris Therapeutics, LEO Pharmainclude Eli Lilly and Pfizer.

CTP-692

CTP-692 is a deuterated analog of D-serine, which is being developed for the adjunctive treatment of schizophrenia. There are a number of candidates in clinical development for adjunctive treatment of schizophrenia, exploring cognitive or negative symptoms of the disease. For example, Acadia PharmaceuticalsCompany and SyneuRx International [Taiwan] Corp. are developing adjunctive treatments for schizophrenia.

AVP-786
Avanir is developing AVP-786 for the treatment of agitation associated with Alzheimer's disease and other neurologic or psychological disorders. There are competing marketed drugs and product candidates in clinical development for each indication. Intra-Cellular Therapies, Axsome Therapeutics, and Otsuka Pharmaceuticals and their partner Lundbeck, are developing treatments for agitation in patients with Alzheimer's disease.

JZP-386

JZP-386 is a deuterated analog of sodium oxybate, which is being developed for the treatment of excessive daytime sleepiness and cataplexy in patients with narcolepsy. The current standard of care is sodium oxybate. Avadel Pharmaceuticals is developing an extended release formulation of sodium oxybate for the treatment of narcolepsy. Hikma Pharmaceuticals PLC developed a generic version of Xyrem® for the treatment of narcolepsy, which was approved by the FDA in January 2017 but will not be marketed until 2023, or earlier under certain circumstances.

CTP-730

CTP-730 is a phosphodiesterase 4, or PDE4, inhibitor that has potential for the treatment of various inflammatory diseases. The non-deuterated drug apremilast is marketed for certain types of psoriasis and psoriatic arthritis. It is also being evaluated for efficacy in other chronic inflammatory diseases. If CTP-730 receives marketing approval, the competition it may face will depend on the particular inflammatory disease for which it receives approval.Pfizer Inc.
GOVERNMENT REGULATIONS
Government authorities in the United States, at the federal, state and local level, and in other countries and jurisdictions, including the European Union, extensively regulate, among other things, the research, development, testing, manufacture, manufacturing changes, packaging, storage, recordkeeping, labeling, advertising, promotion, sales, distribution, marketing and import and export of pharmaceutical products. The processes for obtaining regulatory approvals in the United States and in foreign countries and jurisdictions, along with subsequent compliance with applicable federal, state, local and foreign statutes and regulations, and other regulatory authorities, require the expenditure of substantial time and financial resources.
Review and Approval of Drugs in the United States
In the United States, the FDA regulates drugs under Thethe Federal Food, Drug, and Cosmetic Act, or FDCA, and implementing regulations. The process of obtaining regulatory approvals and the subsequent compliance with appropriate federal, state, local


and foreign statutes and regulations requires the expenditure of substantial time and financial resources. Failure to comply with the applicable U.S. requirements at any time during the product development process, approval process or after approval may subject an applicant and/or sponsor to a variety of administrative or judicial sanctions, including refusal by the FDA to approve pending applications, withdrawal of an approval, imposition of a clinical hold, issuance of warning letters and other types of letters, voluntary product recalls, product seizures, total or partial suspension of production or distribution, injunctions, fines, refusals of government contracts, restitution, disgorgement of profits or civil or criminal investigations and penalties brought by the FDA and the Department of Justice or other governmental entities.
An applicant seeking approval to market and distribute a new drug product in the United States must typically undertake the following:
completion of nonclinical laboratory tests, animal studies and formulation studies in compliance with the FDA’s good laboratory practice,practices, or GLP, regulations;GLPs;

production of well-characterized drug substance and drug product, and potentially matching placebos;

submission to the FDA of an investigational new drug application, or IND application, which allows human clinical trials to begin unless the FDA otherwise informs the drug’s sponsor within 30 days;

agreement by clinical investigators and their clinical trial sites, followed by approval by an independent institutional review board, or IRB, representing each clinical site, before the clinical trial may be initiated at that site;

performance of adequate and well-controlled human clinical trials in accordance with the FDA’s current Good Clinical Practices,good clinical practices, or GCPs, to establish the safety and efficacy of the proposed drug product for each indication;

preparation and submission to the FDA of a New Drug Application, oran NDA;

review of the NDA by an FDA advisory committee, where appropriate or if applicable;

satisfactory completion of one or more FDA inspections of the manufacturing facility or facilities at which the drug product, and the active pharmaceutical ingredient or active ingredients thereof, are produced to assess compliance with the FDA’s current good manufacturing practices, or cGMPs, and to assure that the facilities, methods and controls are adequate to ensure the product’s identity, strength, quality and purity;

payment of user fees and securing FDA approval of the NDA; and

compliance with any post-approval requirements, including a risk evaluation and mitigation strategy, or REMS, and any post-approval studies required by the FDA.
Nonclinical Studies and an IND
Before testing any investigational drug in humans, the product candidate must undergo rigorous nonclinical testing. Nonclinical studies can include in vitro and animal studies to assess the potential for efficacy and adverse events and, in some cases, to
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establish a rationale for human therapeutic use. The conduct of nonclinical studies is subject to federal regulations and requirements, including GLP regulations.GLPs. Other studies include laboratory evaluation of the purity, stability and physical form of the manufactured drug substance or active pharmaceutical ingredient and the physical properties, stability and reproducibility of the formulated drug or drug product. An IND sponsor must submit the results of the relevant nonclinical tests, including all tests conducted under GLP conditions,GLPs, together with chemistry, manufacturing and controls information, analytical data, any available clinical data or literature and plans for clinical studies, among other things, to the FDA as part of an IND. Some nonclinical testing, such as longer-term toxicity testing, animal tests of reproductive adverse events and carcinogenicity, may continue after the IND is submitted. An IND is a request for authorization from the FDA to administer an investigational drug to humans, and it must become effective before clinical trials may begin. The central focus of an IND submission is on the general investigational plan and the protocol(s) for clinical studies. An IND automatically becomes effective 30 days after receipt by the FDA, unless before that time the FDA raises concerns or questions related to a proposed clinical trial, including concerns that human research subjects will be exposed to unreasonable health risks, and places the trial onimposes a clinical hold or partial clinical hold. In such a case, the IND sponsor and the FDA must resolve any outstanding concerns before the clinical trial can begin. A clinical trial on partial clinical hold may begin, but under the limitations set forth by FDA. As a result, submission of an IND may not result in the FDA allowing clinical trials to commence.commence or commence as originally requested.
Following commencement of a clinical trial under an IND, the FDA may place a partial or complete clinical hold on that trial. A clinical hold is an order issued by the FDA to the sponsor to delay a proposed clinical investigation or to suspend an ongoing investigation. A partial clinical hold is a delay or suspension of only part of the clinical work requested under the IND. For example, a specific protocol or part of a protocol is not allowed to proceed, while other protocols may do so. No more than 30 days after imposition of a clinical hold or partial clinical hold, the FDA will provide the sponsor a written explanation of the basis for the hold. Following issuance of a clinical hold or partial clinical hold, an investigation may only resume after the FDA has notified the


sponsor that the investigation may proceed. The FDA will base that determination on information provided by the sponsor correcting the deficiencies previously cited or otherwise satisfying the FDA that the investigation can proceed.
Human Clinical Studies in Support of an NDA
Clinical trials involve the administration of the investigational product to human subjects under the supervision of qualified investigators in accordance with GCP requirements,GCPs, which include, among other things, the requirement that all research subjects provide their informed consent in writing before their participation in any clinical trial. Clinical trials are conducted under written study protocols detailing, among other things, the objectives of the study, the parameters to be used in monitoring safety and the effectiveness criteria to be evaluated. A protocol for each clinical trial and any subsequent protocol amendments must be submitted to the FDA as part of the IND. In addition, an IRB representing each institution participating in the clinical trial must review and approve the plan for any clinical trial before it commences at that institution, and the IRB must conduct continuing review and reapprove the study at least annually. The IRB must review and approve, among other things, the study protocol and informed consent information to be provided to study subjects. An IRB must operate in compliance with FDA regulations. Information about certain clinical trials must be submitted within specific timeframes to the NIHNational Institute of Health for public dissemination on their ClinicalTrials.gov website.
A sponsor who wishes to conduct a clinical trial outside of the United States may, but need not, obtain FDA authorization to conduct the clinical trial under an IND. The FDA will accept a well-designed and well-conducted foreign clinical study not conducted under an IND if the study was conducted in accordance with GCPs, and the FDA is able to validate the data through an onsite inspection if deemed necessary.
Human clinical trials to evaluate therapeutic indications to support NDAs are typically conducted in three sequential phases, which may overlap or be combined:
Phase 1:The product candidate is initially introduced into healthy human subjects or patients with the target disease or condition and tested for safety, dosage tolerance, absorption, metabolism, distribution, excretion and, if possible, to gain an early indication of its effectiveness.
Phase 2:The product candidate is administered to a limited patient population to identify possible adverse effects and safety risks, to preliminarily evaluate the efficacy of the product for specific targeted diseases and to determine dosage tolerance and dosage for Phase 3 studies.
Phase 3:The product candidate is administered to an expanded patient population, generally at geographically dispersed clinical trial sites, in well-controlled clinical trials to generate enough data to statistically evaluate the efficacy and safety of the product for approval, to establish the overall risk-benefit profile of the product and to provide adequate information for the labeling of the product.
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Post-approval trials, sometimes referred to as Phase 4 clinical trials, may be conducted after initial marketing approval. These trials are used to gain additional experience from the treatment of patients in the intended therapeutic indication and are commonly intended to generate additional safety data regarding use of the product in a clinical setting. Progress reports detailing the results of the clinical trials must be submitted at least annually to the FDA and written IND safety reports must be submitted to the FDA and investigators for serious and unexpected suspected adverse events, or any findings from other studies or animal or in vitro testing that suggests a significant risk for human subjects.subjects, and any clinically important increase in the rate of a serious suspected adverse reaction over that listed in the protocol or investigator brochure. The sponsor must submit an IND safety report within 15 calendar days after the sponsor determines that the information qualifies for reporting. The sponsor also must notify the FDA of any unexpected fatal or life-threatening suspected adverse reaction within seven calendar days after the sponsor’s initial receipt of the information. Phase 1, Phase 2 and Phase 3 clinical trials may not be completed successfully within any specified period, or at all. Furthermore, the FDA or the sponsor may suspend or terminate a clinical trial at any time on various grounds, including a finding that the research subjects are being exposed to an unacceptable health risk. Similarly, an IRB can suspend or terminate approval of a clinical trial at its institution, or an institution it represents, if the clinical trial is not being conducted in accordance with the IRB’s requirements or if the drug has been associated with unexpected serious harm to patients. Additionally, some clinical trials are overseen by an independent group of qualified experts organized by the clinical trial sponsor, known as the data monitoring committee (DMC) or board. This group provides authorizationrecommendations for whether or not a trial may move forward at designated check points based on review of certain data from the trial. The FDA will often inspect one or more clinical sites in late-stage clinical trials to assure compliance with GCPGCPs and the integrity of the clinical data submitted.

A manufacturer of an investigational drug for a serious disease or condition is required to make available, such as by posting on its website, its policy on evaluating and responding to requests for individual patient access to such investigational drug. This requirement applies on the earlier of the first initiation of a Phase 2 or Phase 3 trial of the investigational drug or, as applicable, 15 days after the drug receives a designation as a Breakthrough Therapy, Fast Track product or regenerative advanced therapy.
Concurrent with clinical trials, companies usually complete additional animal studies and must also develop additional information about the characteristics of the product candidate and finalize a process for manufacturing the drug product in commercial quantities in accordance with cGMPs. The manufacturing process must be capable of consistently producing quality batches of the product candidate and manufacturers must develop, among other things, methods for testing the identity, strength, quality and purity of the final drug product. Additionally, appropriate packaging must be selected and tested, and stability studies must be conducted to demonstrate that the product candidate does not undergo unacceptable deterioration over its shelf life and to identify appropriate storage conditions for the product candidate.
Submission of an NDA to the FDA
Assuming successful completion of required clinical testing and other requirements, the results of the nonclinical and clinical studies, together with detailed information relating to the product’s chemistry, manufacture, controls and proposed labeling, among other things, are submitted to the FDA as part of an NDA requesting approval to market the drug product for one or more indications. Data may come from company-sponsored clinical trials intended to test the safety and efficacy of a product’s use or from a number of alternative sources, including studies initiated by investigators. To support marketing approval, the data submitted must be sufficient in quality and quantity to establish the safety and efficacy of the investigational drug to the satisfaction of the FDA. FDA approval of an NDA must be obtained before a drug may be marketed in the United States. Under federal law,the Prescription Drug User Fee Act, or PDUFA, the submission of most NDAs is additionally subject to a number of application and user fees.fee, which is adjusted on an annual basis.
Under certain circumstances, the FDA will waive the application fee for the first human drug application that a small business, defined as a company with less than 500 employees, or its affiliate submits for review. An affiliate is defined as a business entity that has a relationship with a second business entity if one business entity controls, or has the power to control, the other business entity, or a third party controls, or has the power to control, both entities.
The FDA conducts a preliminary review of an NDA within 60 days of its receipt to determine whether the application is sufficiently complete to permit substantive review and informs the sponsor by the 74th day after the FDA’s receipt of the submission of its decision whether to determine whetheraccept the application is sufficiently completeNDA for filing. Such decision could include a refusal to permit substantive review.file by the FDA. The FDA may also request additional information rather than accept an NDA for filing. In this event, the application must be


resubmitted with the additional information. The resubmitted application is also subject to review before the FDA accepts it for filing. Once the submission is accepted for filing, the FDA begins an in-depth substantive review.review to determine, among other things, whether the product is safe and effective and whether the facility in which it is manufactured, processed, packaged or held meets standards, including cGMPs. The FDA has agreed to specified performance goals under PDUFA in the review process of NDAs. Most such applications are meant to be reviewed within ten months from the date of filing, and most applications for “priority review” products are meant to be reviewed within six months of filing. The FDA does not always meet its PDUFA goal dates for standard or priority NDAs, and the review process may be extended by the FDA for three
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additional months to consider new information or clarification provided by the applicant to address an outstanding deficiency identified by the FDA following the original submission.
Before approving an NDA, the FDA typically will inspect the facility or facilities where the product is manufactured. The FDA will not approve an application unless it determines that the manufacturing processes and facilities are in compliance with cGMP requirementscGMPs and adequate to assure consistent production of the product within required specifications. Additionally, before approving an NDA, the FDA will typically inspect one or more clinical sites to assure compliance with GCP.GCPs.
The FDA also may require submission and agreement of a risk evaluation and mitigation strategy, or REMS plan to mitigate any identified or suspected serious risks.risks prior to approving an NDA. The REMS plan could include medication guides, physician communication plans, assessment plans and elements to assure safe use, such as restricted distribution methods, patient registries or other risk minimization tools. If the FDA concludes that a REMS is needed, the sponsor of the NDA must submit a proposed REMS; the FDA will not approve the NDA without a REMS, if required.
The FDA may also refer an application for a novel drug to an advisory committee or explain why such referral was not required. Typically, an advisory committee is a panel of independent experts, including clinicians and other scientific experts, that reviews, evaluates and provides a recommendation as to whether the application should be approved and under what conditions. The FDA is not bound by the recommendations of an advisory committee, but it considers such recommendations carefully when making decisions.
The FDA’s Decision on an NDA
On the basis of the FDA’s evaluation of the NDA and accompanying information, including the results of the inspection of the manufacturing facilities and clinical sites, the FDA may issue an approval letter or a complete response letter. An approval letter authorizes commercial marketing of the product with specific prescribing information for specific indications. A complete response letter generally outlines the deficiencies in the submission and may require substantial additional testing or information in order for the FDA to reconsider the application. If and when those deficiencies have been addressed to the FDA’s satisfaction in a resubmission of the NDA, the FDA willmay issue an approval letter. The FDA has committed to reviewing such resubmissions in two or six months depending on the type of information included. Even with submission of this additional information, however, the FDA ultimately may decide that the application does not satisfy the regulatory criteria for approval.
If the FDA approves a product, it may limit the approved indications for use for the product, require that contraindications, warnings or precautions be included in the product labeling, require that post-approval studies, including Phase 4 clinical trials, be conducted to further assess the drug’s safety after approval, require testing and surveillance programs to monitor the product after commercialization or impose other conditions, including distribution restrictions or other risk management mechanisms, including a REMS, which can materially affect the potential market and profitability of the product. TheIn addition, the FDA may preventcould require that a “black box” warning be included in the product label at the time of approval of a product or limit further marketingfollowing approval of a product based on the results of post-market studies or surveillance programs. After approval, some types of changes to the approved product, such as adding new indications, manufacturing changes and additional labeling claims, are subject to further testing requirements and FDA review and approval.
The product may also be subject to official lot release, meaning that the manufacturer is required to perform certain tests on each lot of the product before it is released for distribution. If the product is subject to official release, the manufacturer must submit samples of each lot, together with a release protocol showing a summary of the history of manufacture of the lot and the results of all of the manufacturer’s tests performed on the lot, to the FDA. The FDA may in addition perform certain confirmatory tests on lots of some products before releasing the lots for distribution. Finally, the FDA will conduct laboratory research related todrug class, even if the safety and effectiveness of drug products.concern is not known to be associated with that specific product.
Expedited developmentDevelopment and review programsReview Programs
The FDA has various programs, including Fast Track Designation,designation, Breakthrough Designation,Therapy designation, priority review and accelerated approval, which are intended to expedite or facilitate the development and review of new drugs that meet certain criteria and/or provide for approval on the basis of surrogate endpoints.
New drugs are eligible for Fast Track designation if they are intended to treat a serious or life-threatening condition and demonstrate the potential to address an unmet medical need for the condition. Fast Track designation is intended to facilitate early and frequent meetings between the FDA and the sponsor company during development and the FDA may agree to review


sections of an NDA on a rolling basis before the complete NDA is submitted. A drug may be eligible for Breakthrough DesignationTherapy designation if the drug is intended to treat a serious or life-threatening disease and preliminary clinical evidence indicates that the drug may demonstrate substantial improvement over existing therapies. Breakthrough DesignationTherapy designation provides for frequent meetings between the sponsor and the FDA, involving senior and experienceexperienced review staff, as appropriate, in a collaborative, cross-functional review and the assignment of an FDA project lead to facilitate efficient review of the development program and serve as a scientific liaison with the sponsor. Although Fast Track and Breakthrough Therapy designation do not affect the regulatory standards for approval, the frequent interactions with the FDA may facilitate a more efficient development program. In addition, the NDAs for drugs granted Fast Track and Breakthrough DesignationTherapy designation may become eligible for priority review. Priority review is designed for drug candidates that offer significant improvements in safety or effectiveness or fill an unmet medical need and provides for an initial review within six months of acceptance of the NDA for filing, as compared to a standard review of ten months after acceptance for filing. Accelerated approval provides an earlier
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approval of drugs that treat serious diseases, and that fill an unmet medical need, based on a surrogate endpoint that the FDA determines is reasonably likely to predict a clinical benefit. As a condition of approval, the FDA may require that the sponsor of a drug receiving accelerated approval perform post-marketing confirmatory clinical trials. In addition, for products being considered for accelerated approval, the FDA generally requires, unless otherwise informed by the agency, that all advertising and promotional materials intended for dissemination or publication within 120 days of marketing approval be submitted to the agency for review during the pre-approval review period.
Even if a drug candidate qualifies for one or more of these programs, the FDA may later decide that the drug no longer meets the conditions for qualification or that the time period for FDA review will not be shortened. Regardless of any accelerated review period under these programs, the review process may be extended by the FDA for three additional months to consider new information or clarification provided by the applicant to address an outstanding deficiency identified by the FDA following the original submission.
Section 505(b)(2) NDAs
NDAs for most new drug products are based on two adequate and well-controlled clinical trials which must contain substantial evidence of the safety and efficacy of the proposed new product. These applications are generally submitted under Section 505(b)(1) of the FDCA. The FDA is, however, authorized to approve an alternative type of NDA under Section 505(b)(2) of the FDCA. This latter type of application allows the applicant to rely, in part, on the FDA’s previous findings of safety and efficacy for a similar reference product, or may rely on published literature.literature for a previously approved drug product, also known as a listed drug. Specifically, Section 505(b)(2) applies to NDAs for a drug for which the applicant relies, as part of its application, on certain investigations made to show whether or not the drug is safe and effective for use “that were not conducted by or for the applicant and for which the applicant has not obtained a right of reference or use from the person by or for whom the investigations were conducted.”
Thus, Section 505(b)(2) authorizes the FDA to approve an NDA based on safety and effectiveness data that were not developed by the applicant. NDAs filed under Section 505(b)(2) may provide an alternate and potentially more expeditious pathway to FDA approval for new or improved formulations or new uses of previously approved products. If the Section 505(b)(2) NDA applicant can establish that reliance on the FDA’s previous approval is scientifically appropriate, the applicant may eliminate the need to conduct certain nonclinical or clinical studies of the new product. The FDA may also require companies to perform additional studies or measurements to support the change from the approved product. The FDA may then approve the new drug candidate for all or some of the label indications for which the referenced productlisted drug has been approved, subject to any regulatory exclusivities or patents for the listed drug (as further described below), as well as for any new indication or use sought by the Section 505(b)(2) NDA applicant.
If our partners submit NDAs for approval of deuterated analogs of marketed compounds for which they are the NDA holder, we believe that in certain cases the FDA may allow referencing of data from the non-deuterated compound in support of the application for approval of the deuterated product. Since this referencing by our partners would involve use of their own data and not require the use of another party’s data, it would constitute a Section 505(b)(1) application.
Post-Approval Requirements
Drugs manufactured or distributed pursuant to FDA approvals are subject to pervasive and continuing regulation by the FDA, including, among other things, requirements relating to recordkeeping, periodic reporting, product sampling and distribution, advertising and promotion and reporting of adverse experiences with the product. After approval, most changes to the approved product, such as adding new indications or other labeling claims, are subject to prior FDA review and approval. There also are continuing,is an annual prescription drug user fee requirements for any marketed products, and the establishments at which such products are manufactured, as well as new application fees for supplemental applications with clinical data.
In addition, drug manufacturers and other entities involved in the manufacture and distribution of approved drugs are required to register their establishments with the FDA and state agencies and are subject to periodic unannounced inspections by the FDA and these state agencies for compliance with cGMP requirements.cGMPs. Changes to the manufacturing process are strictly regulated and often require prior FDA approval before being implemented. FDA regulations also require investigation and correction of any deviations from cGMPcGMPs and impose reporting and documentation requirements upon the sponsor and any third-party manufacturers that the sponsor may decide to use. Accordingly, manufacturers must continue to expend time, money and effort in the area of production and quality control to maintain cGMP compliance.


compliance with cGMPs.
Once an approval is granted, the FDA may withdraw the approval if compliance with regulatory requirements and standards is not maintained or if problems occur after the product reaches the market. Later discovery of previously unknown problems with
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a product, including adverse events or problems with manufacturing processes of unanticipated severity or frequency, or failure to comply with regulatory requirements, may result in revisions to the approved labeling to add new safety information; imposition of post-market studies or clinical trials to assess new safety risks; or imposition of distribution or other restrictions under a REMS program.REMS. Other potential consequences include, among other things:
restrictions on the marketing or manufacturing of the product, complete withdrawal of the product from the market or product recalls;
fines, warning letters or holds on post-approval clinical trials;
refusal of the FDA to approve pending NDAs or supplements to approved NDAs, or suspension or revocationwithdrawal of product license approvals;
product seizure or detention, or refusal to permit the import or export of products; or
injunctions or the imposition of civil or criminal penalties.
The FDA strictly regulates marketing, labeling, advertising and promotion of products that are placed on the market. Drugs may be promoted only for the approved indications and in accordance with the provisions of the approved label. The FDA and other agencies actively enforce the laws and regulations prohibiting the promotion of off-label uses, and a company that is found to have improperly promoted off-label uses may be subject to significant liability.
In addition, the distribution of prescription pharmaceutical products is subject to the Prescription Drug Marketing Act, or PDMA, which regulates the distribution of drugs and drug samples at the federal level and sets minimum standards for the registration and regulation of drug distributors by the states. Both the PDMA and state laws limit the distribution of prescription pharmaceutical product samples and impose requirements to ensure accountability in distribution. Manufacturers and other parties involved in the drug supply chain for prescription drug products must comply with product tracking and tracing requirements and for notifying the FDA of counterfeit, diverted, stolen and intentionally adulterated products or products that are otherwise unfit for distribution in the United States.
Abbreviated New Drug Applications for Generic Drugs
In 1984, with the passage of the Hatch-Waxman Amendments to the FDCA, Congress authorized the FDA to approve generic drugs that are the same as drugs previously approved by the FDA under the NDA provisions of the statute. To obtain approval of a generic drug, an applicant must submit an abbreviated new drug application, or ANDA, to the agency. In support of such applications, a generic manufacturer may rely on the nonclinical and clinical testing previously conducted for a drug product previously approved under an NDA, known as the reference"reference listed drug, or RLD.drug." To reference that information, however, the ANDA applicant must demonstrate, and the FDA must conclude, that the generic drug does, in fact, perform in the same way as the RLDreference listed drug it purports to copy.
Specifically, in order for an ANDA to be approved, the FDA must find that the generic version is identical to the RLDreference listed drug with respect to the active ingredients, the route of administration, the dosage form and the strength of the drug. At the same time, the FDA must also determine that the generic drug is “bioequivalent” to the innovator drug. Under the statute, a generic drug is bioequivalent to a RLDreference listed drug if “the rate and extent of absorption of the generic drug do not show a significant difference from the rate and extent of absorption of the reference listed drug. . . .”
Upon approval of an ANDA, the FDA indicates that the generic product is “therapeutically equivalent” to the RLDreference listed drug and it assigns a therapeutic equivalence rating to the approved generic drug in its publication “Approved Drug Products with Therapeutic Equivalence Evaluations,” also referred to as the “Orange Book.” Physicians and pharmacists consider the therapeutic equivalence rating to mean that a generic drug is fully substitutable for the RLD.reference listed drug. In addition, by operation of certain state laws and numerous health insurance programs, the FDA’s designation of a therapeutic equivalence rating often results in substitution of the generic drug without the knowledge or consent of either the prescribing physician or patient.
Under the Hatch-Waxman Amendments, the FDA may not approve an ANDA until any applicable period of non-patent exclusivity for the RLDreference listed drug has expired. The FDCA provides a period of five years of data exclusivity for new drug containing a new chemical entity. For the purposes of this provision, a new chemical entity is a drug that contains no active moiety that has been previously approved by the FDA in any other NDA. An active moiety is the molecule or ion responsible for the physiological or pharmacological action of the drug substance. In cases where such new chemical entity exclusivity has been granted, an ANDA may not be filed with the FDA until the expiration of five years unless the submission is accompanied
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by a Paragraph IV certification, in which case the applicant may submit its application four years following the original product approval.

The FDCA also provides for a period of three years of exclusivity if the NDA includes reports of one or more new clinical investigations, other than bioavailability or bioequivalence studies, that were conducted by or for the applicant and are essential to the approval of the application. This three-year exclusivity period often protects changes to a previously approved drug


product, such as a new dosage form, route of administration, combination or indication. Three year exclusivity would be available for a drug product that contains a previously approved active moiety, provided the statutory requirement for a new clinical investigation is satisfied. Unlike five year new chemical entity exclusivity, an award of three year exclusivity does not block the FDA from accepting ANDAs seeking approval for generic versions of the drug as of the date of approval of the original drug product.
Hatch-Waxman Patent Certification and the 30 Month Stay
NDA sponsors are required to list with the FDA each patent with claims that cover the applicant’s product or a method of using the product. Each of the patents listed by the NDA sponsor is published in the Orange Book. When an ANDA applicant files its application with the FDA, the applicant is required to certify to the FDA concerning any patents listed for the reference product in the Orange Book, except for patents covering methods of use for which the ANDA applicant is not seeking approval.
Specifically, the applicant must certify with respect to each patent that:
the required patent information has not been filed;
the listed patent has expired;
the listed patent has not expired, but will expire on a particular date and approval is sought after patent expiration; or
the listed patent is invalid, unenforceable or will not be infringed by the new product.
A certification that the new product will not infringe the already approved product’s listed patents or that such patents are invalid or unenforceable is called a Paragraph IV certification. If the applicant does not challenge the listed patents or indicate that it is not seeking approval of a patented method of use, the ANDA application will not be approved until all the listed patents claiming the referenced product have expired.
If the ANDA applicant has provided a Paragraph IV certification to the FDA, the applicant must also send notice of the Paragraph IV certification to the NDA and patent holders once the ANDA has been accepted for filing by the FDA. The NDA and patent holders may then initiate a patent infringement lawsuit in response to the notice of the Paragraph IV certification. The filing of a patent infringement lawsuit within 45 days after the receipt of a Paragraph IV certification automatically prevents the FDA from approving the ANDA until the earlier of 30 months, expiration of the patent, settlement of the lawsuit or a decision in the infringement case that is favorable to the ANDA applicant.
To the extent that the Section 505(b)(2) applicant is relying on studies conducted for an already approved product, the applicant is required to certify to the FDA concerning any patents listed for the approved product in the Orange Book to the same extent that an ANDA applicant would. As a result, approval of a 505(b)(2) NDA can be stalled until all the listed patents claiming the referenced product have expired, until any non-patent exclusivity, such as exclusivity for obtaining approval of a new chemical entity, listed in the Orange Book for the referenced product has expired, and, in the case of a Paragraph IV certification and subsequent patent infringement suit, until the earlierearliest of 30 months, settlement of the lawsuit or a decision in the infringement case that is favorable to the Section 505(b)(2) applicant.
Pediatric Studies and Exclusivity
Under the Pediatric Research Equity Act of 2003, as amended, an NDA or supplement thereto must contain data that are adequate to assess the safety and effectiveness of the drug product for the claimed indications in all relevant pediatric subpopulations and to support dosing and administration for each pediatric subpopulation for which the product is safe and effective. With enactment of the Food and Drug Administration Safety and Innovation Act, or FDASIA, in 2012, sponsorsSponsors must also submit pediatric study plans within sixty60 days of an end-of-phaseend of Phase 2 meeting, or as may be agreed between the sponsor and the FDA. Those plans must contain an outline of the proposed pediatric study or studies the applicant plans to conduct, including study objectives and design, any deferral or waiver requests and other information required by regulation. The applicant, the FDA and the FDA’s internal review committee must then review the information submitted, consult with each other and agree upon a final plan. The FDA or the applicant may request an amendment to the plan at any time.
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The FDA may, on its own initiative or at the request of the applicant, grant deferrals for submission of some or all pediatric data until after efficacy and safety has been established in adults, or full or partial waivers from the pediatric data requirements. Additional requirements and procedures relating to deferral requests and requests for extension of deferrals are contained in FDASIA. Unless otherwise required by regulation,Generally, the pediatric data requirements do not apply to products with orphan designation.


Pediatric exclusivity is another type of non-patent marketing exclusivity in the United States and, if granted, provides for the attachment of an additional six months of marketing protection to the term of any existing regulatory exclusivity, including the non-patent and orphan exclusivity. This six-month exclusivity may be granted if an NDA sponsor submits pediatric data that fairly respond to a written request from the FDA for such data. The data do not need to show the product to be effective in the pediatric population studied; rather, if the clinical trial is deemed to fairly respond to the FDA’s request, the additional protection is granted. If reports of requested pediatric studies are submitted to and accepted by the FDA within the statutory time limits, whatever statutory or regulatory periods of exclusivity or patent protection cover the product are extended by six months. This is not a patent term extension, but it effectively extends the regulatory period during which the FDA cannot accept or approve another application.
Patent Term Restoration and Extension
A patent claiming a new drug product may be eligible for a limited patent term extension under the Hatch-Waxman Amendments. Those Amendments permit a patent restoration of up to five years for patent term lost during product development and the FDA regulatory review. The restoration period granted is typically one-half the time between the effective date of an IND and the submission date of aan NDA, plus the time between the submission date of aan NDA and ultimate approval. Patent term restoration cannot be used to extend the remaining term of a patent past a total of 14 years from the product’s approval date. Only one patent applicable to an approved drug product is eligible for the extension, and the application for the extension must be submitted prior to the expiration of the patent in question. The U.S. Patent and Trademark OfficePTO reviews and approves the application for any patent term extension or restoration in consultation with the FDA.
Review and Approval of Drug Products in the European Union
In order to market any product outside of the United States, a company must also comply with numerous and varying regulatory requirements of other countries and jurisdictions regarding quality, safety and efficacy and governing, among other things, clinical trials, marketing authorization, commercial sales and distribution of its products. Whether or not it obtains FDA approval for a product, the company would need to obtain the necessary approvals by the comparable foreign regulatory authorities before it can commence clinical trials or marketing of the product in those countries or jurisdictions. The approval process ultimately varies between countries and jurisdictions and can involve additional product testing and additional administrative review periods. The time required to obtain approval in other countries and jurisdictions might differ from and be longer than that required to obtain FDA approval. Regulatory approval in one country or jurisdiction does not ensure regulatory approval in another, but a failure or delay in obtaining regulatory approval in one country or jurisdiction may negatively impact the regulatory process in others.
Pursuant to the European Clinical Trials Directive, a system for the approval of clinical trials in the European Union has been implemented through national legislation of the member states. Under this system, an applicant must obtain approval from the competent national authority of a European Union member state in which the clinical trial is to be conducted. Furthermore, the applicant may only start a clinical trial after a competent ethics committee has issued a favorable opinion. Clinical trial applications must be accompanied by an investigational medicinal product dossier with supporting information prescribed by the European Clinical Trials Directive and corresponding national laws of the member states and further detailed in applicable guidance documents.
To obtain marketing approval of a drug under European Union regulatory systems, an applicant must submit a marketing authorization application, or MAA, either under a centralized or decentralized procedure.
The centralized procedure provides for the grant of a single marketing authorization by the European Commission that is valid for all European Union member states. The centralized procedure is compulsory for specific products, including for medicines produced by certain biotechnological processes, products designated as orphan medicinal products, advanced therapy products and products with a new active substance indicated for the treatment of certain diseases. For products with a new active substance indicated for the treatment of other diseases and products that are highly innovative or for which a centralized process is in the interest of patients, the centralized procedure may be optional.

Under the centralized procedure, the Committee for Medicinal Products for Human Use, or the CHMP, established at the European Medicines Agency, or EMA, is responsible for issuing an Opinion following the initial assessment of an MAA. Under the centralized procedure, the maximum timeframe for the evaluation of an MAA is 210 days, excluding clock stops,
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when additional information or written or oral explanation is to be provided by the applicant in response to questions of the CHMP. Accelerated evaluation might be granted by the CHMP in exceptional cases, when a medicinal product is of major interest from the point of view of public health and in particular from the viewpoint of therapeutic innovation. In this


circumstance, the EMA ensures that the opinion of the CHMP is given within 150 days. Following a positive Opinionopinion by the CHMP, the final authorization is issued by the European Commission.
The decentralized procedure is available to applicants who wish to market a product in various European Union member states where such product has not received marketing approval in any European Union member states before. The decentralized procedure provides for approval by one or more other, or concerned, member states of an assessment of an application performed by one member state designated by the applicant, known as the reference member state. Under this procedure, an applicant submits an application based on identical dossiers and related materials to the reference member state and concerned member states. The reference member state prepares a draft assessment report and drafts of the related materials within 120 days after receipt of a valid application. Within 90 days ofafter receiving the reference member state’s assessment report and related materials, each concerned member state must decide whether to approve the assessment report and related materials.
If a member state cannot approve the assessment report and related materials on the grounds of potential serious risk to public health, the disputed points are subject to a dispute resolution mechanism and may eventually be referred to the European Commission, whose decision is binding on all member states.
Data and Market Exclusivity in the European Union
In the European Union, new chemical entities qualify for eight years of data exclusivity upon marketing authorization and an additional two years of market exclusivity. This data exclusivity, if granted, prevents regulatory authorities in the European Union from referencing the innovator’s data to assess a generic (abbreviated) application for eight years, after which generic marketing authorization can be submitted, and the innovator’s data may be referenced, but not approved for two years. The overall ten-year period will be extended to a maximum of eleven years if, during the first eight years of those ten years, the marketing authorization holder obtains an authorization for one or more new therapeutic indications which, during the scientific evaluation prior to their authorization, are held to bring a significant clinical benefit in comparison with existing therapies. Even if a compound is considered to be a new chemical entity and the sponsor is able to gain the prescribed period of data exclusivity, another company nevertheless could also market another version of the drug if such company can complete a full MAA with a complete database of pharmaceutical test,tests, nonclinical tests and clinical trials and obtain marketing approval of its product.
Pharmaceutical Coverage, Pricing and Reimbursement
Significant uncertainty exists as to the coverage and reimbursement status of products approved by the FDA and other government authorities. Sales of products will depend, in part, on the extent to which third-party payors, including government health programs in the United States such as Medicare and Medicaid, commercial health insurers and managed care organizations, provide coverage and establish adequate reimbursement levels for such products. The process for determining whether a payor will provide coverage for a product may be separate from the process for setting the price or reimbursement rate that the payor will pay for the product once coverage is approved. Third-party payors are increasingly challenging the prices charged for medical products and services and imposing controls to manage costs. Third-party payors may limit coverage to specific products on an approved list, or formulary, which might not include all of the approved products for a particular indication. In order to secure coverage and reimbursement for any product that might be approved for sale, a company may need to conduct expensive pharmacoeconomic studies in order to demonstrate the medical necessity and cost-effectiveness of the product, in addition to the costs required to obtain FDA or other comparable regulatory approvals. A payor’s decision to provide coverage for a drug product does not imply that an adequate reimbursement rate will be approved. Third-party reimbursement may not be sufficient to maintain price levels high enough to realize an appropriate return on our investment in product development. Factors considered by payors in determining reimbursement are based on whether the product is:
a covered benefit under its health plan;
safe, effective and medically necessary;
appropriate for the specific patient;
cost-effective; and
neither experimental nor investigational.
The containment of healthcare costs has also become a priority of federal, state and foreign governments, and the prices of drugs have been a focus in this effort. Governments have shown significant interest in implementing cost-containment
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programs, including price controls, restrictions on reimbursement and requirements for substitution of generic products.products and re-importation of products sold outside of the United States. Adoption of price controls and cost-containment measures, including importation of drugs into the United States from lower-cost countries, and adoption of more restrictive policies in jurisdictions with existing controls and measures, could adversely affect our net revenue and results.
Outside of the United States, ensuring adequate coverage and payment for products remains challenging. Pricing of prescription pharmaceuticals is subject to governmental control in many countries. Pricing negotiations with governmental authorities can extend well beyond the receipt of regulatory marketing approval for a product and may require us to conduct a clinical trial that compares the cost effectiveness of our product candidates or products to other available therapies. The conduct of such a clinical trial could be expensive and result in delays in our commercialization efforts.


As a result, the marketability of any product which receives regulatory approval for commercial sale may suffer if the government and third-party payors fail to provide adequate coverage and reimbursement. In addition, an increasing emphasis on managed care in the United States has increased and will continue to increase the pressure on drug pricing. Coverage policies, third-party reimbursement rates and drug pricing regulation may change at any time. In particular, the Patient Protection and Affordable Care Act, as amended by the Health Care and Education Affordability Reconciliation Act, or collectively the ACA, contains provisions that may reduce the profitability of drug products, including, for example, increased rebates for drugs sold to Medicaid programs, extension of Medicaid rebates to Medicaid managed care plans, mandatory discounts for certain Medicare Part D beneficiaries and annual fees based on pharmaceutical companies’ share of sales to federal health carehealthcare programs. Even if favorable coverage and reimbursement status is attained for one or more products that receive regulatory approval, less favorable coverage policies and reimbursement rates may be implemented in the future.
In the European Union, pricing and reimbursement schemes vary widely from country to country. Some countries provide that drug products may be marketed only after a reimbursement price has been agreed. Some countries may require the completion of additional studies that compare the cost-effectiveness of a particular product candidate to currently available therapies. For example, the European Union provides options for its member states to restrict the range of drug products for which their national health insurance systems provide reimbursement and to control the prices of medicinal products for human use. European Union member states may approve a specific price for a drug product or it may instead adopt a system of direct or indirect controls on the profitability of the company placing the drug product on the market. Other member states allow companies to fix their own prices for drug products, but monitor and control company profits. The downward pressure on health carehealthcare costs in general, particularly prescription drugs, has become intense. As a result, increasingly high barriers are being erected to the entry of new products. In addition, in some countries, cross-border imports from low-priced markets exert competitive pressure that may reduce pricing within a country. Any country that has price controls or reimbursement limitations for drug products may not allow favorable reimbursement and pricing arrangements for any of our products.
Healthcare Reform
In the United States and some foreign jurisdictions, there have been, and likely will continue to be, a number of legislative and regulatory changes and proposed changes regarding the healthcare system directed at broadening the availability of healthcare, improving the quality of healthcare and containing or lowering the cost of healthcare. For example, in March 2010, the United States Congress enacted the ACA, which, among other things, included changes to the coverage and payment for products under government health care programs. The ACA included provisions of importance to our potential product candidate that:
created an annual, nondeductible fee on any entity that manufactures or imports specified branded prescription drugs and biologic products, apportioned among these entities according to their market share in certain government healthcare programs;
expanded eligibility criteria for Medicaid programs by, among other things, allowing states to offer Medicaid coverage to certain individuals with income at or below 133% of the federal poverty level, thereby potentially increasing a manufacturer’s Medicaid rebate liability;
expanded manufacturers’ rebate liability under the Medicaid Drug Rebate Program by increasing the minimum rebate for both branded and generic drugs and revising the definition of “average manufacturer price” for calculating and reporting Medicaid drug rebates on outpatient prescription drug prices;
addressed a new methodology by which rebates owed by manufacturers under the Medicaid Drug Rebate Program are calculated for drugs that are inhaled, infused, instilled, implanted or injected;
expanded the types of entities eligible for the 340B drug discount program;
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establishment of a Center for Medicare & Medicaid Innovation at the Centers for Medicare & Medicaid Services, or CMS, to test innovative payment and service delivery models to lower Medicare and Medicaid spending, potentially including prescription drug spending;
established the Medicare Part D coverage gap discount program by requiring manufacturers to provide point-of-sale-discounts off the negotiated price of applicable brand drugs to eligible beneficiaries during their coverage gap period as a condition for the manufacturers’ outpatient drugs to be covered under Medicare Part D; and
created a new Patient-Centered Outcomes Research Institute to oversee, identify priorities in and conduct comparative clinical effectiveness research, along with funding for such research.
There remain numerous judicial, administrative, executive and legislative challenges to certain aspects of the ACA. For example, various portions of the ACA are currently undergoing legal and constitutional challenges in the Supreme Court, and the former Trump Administration issued various Executive Orders that eliminated cost sharing subsidies and various provisions that would impose a fiscal burden on states or a cost, fee, tax, penalty or regulatory burden on individuals, healthcare providers, health insurers or manufacturers of pharmaceuticals or biologics. Concurrently, Congress has considered legislation that would repeal or repeal and replace all or part of the ACA. While Congress has not passed comprehensive repeal legislation, it has enacted laws that modify certain provisions of the ACA such as removing penalties, effective as of January 1, 2019, for not complying with the ACA’s individual mandate to carry health insurance, eliminating the implementation of certain of the ACA’s mandated fees and increasing the point-of-sale discount that is owed by pharmaceutical manufacturers who participate in Medicare Part D. On December 14, 2018, a Texas U.S. District Court Judge ruled that the ACA is unconstitutional in its entirety because the “individual mandate” was repealed by Congress as part of the Tax Cuts and Jobs Act. Additionally, on December 18, 2019, the U.S. Court of Appeals for the 5th Circuit upheld the District Court ruling that the individual mandate was unconstitutional and remanded the case back to the District Court to determine whether the remaining provisions of the ACA are invalid as well. On June 17, 2021, the Supreme Court dismissed the most recent judicial challenge to the ACA without specifically ruling on the constitutionality of the ACA. Prior to the Supreme Court's decision, President Biden issued an Executive Order to initiate a special enrollment period from February 15, 2021 through August 15, 2021 for purposes of obtaining health insurance coverage through the ACA marketplace. The Executive Order also instructed certain governmental agencies to review and reconsider their existing policies and rules that limit access to healthcare, including among others, reexamining Medicaid demonstration projects and waiver programs that include work requirements, and policies that create unnecessary barriers to obtaining access to health insurance coverage through Medicaid or the ACA. It is unclear how other healthcare reform measures of the Biden administrations or other efforts, if any, to challenge repeal or replace the ACA will impact our business.
Other legislative changes have been proposed and adopted in the United States since the ACA was enacted. In August 2011, the Budget Control Act of 2011, among other things, included aggregate reductions of Medicare payments to providers of 2% per fiscal year. These reductions went into effect on April 1, 2013 and, due to subsequent legislative amendments to the statute, will remain in effect through 2030, with the exception of a temporary suspension from May 1, 2020 through March 31, 2022 due to the COVID-19 pandemic. Following the temporary suspension, a 1% payment reduction will occur beginning April 1, 2022 through June 30, 2022, and the 2% payment reduction will resume on July 1, 2022. In January 2013, the American Taxpayer Relief Act of 2012 was signed into law, which, among other things, further reduced Medicare payments to several providers, including hospitals, imaging centers and cancer treatment centers and increased the statute of limitations period for the government to recover overpayments to providers from three to five years. Further, the 2020 federal spending package permanently eliminated, effective January 1, 2020, the ACA-mandated “Cadillac” tax on high-cost employer-sponsored health coverage and medical device tax and, effective January 1, 2021, also eliminated the health insurer tax.
Moreover, payment methodologies may be subject to changes in healthcare legislation and regulatory initiatives. For example, CMS may develop new payment and delivery models, such as bundled payment models. In addition, recently there has been heightened governmental scrutiny over the manner in which manufacturers set prices for their commercial products, which has resulted in several Congressional inquiries and proposed and enacted state and federal legislation designed to, among other things, bring more transparency to product pricing, review the relationship between pricing and manufacturer patient programs and reform government program reimbursement methodologies for pharmaceutical products. For example, at the federal level, President Biden signed an Executive Order on July 9, 2021 affirming the administration’s policy to (i) support legislative reforms that would lower the prices of prescription drug and biologics, including by allowing Medicare to negotiate drug prices, by imposing inflation caps and by supporting the development and market entry of lower-cost generic drugs and biosimilars and (ii) support the enactment of a public health insurance option. Among other things, the Executive Order also directs the U.S. Department of Health and Human Services, or HHS, to provide a report on actions to combat excessive pricing of prescription drugs, enhance the domestic drug supply chain, reduce the price that the federal government pays for drugs and address price gouging in the industry; and directs the FDA to work with states and Indian Tribes that propose to develop section 804 Importation Programs in accordance with the Medicare Prescription Drug, Improvement, and Modernization Act of 2003, and
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the FDA’s implementing regulations. FDA released such implementing regulations on September 24, 2020, which went into effect on November 30, 2020, providing guidance for states to build and submit importation plans for drugs from Canada. On September 25, 2020, CMS stated drugs imported by states under this rule will not be eligible for federal rebates under Section 1927 of the Social Security Act and manufacturers would not report these drugs for “best price” or Average Manufacturer Price purposes. Since these drugs are not considered covered outpatient drugs, CMS further stated it will not publish a National Average Drug Acquisition Cost for these drugs. If implemented, importation of drugs from Canada may materially and adversely affect the price we receive for any of our product candidates. Further, on November 20, 2020, CMS issued an Interim Final Rule implementing the Most Favored Nation Model under which Medicare Part B reimbursement rates would have been be calculated for certain drugs and biologicals based on the lowest price drug manufacturers receive in Organization for Economic Cooperation and Development countries with a similar gross domestic product per capita. However, on December 29, 2021 CMS rescinded the Most Favored Nations rule. Additionally, on November 30, 2020, HHS published a regulation removing safe harbor protection for price reductions from pharmaceutical manufacturers to plan sponsors under Part D, either directly or through pharmacy benefit managers, unless the price reduction is required by law. The rule also creates a new safe harbor for price reductions reflected at the point-of-sale, as well as a safe harbor for certain fixed fee arrangements between pharmacy benefit managers and manufacturers. Pursuant to court order, the removal and addition of the aforementioned safe harbors were delayed and recent legislation imposed a moratorium on implementation of the rule until January 1, 2026. Although a number of these and other proposed measures may require authorization through additional legislation to become effective, and the Biden administration may reverse or otherwise change these measures, both the Biden administration and Congress have indicated that they will continue to seek new legislative measures to control drug costs.
Individual states in the United States have also increasingly passed legislation and implemented regulations designed to control pharmaceutical product pricing, including price or patient reimbursement constraints, discounts, restrictions on certain product access and marketing cost disclosure and transparency measures and, in some cases, designed to encourage importation from other countries and bulk purchasing. For example, we may face competition in the United States for our product candidates, if approved, from therapies sourced from foreign countries that have placed price controls on pharmaceutical products. In the United States, the FDA issued a final guidance document outlining a pathway for manufacturers to obtain an additional National Drug Code for an FDA-approved drug that was originally intended to be marketed in a foreign country and that was authorized for sale in that foreign country. The market implications of the final guidance are unknown at this time. Proponents of drug reimportation may attempt to pass legislation that would directly allow reimportation under certain circumstances. Legislation or regulations allowing the reimportation of drugs, if enacted, could decrease the price we receive for any products that we may develop and adversely affect our future revenues and prospects for profitability. Further, legally mandated price controls on payment amounts by third-party payors or other restrictions could adversely affect our business prospects, financial condition and results of operations. In addition, regional healthcare authorities and individual hospitals are increasingly using bidding procedures to determine what pharmaceutical products and which suppliers will be included in their prescription drug and other healthcare programs. This could reduce the ultimate demand for our product candidates or put pressure on our product pricing.
In addition, it is possible that additional governmental action is taken to address the COVID-19 pandemic. For example, on April 18, 2020, CMS announced that qualified health plan issuers under the ACA may suspend activities related to the collection and reporting of quality data that would have otherwise been reported between May and June 2020 given the challenges healthcare providers are facing responding to the COVID-19 pandemic.
On May 30, 2018, the Right to Try Act was signed into law. The law, among other things, provides a federal framework for certain patients to access certain investigational new drug products that have completed a Phase 1 clinical trial and that are undergoing investigation for FDA approval. Under certain circumstances, eligible patients can seek treatment without enrolling in clinical trials and without obtaining FDA permission under the FDA expanded access program. There is no obligation for a drug manufacturer to make its drug products available to eligible patients as a result of the Right to Try Act.
Outside the United States, ensuring coverage and adequate payment for a product also involves challenges. Pricing of prescription pharmaceuticals is subject to government control in many countries. For example, in Canada, price control legislation for patented medicines is currently undergoing significant change that may have significant effects on profitability for companies selling products in Canada. Pricing negotiations with government authorities can extend well beyond the receipt of regulatory approval for a product and may require a clinical trial that compares the cost-effectiveness of a product to other available therapies. The conduct of such a clinical trial could be expensive and result in delays in commercialization.
Healthcare Law and Regulation
Healthcare providers, physicians and third-party payors will play a primary role in the recommendation and prescription of drug products that are granted marketing approval. Arrangements with third-party payors and customers are subject to broadly applicable fraud and abuse and other healthcare laws and regulations that may constrain the business or financial arrangements
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and relationships through which we market, sell and distribute our products for which we obtain marketing approval. Restrictions under applicable federal and state healthcare laws and regulations, include the following:
the federal healthcare Anti-Kickback Statute prohibits, among other things, persons and entities from knowingly and willfully soliciting, offering, receiving or providing remuneration, directly or indirectly, in cash or in kind, to induce or reward, or in return for, either the referral of an individual for, or the purchase, order or recommendation or arranging of, any good or service, for which payment may be made, in whole or in part, under a federal healthcare program such as Medicare and Medicaid;

the federal civil and criminal false claims laws, including the False Claims Act, which imposes civil monetary penalties, and provides for civil whistleblower or qui tam actions, against individuals or entities for, among other things, knowingly presenting, or causing to be presented, to the federal government, claims for payment that are false or fraudulent or making a false statement to avoid, decrease or conceal an obligation to pay money to the federal government;

the federal Health Insurance Portability and Accountability Act of 1996, or HIPAA, which imposes federal criminal and civil liability for among other things, knowingly and willingly executing or attempting to execute, a scheme to defraud any healthcare benefit program or knowingly and willfully falsifying, concealing or covering up a material fact or making any materially false statements relating tostatement in connection with the delivery of or payment for healthcare matters;benefits, items or services;

HIPAA, as amended by the Health Information Technology for Economic and Clinical Health Act and its implementing regulations, also imposes obligations, including mandatory contractual terms and technical safeguards, with respect to safeguardingmaintaining the privacy, security and transmission of individually identifiable health information;

the federal false statements statute prohibits knowingly and willfully falsifying, concealing or covering up a material fact or making any materially false statement in connection with the delivery of or payment for healthcare benefits, items or services;

the federal anti-inducement law, which prohibits, among other things, the offering or giving of remuneration, which includes, without limitation, any transfer of items or services for free or for less than fair market value (with limited exceptions), to a Medicare or Medicaid beneficiary that the person knows or should know is likely to influence the beneficiary’s selection of a particular supplier of items or services reimbursable by a federal or state governmental program;
the federal consumer protection and unfair competition laws, which broadly regulate marketplace activities and activities that potentially harm consumers;
the federal government price reporting laws, which require us to calculate and report complex pricing metrics in an accurate and timely manner to government programs;
the federal transparency requirements under the Patient Protection and Affordable Care Act, as amended by the Health Care and Education Reconciliation Act, or the Affordable Care Act,ACA, which requires certain manufacturers of covered drugs devices, biologics and medical supplies to report to the Department of Health and Human Services information related to payments and other transfers of value to physicians (currently defined to include doctors, dentists, optometrists, podiatrists and chiropractors), other healthcare providers and teaching hospitals, andas well as physician ownership and investment interests;interests. Effective January 1, 2022, these reporting obligations extend to include transfers of value made to certain non-physician providers such as physician assistants and nurse practitioners; and



analogous state and foreign laws and regulations, such as state anti-kickback and false claims laws, which may apply to healthcare items or services that are reimbursed by non-governmental third-party payors, including private insurers.
Some state laws require pharmaceutical companies to comply with the pharmaceutical industry’s voluntary compliance guidelines and the relevant compliance guidance promulgated by the federal government in addition to requiring drug manufacturers to report information related to payments to physicians and other health carehealthcare providers or marketing expenditures. State and foreign laws also govern the privacy and security of health information in some circumstances, many of which differ from each other in significant ways and often are not preempted by HIPAA, thus complicating compliance efforts.
RegulationIn addition, pharmaceutical manufacturers may also be subject to federal and state consumer protection and unfair competition laws and regulations, which broadly regulate marketplace activities and that potentially harm consumers.
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The distribution of Deuterium Oxidedrugs and biological products is subject to additional requirements and regulations, including extensive record-keeping, licensing, storage and security requirements intended to prevent the unauthorized sale of pharmaceutical products.
We believeThe full scope and enforcement of each of these laws is uncertain and subject to rapid change in the current environment of healthcare reform. Federal and state enforcement bodies have continued to increase their scrutiny of interactions between healthcare companies and healthcare providers, which has led to a number of investigations, prosecutions, convictions and settlements in the healthcare industry. It is possible that allgovernmental authorities will conclude that our business practices do not comply with current or future statutes, regulations or case law involving applicable fraud and abuse or other healthcare laws and regulations. If our operations are found to be in violation of any of the deuteriumlaws described above or any other governmental regulations that we use in manufacturing our product candidates is currently derived, directly or indirectly, from deuterium oxide. For most of our deuterium supply we rely on bulk supplies of deuterium oxide, which we currently source from multiple suppliers,apply to us, including two located in North America, one of which is located in the United States. In order to internationally transport any deuterium oxide that we purchase from foreign suppliers, we, or our U.S. supplier, may be required to obtain an export license from the country of originenvironmental, health and safety laws and regulations, we may be requiredsubject to obtain an International Import Certificatepenalties, including administrative, civil and criminal penalties, imprisonment, exclusion from participation in government healthcare programs such as Medicare and Medicaid, damages, fines and the countrycurtailment or restructuring of destination. We are also generally requiredour operations, any of which could adversely affect our ability to obtain an export license from the Nuclear Regulatory Commission before shipping deuterium oxide from the United States to any contract manufacturer in another country. Each of these documents specifies the maximum amount of deuterium oxide that we, oroperate our suppliers, are permitted to either import or export. We have obtained a license from the Nuclear Regulatory Commission, or NRC, for the export of 20,000 kilograms of heavy water over the life of the license, which is valid until January 2019. We have obtained an additional export license from the NRC for the export of 20,000 kilograms of heavy water over the life of the license, which is valid until March 2020. In addition, in order to obtain additional supplies of deuterium oxide from one of the foreign suppliers from which we have previously purchased deuterium oxide, the supplier will be required to obtain an additional export license from the country of origin and, as part of the export license application process, we may be required to obtain a U.S. import certificate. While webusiness and our suppliers have obtained similar licenses and certificates in the past, we or our suppliers may not be able to obtain them in the future in a timely manner or at all. We have not obtained an export license from the country in which our potential future foreign supplier is located. In addition, if anyresults of our product candidates is approved by the FDA, then the FDA will also have regulatory jurisdiction over the manufacture and use of deuterium oxide in such product.operations.
EMPLOYEESHUMAN CAPITAL RESOURCES
As of December 31, 2017,2021, we had 64 employees 41on a full-time or part-time basis, 42 of whom were primarily engaged in research and product development activities. A total of 1730 employees havehold Ph.D., master’s or other post-graduate degrees. In addition, we retain expert consultants on an ad-hoc basis as required in connection with our development programs.
Our key human capital management objectives are to identify, recruit, integrate, retain and motivate our new and existing employees. We are committed to fostering an environment where all employees can grow and thrive. A diverse workforce results in a broader range of perspectives, helping drive our commitment to growth. We believe that our compensation and benefit programs are competitive and appropriately designed to attract and retain qualified talent. To create and maintain a successful work environment, we offer an annual base salary, incentive bonuses and a comprehensive package of additional benefits that support the physical and mental health and wellness of all of our employees and their families. We also grant equity awards to attract and promote employee retention and to allow for employees to share in our performance. None of our employees are represented by a labor union, and we believe that our relations with our employees are good.
FACILITIES
Our offices are located in Lexington, Massachusetts, consisting ofWe lease approximately 50,00056,000 square feet of leased office and laboratory space.space at our headquarters in Lexington, Massachusetts. The term of the lease expires in September 2018. In the third quarter of 2018, Concert expects to relocate its offices to a new location in Lexington, Massachusetts, consisting of approximately 55,500 square feet of leased office and laboratory space. The term of the new lease expires inon January 1, 2029.

RESEARCH AND DEVELOPMENT
We have dedicated a significant portion of our resources to our efforts to develop our pipeline and product candidates. We incurred research and development expenses of $30.2 million, $37.0$87.6 million and $28.9$61.6 million during the years ended December 31, 2017, 20162021 and 2015,2020, respectively. We anticipate that a significant portion of our operating expenses in future periods will continue to be related to research and development as we continue to advance our product candidates through clinical development.
LEGAL PROCEEDINGS
We are not currently a party to any material legal proceedings.



AVAILABLE INFORMATION
We file reports and other information with the Securities and Exchange Commission, or SEC, as required by the Securities Exchange Act of 1934, as amended, which we refer to as theor Exchange Act. You can find, copy and inspect information we file at the SEC’s public reference room, which is located at 100 F Street, N.E., Room 1580, Washington, DC 20549. Please call the SEC at 1-800-SEC-0330 for more information about the operation of the SEC’s public reference room. You can review our electronically filed reports and other information that we file with the SEC on the SEC’s web site at http://www.sec.gov.
We were incorporated under the laws of the State of Delaware on April 12, 2006 as Concert Pharmaceuticals, Inc. Our principal executive offices are located at 9965 Hayden Avenue, Suite 500,3000N, Lexington, Massachusetts 02421, and our telephone number is (781) 860-0045. Our Internet website is http://www.concertpharma.com. We make available free of charge through our website our Annual Report on Form 10-K, quarterly reportsQuarterly Reports on Form 10-Q, current reportsCurrent Reports on Form 8-K and amendments to those reports filed or furnished pursuant to Sections 13(a) and 15(d) of the Exchange Act. We make these reports available through our website as soon as reasonably practicable after we electronically file such reports with, or furnish such reports to, the SEC. In addition, we regularly use our website to post information regarding our business, product development programs and governance, and we encourage investors to use our website, particularly the information in the section entitled “Investors,” as a source of information about us.
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The foregoing references to our website are not intended to, nor shall they be deemed to, incorporate information on our website into this Annual Report on Form 10-K by reference.

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Item 1A.Risk Factors.
Item 1A.Risk Factors.
Our business is subject to numerous risks. The following important factors, among others, could cause our actual results to differ materially from those expressed in forward-looking statements made by us or on our behalf in this Annual Report on Form 10-K and other filings with the Securities and Exchange Commission, or the SEC, press releases, communications with investors and oral statements. Actual future results may differ materially from those anticipated in our forward-looking statements. We undertake no obligation to update any forward-looking statements, whether as a result of new information, future events or otherwise.

Risks Related to the COVID-19 Pandemic

Our business may be adversely affected by the ongoing COVID-19 pandemic.
RISKS RELATED TO OUR FINANCIAL POSITION AND NEED FOR ADDITIONAL CAPITALOur business could be adversely affected by public health emergencies, health epidemics or pandemics in regions where we have concentrations of clinical trial sites or other business activities and could cause significant disruption in the operations of clinical research organizations and contract manufacturers upon whom we rely. For example, the COVID-19 pandemic continues to affect most regions of the world.

As a result of the COVID-19 pandemic, we may experience disruptions that could severely impact our business, clinical trials and supply chain, including:
We believe that the COVID-19 pandemic has had, and will continue to have, an impact on our clinical trials, including our Phase 3 clinical trials and open label, long-term extension studies of CTP-543 for alopecia areata. Due to changes to study site operations and local travel restrictions, in some cases, these impacts include the potential need for remote assessments and delivery of study medication directly to patients. Some patients may choose to withdraw from our studies or we may choose to, or be required to, pause enrollment or patient dosing in order to preserve health resources and protect trial participants. As a result, the timelines to complete our clinical trials may be delayed.
We believe that the COVID-19 pandemic may also have an impact on the clinical trials of our collaborators. For instance, AVP-786 is being developed under a collaboration with Avanir. Screening and enrollment in ongoing AVP-786 clinical trials were temporarily paused in 2020 due to restrictions associated with the COVID-19 pandemic, but have since resumed. However, even though screening and enrollment have resumed, we believe that the COVID-19 pandemic will continue to have an impact on these clinical trials. As a result, our collaborators’ timelines to complete clinical trials may be delayed.
We currently rely on third parties to, among other things, manufacture raw materials, manufacture our product candidates for our clinical trials, ship our product candidates to study sites, perform quality testing and supply other goods and services to run our business. If any such third party in our supply chain is adversely impacted by restrictions resulting from the COVID-19 pandemic, including staffing shortages, production slowdowns or disruptions in delivery systems, our supply chain may be disrupted, limiting our ability to manufacture our product candidates for our clinical trials and conduct our research and development operations.
Health regulatory agencies globally have experienced disruptions in their operations as a result of the COVID-19 pandemic. The FDA and comparable foreign regulatory agencies may have had slower response times or been under resourced, and travel restrictions are impacting the ability of the FDA and other agencies to conduct domestic and international facility inspections.
Since March 2020 when foreign and domestic inspections of facilities were largely placed on hold, the FDA has been working to resume routine surveillance, bioresearch monitoring and pre-approval inspections on a prioritized basis. Since April 2021, the FDA has conducted limited inspections and employed remote interactive evaluations, using risk management methods, to meet user fee commitments and goal dates. In February 2022, the FDA announced that it plans to resume domestic inspections; however, ongoing travel restrictions and other uncertainties may continue to impact oversight operations both domestic and abroad, and it is unclear when standard operational levels will resume. The FDA is continuing to complete mission-critical work, prioritize other higher-tiered inspectional needs (e.g., for-cause inspections) and carry out surveillance inspections using risk-based approaches for evaluating public health. Should the FDA determine that an inspection is necessary for approval and an inspection cannot be completed during the review cycle due to restrictions on travel, and the FDA does not determine a remote interactive evaluation to be adequate, the agency has stated that it generally intends to issue, depending on the circumstances, a complete response letter or defer action on the application until an inspection can be completed. During the COVID-19 pandemic, a
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number of companies announced receipt of complete response letters due to the FDA’s inability to complete required inspections for their applications. Regulatory authorities outside the United States may adopt similar restrictions or other policy measures in response to the COVID-19 pandemic and may experience delays in their regulatory activities. Additionally, as of May 26, 2021, the FDA noted that it is continuing to ensure timely reviews of applications for medical products during the COVID-19 pandemic in line with its user fee performance goals and conducting mission critical domestic and foreign inspections to ensure compliance of manufacturing facilities with FDA quality standards. However, the FDA may not be able to continue its current pace, and approval timelines could be extended, including where a pre-approval inspection or an inspection of clinical sites is required and, due to the COVID-19 pandemic and travel restrictions, the FDA is unable to complete such required inspections during the review period. Any elongation or de-prioritization of our clinical trials or delay in regulatory review resulting from such disruptions could materially affect the development of our product candidates.
The COVID-19 pandemic continues to evolve. The ultimate impact of the COVID-19 pandemic on our business operations is highly uncertain and subject to change and will depend on future developments, which cannot be accurately predicted, including the duration of the pandemic, additional or modified government actions, new information and the actions taken to contain or address its impact in the short and long term, among others. We do not yet know the full extent of potential delays or impacts on our business, our clinical trials, healthcare systems or the global economy. We will continue to monitor the situation closely.
Risks Related to Our Financial Position and Need for Additional Capital
We have incurred significant losses since inception, expect to incur losses for at least the next several years and may never sustain profitability.
As of December 31, 2017,2021, we had an accumulated deficit of $76.2$349.5 million. We have not generatedgenerated any revenues from product sales and have financed our operations to date primarily through the public offering and private placement of our common stock, private placements of our preferred stock,equity, debt financings andfinancing, funding from collaborations aand patent assignment agreement,assignments, asset sales and an asset sale.other arrangements. We have not completed development of any product candidate and have devoted substantially all of our financial resources and efforts to research and development, including nonclinical studies and our clinical development programs.development. We expect to continue to incur significant expenses and increasing operating losses for at least the next several years. Our net losses may fluctuate significantly from quarter to quarter and year to year. Net losses and negative cash flows have had, and will continue to have, an adverse effect on our stockholders’ equity and working capital.
We anticipate that our expenses will increase substantially if and as we:
continue to develop and conduct nonclinical studies and clinical trials with respect to our product candidates;
seek to identify additional product candidates;
in-license or acquire additional product candidates;
seek marketing approvals for our product candidates that successfully complete clinical trials;
establish sales, marketing, distribution and other commercial infrastructure in the future to commercialize various products for which we may obtain marketing approval;
require the manufacture of larger quantities of product candidates for clinical development and potentially commercialization;
maintain, expand and protect our intellectual property portfolio;
incur delays to the initiation or completion of our clinical trials due to the COVID-19 pandemic;
incur any disruptions or delays to the supply of our product candidates due to the COVID-19 pandemic;
hire additional personnel;
add equipment and physical infrastructure to support our research and development; and
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continue to implement the infrastructure necessary to support our product development and help us comply with our obligations as a public company.
Our ability to become and remain profitable depends on our ability to generate revenue. We do not expect to generate significant revenue unless and until we are, or one of our collaborators is, able to successfully commercialize one or more of our product candidates. ThisDoing so will require success in a range of challenging activities, including completing clinical trials of our product candidates, obtaining marketing approval for these product candidates, manufacturing, marketing and selling those products for which we, or our collaborators, may obtain marketing approval, satisfying any post-marketing requirements and obtaining reimbursement for our products from private insurance or government payors. We, and our collaborators, may never succeed in these activities and, even if we do, or one of our collaborators does, we may never generate revenues that are large enough for us to achieve profitability. Even if we do achieve profitability, we may not be able to sustain or increase profitability on a quarterly or annual basis. Our failure to become and remain profitable would decrease the value of our Companycompany and could impair our ability to raise capital, expand our business, maintain our research and development efforts, diversify our pipeline of product candidates or continue our operations. A decline in the value of our Companycompany could cause our stockholders to lose all or part of their investments in us.
We have a limitedBased on our current operating history and no history of commercializing pharmaceutical products, which may make it difficult to evaluate the prospects forplan, there is substantial doubt regarding our future viability.
We began operations in April 2006. Our operations to date have been limited to financing and staffing our Company, developing our technology and product candidates and establishing collaborations. We have not yet demonstrated an ability to successfully conduct an international multi-center clinical trial, conductcontinue as a large-scale pivotal clinical trial, obtain marketinggoing concern.


approvals, manufacture productBased on our current operating plan, we believe that our cash and cash equivalents as of December 31, 2021 will enable us to fund our operating expenses and capital expenditure requirements into the fourth quarter of 2022. However, without significant changes to our current operating plan or raising additional capital, there is substantial doubt regarding our ability to continue as a commercial scale or arrangegoing concern for a third party to do soperiod of at least twelve months from the issuance date of this Annual Report on our behalf, or conduct sales and marketing activities necessary for successful product commercialization. Consequently, predictions about our future success or viability may not be as accurate as they could be if we had a longer operating history or a history of successfully developing and commercializing pharmaceutical products.Form 10-K.
We will need substantial additional funding. If we are unable to raise capital when needed, we could be forced to delay, reduce or eliminate our product development programs or commercialization efforts.
Developing pharmaceutical products, including conducting nonclinical studies and clinical trials, is a very time-consuming, expensive and uncertain process that takes years to complete. We expect our expenses to increase in connection with our ongoing activities, particularly as we initiate new clinical trials of, initiate new research and nonclinical development efforts for and seek marketing approval for our product candidates, or if we in-license or acquire product candidates. In addition, if we obtain marketing approval for any of our product candidates, we may incur significant commercialization expenses related to product sales, marketing, manufacturing and distribution to the extent that such sales, marketing and distribution are not the responsibility of one of our collaborators. In particular, the costs that we may be required to incur for the manufacture of any product candidate that receives marketing approval may be substantial. Manufacturing a deuterated drug at commercial scale may require specialized facilities, processes and materials. Furthermore, we will continue to incur costs associated with operating as a public company. Accordingly, we will need to obtain substantial additional funding in connection with our continuing operations. If we are unable to raise capital when needed or on attractiveacceptable terms, we may be forced to delay, reduce or eliminate our research and development programs or any future commercialization efforts.
In any event, our existing cash and cash equivalents and investments will not be sufficient to fund all of the efforts that we plan to undertake or to fund the completion of development of any of our product candidates. Accordingly, we will be required to obtain further funding in the future through public or privatea combination of equity offerings, debt financings, collaborationscollaboration and licensing arrangements orand other sources. Adequate additional financing may not be available to us on acceptable terms, or at all. Market volatility resulting from various factors could also adversely impact our ability to access capital as and when needed. Our failure to raise capital when needed would have a negative impact on our financial condition and our ability to pursue our business strategy.
WeBased on our current operating plan, we believe that our existing cash and cash equivalents and investments as of December 31, 20172021 will enable us to fund our operating expenses and capital expenditure requirements into 2021.the fourth quarter of 2022. Our estimate as to how long we expect our cash and cash equivalents and investments to be able to continue to fund our operations is based on assumptions that may prove to be wrong, and we could use our available capital resources sooner than we currently expect. Changing circumstances could cause us to consume capital significantly faster than we currently anticipate, and we may need to spend more money than currently expected because of circumstances beyond our control. Our future funding requirements, both short-term and long-term, will depend on many factors, including:

the progress, timing, costs and results of clinical trials of, and research and nonclinical development efforts for, our product candidates and potential product candidates, including current and future clinical trials;trials, including on account of the COVID-19 pandemic and its impact on our clinical trial sites;
our current collaboration agreements and achievement of milestones under these agreements;
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our ability to enter into and the terms and timing of any additional collaborations, licensing, product acquisition or other arrangements that we may establish;
the number of product candidates that we pursue and their development requirements;
the outcome, timing and costs of seeking regulatorymarketing approvals;
our headcount growth and associated costs as we expand our research and development and establish a commercial infrastructure;
the costs of preparing, filing and prosecuting patent applications, maintaining and protecting our intellectual property rights and defending against intellectual property related claims;
potential litigation costs; and
the costs of operating as a public company.
Raising additional capital may cause dilution to our stockholders or require us to relinquish rights to our technologies or product candidates.
Until such time, if ever, as we can generate substantial product revenues, we expect to finance our cash needs through a combination of public or private equity offerings, debt financings, additional collaborationscollaboration and licensing arrangements and other sources. We do not have any committed external source of funds, other than cash held in escrow pursuant to the Vertex asset purchase agreement and potential milestone payments under the asset purchase agreement with Vertex, as well as potential milestone payments and royalties under our existing license agreements, with Avanir, Celgene, and Jazz Pharmaceuticals, each of which is subject to the achievement of development, regulatory and/or sales-based milestones with respect to our product candidates. To the extent that we raise additional capital through the sale of common stock, convertible securities or other equity securities, the ownership interests of our stockholders may be materially diluted, and the terms of these securities could


include liquidation or other preferences and anti-dilution protections that could adversely affect the rights of our stockholders. For example, in November 2021, we issued to a select group of institutional investors, or the Investors, (i) 13,997 shares of Series X1 Preferred Stock, (ii) 2,253,000 shares of common stock, (iii) warrants to purchase up to 16,250 shares of Series X1 Preferred Stock and (iv) a portion of our right to receive potential future AVP-786 royalties under the Avanir Agreement. In addition, debt financing, if available, would result in increased fixed payment obligations and may involve agreements that include restrictive covenants that limit our ability to take specific actions, such as incurring additional debt, making capital expenditures or declaring dividends, that could adversely impact our ability to conduct our business.
If we raise additional funds through collaborations or marketing, distribution or licensing arrangements with third parties, we may have to relinquish valuable rights to our technologies, future revenue streams or product candidates, or grant licenses on terms that may not be favorable to us. If we are unable to raise additional funds when needed, we may be required to delay, limit, reduce or terminate our product development or future commercialization efforts or grant rights to develop and market product candidates that we would otherwise prefer to develop and market ourselves.

Any future indebtedness could adversely affect our ability to operate our business.

We could in the future incur indebtedness containing financial obligations and restrictive covenants, which could have significant adverse consequences, including:

requiring us to dedicate a portion of our cash resources to the payment of interest and principal, reducing money available to fund working capital, capital expenditures, product development and other general corporate purposes;
increasing our vulnerability to adverse changes in general economic, industry and market conditions;
subjecting us to restrictive covenants that may reduce our ability to take certain corporate actions or obtain further debt or equity financing;
limiting our flexibility in planning for, or reacting to, changes in our business and the industry in which we compete; and
placing us at a competitive disadvantage compared to our competitors that have less debt or better debt servicing options.

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Any financial obligations or restrictive covenants could negatively impact our ability to conduct our business.
RISKS RELATED TO THE DISCOVERY, DEVELOPMENT AND COMMERCIALIZATION OF OUR PRODUCT CANDIDATESWe have a limited operating history and no history of commercializing pharmaceutical products, which may make it difficult to evaluate the prospects for our future viability.
We began operations in April 2006. Our operations to date have been limited to financing and staffing our company, developing our technology and product candidates and establishing collaborations. We are conducting our first international, multi-center, pivotal clinical program and have not yet demonstrated an ability to successfully obtain marketing approvals, manufacture product on a commercial scale or arrange for a third party to do so on our behalf, or conduct sales and marketing activities necessary for successful product commercialization. Consequently, predictions about our future success or viability may not be as accurate as they could be if we had a longer operating history or a history of successfully developing and commercializing pharmaceutical products.
Risks Related to the Development of Our Product Candidates
Clinical drug development involves a lengthy and expensive process with an uncertain outcome.
Clinical testing is expensive, time-consuming and uncertain as to outcome. We cannot guarantee that any clinical trials will be conducted as planned or completed on schedule, if at all. The clinical development of our product candidates is susceptible to the risk of failure inherent at any stage of drug development, including failure to demonstrate efficacy in a clinical trial or across a broad or definable population of patients, the occurrence of severe or medically or commercially unacceptable adverse events, fraudulent conduct by clinical investigators, failure to comply with protocols, applicable regulatory requirements or other determinations made by the Food and Drug Administration, or FDA, or any comparable foreign regulatory authority that a drug product is not approvable. It is possible that even if one or more of our product candidates has a beneficial effect, that effect will not be detected during clinical evaluation as a result of one or more of a variety of factors, including the size, duration, design, measurements, conduct or analysis of our clinical trials. Conversely, as a result of the same factors, our clinical trials may indicate an apparent positive effect of a product candidate that is greater than the actual positive effect, if any. Similarly, in our clinical trials, we may fail to detect toxicity of or intolerability caused by our product candidates, or mistakenly believe that our product candidates are toxic or not well tolerated when that is not in fact the case.
WhileFor example, in February 2021, we believeannounced that our DCE Platform may enable drug discovery andPhase 2 clinical development that is more efficient and less expensive than conventional small molecule drug research and development,trial to evaluate CTP-692 as an adjunctive treatment for schizophrenia did not meet the primary endpoint or other secondary endpoints. As a result, we may not be able to realize the advantages that we expect. In addition, while a key element of our drug discovery and development strategy involves utilizing existing information regarding non-deuterated compounds to assist the discovery andhave ceased development of deuterated analogs of those compounds, not all of the product candidates that we develop are based on drugs or drug candidates that progressed into advanced clinical development. Particularly in these situations, existing information regarding the corresponding non-deuterated compound may not be sufficient to mitigate drug development risks.CTP-692.
In addition to the risk of failure inherent in drug development, certain of the deuterated compounds that we, and our collaborators, are developing and may develop in the future may be particularly susceptible to failure to the extent they are based on compounds that others have previously studied or tested, but did not progress in development due to safety,


tolerability or efficacy concerns or otherwise. Deuteration of these compounds may not be sufficient to overcome the problems experienced with the corresponding non-deuterated compound.
We may not be able to continue further clinical development of our wholly ownedwholly-owned development programs, including CTP-543. If we are unable to develop, obtain marketing approval for or commercialize our wholly ownedwholly-owned development programs, ourselves or through a collaboration, or experience significant delays in doing so, our business could be materially harmed.
We currently have no products approved for sale. The success of our wholly ownedwholly-owned development programs will depend on several factors, including:

in the case of CTP-543, our ability to safelytreat moderate to severe alopecia areata with acceptable safety and effectively treat moderate-to-severe alopecia areata;efficacy;
successful and timely completion of clinical trials;trials, including the impact of the COVID-19 pandemic on the initiation or completion of our clinical trials and the supply of our product candidates;
receipt of marketing approvals from applicable regulatory authorities;
the performance of our future collaborators, if any, for our programs;
the extent of any required post-marketing approval commitments to applicable regulatory authorities;
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establishment of supply arrangements with third partythird-party raw materials suppliers and manufacturers;
our ability to manufacture or arrange for the manufacture of our active pharmaceutical ingredients and drug products
with sufficient quality, quantity and reproducibility to support clinical trials and potential future commercialization;
establishment of arrangements with third partythird-party manufacturers to obtain finished drug products that are appropriately packaged for sale;
obtaining and maintaining patent, trade secret protection, regulatory exclusivity and freedom to operate, both in the United States and internationally;
amount of commercial sales, if and when approved;
a continued acceptable safety profile of our programs following any marketing approval; and
agreement by third partythird-party payors to reimburse patients for the costs of treatment with our products, and the terms of such reimbursement.

If we are unable to successfully develop, receive marketing approval for and commercialize our wholly ownedwholly-owned development programs, or experience delays as a result of any of these factors or otherwise, our business could be materially harmed.
If clinical trials of our product candidates fail to satisfactorily demonstrate safety and efficacy to the FDA and other regulators, we, or our collaborators, may incur additional costs or experience delays in completing, or ultimately be unable to complete, the development and commercialization of these product candidates.
We, or our collaborators, must complete nonclinical development and then conduct extensive clinical trials to demonstrate the safety and efficacy of our product candidates in humans in order to obtain marketing approval from regulatory authorities for the sale of our product candidates. Clinical testing is expensive, difficult to design and implement, can take many years to complete and is inherently uncertain as to outcome. Further, the outcome of nonclinical studies and early clinical trials may not be predictive of the success of later clinical trials, and interim results of a clinical trial do not necessarily predict final results. Moreover, nonclinical and clinical data are often susceptible to varying interpretations and analyses. Many companies in the pharmaceutical and biotechnology industries have suffered significant setbacks in late-stage clinical trials after achieving positive results in earlier development, and we cannot be certain that we will not face similar setbacks.
Any inability to successfully complete nonclinical and clinical development could result in additional costs to us, or our collaborators, and impair our ability to generate revenues from product sales, regulatory and commercialization milestones and royalties. In addition, if (1)(i) we, or our collaborators, are required to conduct additional or larger clinical trials or other testing of our product candidates beyond the trials and testing that we, or they, contemplate, (2)(ii) we, or our collaborators, are unable to successfully complete clinical trials of our product candidates or other testing, (3)(iii) the results of these trials or tests are unfavorable, uncertain or are only modestly favorable or (4)(iv) there are unacceptable safety concerns associated with our product candidates, we, or our collaborators, in addition to incurring additional costs, may:
be delayed in obtaining marketing approval for our product candidates;
not obtain marketing approval at all;
obtain approval for indications or patient populations that are not as broad as intended or desired;
obtain approval with labeling that includes significant use or distribution restrictions or significant safety warnings, including boxed warnings;
be subject to additional post-marketing testing or other requirements; or
be required to remove the product from the market after obtaining marketing approval.

For instance, AVP-786 is being developed under a collaboration with Avanir. In 2019, Avanir completed two Phase 3 clinical trials evaluating AVP-786 for the treatment of agitation associated with dementia of the Alzheimer’s type. The second of the Phase 3 clinical trials did not meet its primary or key secondary endpoints; however, following additional data analysis, Avanir

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decided to continue developing AVP-786 for the treatment of agitation associated with dementia of the Alzheimer’s type in a number of ongoing Phase 3 clinical trials. Additionally, Avanir is conducting a Phase 2/3 clinical trial evaluating AVP-786 for the treatment of negative symptoms of schizophrenia. However, given the results of Avanir’s second Phase 3 clinical trial of AVP-786 for the treatment of agitation associated with dementia of the Alzheimer’s type, there is no guarantee that any future trials of AVP-786 will meet their primary or key secondary endpoints.
Even if we, or our collaborators, believe that the results of clinical trials for our product candidates warrant marketing approval, the FDA or comparable foreign regulatory authorities may disagree and may not grant marketing approval of our product candidates.
If we, or our collaborators, experience any of a number of possible unforeseen events in connection with clinical trials of our product candidates, potential marketing approval or commercialization of our product candidates could be delayed or prevented.
We, or our collaborators, may experience numerous unforeseen events during, or as a result of, clinical trials that could delay or prevent marketing approval of our product candidates, including:
toxicity or serious adverse effects may be observed in our nonclinical studies causing us to delay or abandon clinical trials;
clinical trials of our product candidates may produce unfavorable or inconclusive results;
unexpectedly high placebo response rates;
rater variability in the assessment of clinical endpoints;
we, or our collaborators, may decide, or regulators may require us or them, to conduct additional clinical trials and or develop and or validate new clinical endpoints for our clinical trials, or abandon product development programs;
the number of patients required for clinical trials of our product candidates may be larger than we, or our collaborators, anticipate, patient enrollment in these clinical trials may be slower than we, or our collaborators, anticipate or participants may drop out of these clinical trials at a higher rate than we, or our collaborators, anticipate;
our third partythird-party contractors, or those of our collaborators, including those manufacturing our product candidates or components or ingredients thereof or conducting clinical trials on our behalf or on behalf of our collaborators, may fail to comply with regulatory requirements or meet their contractual obligations to us or our collaborators in a timely manner or at all;
criminal or unauthorized misuse of computer systems may result in disruption to our, or our partners’ or vendors’, clinical trials, nonclinical activities or manufacturing, or may compromise data from our, or our partners’ or vendors’, clinical or nonclinical studies;
regulators or institutional review boardsIRBs may not authorize us, our collaborators or our or their investigators to commence a clinical trial or conduct a clinical trial at a prospective trial site;
we, or our collaborators, may have delays in reaching or fail to reach agreement on acceptable clinical trial contracts or clinical trial protocols with prospective trial sites;
patients that enroll in a clinical trial may misrepresent their eligibility to do so or may otherwise not comply with the clinical trial protocol, resulting in the need to drop the patients or the sites from the clinical trial, increase the needed enrollment size for the clinical trial, extend the clinical trial’s duration or cause spurious results;
investigators may provide inaccurate or false data, resulting in spurious clinical results, an inadequate data set or regulators’ unwillingness to approve a product;
regulators, institutional review boardsIRBs or data monitoring committees may require that we, or our collaborators, or our or their investigators suspend or terminate clinical research for various reasons, including noncompliance with regulatory requirements or their standards of conduct, a finding that the participants are being exposed to unacceptable health risks, undesirable
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side effects or other unexpected characteristics of the product candidate or findings of undesirable effects caused by a chemically or mechanistically similar drug or drug candidate;
the FDA or comparable foreign regulatory authorities may disagree with our, or our collaborators’, clinical trial design or our or their interpretation of data from nonclinical studies and clinical trials;
the FDA or comparable foreign regulatory authorities may change their requirements for approvability for a given product or for an indication after we have initiated work based on their previous guidance;
the COVID-19 pandemic may impact the FDA’s or comparable foreign regulatory authorities’ ability to continue its normal operations;
the supply or quality of raw materials or manufactured product candidates or other materials necessary to conduct clinical trials of our product candidates may be insufficient, inadequate or not available at an acceptable cost, or we may experience interruptions in supply;supply, including as a result of shipping delays or vendor personnel shortages due to the COVID-19 pandemic;
we, or our manufacturing vendors, may not produce, or may not consistently produce material, that meets necessary specifications for commercialization;
the FDA or comparable foreign regulatory authorities may determine that our, or our manufacturing vendors, manufacturing or quality control processes fail to meet their specifications or guidelines; and
the approval policies or regulations of the FDA or comparable foreign regulatory authorities may significantly change in a manner rendering our clinical data insufficient to obtain marketing approval.
Product development costs for us, or our collaborators, will increase if we, or they, experience delays in testing or pursuing marketing approvals and we, or they, may be required to obtain additional funds to complete clinical trials and prepare for possible commercialization of our product candidates. We, and our collaborators, do not know whether any nonclinical tests or clinical trials will begin as planned, will need to be restructured or will be completed on schedule, or at all. Significant nonclinical or clinical trial delays also could shorten any periods during which we, or our collaborators, may have the exclusive right to commercialize our product candidates or allow our competitors, or the competitors of our collaborators, to bring products to market before we, or our collaborators, do and impair our ability, or the ability of our collaborators, to successfully commercialize our product candidates and may harm our business and results of operations. In addition, many of the factors


that cause, or lead to, clinical trial delays may ultimately lead to the denial of marketing approval of any of our product candidates.
Additionally, timely enrollment, conduct, progress and completion of clinical trials are reliant on clinical trial sites, which may be adversely affected by global health matters, including, among other things pandemics. For example, some of our clinical trial sites have been impacted by the COVID-19 pandemic. As the COVID-19 pandemic continues to evolve, the conduct of our clinical trials may be adversely affected, despite efforts to mitigate this impact.
If we, or our collaborators, experience delays or difficulties in the enrollment of patients in clinical trials, our, or their, receipt of necessary regulatorymarketing approvals could be delayed or prevented.
We, or our collaborators, may not be able to initiate or continue clinical trials for any of our product candidates if we, or they, are unable to locate and enroll a sufficient number of eligible patients to participate in clinical trials as required by the FDA or comparable foreign regulatory authorities, such as the European Medicines Agency. Patient enrollment is a significant factor in the timing of clinical trials and is affected by many factors, including:
the size and nature of the patient population;
the severity of the disease under investigation;
the availability or interest of clinical sites to enroll patients into our trials;
the willingness or availability of patients to participate in our clinical trials, including due to the COVID-19 pandemic;
the proximity of patients to clinical sites;
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the eligibility criteria for the trial;
the design of the clinical trial, including any requirement to halt current treatmenttherapy in connection with the trial;
the potential need to discontinue investigational treatment at the completion of the study;
the availability of other effective treatments for the indication we are assessing;
access to relevant clinical trial sites;
efforts to facilitate timely enrollment;
competing clinical trials;
support by relevant industry or patient organizations with influence over clinical trial sites; and
clinicians’ and patients’ perceptions as to the potential advantages and risks of the drug being studied in relation to other available therapies, including any new drugs that may be approved or used for the indications we are investigating.
Our inability, or the inability of our collaborators, to enroll a sufficient number of patients for our, or their, clinical trials could result in significant delays or may require us or them to abandon one or more clinical trials altogether. Enrollment delays in our, or their, clinical trials may result in increased development costs for our product candidates, delay or halt the development of and approval processes for our product candidates and jeopardize our, or our collaborators’, ability to commence sales of and generate revenues from our product candidates, which could cause the value of our Companycompany to decline and limit our ability to obtain additional financing, if needed.
Fast Track designation by the FDA may not lead to a faster development, regulatory review or approval.
Although CTP-543 has been granted Fast Track designation by FDA for the treatment of alopecia areata, Fast Track designation does not necessarily lead to a faster development pathway or regulatory review process, and does not increase the likelihood of regulatory approval. The FDA may later withdraw the designation if they believe the designation is no longer supported by the data from our clinical development program.
We, or our collaborators, may attempt to, and in some instances may be able to, secure clearances from the FDA or comparable foreign regulatory authorities to use other expedited development pathways, including a 505(b)(2) regulatory pathway. However, if we or our collaborators are unable to obtain such clearances, we, or they, may be required to conduct additional nonclinical studies or clinical trials beyond those that we, or they, contemplate, which could increase the expense of obtaining, and/or delay the receipt of, necessary marketing approvals relative to an expedited pathway.
The deuterated compounds that we produce and seek to develop can have similar pharmacological properties as their corresponding non-deuterated compounds. Therefore, we believe that we, or our collaborators, may, in some instances, be able to obtain clearance from the FDA or comparable foreign regulatory authorities to follow expedited development programs for some deuterated compounds that reference and rely on findings previously obtained from prior nonclinical studies or clinical trials of the corresponding non-deuterated compounds.
While we anticipate that following an expedited development pathway may be possible for some of our current and future product candidates, we cannot be certain that we, or our collaborators, will be able to secure clearance to follow such expedited development pathways on a regular basis from the FDA, or from comparable foreign regulatory authorities at all. In addition, if we follow, or one of our collaborators follows, such an expedited regulatory pathway and the FDA or comparable foreign regulatory authorities are not satisfied with the results of our having done so, such as might be the case if a deuterated compound is found to have undesirable side effects or other undesirable properties that were not anticipated based on the corresponding non-deuterated compound, the FDA or foreign regulatory authorities may be unwilling to grant clearance to follow expedited development pathways for other deuterated compounds.


In addition, emerging nonclinical or clinical data may indicate that reliance on data for the non-deuterated product can no longer be scientifically justified.
Consequently, we, or our collaborators, may be required to pursue full development programs with respect to any product candidates that we, or they, previously anticipated would be able to follow an expedited development pathway, including conducting a full range of nonclinical and clinical studies to attempt to establish the safety and efficacy of these product candidates. A need to conduct a full range of development activities would significantly increase the costs of development and length of time required before we, or our collaborators, could seek marketing approval of such a product candidate as compared to the costs and timing that we or they anticipate.
Serious adverse events, undesirable side effects or other unexpected properties of our product candidates, including those that we have licensed to collaborators, may be identified during development that could delay or prevent the product candidate’s marketing approval.
All of our product candidates are in nonclinical and clinical development stages and their risk of failure is high. Serious adverse events or undesirable side effects caused by our product candidates, or competitor products with similar mechanisms of action, could cause us, one of our collaborators, an institutional review board,IRB, data monitoring committee or regulatory authorities to interrupt, amend, delay or halt clinical trials of one or more of our product candidates and could result in a more restrictive label or the delay or denial of marketing approval by the FDA or comparable foreign regulatory authorities. A dose of a deuterated compound could, in comparison to an equal dose of the corresponding non-deuterated compound, result in altered exposure levels, distribution and half-life in the body and alter the levels of particular metabolites that are present in the body. These changes may cause serious adverse events or undesirable side effects that we, or our collaborators, did not anticipate, whether based on the characteristics of the corresponding non-deuterated compound or otherwise. If any of our product candidates is associated with serious adverse events or undesirable side effects or have properties that are unexpected, we, or our collaborators, may need to abandon development or limit development of that product candidate to certain uses or subpopulations in which the undesirable side effects or other characteristics are less prevalent, less severe or more acceptable from a risk-benefit perspective. Many compounds that initially showed promise in clinical or earlier stageearlier-stage testing have later been found to cause undesirable or unexpected side effects that prevented further development of the compound. In addition, unexpected adverse clinical effects of a deuterated product candidate, including either those identified by us or deuterated analogs of approved drugs being developed by any third parties, may create general concerns regarding deuteration technology that could delay the development of our product candidates.

The increasing use of social media platforms presents risksBreakthrough Therapy and challenges.

The increasing use of social media platforms presents risks and challenges. Social media increasingly is being used by third parties to communicate about our drug candidates and the diseases they are designed to treat. We believe that members of the Alopecia Areata community may be more active on social media as compared to other patient populations due to the demographics of this patient population. Social media practices in the pharmaceutical and biotechnology industries are evolving, which creates uncertainty and risk of noncompliance with regulations applicable to our business. For example, patients in clinical trials may use social media platforms to comment on the effectiveness of, or adverse experiences with, a drug candidate which could result in reporting obligations. In addition, there is a risk of inappropriate disclosure of sensitive information or negative or inaccurate posts or comments about us on any social networking website. If any of these events were to occur or we otherwise fail to comply with applicable regulations, we could incur liability, face restrictive regulatory actions or incur other harm to our business.
Even if one of our product candidates receives marketing approval, it may fail to achieve the degree of market acceptance by physicians, patients, third party payors and others in the medical community necessary for commercial success and the market opportunity for the product candidate may be smaller than we estimate.
Even if one of our product candidates, including those licensed to our collaborators, is approvedFast Track designations by the appropriate regulatory authorities for marketing and sale, it may nonetheless fail to gain sufficient market acceptance by physicians, patients, third party payors and others in the medical or patient communities. For example, physicians are often reluctant to switch their patients from existing therapies even when new and potentially more effective or convenient treatments enter the market. Further, patients often acclimate to the therapy that they are currently taking and do not want to switch unless their physicians recommend switching products or they are required to switch therapies due to lack of reimbursement for existing therapies. If any of our product candidates receive negative publicity, patients may choose not to request them even if approved, orFDA may not comply with taking them as prescribed.


Effortslead to educate the medical community and third party payors on the benefits of our product candidates may require significant resources and may not be successful. If any of our product candidates is approved but does not achieve an adequate level of market acceptance, we may not generate significant revenues and we may not become profitable. The degree of market acceptance of our product candidates, including those licensed to our collaborators, if approved for commercial sale, will depend on a number of factors, including:
the efficacy and safety of the product;
the potential advantages of the product compared to alternative treatments;
the prevalence and severity of any side effects;
the clinical indications for which the product is approved;
whether the product is designated under physician treatment guidelines as a first-line therapyfaster development, regulatory review or as a second- or third-line therapy;
limitations or warnings, including distribution or use restrictions or burdensome prescription requirements contained in the product’s approved labeling;
our ability, or the ability of our collaborators, to offer the product for sale at commercially acceptable prices;
the product’s convenience and ease of administration compared to alternative treatments;
the willingness of the target patient population to try, and of physicians to prescribe, the product;
the strength of sales, marketing and distribution support;
the approval of other new products for the same indications;
the extent and success of counter-detailing efforts by our competitors;
changes in the standard of care for the targeted indications for the product;
the timing of market introduction of our approved products as well as competitive products; and
availability and amount of reimbursement from government payors, managed care plans and other third party payors.
The potential market opportunities for our product candidates are difficult to precisely estimate. Our estimates of the potential market opportunities are predicated on many assumptions including industry knowledge and publications, third party research reports and other surveys. While we believe that our internal assumptions are reasonable, these assumptions involve the exercise of significant judgment on the part of our management, are inherently uncertain and the reasonableness of these assumptions has not been assessed by an independent source. If any of the assumptions proves to be inaccurate, the actual markets for our product candidates could be smaller than our estimates of the potential market opportunities.
If any of our product candidates receives marketing approval and we, or others, later discover that the drug is less effective than previously believed or causes undesirable side effects that were not previously identified, our ability to market the drug, or that of our collaborators, could be compromised.
Clinical trials of our product candidates are conducted in carefully defined subsets of patients who have agreed to enter into clinical trials. Consequently, it is possible that these individuals are not representative of the actual patient population or that our clinical trials may indicate an apparent positive effect of a product candidate that is greater than the actual positive effect, if any, or alternatively fail to identify undesirable side effects. If, following approval of a product candidate, we, or others, discover that the drug is less effective than previously believed or causes undesirable side effects that were not previously identified, any of the following adverse events could occur:
regulatory authorities may withdraw their approval of the drug and/or seize the drug;
we, or our collaborators, may be required to recall the drug or change the way the drug is administered;
additional restrictions may be imposed on the marketing of, or the manufacturing processes for, the particular drug, including the addition of labeling statements, such as a “black box” warning or a contraindication;
we may be subject to fines, injunctions or the imposition of civil or criminal penalties;
we, or our collaborators, may be required to create a Medication Guide outlining the risks of the previously unidentified side effects for distribution to patients;
we, or our collaborators, could be sued and held liable for harm caused to patients; and
the drug may become less competitive.
Any of these events could have a material and adverse effect on our operations and business and could adversely impact our stock price.



If we are unable to establish sales, marketing and distribution capabilities or enter into sales, marketing and distribution arrangements with third parties, we may not be successful in commercializing any product candidates that we develop if and when those product candidates are approved.
We do not have a sales, marketing or distribution infrastructure and have no experience in the sale, marketing or distribution of pharmaceutical products. To achieve commercial success for any approved product, we must either develop a sales and marketing organization or outsource these functions to third parties. We expect to use a combination of third party collaboration, licensing and distribution arrangements and a focused in-house commercialization capability to sell any products that receive marketing approval.
We generally plan to seek to retain full commercialization rights forAlthough the United States for products that we can commercialize with a specialized sales force and to retain co-promotion or similar rights for the United States when feasible in indications requiring a larger commercial infrastructure. The development of sales, marketing and distribution capabilities will require substantial resources, will be time-consuming and could delay any product launch. If the commercial launch of a product candidate for which we recruit a sales force and establish marketing and distribution capabilities is delayed or does not occur for any reason, we could have prematurely or unnecessarily incurred these commercialization costs. This may be costly, and our investment could be lost if we cannot retain or reposition our sales and marketing personnel. In addition, we may not be able to hire or retain a sales force in the United States that is sufficient in size orFDA has adequate expertise in the medical markets that we plan to target. If we are unable to establish or retain a sales force and marketing and distribution capabilities, our operating results may be adversely affected. If a potential partner has development or commercialization expertise that we believe is particularly relevant to one of our products, then we may seek to collaborate with that potential partner even if we believe we could otherwise develop and commercialize the product independently.
We currently expect to collaborate with third parties for commercialization in the United States of any products that require a large sales, marketing and product distribution infrastructure. We also expect to commercialize our product candidates outside the United States through collaboration, licensing and distribution arrangements with third parties. As a result of entering into arrangements with third parties to perform sales, marketing and distribution services, our product revenues or the profitability of these product revenues may be lower, perhaps substantially lower, than if we were to directly market and sell products in those markets. Furthermore, we may be unsuccessful in entering into the necessary arrangements with third parties or may be unable to do so on terms that are favorable to us. In addition, we may have little or no control over such third parties, and any of them may fail to devote the necessary resources and attention to sell and market our products effectively.
If we do not establish sales and marketing capabilities, either on our own or in collaboration with third parties, we will not be successful in commercializing any of our product candidates that receive marketing approval.
We face substantial competition from other pharmaceutical and biotechnology companies and our operating results may suffer if we fail to compete effectively.
The development and commercialization of new drug products is highly competitive. We expect that we, and our collaborators, will face significant competition from major pharmaceutical companies, specialty pharmaceutical companies and biotechnology companies worldwide with respect to our product candidates that we, or they, may seek to develop or commercialize in the future. Specifically, there are a number of large pharmaceutical and biotechnology companies that currently market and sell products or are pursuing the development of product candidatesgranted CTP-543 Breakthrough Therapy designation for the treatment of neurologic disorders, autoimmune disorders and inflammation, which are key indications for our development programs. Our competitors may succeed in developing, acquiring or licensing technologies and drug products that are more effective, simpler to use, have fewer or more tolerable side effects or are less costly than any product candidates that we are currently developing or that we may develop or acquire, which could render our product candidates obsolete and noncompetitive.
Avanir is developing AVP-786 for the treatment of agitation associated with Alzheimer's disease and other neurologic or psychological disorders. There are competing marketed drugs and product candidates in clinical development for each indication. Intra-Cellular Therapies, Acadia Pharmaceuticals, Axsome Therapeutics, and Otsuka Pharmaceuticals and their partner Lundbeck, are developing treatments for agitation inadult patients with Alzheimer's disease.
We are developing CTP-543 as an oral agent for the treatment of moderate-to-severemoderate to severe alopecia areata. If CTP-543 receives marketing approval for this indication, it may face competition from a number of other product candidates that are being studied for alopecia areata. Ruxolitinib is a Janus kinase, or JAK, inhibitor. A number of companies are pursuing development of JAK inhibitors with a range of subtype selectivitiesareata and Fast Track designation for the treatment of alopecia areata, including Aclaris Therapeutics, LEO PharmaBreakthrough Therapy and Pfizer.



We are developing CTP-692 as an adjunctive treatment of schizophrenia. There are a number of candidates in clinical development for adjunctive treatment of schizophrenia, exploring cognitive or negative symptoms of the disease, including Acadia Pharmaceuticals and SyneuRx International [Taiwan] Corp.
JZP-386 is being developed for the treatment of excessive daytime sleepiness and cataplexy in patients with narcolepsy. The current standard of care is sodium oxybate. Avadel Pharmaceuticals is developing an extended release formulation of sodium oxybate for the treatment of narcolepsy. Hikma Pharmaceuticals PLC developed a generic version of Xyrem® for the treatment of narcolepsy, which was approved by the FDA in January 2017 but will not be marketed until 2023, or earlier under certain circumstances.
CTP-730 is a phosphodiesterase 4, or PDE4, inhibitor that has potential for the treatment of various inflammatory diseases. The non-deuterated drug apremilast is marketed for certain types of psoriasis and psoriatic arthritis. It is also being evaluated for efficacy in other chronic inflammatory diseases. If CTP-730 receives marketing approval, the competition it may face will depend on the particular inflammatory disease for which it receives approval.
Our commercial opportunity could be reduced or eliminated if our competitors develop and commercialize products that are safer, more effective, have fewer or less severe side effects, are more convenient or are less expensive than any products that we, or our collaborators, may develop. Our competitors also may obtain FDA or other marketing approval for their products before we, or our collaborators, are able to obtain approval for ours, which could reduce our ability to utilize expedited regulatory pathways and could result in our competitors establishing a strong market position before we, or our collaborators, are able to enter the market.
Many of our existing and potential future competitors have significantly greater financial resources and expertise in research and development, manufacturing, nonclinical testing, conducting clinical trials, obtaining marketing approvals and marketing approved products than we do. Mergers and acquisitions in the pharmaceutical and biotechnology industries may result in even more resources being concentrated among a smaller number of our competitors. Smaller or early stage companies may also prove to be significant competitors, particularly through collaborative arrangements with large and established companies. These competitors also compete with us in recruiting and retaining qualified scientific and management personnel and establishing clinical trial sites and patient registration for clinical trials, as well as in acquiring technologies complementary to, or necessary for, our programs.
We also face competition in the development of deuterated compounds.
Many pharmaceutical and biotechnology companies have begun to cover deuterated analogs of their product candidates in patent applications and may develop these deuterated compounds. Some of these pharmaceutical and biotechnology companies may have significantly greater financial resources and expertise in research and development, manufacturing, nonclinical testing, conducting clinical trials, obtaining marketing approvals and marketing approved products than we do. In addition, other companies are broadly utilizing deuterium substitution for drug development, including Teva Pharmaceutical Industries Ltd. and DeuteRx LLC. In some cases, these competitors may be interested in developing deuterated compounds that we may be interested in developing for ourselves. In addition, these competitors may enter into collaborative arrangements or business combinations that result in their ability to research and develop deuterated compounds more effectively than us. Our potential competitors also include academic institutions, government agencies and other public and private research organizations.
If our competitors in the development of deuterated compounds are able to grow their intellectual property estates and create new and successful deuterated compounds more effectively than us, our ability to identify additional compounds for nonclinical and clinical development and obtain product revenues in future periods could be compromised, which could result in significant harm to our operations and financial position.
If the FDA or comparable foreign regulatory authorities approve generic versions of any of our products that receive marketing approval, or such authoritiesFast Track designations do not grant our products appropriate periodsnecessarily lead to a faster development pathway or regulatory review process and do not increase the likelihood of data exclusivity before approving generic versions of our products, the sales of our products could be adversely affected.
Once an NDA is approved, the product covered thereby becomes a “reference listed drug” in the FDA’s publication, “Approved Drug Products with Therapeutic Equivalence Evaluations.” Manufacturers may seek approval of generic versions of reference listed drugs through submission of abbreviated new drug applications, or ANDAs, in the United States. In support of an ANDA, a generic manufacturer need not conduct clinical studies. Rather, the applicant generally must show that its product has the same active ingredient(s), dosage form, strength, route of administration and conditions of use or labeling as the reference listed drug and that the generic version is bioequivalent to the reference listed drug, meaning it is absorbed in the body at the same rate and to the same extent. Generic products may be significantly less costly to bring to market than the reference listed drug


and companies that produce generic products are generally able to offer them at lower prices. Thus, following the introduction of a generic drug, a significant percentage of the sales of any branded product or reference listed drug is typically lost to the generic product.
marketing approval. The FDA may not approve an ANDA for a generic product until any applicable period of non-patent exclusivity forlater withdraw the reference listed drug has expired. The Federal Food, Drug, and Cosmetic Act, or FDCA, provides a period of five years of non-patent exclusivity for a new drug containing a new chemical entity. Specifically, in cases where such exclusivity has been granted, an ANDA may not be filed withdesignations if it believes that CTP-543 no longer meets the FDA until the expiration of five years unless the submission is accompanied by a Paragraph IV certification that a patent covering the reference listed drug is either invalid or will not be infringed by the generic product, in which case the applicant may submit its application four years following approval of the reference listed drug. While we believe that our product candidates contain active ingredients that would be treated as new chemical entities by the FDA and, therefore, if approved, should be afforded five years of data exclusivity, the FDA may disagree with that conclusion and may approve generic products after a period that is less than five years. Manufacturers may seek to launch these generic products following the expiration of the applicable marketing exclusivity period, even if we still have patent protection for our product.necessary conditions.
Competition that our products may face from generic versions of our products could materially and adversely impact our future revenue, profitability and cash flows and substantially limit our ability to obtain a return on the investments we have made in those product candidates.
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To the extent we, or our collaborators, market products that are deuterated analogs of generic drugs that are approved or will be approved while we market our products, our products may compete against these generic products and the sales of our products could be adversely affected.

We anticipate that some of the products that we, or our collaborators, may develop will be deuterated analogs of approved drugs that are or will then be available on a generic basis. In addition, if we develop a product that is a deuterated analog of a non-generic approved drug, the FDA or comparable foreign regulatory authorities may also approve generic versions of the corresponding non-deuterated drug. If approved, we expect that our deuterated products will compete against these generic non-deuterated compounds if they are used in the same indications. Even if the approved indications are different for the deuterated and non-deuterated drugs, the generic non-deuterated drug may be used off-label, negatively affecting sales of our product. Efforts to educate the medical community and third party payors on the benefits of any product that we develop as compared to the corresponding non-deuterated compound, or generic versions of it, may require significant resources and may not be successful. If physicians, rightly or wrongly, do not believe that a product that we, or our collaborators, develop offers substantial advantages over the corresponding non-deuterated compound, or generic versions of the corresponding non-deuterated compound, or that the advantages offered by our product as compared to the corresponding non-deuterated compound, or its generic versions, are not sufficient to merit the increased price over the corresponding non-deuterated compound, or its generic versions, that we, or our collaborators, would seek, physicians might not prescribe that product. In addition, third party payors may refuse to provide reimbursement for a product that we, or our collaborators, develop when the corresponding non-deuterated compound, or generic versions of the corresponding non-deuterated compound, offer a cheaper alternative therapy in the same indication, or may otherwise encourage use of the corresponding non-deuterated compound, or generic versions of the corresponding non-deuterated compound, over our product, even if our product possesses favorable pharmaceutical properties or is labeled for a different indication.
Competition that our product candidates may face from any generic non-deuterated product on which our product candidate is based or a later-approved generic version of a branded non-deuterated product on which our product is based, could materially and adversely impact our future revenue, profitability and cash flows and substantially limit our ability to obtain a return on the investments we have made in those product candidates.
Even if we, or our collaborators, are able to commercialize any product candidate that we, or they, develop, the product may become subject to unfavorable pricing regulations, third party payor reimbursement practices or healthcare reform initiatives that could harm our business.
The commercial success of our product candidates will depend substantially, both domestically and abroad, on the extent to which the costs of our product candidates will be paid by health maintenance, managed care, pharmacy benefit and similar healthcare management organizations, or reimbursed by government health administration authorities, private health coverage insurers and other third party payors. Government authorities and third party payors, such as private health insurers and health maintenance organizations, decide which medications they will cover and establish reimbursement levels. The healthcare industry is acutely focused on cost containment, both in the United States and elsewhere. Government authorities and third party payors have attempted to control costs by limiting coverage and the amount of reimbursement for particular medications,


which could affect our ability or that of our collaborators to sell our product candidates profitably. These payors may not view our products, if any, as cost-effective, and coverage and reimbursement may not be available to our customers, or those of our collaborators, or may not be sufficient to allow our products, if any, to be marketed on a competitive basis. Cost-control initiatives could cause us, or our collaborators, to decrease the price we, or they, might establish for products, which could result in lower than anticipated product revenues. If reimbursement is not available, or is available only to limited levels, we, or our collaborators, may not be able to successfully commercialize our product candidates. Even if coverage is provided, the approved reimbursement amount may not be high enough to allow us, or our collaborators, to establish or maintain pricing sufficient to realize a sufficient return on our or their investments.
There is significant uncertainty related to third party payor coverage and reimbursement of newly approved drugs. Marketing approvals, pricing and reimbursement for new drug products vary widely from country to country. Some countries require approval of the sale price of a drug before it can be marketed. In many countries, the pricing review period begins after marketing or product licensing approval is granted. In some foreign markets, prescription pharmaceutical pricing remains subject to continuing governmental control even after initial approval is granted. As a result, we, or our collaborators, might obtain marketing approval for a product in a particular country, but then be subject to price regulations that delay commercial launch of the product, possibly for lengthy time periods, which may negatively impact the revenues we are able to generate from the sale of the product in that country. Adverse pricing limitations may hinder our ability or the ability of our collaborators to recoup our or their investment in one or more product candidates, even if our product candidates obtain marketing approval.
Third party payor coverage of newly approved drugs may be more limited than the indications for which the drugs are approved by the FDA or comparable foreign regulatory authorities. Moreover, eligibility for reimbursement does not imply that any drug will be paid for in all cases or at a rate that covers our costs, including research, development, manufacture, sale and distribution. Reimbursement rates may vary, by way of example, according to the use of the drug and the clinical setting in which it is used. Reimbursement rates may also be based on reimbursement levels already set for lower cost drugs or may be incorporated into existing payments for other services.
In addition, increasingly, third party payors are requiring higher levels of evidence of the benefits and clinical outcomes of new technologies, requiring burdensome comparison studies with currently approved drugs and challenging the prices charged. We, and our collaborators, cannot be sure that coverage will be available for any product candidate that we, or they, commercialize and, if available, that the reimbursement rates will be adequate. Further, the net reimbursement for drug products may be subject to additional reductions if there are changes to laws that presently restrict imports of drugs from countries where they may be sold at lower prices than in the United States. An inability to promptly obtain coverage and adequate payment rates from both government-funded and private payors for any our product candidates for which we, or our collaborators, obtain marketing approval could have a material adverse effect on our operating results, our ability to raise capital needed to commercialize products and our overall financial condition.
We may not be successful in our efforts to identify or discover additional potential product candidates.
A significant portion of our research involves the development of new deuterated compounds using our DCE Platform. These efforts may not be successful in creating compounds that have commercial value or therapeutic utility beyond the corresponding non-deuterated compound, or at all. Our research programs may initially show promise in creating potential product candidates, yet fail to yield viable product candidates for clinical development for a number of reasons, including:
deuterated analogs of existing non-deuterated compounds or newly designed deuterated compounds may not demonstrate satisfactory efficacy or other benefits, such as convenience of dosing, increased tolerability, enhanced formation of desirable active metabolites or reduced formation of toxic metabolites;
potential product candidates may, on further study, be shown to have harmful side effects or other characteristics that indicate that they are unlikely to be products that will receive marketing approval and achieve market acceptance; and
pharmaceutical and biotechnology companies have begun to claim deuterated analogs of their compounds in patent filings, resulting in otherwise promising deuterated product candidates already being covered by patents or patent applications.
If we are unable to identify suitable additional compounds for nonclinical and clinical development, our ability to develop product candidates and obtain product revenues in future periods could be compromised, which could result in significant harm to our financial position and adversely impact our stock price.

Risks Related to Our Dependence on Third Parties

We rely on third parties to conduct our clinical trials and some aspects of our research and nonclinical testing. If they terminate their relationships with us or do not perform satisfactorily, our business may be materially harmed.

Product liability lawsuits against us could divert our resources, cause us to incur substantial liabilities and limit commercializationWe do not independently conduct clinical trials of any productsof our product candidates. We rely on third parties, such as contract research organizations, clinical data management organizations, medical institutions and clinical investigators, to conduct these clinical trials and expect to rely on these third parties to conduct clinical trials of any other product candidate that we develop. We also rely on third parties to conduct some aspects of our research and nonclinical testing and expect to rely on these third parties in the future. Any of these third parties may develop.terminate their engagements with us under certain circumstances. If any of our relationships with these third parties terminate, we may not be able to enter into arrangements with alternative third parties on commercially reasonable terms, or at all. Switching to or adding additional third parties would involve additional cost and require management time and focus. In addition, there is a natural transition period when a new third party commences work, which could result in delays in our product development activities. Although we seek to carefully manage our relationships with third parties, any such challenges or delays could have a material adverse impact on our business, financial condition and prospects.
We face an inherent riskOur reliance on these third parties for clinical development activities limits our control over these activities but we remain responsible for ensuring that each of product liability claims asour studies is conducted in accordance with the applicable protocol, legal and regulatory requirements and scientific standards. For example, notwithstanding the obligations of a resultcontract research organization for a trial of the clinical testingone of our product candidates, despite obtaining appropriate informed consents fromwe remain responsible for ensuring that each of our clinical trials is conducted in accordance with the general investigational plan and protocols for the trial. Moreover, the FDA requires us to comply with GCPs for conducting, recording and reporting the results of clinical trials to assure that data and reported results are credible and accurate and that the rights, integrity and confidentiality of trial participants. We will face an even greater risk ifparticipants are protected. The FDA enforces these GCPs through periodic inspections of trial sponsors, principal investigators, clinical trial sites and IRBs. If we or our collaborators commercially sellthird-party contractors fail to comply with applicable GCPs, the clinical data generated in our clinical trials may be deemed unreliable and the FDA may require us to perform additional clinical trials before approving our product candidates, which would delay the marketing approval process. We cannot be certain that, upon inspection, the FDA will determine that any product thatof our clinical trials comply with GCPs.
Furthermore, these third parties are not our employees, and except for remedies available to us under our agreements with such contractors, we cannot control whether or not they devote sufficient time, skill and resources to our ongoing development programs. These contractors may also have relationships with other commercial entities, including our competitors, which could impede their ability to devote appropriate time to our clinical programs. If these third parties do not successfully carry out their contractual duties, meet expected deadlines or conduct their services in accordance with our contracts, regulatory requirements or our stated protocols, we may not be able to obtain, or they may develop. If we cannot successfully defend ourselves against product liability claims, we may incur substantial liabilities or be required to limit commercialization ofdelayed in obtaining, marketing approvals for our product candidates. RegardlessIf that occurs, we will not be able to, or may be delayed in our efforts to, successfully commercialize our product candidates. In such an event, our financial results and the commercial prospects for any product candidates that we seek to develop could be harmed, our costs could increase and our ability to generate revenues could be delayed, impaired or foreclosed.
We also rely on other third parties to store, label and distribute drug supplies for our clinical trials. Any performance failure on the part of the meritsour distributors could delay clinical development or eventual outcome, liability claims may result in:
decreased demand formarketing approval of our product candidates or commercialization of any resulting products, that we may develop;producing additional losses and depriving us of potential product revenue.
injuryWe are also required to our reputationregister clinical trials and significant negative media attention;
withdrawalpost the results of completed clinical trial participants;
significant coststrials on a government-sponsored database, such as ClinicalTrials.gov, within certain timeframes. Failure to defend litigation;
distraction to our management diverting focus from business operations and strategy;
initiation of investigations by regulators;
product recalls, withdrawals or labeling, marketing or promotional restrictions;
substantial monetary awards to trial participants or patients;
loss of revenue; and
do so can result in the inability to commercialize any products that we may develop.report our clinical results in certain publications, fines, adverse publicity and civil and criminal sanctions.
Although we maintain product liability insurance coverage, it may not fully cover potential liabilities that we may incur. The cost of any product liability litigation or other proceeding, even if resolved in our favor, could be substantial. We will need to increase our insurance coverage if and when we begin selling any product candidate that receives marketing approval. In addition, insurance coverage is becoming increasingly expensive. If we are unable to obtain or maintain sufficient insurance coverage at an acceptable cost or to otherwise protect against potential product liability claims, it could prevent or inhibit the development and commercial production and sale of our product candidates, which could adversely affect our business, financial condition, results of operations and prospects.
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RISKS RELATED TO OUR DEPENDENCE ON THIRD PARTIES

We depend on collaborations with third parties for the development and commercialization of some of our product candidates and expect to continue to do so in the future. Our prospects with respect to those product candidates will depend in significant part on the success of those collaborations.
We have entered into collaborations with Avanir, Celgene and Jazz Pharmaceuticals for the development and commercialization of certain of our product candidates and expect to enter into additional collaborations in the future. We have limited control over the amount and timing of resources that our collaborators dedicate to the development or commercialization of our product candidates, and our ability to generate revenues from these arrangements will depend on our collaborators’ abilities to successfully perform the functions assigned to them in these arrangements. In addition, our collaborators have the right to abandon research or development projects and terminate applicable agreements, including funding obligations, prior to or upon the expiration of the agreed upon terms.
Collaborations involving our product candidates pose a number of risks, including:
collaborators have significant discretion in determining the efforts and resources that they will apply to these collaborations;
collaborators may not perform their obligations as expected;
collaborators may not pursue development and commercialization of our product candidates or may elect not to continue or renew development or commercialization programs, based on clinical trial results, changes in the collaborators’ strategic focus or available funding or external factors, such as an acquisition, that divert resources or create competing priorities;
collaborators may delay clinical trials, provide insufficient funding for a clinical trial program, stop a clinical trial or abandon a product candidate, repeat or conduct new clinical trials or require a new formulation of a product candidate for clinical testing;
collaborators may conduct their clinical trials poorly or inadequately, harming our products, including our products’ development in other territories;
product candidates developed in collaboration with us, including in particular product candidates based on deuteration of a collaborator’s marketed drugs or advanced clinical candidates, may be viewed by our collaborators as competitive with their own product candidates or products, which may cause collaborators to cease to devote resources to the commercialization of our product candidates;


a collaborator with marketing and distribution rights to one or more products may not commit sufficient resources to the marketing and distribution of such product or products;
disagreements with collaborators, including disagreements over proprietary rights, contract interpretation or the preferred course of development, might cause delays or termination of the research, development or commercialization of product candidates, might lead to additional responsibilities for us with respect to product candidates or might result in litigation or arbitration, any of which would be time-consuming and expensive;
collaborators may steal our trade secrets or may hire valuable employees from us;
collaborators may fail to protect our trade secrets;
collaborators may not properly maintain or defend our intellectual property rights or may use our proprietary information in such a way as to invite litigation that could jeopardize or invalidate our intellectual property or proprietary information or expose us to potential litigation;
collaborators may infringe the intellectual property rights of third parties, which may expose us to litigation and potential liability; and
collaborations may be terminated and, if terminated, may result in a need for additional capital to pursue further development or commercialization of the applicable product candidates.
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Collaboration agreements may not lead to development or commercialization of product candidates in the most efficient manner or at all. If a collaborator of ours is involved in a business combination, it could decide to delay, diminish or terminate the development or commercialization of any product candidate licensed to it by us.
We expect to seek to establish additional collaborations, and if we are not able to establish them on commercially reasonable terms, we may have to alter our development and commercialization plans.
Our drug development programs and the potential commercialization of our product candidates will require substantial additional cash to fund expenses. We may seek one or more collaborators for the development and commercialization of one or more of our product candidates.
We face significant competition in seeking appropriate collaborators. Whether we reach a definitive agreement for collaboration will depend, among other things, upon our assessment of the collaborator’s resources and expertise, the terms and conditions of the proposed collaboration and the proposed collaborator’s evaluation of a number of factors. Those factors may include the potential differentiation of our product candidate from its corresponding non-deuterated analog, design or results of clinical trials, the likelihood of approval by the FDA or comparable foreign regulatory authorities and the regulatory pathway for any such approval, the potential market for the product candidate, the proposed collaborator’s perception of our freedom to operate in a particular market or markets without challenge, the costs and complexities of manufacturing and delivering the product to patients and the potential of competing products. The collaborator may also consider alternative product candidates or technologies that may be available for collaboration and whether such collaboration could be more attractive than the one with us for our product candidate.
Collaborations are complex and time-consuming to negotiate and document. In addition, there have been a significant number of recent business combinations among large pharmaceutical companies that have resulted in a reduced number of potential future collaborators. We are also restricted under the terms of certain of our existing collaboration agreements from entering into collaborations regarding or otherwise developing specified compounds that are similar to the compounds that are subject to those agreements and collaboration agreements that we enter into in the future may contain further restrictions on our ability to enter into potential collaborations or to otherwise develop specified compounds.
We may not be able to negotiate collaborations for our product candidates on a timely basis, on acceptable terms, or at all. If we are unable to do so, we may have to limit the development of the product candidate for which we are seeking to collaborate, reduce or delay its development program or one or more of our other development programs, delay its potential commercialization or reduce the scope of any sales or marketing activities or increase our expenditures and undertake development or commercialization activities at our own expense. If we elect to increase our expenditures to fund development or commercialization activities on our own, we may need to obtain additional capital, which may not be available to us on acceptable terms or at all. If we do not have sufficient funds, we may not be able to further develop our product candidates or bring them to market and generate product revenue. In cases where we seek a collaborator for a product compound that is a deuterated analog of a compound that has been previously developed, failure to enter into a collaboration with the developer of the corresponding non-deuterated compound may result in a loss of the potential to obtain clearance from the FDA to follow expedited development programs that reference and rely on findings previously obtained from the developer’s prior nonclinical or clinical studies of the corresponding non-deuterated compound.



We rely on third partiesRisks Related to conduct our clinical trials and some aspects of our research and nonclinical testing. If they terminate their relationships with us or do not perform satisfactorily, our business may be materially harmed.
We do not independently conduct clinical trials of any of our product candidates. We rely on third parties, such as contract research organizations, clinical data management organizations, medical institutions and clinical investigators, to conduct these clinical trials and expect to rely on these third parties to conduct clinical trials of any other product candidate that we develop. We also rely on third parties to conduct some aspects of our research and nonclinical testing and expect to rely on these third parties in the future. Any of these third parties may terminate their engagements with us under certain circumstances. If any of our relationships with these third parties terminate, we may not be able to enter into arrangements with alternative third parties on commercially reasonable terms, or at all. Switching to or adding additional third parties would involve additional cost and require management time and focus. In addition, there is a natural transition period when a new third party commences work, which could result in delays in our product development activities. Although we seek to carefully manage our relationships with our contract research organizations, any such challenges or delays could have a material adverse impact on our business, financial condition and prospects.
Our reliance on these third parties for clinical development activities limits our control over these activities but we remain responsible for ensuring that each of our studies is conducted in accordance with the applicable protocol, legal, regulatory and scientific standards. For example, notwithstanding the obligations of a contract research organization for a trial of one of our product candidates, we remain responsible for ensuring that each of our clinical trials is conducted in accordance with the general investigational plan and protocols for the trial. Moreover, the FDA requires us to comply with standards, commonly referred to as current Good Clinical Practices, or GCPs, for conducting, recording and reporting the results of clinical trials to assure that data and reported results are credible and accurate and that the rights, integrity and confidentiality of trial participants are protected. The FDA enforces these GCPs through periodic inspections of trial sponsors, principal investigators, clinical trial sites and institutional review boards. If we or our third party contractors fail to comply with applicable GCPs, the clinical data generated in our clinical trials may be deemed unreliable and the FDA may require us to perform additional clinical trials before approving our product candidates, which would delay the marketing approval process. We cannot be certain that, upon inspection, the FDA will determine that any of our clinical trials comply with GCPs.
Furthermore, these third parties are not our employees, and except for remedies available to us under our agreements with such contractors, we cannot control whether or not they devote sufficient time, skill and resources to our ongoing development programs. These contractors may also have relationships with other commercial entities, including our competitors, which could impede their ability to devote appropriate time to our clinical programs. If these third parties do not successfully carry out their contractual duties, meet expected deadlines or conduct their services in accordance with our contracts, regulatory requirements or our stated protocols, we may not be able to obtain, or may be delayed in obtaining, marketing approvals for our product candidates. If that occurs, we will not be able to, or may be delayed in our efforts to, successfully commercialize our product candidates. In such an event, our financial results and the commercial prospects for any product candidates that we seek to develop could be harmed, our costs could increase and our ability to generate revenues could be delayed, impaired or foreclosed.
We also rely on other third parties to store, label and distribute drug supplies for our clinical trials. Any performance failure on the part of our distributors could delay clinical development or marketing approval of our product candidates or commercialization of any resulting products, producing additional losses and depriving us of potential product revenue.
We are also required to register clinical trials and post the results of completed clinical trials on a government-sponsored database, such as ClinicalTrials.gov, within certain timeframes. Failure to do so can result in the inability to report our clinical results in certain publications, fines, adverse publicity and civil and criminal sanctions.
Because there are limited sources of deuterium, we, and our collaborators, are exposed to a number of risks and uncertainties associated with our deuterium supply.
We believe that all of the deuterium that we use in manufacturing our product candidates is currently derived, directly or indirectly, from deuterium oxide. For most of our deuterium supply, we rely on bulk supplies of deuterium oxide which we currently source from multiple suppliers, including two located in North America, one of which is in the United States.
In order to internationally transport any deuterium oxide that we purchase from our current or potential future foreign suppliers, we, or our suppliers, may be required to obtain an export license from the country of origin and we may be required to obtain an International Import Certificate or other governmental approvals or assurances from the country of destination. We are also required to obtain an export license from the Nuclear Regulatory Commission before shipping deuterium oxide from the United States to any contract manufacturer in another country. Export licenses and certain other required documents may specify the


maximum amount of deuterium oxide that we, or our suppliers, are permitted to either import or export. In order for us to obtain supplies of deuterium oxide from foreign suppliers, they may be required to obtain an export license from the country of origin and we may be required to obtain domestic governmental approvals or assurances. In addition, our current U.S. export licenses may be insufficient to meet our future requirements. We, or our suppliers, may not be able to obtain such licenses, approvals or assurances in a timely manner or at all.
Certain of our manufacturing processes for our product candidates incorporate deuterium by using deuterated chemical intermediates or reagents that are derived from deuterium oxide. For the deuterated chemical intermediates and reagents, we are not subject to the license requirements applicable to deuterium oxide; however the manufacturer of the deuterated chemical intermediate or reagent may themselves be required to obtain deuterium oxide under applicable licensing requirements. Most of the manufacturers of these deuterated chemical intermediates and reagents are not located in countries that produce bulk quantities of deuterium oxide. Therefore, our ability to source these deuterated chemical intermediates will depend on the ability of these manufacturers to obtain deuterium oxide from other countries. In the future we may arrange for supplies of deuterated chemical intermediates or reagents from manufacturers located in countries from which they can source deuterium oxide in bulk. However, contract manufacturers in these countries may not represent a viable alternative to our current suppliers. We do not have long-term agreements with our suppliers of deuterated chemical intermediates or reagents and we obtain some of these deuterated chemical intermediates or reagents from single sources, putting us at risk of uncontrolled cost increases or supply interruptions if we cannot establish alternative sourcing arrangements. Deuterated chemical intermediates may be expensive or difficult to obtain or may be produced by specialized techniques that are not widely practiced and we may not be able to enter into arrangements for larger scale supply of deuterated chemical intermediates on acceptable terms, or at all.
We estimate that our current sources of deuterium oxide will be sufficient to meet our anticipated requirements; however, we do not have long-term agreements with our current suppliers. If we are not able to establish or maintain supply arrangements, or any relevant foreign governments decide to withhold authorizations for the export of deuterium oxide that we seek, we may be unable to secure alternative sources. If we are unable to obtain sufficient supplies of deuterium oxide from our current suppliers or our potential future foreign supplier, we would be forced to either seek alternative suppliers of deuterium oxide, likely in other countries, or alternative sources of deuterium. Such alternative supplies may not be available to us on acceptable terms, or at all.
If we are unable to obtain sufficient supplies of deuterium, our ability to produce our product candidates would be impeded and our business, financial condition and prospects could be harmed. In particular, certain of our manufacturing processes are projected to require particularly large quantities of deuterium for late-stage clinical trials and for commercialization. Consequently, any adverse impact on our ability to obtain deuterium oxide from our current suppliers, import deuterium oxide into the United States or export deuterium oxide to our contract manufacturers could have a particularly severe impact on our ability to develop or commercialize those product candidates.
Similarly, to develop and commercialize any of our licensed product candidates, our collaborators will need to obtain supplies of deuterium and will be subject to risks and requirements in connection with sourcing deuterium that are similar to the ones that we face. In addition, if any of our product candidates is approved by the FDA, then the FDA will also have regulatory jurisdiction over the manufacture and use of deuterium oxide and deuterated chemical intermediates or reagents in such products. Any adverse impact on our, or our collaborators’, ability to obtain deuterium could delay or prevent the development or commercialization of our product candidates, which could have a material adverse effect on our business.
We contract with third parties for the manufacture and distribution of our product candidates for nonclinical and clinical testing and expect to continue to do so in connection with our future development and commercialization efforts. This reliance on third parties increases the risk that we will not have sufficient quantities of our product candidates or such quantities at an acceptable cost, which could delay, prevent or impair our development or commercialization efforts.
We currently rely, and expect to continue to rely, on third party contractors to manufacture nonclinical and clinical supplies of our product candidates and to package, label and ship these supplies. We expect to rely on third party contractors to manufacture, formulate, package, label and distribute commercial quantities of any product candidate that we commercialize following approval for marketing by applicable regulatory authorities. Reliance on such third party contractors entails risks, including:
manufacturing delays, including if our third party contractors give greater priority to the supply of other products over our product candidates or if they otherwise do not satisfactorily perform according to the terms of the agreements between us and them;


the possible termination or nonrenewal of agreements by our third party contractors at a time that is costly or inconvenient for us;
potentially limited numbers of available contractors due to the need for uncommon equipment or expertise, or pre-existing conflicts of interest;
the possible breach by the third party contractors of our agreements with them;
possible theft of intellectual property or trade secrets;
possible theft of our materials, including starting materials, intermediates, active pharmaceutical ingredients, or drug products;
the failure of third party contractors to comply with applicable regulatory requirements;
the possible mislabeling of clinical supplies, potentially resulting in the wrong dose amounts being supplied or active drug or placebo not being properly identified;
possible contamination, or nonconformance with product or packaging specifications, of our product during or after its manufacture;
possible interruptions in our contractors’ operations, including departure of key personnel, disruption due to merger and acquisitions activities or supply chain disruptions;
the possibility of clinical supplies not being delivered to clinical sites on time, leading to clinical trial interruptions, or of drug supplies not being distributed to commercial vendors in a timely manner, resulting in lost sales; and
the possible misappropriation of our proprietary information, including our trade secrets and know-how.

If any of our product candidates are approved by any regulatory agency, we plan to enter into agreements with third party contract manufacturers for the commercial production and distribution of those products. It may be difficult for us to reach agreement with a contract manufacturer on satisfactory terms or in a timely manner, especially if the manufacturer believes it is uniquely suited to use our deuterium chemistry manufacturing processes or otherwise has unusual market power, or that our deuterium chemistry manufacturing processes bear greater production risks than manufacture of non-deuterated compounds. In addition, we may face competition for access to manufacturing facilities as there are a limited number of contract manufacturers operating under current good manufacturing practices, or cGMPs, that are capable of manufacturing our product candidates. Consequently, we may not be able to reach agreement with third party manufacturers on satisfactory terms, which could delay our commercialization efforts.
Third party manufacturers are required to comply with cGMPs and similar regulatory requirements outside the United States. Facilities used by our third party manufacturers must be approved by the FDA after we submit an NDA and before potential approval of the product candidate. Similar regulations apply to manufacturers of our product candidates for use or sale in foreign countries. We do not directly control the manufacturing process and are completely dependent on our third party manufacturers for compliance with the applicable regulatory requirements for the manufacture of our product candidates. If our manufacturers fail to consistently manufacture material that conforms to the strict regulatory requirements of the FDA and any applicable foreign regulatory authority, they will not be able to secure the applicable approval for their manufacturing facilities. If these facilities are not approved for commercial manufacture, we may need to find alternative manufacturing facilities, which could result in delays in obtaining approval for the applicable product candidate.
In addition, our manufacturers are subject to ongoing periodic inspections by the FDA and corresponding state and foreign agencies for compliance with cGMPs and similar regulatory requirements both prior to and following the receipt of marketing approval for any of our product candidates. Some of these inspections may be unannounced. Failure by any of our manufacturers to comply with applicable cGMPs or other regulatory requirements could result in sanctions being imposed on us, including fines, injunctions, civil penalties, delays, suspensions or withdrawals of approvals, operating restrictions, interruptions in supply and criminal prosecutions, any of which could significantly and adversely affect supplies of our product candidates and have a material adverse impact on our business, financial condition and results of operations.
Our current and anticipated future dependence upon others for the manufacture of our product candidates may adversely affect our future profit margins and our ability to commercialize any products that receive marketing approval on a timely and competitive basis.
RISKS RELATED TO OUR INTELLECTUAL PROPERTYIntellectual Property
If we are unable to obtain and maintain sufficient patent protection for our product candidates, or if the scope of the patent protection is not sufficiently broad, our competitors could develop and commercialize products similar or identical to ours, and our ability to successfully commercialize our product candidates may be adversely affected.
Our success depends in large part on our ability to obtain and maintain patent protection in the United States and other countries with respect to our proprietary product candidates. If we do not adequately protect our intellectual property,


competitors may be able to erode or negate any competitive advantage we may have, which could harm our business and ability to achieve profitability. To protect our proprietary position, we file patent applications in the United States and abroad related to our novel product candidates that are important to our business. The patent application and approval process is expensive, uncertain and time-consuming. We may not be able to file and prosecute all necessary or desirable patent applications at a reasonable cost or in a timely manner. Neither deuterium itself, nor the general concept of selective substitution of deuterium for hydrogen in existing pharmaceutical compounds, is patentable; therefore, we usually seek patents on a compound-by-compound basis or on a relatively narrow genus of compounds. We are not guaranteed that patents will issue protecting any particular deuterated compound for which we seek patent protection. We also cannot guarantee that another company will not be able to find a
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different pattern of deuterium substitution that is equally or more effective in improving the characteristics of a non-deuterated compound, then patenting that deuterated compound and competing with us.
Our ability to obtain and maintain patent protection for our product candidates may be limited if disclosures of non-deuterated compounds are held to anticipate or make obvious claims of deuterated analogs of the same or similar compounds in any given territory. In addition, several large pharmaceutical and biotechnology companies have begun to pursue patent protection for deuterated analogs of their products and product candidates, and may in the future obtain patent protection that covers deuterated analogs of those product candidates. If patents directed primarily to non-deuterated compounds are deemed to protect deuterated analogs of those compounds or patent claims on deuterated analogs of compounds become common in the biotechnology and pharmaceutical industries, these factors may substantially limit in part or in whole, our ability to seek and obtain patent protection for new product candidates based on deuterium modification of compounds. It may also limit in part or in whole, our ability to develop new product candidates based on deuterium modification of such compounds without obtaining a license from those patent holders. In certain cases, a company that owns the patent on a non-deuterated compound may be able to file a continuation or divisional patent on deuterated analogs of their compounds that successfully claims priority to the original filing date of the non-deuterated composition, causing their patent to have priority over ours, even if filed later than ours was.
The patent position of biotechnology and pharmaceutical companies generally is highly uncertain. No consistent policy regarding the breadth of claims allowed in biotechnology and pharmaceutical patents has emerged to date in the United States or in many foreign jurisdictions. In addition, the determination of patent rights with respect to pharmaceutical compounds commonly involves complex legal and factual questions, which has in recent years been the subject of much litigation. As a result, the issuance, scope, validity, enforceability and commercial value of our patent rights are highly uncertain.
Assuming the other requirements for patentability are met, currently, the first to file a patent application is generally entitled to the patent. However, prior to March 16, 2013, in the United States, the first to invent was entitled to the patent. Publications of discoveries in the scientific literature often lag behind the actual discoveries, and patent applications in the United States and other jurisdictions are typically not published until 18 months after filing, or in some cases not at all. Therefore, we cannot be certain that we were the first to make the inventions claimed in our patents or pending patent applications, or that we were the first to file for patent protection of such inventions.
We may also become involved in opposition, derivation, reexamination, post grant review, inter partes reviewPGR, IPR or interference proceedings in the United States or elsewhere, challenging our patent rights or the patent rights of others. For example, in April 2017, Incyte Corporation filed an inter parties review, or IPR, petition with2018, the PTAB instituted an IPR brought against the '149 patent by Incyte. The '149 patent covers the composition of the U.S. PTO, challenging the validitymatter of U.S. Patent No. 9,249,149, which claims deuterium-modified versionsdeuterated analogs of ruxolitinib, including CTP-543. In October 2017,April 2019, the PTAB declinedissued a final written decision in connection with the IPR that held that the claims of the '149 patent were unpatentable as obvious. In January 2020, the Federal Circuit granted our motion to institutevacate and remand the IPR.PTAB final written decision in light of the Federal Circuit ruling on the Constitution’s Appointments Clause in Arthrex, Inc. v. Smith & Nephew, Inc. The PTO Director sought review of both Arthrex and the decision in our case in the Supreme Court. In November 2017, IncyteJune 2021, the Supreme Court decided that the remedy for a violation of the Appointments Clause should not be a hearing before a new panel of PTAB judges, but a remand to the PTO to allow the Director to consider whether to modify the decision of the PTAB. The Supreme Court remanded our case to the Federal Circuit in light of Arthrex, and the Federal Circuit granted our request for a remand to the PTO Director. We filed a request for reconsiderationto have the PTO Director review the final written decision; however, that request was denied in January 2022. As a result, we intend to proceed with our appeal to the Federal Circuit. The '149 patent remains valid and enforceable until any appeals by us have been exhausted.
In addition, in May 2021, the PTAB instituted a PGR brought against the '659 patent by Incyte. The '659 patent covers methods of treating hair loss, including alopecia areata, with certain doses of CTP-543. We expect the PTAB'sPTAB to issue a final written decision in connection with the PGR by May 2022. We intend to vigorously defend the '149 and '659 patents.
There can be no assurance that we will be successful in defending the '149 patent or the '659 patent. If both patents are found to be invalid, it could potentially shorten the timeframe during which remains pending. Anwe could prevent generic versions of CTP-543 from entering the market. In addition, adverse determinationdeterminations in any suchother submission, proceeding or litigation could reduce the scope of, or invalidate, our patent rights, allow third parties to commercialize our technology or product candidates and compete directly with us, without payment to us, or result in our inability to manufacture or commercialize products without infringing third partythird-party patent rights.
Our pending and future patent applications may not result in patents being issued whichthat protect our product candidates, in whole or in part, or which effectively prevent others from commercializing competitive products. Changes in either the patent laws or interpretation of the patent laws in the United States and other countries may diminish the value of our patents or narrow the scope of our patent protection. In addition, the laws of foreign countries may not protect our rights to the same extent or in the
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same manner as the laws of the United States. For example, European patent law restricts the patentability of methods of treatment of the human body more than United StatesU.S. law does.
Even if our patent applications issue as patents, they may not issue in a form that will provide us with any meaningful protection, prevent competitors from competing with us or otherwise provide us with any competitive advantage. Our competitors may be able to circumvent our patents by developing similar or alternative technologies or products in a non-infringing manner. Our competitors may also seek approval to market their own products similar to or otherwise competitive with our products. Alternatively, our competitors may seek to market generic versions of any approved products by submitting ANDAs to the FDA in which they claim that patents owned or licensed by us are invalid, unenforceable or not infringed. In these circumstances, we may need to defend or assert our patents, or both, including by filing lawsuits alleging patent


infringement. In any of these types of proceedings, a court or other agency with jurisdiction may find our patents invalid or unenforceable, or that our competitors are competing in a non-infringing manner. In certain territories, losses to an infringing product may not be sufficiently great to justify the costs of challenging the infringer and asserting our rights. In some situations, governments have allowed or enabled the sale of competing products that infringe a company’s intellectual property. Thus, even if we have valid and nominally enforceable patents, these patents still may not provide protection against competing products or processes sufficient to achieve our business objectives.
The issuance of a patent is not conclusive as to its inventorship, scope, validity or enforceability, and our owned and licensed patents may be challenged in the courts or patent offices in the United States and abroad, including challenges through the U.S. Patent and Trademark Office post-grant review procedures.PTO’s PGR proceedings. Such challenges may result in loss of exclusivity or in patent claims being narrowed, invalidated or held unenforceable, in whole or in part, which could limit our ability to stop others from using or commercializing similar or identical technology and products, or limit the duration of the patent protection of our technology and products. In addition, given the amount of time required for the development, testing and regulatory review of new product candidates, patents protecting such candidates might expire before or shortly after such candidates are commercialized.
If we are unable to protect the confidentiality of our trade secrets, the value of our technology could be materially adversely affected and our business would be harmed.
While we have obtained composition of matter patents with respect to our most advanced product candidates, our DCE Platform is not patented. In seeking to develop and maintain a competitive position through our DCE Platform and as to other aspects of our business, we rely on trade secrets, including unpatented know-how, technology and other proprietary information. We seek to protect these trade secrets, in part, by entering into non-disclosure and confidentiality agreements with parties who have access to them, such as our consultants, independent contractors, advisors, corporate collaborators, outside scientific collaborators, contract manufacturers, suppliers and other third parties. We also enter into confidentiality and invention or patent assignment agreements with employees and certain consultants. Any party with whom we have executed such an agreement may breach that agreement and disclose our proprietary information, including our trade secrets, and we may not be able to obtain adequate remedies for such breaches. Enforcing a claim that a party illegally disclosed or misappropriated a trade secret is difficult, expensive and time-consuming, and the outcome is unpredictable. In addition, if any of our trade secrets were to be lawfully obtained or independently developed by a competitor, we would have no right to prevent such third party, or those to whom they communicate such technology or information, from using that technology or information to compete with us. If any of our trade secrets were to be disclosed to or independently developed by a competitor, our business and competitive position could be harmed.
Third parties may sue us alleging that we are infringing their intellectual property rights, and such litigation could be costly and time consuming and could prevent or delay us from developing or commercializing our product candidates.
Our commercial success depends, in part, on our ability to develop, manufacture, market and sell our product candidates without infringing the intellectual property and other proprietary rights of third parties. Our CTP-543 compound is based, and potential future product candidates may be based, on products that are covered by issued patents or patent applications, the holders of which may attempt to assert claims against us. To date, we are not aware of any judicial decision holding that a patent that covers a non-deuterated compound should be construed to also cover deuterated analogs thereof, absent specific claims with respect to the deuterated analogs. However, any such judicial decision, or legal proceedings asserting such claims, could increase the likelihood of potential infringement claims being asserted against us. If any third partythird-party patents or patent applications are found to cover our product candidates or their methods of use, we may not be free to manufacture or market our product candidates as planned without obtaining a license, which may not be available on commercially reasonable terms, or at all.
For example, CTP-543 is a deuterium-modified versiondeuterated analog of ruxolitinib. Ruxolitinib is marketed in the U.S. by Incyte Corporation under the name Jakafi. Incyte hasowns patents covering ruxolitinib that may be unexpired if and when we seek marketing approval for CTP-543. Incyte also has USowns a U.S. patent 9,662,335 that broadly claims deuterated analogs of ruxolitinib. OnIn June 27, 2017, we filed a Post Grant ReviewPGR with the Patent Trial and Appeal Board, or PTAB seeking to invalidate all claims of Incyte'sIncyte’s U.S. Patent No. 9,662,335, which includes claims relating topatent that covers deuterated ruxolitinib analogs.analogs of ruxolitinib. In January 2018, the PTAB rejecteddid not grant our petition to challenge the validity of the '335Incyte’s patent. In May 2018, our request for reconsideration was denied.
In addition, Columbia University is the assignee of a patentpatents licensed to Aclaris Therapeutics, Inc. claiming the use of ruxolitinib, isotopic forms of ruxolitinib and other named JAK inhibitors for the treatment of hair loss disorders, including alopecia areata, which may be unexpired if and when we seek marketing approval for CTP-543. If we have to defend ourselves in a patent infringement suit, we may incur significant expenses in doing so. Such litigation could delay our ability to market, or prevent us from marketing, CTP-543.


There is a substantial amount of intellectual property litigation in the biotechnology and pharmaceutical industries, and we may become party to, or threatened with, litigation or other adversarial proceedings regarding intellectual property rights with respect to our products candidates, including interference proceedings before the U.S. Patent and Trademark Office.product candidates. Third parties may assert infringement claims against us based on existing or future intellectual property rights. The outcome of intellectual property litigation is subject to uncertainties that cannot be adequately quantified in advance. The coverage of patents is subject to interpretation by the courts, and the interpretation is not always uniform. If we are sued for patent infringement, we would need to demonstrate that our product candidates, products or methods either do not infringe the relevant patent claims or that these patent claims are invalid or unenforceable, and we may not be able to do this. Proving invalidity is difficult. For example, in the United States, proving invalidity under most circumstances requires a showing of clear and convincing evidence to overcome the presumption of validity enjoyed by issued patents. We may also assert that a patent claim for a corresponding non-deuterated compound does not cover our product. Even if we are successful in these proceedings, we
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may incur substantial costs and the time and attention of our management and scientific personnel could be diverted in pursuing these proceedings, which could have a material adverse effect on us. In addition, we may not have sufficient resources to bring these actions to a successful conclusion.
If we are found to infringe a third party’s intellectual property rights, we could be forced, including by court order, to cease developing, manufacturing or commercializing the infringing product candidate or product and could be required to pay potentially significant damages. Alternatively, we may be required to obtain a license from such third party in order to use the infringing technology and continue developing, manufacturing or marketing the infringing product candidate. However, we may not be able to obtain any required license on commercially reasonable terms, or at all. Even if we were able to obtain a license, it could be non-exclusive, thereby giving our competitors access to the same technologies licensed to us. In addition, we could be found liable for monetary damages, including treble damages and attorneys’ fees if we are found to have willfully infringed a patent. A finding of infringement could prevent us from commercializing our product candidates or force us to cease some of our business operations, which could materially harm our business. Claims that we have misappropriated the confidential information or trade secrets of third parties could have a similar negative impact on our business.
We may become involved in lawsuits to protect or enforce our patents or other intellectual property, which could be expensive, time consuming and unsuccessful.
Competitors may infringe our patents, trademarks, copyrights or other intellectual property. To counter infringement or unauthorized use, we may be required to file infringement claims, which can be expensive and time consuming and divert the time and attention of our management and scientific personnel. In any patent infringement proceeding, there is a risk that a court will decide that a patent of ours is invalid or unenforceable, in whole or in part, and that we do not have the right to stop the other party from using the invention at issue. There is also a risk that, even if the validity and enforceability of such patents is upheld, the court will construe the patent’s claims narrowly or decide that we do not have the right to stop the other party from using the invention at issue on the grounds that our patent claims do not cover the invention. An adverse outcome in a litigation or proceeding involving our patents could limit our ability to assert our patents against those parties or other competitors, and may curtail or preclude our ability to exclude third parties from making and selling similar or competitive products. Any of these occurrences could adversely affect our competitive business position, business prospects and financial condition.
Even if we establish infringement, the court may decide not to grant an injunction against further infringing activity and instead award only monetary damages, which may or may not be an adequate remedy. Furthermore, because of the substantial amount of discovery required in connection with intellectual property litigation, there is a risk that some of our confidential information could be compromised by disclosure during litigation. Moreover, there can be no assurance that we will have sufficient financial or other resources to file and pursue such infringement claims, which typically last for years before they are concluded. Even if we ultimately prevail in such claims, the monetary cost of such litigation and the diversion of the attention of our management and scientific personnel could outweigh any benefit we receive as a result of the proceedings.
RISKS RELATED TO REGULATORY APPROVAL AND OTHER LEGAL COMPLIANCE MATTERSIf we are unable to protect the confidentiality of our trade secrets, the value of our technology could be materially adversely affected and our business would be harmed.
In seeking to develop and maintain a competitive position through our knowledge of deuterium chemistry and as to other aspects of our business, we rely on trade secrets, including unpatented know-how, technology and other proprietary information. We seek to protect these trade secrets, in part, by entering into non-disclosure and confidentiality agreements with parties who have access to them, such as our consultants, independent contractors, advisors, corporate collaborators, outside scientific collaborators, contract manufacturers, suppliers and other third parties. We also enter into confidentiality and invention or patent assignment agreements with employees and certain consultants. Any party with whom we have executed such an agreement may breach that agreement and disclose our proprietary information, including our trade secrets, and we may not be able to obtain adequate remedies for such breaches. Enforcing a claim that a party illegally disclosed or misappropriated a trade secret is difficult, expensive and time-consuming, and the outcome is unpredictable. In addition, if any of our trade secrets were to be lawfully obtained or independently developed by a competitor, we would have no right to prevent such third party, or those to whom they communicate such technology or information, from using that technology or information to compete with us. If any of our trade secrets were to be disclosed to or independently developed by a competitor, our business and competitive position could be harmed.
Risks Related to the Manufacturing of Our Product Candidates
We contract with third parties for the manufacture and distribution of our product candidates for nonclinical and clinical testing and expect to continue to do so in connection with our future development and commercialization efforts. This
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reliance on third parties increases the risk that we will not have sufficient quantities of our product candidates or such quantities at an acceptable cost, or that the product candidates will not be of sufficient quality or reproducibility or produced on our desired schedule, which could delay, prevent or impair our development or commercialization efforts.
We currently rely, and expect to continue to rely, on third-party contractors to manufacture nonclinical and clinical supplies of our product candidates and to package, label and ship these supplies. We expect to rely on third-party contractors to manufacture, formulate, package, label and distribute commercial quantities of any product candidate that we commercialize following approval for marketing by applicable regulatory authorities. Reliance on such third-party contractors entails risks, including:
manufacturing delays, including if our third-party contractors give greater priority to the supply of other products over our product candidates or if they otherwise do not satisfactorily perform according to the terms of the agreements between us and them;
potentially incorrect data analysis, resulting in falsely-positive, falsely-negative or misleading or uninterpretable results;
potential industrial accidents such as fires or explosions that compromise our product candidates or the ability of the contractors to timely deliver them;
natural disasters, public health crises, pandemics and epidemics, including the COVID-19 pandemic;
the possible termination or non-renewal of agreements by our third-party contractors at a time that is costly or inconvenient for us;
potentially limited numbers of available contractors due to the need for uncommon equipment or expertise, or pre-existing conflicts of interest;
the possible breach by the third-party contractors of our agreements with them;
possible theft of intellectual property or trade secrets;
possible theft of our materials, including starting materials, intermediates, active pharmaceutical ingredients or drug products;
the failure of third-party contractors to comply with applicable regulatory requirements;
the possible mislabeling of clinical supplies, potentially resulting in the wrong dose amounts being supplied or active drug or placebo not being properly identified;
possible contamination, or non-conformance with product or packaging specifications, of our product during or after its manufacture;
possible interruptions in our contractors’ operations, including departure of key personnel, disruption due to merger and acquisitions activities or supply chain disruptions;
the possibility of clinical supplies not being delivered to clinical sites on time, leading to clinical trial interruptions, or of drug supplies not being distributed to commercial vendors in a timely manner, resulting in lost sales; and
the possible misappropriation of our proprietary information, including our trade secrets and know-how.

In some cases, the technical skills required to manufacture our product candidates may be unique or proprietary to the original manufacturer and we may have difficulty, or there may be contractual restrictions prohibiting us from, transferring such skills to a back-up or alternate supplier, or we may be unable to transfer such skills at all. In addition, if we are required to change manufacturers for any reason, we will be required to verify that the new manufacturer maintains facilities and procedures that comply with quality standards and with all applicable regulations. We will also need to verify, such as through a manufacturing comparability study, that any new manufacturing process will produce our product candidates according to the specifications previously submitted to the FDA or another regulatory authority. The delays associated with the verification of a new manufacturer could negatively affect our ability to develop product candidates or commercialize our products in a timely
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manner or within budget. Furthermore, a manufacturer may possess technology related to the manufacture of our product candidates that such manufacturer owns independently. This would increase our reliance on such manufacturer or require us to obtain a license from such manufacturer in order to have another manufacturer manufacture our product candidates. In addition, changes in manufacturers often involve changes in manufacturing procedures and processes, which could require that we conduct bridging studies between our prior clinical supply used in our clinical trials and that of any new manufacturer. We may be unsuccessful in demonstrating the comparability of clinical supplies, which could require the conduct of additional clinical trials.

If any of our product candidates are approved by any regulatory agency, we plan to enter into agreements with third-party contract manufacturers for the commercial production and distribution of those products. It may be difficult for us to reach agreement with a contract manufacturer on satisfactory terms or in a timely manner, especially if the manufacturer believes it is uniquely suited to use our deuterium chemistry manufacturing processes or otherwise has unusual market power, or that our deuterium chemistry manufacturing processes bear greater production risks than manufacture of non-deuterated compounds. In addition, we may face competition for access to manufacturing facilities as there are a limited number of contract manufacturers operating under cGMPs that are capable of manufacturing our product candidates. Consequently, we may not be able to reach agreement with third-party manufacturers on satisfactory terms, which could delay our commercialization efforts.
Third-party manufacturers are required to comply with cGMPs and similar regulatory requirements outside the United States. Facilities used by our third-party manufacturers must be inspected by the FDA after we submit an NDA and before potential approval of the product candidate. Similar regulations apply to manufacturers of our product candidates for use or sale in foreign countries. We do not directly control the manufacturing process and are completely dependent on our third-party manufacturers for compliance with the applicable regulatory requirements for the manufacture of our product candidates. If our manufacturers fail to consistently manufacture material that conforms to the strict regulatory requirements of the FDA and any applicable foreign regulatory authority, or if they unacceptably deviate from standard operating procedures in the production of our product candidates, they will not be able to secure the applicable approval for or a regulatory authority may find deficiencies with their manufacturing facilities. If deficiencies are found at these facilities or if these facilities are not approved for commercial manufacture, we may need to find alternative manufacturing facilities, which could result in delays in obtaining approval for the applicable product candidate.
In addition, our manufacturers are subject to ongoing periodic inspections by the FDA and corresponding state and foreign agencies for compliance with cGMPs and similar regulatory requirements both prior to and following the receipt of marketing approval for any of our product candidates. Some of these inspections may be unannounced. Failure by any of our manufacturers to comply with applicable cGMPs or other regulatory requirements could result in sanctions being imposed on us, including fines, injunctions, civil penalties, delays, suspensions or withdrawals of approvals, operating restrictions, interruptions in supply and criminal prosecutions, any of which could significantly and adversely affect supplies of our product candidates and have a material adverse impact on our business, financial condition and results of operations.
Our current and anticipated future dependence upon others for the manufacture of our product candidates may adversely affect our future profit margins and our ability to commercialize any products that receive marketing approval on a timely and competitive basis.
Because there are limited commercial suppliers of deuterated materials and the import/export of deuterated materials may be controlled by governments, we, and our collaborators, are exposed to a number of risks and uncertainties associated with our supply of deuterated materials.
When manufacturing our product candidates, we incorporate deuterium using either deuterium oxide or deuterated chemical reagents (which themselves are derived from deuterium oxide). As a result, we rely on being able to obtain and transport deuterated materials in order to manufacture our product candidates.
We rely on third parties to both supply deuterated materials and to manufacture our product candidates. However, our suppliers of deuterated materials are often located in different countries than the manufacturers of our product candidates, which would require the deuterated materials to be transported across country borders.
Transporting deuterated materials across country borders often requires licenses or other government approvals. The import and export of deuterated materials into or out of the United States is regulated and may require a license from the Nuclear Regulatory Commission or other government agency. Similarly, the import and export of deuterated materials into or out of other countries may require local government license or approvals. Licenses and certain other required documents may specify the maximum amount of deuterated materials that we, or our suppliers, are permitted to import or export per year. We, or our
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suppliers, may not be able to obtain such licenses or approvals in a timely manner or at all. In addition, our current import and export licenses may be insufficient to meet our future requirements.
We estimate that our current sources of deuterated materials will be sufficient to meet our anticipated requirements; however, we do not currently have long-term agreements with our suppliers. If we are not able to establish or maintain supply arrangements, or any relevant foreign governments decide to withhold authorizations for the import or export of deuterated materials that we seek, we may be unable to secure alternative sources. If we are unable to obtain sufficient supplies of deuterated materials from our current suppliers, we would be forced to seek alternative suppliers of deuterated materials, likely in other countries. Such alternative supplies may not be available to us on acceptable terms, or at all.
If we are unable to obtain sufficient supplies of deuterated materials, our ability to produce our product candidates would be impeded and our business, financial condition and prospects could be harmed. Additionally, the inability to import or export deuterated materials to our third-party manufacturers could have a particularly severe impact on our ability to develop or commercialize our product candidates.
Similarly, to develop and commercialize any of our licensed product candidates, our collaborators will need to obtain supplies of deuterated materials and will be subject to risks and requirements in connection with sourcing deuterated materials that are similar to the ones that we face. Any adverse impact on our collaborators’ ability to obtain deuterated materials could delay or prevent the development or commercialization of our licensed product candidates, which could have a material adverse effect on our business.
Risks Related to Marketing Approval of Our Product Candidates
Even if we complete the necessary nonclinical studies and clinical trials, the marketing approval process is expensive, time consuming and uncertain and we may not obtain approvals for the commercialization of some or all of our product candidates. As a result, we cannot predict when or if, and in which territories, we, or our collaborators, will obtain marketing approval to commercialize a product candidate.
The research, testing, manufacturing, labeling, approval, selling, marketing, promotion and distribution of drug products are subject to extensive regulation by the FDA and comparable foreign regulatory authorities, which regulations differ from


country to country. Failure to obtain marketing approval for a product candidate in a given territory will prevent us, and our collaborators, from commercializing the product candidate in that territory. Our product candidates are in various stages of development and are subject to the risks of failure inherent in drug development. We, and our collaborators, have not submitted an application for or received marketing approval for any of our product candidates in the United States or in any other jurisdiction. We have limited experience in filing and supporting the applications necessary to gain marketing approvals.
The process of obtaining marketing approvals, both in the United States and abroad, is lengthy, expensive and uncertain. It may take many years, if approval is obtained at all, and can vary substantially based upon a variety of factors, including the type, complexity and novelty of the product candidates involved. This is the case even though the deuterated compounds that we produce and seek to develop can have similar pharmacological properties as their corresponding non-deuterated compounds. Even if, as a result of any such similarities, we, or our collaborators, obtain clearance from the FDA and other regulatory authorities to follow expedited development programs for some deuterated compounds that reference and rely on previous findings for non-deuterated compounds, the review and approval of our product candidates may still take a substantial period of time. Conversely, in certain countries regulators may consider our deuterated compounds to be equivalent to non-deuterated compounds that possess regulatory exclusivity and therefore refuse to approve our compounds until the expiration of that exclusivity.
In addition, changes in marketing approval policies during the development period, changes in or the enactment or promulgation of additional statutes, regulations or guidance or changes in regulatory review for each submitted product application, may cause delays in the approval or rejection of an application. Regulatory authorities have substantial discretion in the approval process and may refuse to accept any application or may decide that our data are insufficient for approval and require additional nonclinical, clinical or other studies. In addition, varying interpretations of the data obtained from nonclinical and clinical testing could delay, limit or prevent marketing approval of a product candidate. Any marketing approval we, or our collaborators, ultimately obtain may be limited or subject to restrictions or post-approval commitments that render the approved product not commercially viable.
Any delay in obtaining or failure to obtain required approvals could materially adversely affect our ability, or that of our collaborators, to generate revenue from the particular product candidate, which likely would result in significant harm to our financial position and adversely impact our stock price.
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Even if we, or our collaborators, obtain marketing approvals for our product candidates, the approved labeling may include significant safety warnings or use limitations, which could adversely affect the degree of market acceptance.
When the FDA approves a product, it also approves the label that is required to accompany the product. In some cases, the label may contain significant safety warnings, including boxed warnings, commonly referred to as “black box” warnings. Boxed warnings may be required based on safety data related to the approved product itself or safety data from other products with similar mechanisms of action, even if the safety events identified in the boxed warnings have not been reported with the approved product.
The JAK inhibitors tofacitinib, baricitinib and upadacitinib were all approved for use in rheumatoid arthritis with similar boxed warnings. In September 2021, the FDA issued a Drug Safety Communication regarding the risks associated with JAK inhibitors used to treat certain chronic inflammatory conditions. In this communication, the FDA announced that the boxed warnings for tofacitinib would be expanded based on an increased risk of serious heart-related events seen in a large, randomized safety clinical trial with tofacitinib in patients with rheumatoid arthritis. The FDA also announced that the expansion of the boxed warnings would apply to the other two JAK inhibitors, baricitinib and upadacitinib, even though those approved products have not been studied in similar large, randomized safety clinical trials. In addition, the FDA has limited the use of some JAK inhibitors in certain indications to those patients who have not responded to or cannot tolerate other approved products that have a different mechanism of action. In September 2021, the FDA approved a topical formulation of the JAK inhibitor ruxolitinib for mild to moderate atopic dermatitis with a label that includes the same boxed warnings and specifies short term use when other topical agents have failed. In January 2022, the FDA approved JAK inhibitors upadacitinib and abrocitinib in moderate to severe atopic dermatitis not controlled by other systemic agents, or when their use is inadvisable, with the same boxed warnings.
CTP-543 is an oral JAK inhibitor that we are developing for the treatment of alopecia areata, for which there are currently no treatments approved by the FDA. If we are successful in obtaining marketing approval for CTP-543, it is unknown whether the FDA will impose similar boxed warnings on CTP-543. If other products are approved for the treatment of alopecia areata that are not JAK inhibitors, it is also unknown whether the FDA will limit the use of CTP-543 to those patients who have not responded to or cannot tolerate the other approved products.
If the FDA approves any of our product candidates and imposes boxed warnings or use limitations, the market acceptance could be adversely affected.
Failure to obtain marketing approval in international jurisdictions would prevent our product candidates from being marketed abroad.
In order to market and sell our products in the European Union and many other jurisdictions, we, or our collaborators, must obtain separate marketing approvals and comply with numerous and varying regulatory requirements. The approval procedure varies among countries and can involve additional testing. The time required to obtain approval may differ substantially from that required to obtain FDA approval. The marketing approval process outside the United States generally includes all of the risks associated with obtaining FDA approval. In addition, in many territories outside the United States, it is required that the product be approved for reimbursement before the product can be approved for sale in that territory. Our products may not receive commercially feasible prices in any given territory, or the price offered for our products in a territory may have an adverse effect on their prices in other territories if we were to accept.accept such price. We, and our collaborators, may not obtain approvals from regulatory authorities outside the United States on a timely basis, if at all. Approval by the FDA does not ensure approval by regulatory authorities in other countries or jurisdictions, and approval by one regulatory authority outside the United States does not ensure approval by regulatory authorities in other countries or jurisdictions or by the FDA.
Even if we, or our collaborators, obtain marketing approvals for our product candidates, the terms of approvals and ongoing regulation of our products may limit how we, or they, manufacture and market our products, which could materially impair our ability to generate revenue.
Once marketing approval has been granted, an approved product and its manufacturer and marketer are subject to ongoing review and extensive regulation. We, and our collaborators, must therefore comply with requirements concerning advertising and promotion for any of our product candidates for which we or they obtain marketing approval. Promotional communications with respect to prescription drugs are subject to a variety of legal and regulatory restrictions and must be consistent with the information in the product’s approved labeling. Thus, we, and our collaborators, will not be able to promote any products we develop for indications or uses for which they are not approved.
In addition, manufacturers of approved products and those manufacturers’ facilities are required to comply with extensive FDA requirements, including ensuring that quality control and manufacturing procedures conform to cGMPs, which include
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requirements relating to quality control and quality assurance as well as the corresponding maintenance of records and documentation and reporting requirements. We, our contract manufacturers, our collaborators and their contract manufacturers could be subject to periodic unannounced inspections by the FDA to monitor and ensure compliance with cGMPs.


Accordingly, assuming we, or our collaborators, receive marketing approval for one or more of our product candidates, we, and our collaborators, and our and their contract manufacturers will continue to expend time, money and effort in all areas of regulatory compliance, including manufacturing, production, product surveillance and quality control.
If we, and our collaborators, are not able to comply with post-approval regulatory requirements, we, and our collaborators, could have the marketing approvals for our products withdrawn by regulatory authorities and our, or our collaborators’, ability to market any future products could be limited, which could adversely affect our ability to achieve or sustain profitability. Further, the cost of compliance with post-approval regulations may have a negative effect on our operating results and financial condition.
Any of our product candidates for which we, or our collaborators, obtain marketing approval in the future could be subject to post-marketing restrictions or withdrawal from the market and we, or our collaborators, may be subject to substantial penalties if we, or they, fail to comply with regulatory requirements or if we, or they, experience unanticipated problems with our products following approval.
Any of our product candidates for which we, or our collaborators, obtain marketing approval in the future, as well as the manufacturing processes, post-approval studies and measures, labeling, advertising and promotional activities for such product, among other things, will be subject to continual requirements of and review by the FDA and other regulatory authorities. These requirements include submissions of safety and other post-marketing information and reports, registration and listing requirements, requirements relating to manufacturing, quality control, quality assurance and corresponding maintenance of records and documents, requirements regarding the distribution of samples to physicians and recordkeeping. Even if marketing approval of a product candidate is granted, the approval may be subject to limitations on the indicated uses for which the product may be marketed or to the conditions of approval, including the requirement to implement a Risk Evaluation and Mitigation Strategy, or REMS.
The FDA may also impose requirements for costly post-marketing studies or clinical trials and surveillance to monitor the safety or efficacy of a product. The FDA and other agencies, including the Department of Justice, closely regulate and monitor the post-approval marketing and promotion of products to ensure that they are manufactured, marketed and distributed only for the approved indications and in accordance with the provisions of the approved labeling. The FDA imposes stringent restrictions on manufacturers’ communications regarding off-label use and if we, or our collaborators, do not market any of our product candidates for which we, or they, receive marketing approval for only their approved indications, we, or they, may be subject to warnings or enforcement action for off-label marketing. Violation of the FDCA and other statutes, including the False Claims Act, relating to the promotion and advertising of prescription drugs may lead to investigations or allegations of violations of federal and state health carehealthcare fraud and abuse laws and state consumer protection laws.
In addition, later discovery of previously unknown adverse events or other problems with our products or their manufacturers or manufacturing processes, or failure to comply with regulatory requirements, may yield various results, including:
restrictions on such products, manufacturers or manufacturing processes;
restrictions on the indication, patient population or other parameters for which the drug is approved;
restrictions on the labeling or marketing of a product;
restrictions on product distribution or use;
requirements to conduct post-marketing studies or clinical trials;
warning letters or untitled letters;
withdrawal of the products from the market;
refusal to approve pending applications or supplements to approved applications that we submit;
recall of products;
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fines, restitution or disgorgement of profits or revenues;
reputational damage;
suspension or withdrawal of marketing approvals;
refusal to permit the import or export of products;
product seizure; or
injunctions or the imposition of civil or criminal penalties.
Risks Related to Commercialization and Market Acceptance of Our Product Candidates
We face substantial competition from other pharmaceutical and biotechnology companies and our operating results may suffer if we fail to compete effectively.
The development and commercialization of new drug products is highly competitive. We expect that we, and our collaborators, will face significant competition from major pharmaceutical companies, specialty pharmaceutical companies and biotechnology companies worldwide with respect to our product candidates that we, or they, may seek to develop or commercialize in the future. Specifically, there are a number of large pharmaceutical and biotechnology companies that currently market and sell products or are pursuing the development of product candidates for the treatment of autoimmune disorders. Our competitors may succeed in developing, acquiring or licensing technologies and drug products that attain preferred reimbursement by payors or are more effective, simpler to use, have fewer or more tolerable side effects or are less costly than any product candidates that we are currently developing or that we may develop or acquire, or which are marketed more effectively, which could render our product candidates obsolete and noncompetitive.
We are developing CTP-543 as an oral agent for the treatment of moderate to severe alopecia areata. If CTP-543 receives marketing approval for this indication, it may face competition from a number of other product candidates that are being studied for alopecia areata. Other companies pursuing development of oral JAK inhibitors for the treatment of alopecia areata include Eli Lilly and Company and Pfizer Inc.
Our commercial opportunity could be reduced or eliminated if our competitors develop and commercialize products that are safer, more effective, have fewer or less severe side effects, are more convenient or are less expensive than any products that we, or our collaborators, may develop. Our competitors also may obtain FDA or other marketing approval for their products before we, or our collaborators, are able to obtain approval for ours, which could reduce our ability to utilize expedited regulatory pathways and could result in our competitors establishing a strong market position before we, or our collaborators, are able to enter the market.
Many of our existing and potential future competitors have significantly greater financial resources and expertise in research and development, manufacturing, nonclinical testing, conducting clinical trials, obtaining marketing approvals and marketing approved products than we do. Mergers and acquisitions in the pharmaceutical and biotechnology industries may result in even more resources being concentrated among a smaller number of our competitors. Smaller or early-stage companies may also prove to be significant competitors, particularly through collaborative arrangements with large and established companies. These competitors also compete with us in recruiting and retaining qualified scientific and management personnel and establishing clinical trial sites and patient registration for clinical trials, as well as in acquiring technologies complementary to, or necessary for, our programs.
Even if one of our product candidates receives marketing approval, it may fail to achieve the degree of market acceptance by physicians, patients, third-party payors and others in the medical community necessary for commercial success and the market opportunity for the product candidate may be smaller than we estimate.
Even if one of our product candidates, including those licensed to our collaborators, is approved by the appropriate regulatory authorities for marketing and sale, it may nonetheless fail to gain sufficient market acceptance by physicians, patients, third-party payors, formulary decision-makers and others in the medical or patient communities. For example, physicians are often reluctant to switch their patients from existing therapies even when new and potentially more effective or convenient treatments enter the market. Further, patients often acclimate to the therapy that they are currently taking and do not want to switch unless their physicians recommend switching products or they are required to switch therapies due to lack of reimbursement for
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existing therapies. If any of our product candidates receive negative publicity, patients may choose not to request them even if approved, or may not comply with taking them as prescribed.
Efforts to educate the medical community, patients, formulary decision-makers and third-party payors on the benefits of our product candidates may require significant resources and may not be successful. If any of our product candidates is approved but does not achieve an adequate level of market acceptance, we may not generate significant revenues and we may not become profitable. The degree of market acceptance of our product candidates, including those licensed to our collaborators, if approved for commercial sale, will depend on a number of factors, including:
the efficacy and safety of the product;
the potential advantages of the product compared to alternative treatments;
the prevalence and severity of any side effects;
the clinical indications for which the product is approved;
whether the product is designated under physician treatment guidelines as a first-line therapy or as a second- or third-line therapy;
limitations or warnings, including distribution or use restrictions or burdensome prescription requirements contained in the product’s approved labeling;
our ability, or the ability of our collaborators, to offer the product for sale at commercially acceptable prices;
the product’s convenience and ease of administration compared to alternative treatments;
the willingness of the target patient population to try, and of physicians to prescribe, the product;
the strength of sales, marketing and distribution support;
the approval of other new products for the same indications;
the extent and success of counter-detailing efforts by our competitors;
the pricing, extent of discounts or bundled products offered by our competitors;
the organization stability of our collaborators, if any;
changes in the standard of care for the targeted indications for the product;
the timing of market introduction of our approved products as well as competitive products; and
the availability and amount of reimbursement from government payors, managed care plans and other third-party payors.
The potential market opportunities for our product candidates are difficult to precisely estimate. Our estimates of the potential market opportunities are predicated on many assumptions, including industry knowledge and publications, third-party research reports and other surveys. While we believe that our internal assumptions are reasonable, these assumptions involve the exercise of significant judgment on the part of our management, are inherently uncertain and the reasonableness of these assumptions has not been assessed by an independent source. If any of the assumptions proves to be inaccurate, the actual markets for our product candidates could be smaller than our estimates of the potential market opportunities.
If any of our product candidates receives marketing approval and we, or others, later discover that the drug is less effective than previously believed, or causes undesirable side effects that were not previously identified or at a higher rate than was projected during clinical development, our ability to market the drug, or that of our collaborators, could be compromised.
Clinical trials of our product candidates are conducted in carefully defined subsets of patients who have agreed to enter into clinical trials. Consequently, it is possible that these individuals are not representative of the actual patient population or that
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our clinical trials may indicate an apparent positive effect of a product candidate that is greater than the actual positive effect, if any, or alternatively fail to identify undesirable side effects. If, following approval of a product candidate, we, or others, discover that the drug is less effective than previously believed or causes undesirable side effects that were not previously identified, any of the following adverse events could occur:
regulatory authorities may withdraw their approval of the drug and/or seize the drug;
we, or our collaborators, may need to recall the drug or change the way the drug is administered;
additional restrictions may be imposed on the marketing of, or the manufacturing processes for, the particular drug, including the addition of labeling statements, such as boxed warnings or a contraindication;
we may be subject to fines, injunctions or the imposition of civil or criminal penalties;
we, or our collaborators, may be required to operate under a REMS;
we, or our collaborators, could be sued and held liable for harm caused to patients; and
the drug may become less competitive.
Any of these events could have a material and adverse effect on our operations and business and could adversely impact our stock price.
If we are unable to establish sales, marketing and distribution capabilities or enter into sales, marketing and distribution arrangements with third parties, we may not be successful in commercializing any product candidates that we develop if and when those product candidates are approved.
We do not have a sales, marketing or distribution infrastructure and as a company have no experience in the sale, marketing or distribution of pharmaceutical products. To achieve commercial success for any approved product, we must either develop a sales and marketing organization or outsource these functions to third parties. We expect to use a combination of third-party collaboration, licensing and distribution arrangements and a focused in-house commercialization capability to sell any products that receive marketing approval.
We generally plan to seek to retain full commercialization rights for the United States for products that we can commercialize with a specialized sales force and to retain co-promotion or similar rights for the United States when feasible in indications requiring a larger commercial infrastructure. The development of sales, marketing and distribution capabilities will require substantial resources, will be time-consuming and could delay any product launch. If the commercial launch of a product candidate for which we recruit a sales force and establish marketing and distribution capabilities is delayed or does not occur for any reason, we could have prematurely or unnecessarily incurred these commercialization costs. This may be costly, and our investment could be lost if we cannot retain or reposition our sales and marketing personnel. In addition, we may not be able to hire or retain a sales force in the United States that is sufficient in size or has adequate expertise in the medical markets that we plan to target. If we are unable to establish or retain a sales force and marketing and distribution capabilities, our operating results may be adversely affected. If a potential partner has development or commercialization expertise that we believe is particularly relevant to one of our products, then we may seek to collaborate with that potential partner even if we believe that we could otherwise develop and commercialize the product independently.
We currently expect to collaborate with third parties for commercialization in the United States of any products that require a large sales, marketing and product distribution infrastructure. We also expect to commercialize our product candidates outside the United States through collaboration, licensing and distribution arrangements with third parties, if at all. As a result of entering into arrangements with third parties to perform sales, marketing and distribution services, our product revenues or the profitability of these product revenues may be lower, perhaps substantially lower, than if we were to directly market and sell products in those markets. Furthermore, we may be unsuccessful in entering into the necessary arrangements with third parties or may be unable to do so on terms that are favorable to us. In addition, we may have little or no control over such third parties, and any of them may fail to devote the necessary resources and attention to sell and market our products effectively, or may actively sell a competing product at the expense of selling ours.
If we do not establish sales and marketing capabilities, either on our own or in collaboration with third parties, we will not be successful in commercializing any of our product candidates that receive marketing approval.
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If the FDA or comparable foreign regulatory authorities approve generic versions of any of our products that receive marketing approval, or such authorities do not grant our products appropriate periods of data exclusivity before approving generic versions of our products, the sales of our products could be adversely affected.
Once an NDA is approved, the product covered thereby becomes a "reference listed drug" in the FDA’s publication, “Approved Drug Products with Therapeutic Equivalence Evaluations.” Manufacturers may seek approval of generic versions of reference listed drugs through submission of ANDAs in the United States. In support of an ANDA, a generic manufacturer need not conduct clinical studies. Rather, the applicant generally must show that its product has the same active ingredient(s), dosage form, strength, route of administration and conditions of use or labeling as the reference listed drug and that the generic version is bioequivalent to the reference listed drug, meaning it is absorbed in the body at the same rate and to the same extent. Generic products may be significantly less costly to bring to market than the reference listed drug and companies that produce generic products are generally able to offer them at lower prices. Thus, following the introduction of a generic drug, a significant percentage of the sales of any branded product or reference listed drug is typically lost to the generic product.
The FDA may not approve an ANDA for a generic product until any applicable period of non-patent exclusivity for the reference listed drug has expired. The FDCA provides a period of five years of non-patent exclusivity for a new drug containing a new chemical entity. Specifically, in cases where such exclusivity has been granted, an ANDA may not be filed with the FDA until the expiration of five years unless the submission is accompanied by a Paragraph IV certification that a patent covering the reference listed drug is either invalid or will not be infringed by the generic product, in which case the applicant may submit its application four years following approval of the reference listed drug. While we believe that our product candidates contain active ingredients that would be treated as new chemical entities by the FDA and, therefore, if approved, should be afforded at least five years of data exclusivity, the FDA may disagree with that conclusion and may approve generic products after a period that is less than five years. Manufacturers may seek to launch these generic products following the expiration of the applicable marketing exclusivity period, even if we still have patent protection for our product.
Competition that our products may face from generic versions of our products could materially and adversely impact our future revenue, profitability and cash flows and substantially limit our ability to obtain a return on the investments we have made in those product candidates.
To the extent we, or our collaborators, market products that are deuterated analogs of generic drugs that are approved or will be approved while we market our products in territories in which the generic drug is available, our products may compete against these generic products and the sales of our products could be adversely affected.
We anticipate that some of the products that we, or our collaborators, may develop will be deuterated analogs of approved drugs that are or will then be available on a generic basis. In addition, if we develop a product that is a deuterated analog of a non-generic approved drug, the FDA or comparable foreign regulatory authorities may also approve generic versions of the corresponding non-deuterated drug. If approved, we expect that our deuterated products will compete against these generic non-deuterated compounds if they are used in the same indications. Even if the approved indications are different for the deuterated and non-deuterated drugs, the generic non-deuterated drug may be used off-label, negatively affecting sales of our product. Efforts to educate the medical community and third-party payors on the benefits of any product that we develop as compared to the corresponding non-deuterated compound, or generic versions of it, may require significant resources and may not be successful. If physicians, rightly or wrongly, do not believe that a product that we, or our collaborators, develop offers substantial advantages over the corresponding non-deuterated compound, or generic versions of the corresponding non-deuterated compound, or that the advantages offered by our product as compared to the corresponding non-deuterated compound, or its generic versions, are not sufficient to merit the increased price over the corresponding non-deuterated compound, or its generic versions, that we, or our collaborators, would seek, physicians might not prescribe that product. In addition, third-party payors may refuse to provide reimbursement for a product that we, or our collaborators, develop when the corresponding non-deuterated compound, or generic versions of the corresponding non-deuterated compound, offer a cheaper alternative therapy in the same indication, or may otherwise encourage use of the corresponding non-deuterated compound, or generic versions of the corresponding non-deuterated compound, over our product, even if our product possesses favorable pharmaceutical properties or is labeled for a different indication.
Competition that our product candidates may face from any generic non-deuterated product on which our product candidate is based or a later-approved generic version of a branded non-deuterated product on which our product is based, could materially and adversely impact our future revenue, profitability and cash flows and substantially limit our ability to obtain a return on the investments we have made in those product candidates.
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Even if we, or our collaborators, are able to commercialize any product candidate that we, or they, develop, the product may become subject to unfavorable pricing regulations, third-party payor reimbursement practices or healthcare reform initiatives that could harm our business.
The commercial success of our product candidates will depend substantially, both domestically and abroad, on the extent to which the costs of our product candidates will be paid by health maintenance, managed care, pharmacy benefit and similar healthcare management organizations or reimbursed by government health administration authorities, private health coverage insurers and other third-party payors. Government authorities and third-party payors, such as private health insurers and health maintenance organizations, decide which medications they will cover and establish reimbursement levels. The healthcare industry is acutely focused on cost containment, both in the United States and elsewhere. Government authorities and third-party payors have attempted to control costs by limiting coverage and the amount of reimbursement for particular medications, which could affect our ability or that of our collaborators to sell our product candidates profitably. These payors may not view our products, if any, as cost-effective, and coverage and reimbursement may not be available to our customers, or those of our collaborators, or may not be sufficient to allow our products, if any, to be marketed on a competitive basis. Cost-control initiatives could cause us, or our collaborators, to decrease the price we, or they, might establish for products, which could result in lower than anticipated product revenues. If reimbursement is not available, or is available only to limited levels, we, or our collaborators, may not be able to successfully commercialize our product candidates. Even if coverage is provided, the approved reimbursement amount may not be high enough to allow us, or our collaborators, to establish or maintain pricing sufficient to realize a sufficient return on our, or their, investments.
There is significant uncertainty related to third-party payor coverage and reimbursement of newly approved drugs. Marketing approvals, pricing and reimbursement for new drug products vary widely from country to country. Some countries require approval of the sale price of a drug before it can be marketed. In many countries, the pricing review period begins after marketing or product licensing approval is granted. In some foreign markets, prescription pharmaceutical pricing remains subject to continuing governmental control even after initial approval is granted. As a result, we, or our collaborators, might obtain marketing approval for a product in a particular country, but then be subject to price regulations that delay commercial launch of the product, possibly for lengthy time periods, which may negatively impact the revenues we are able to generate from the sale of the product in that country. Adverse pricing limitations may hinder our ability, or the ability of our collaborators, to recoup our, or their, investment in one or more product candidates, even if our product candidates obtain marketing approval.
Third-party payor coverage of newly approved drugs may be more limited than the indications for which the drugs are approved by the FDA or comparable foreign regulatory authorities. Moreover, eligibility for reimbursement does not imply that any drug will be paid for in all cases or at a rate that covers our costs, including research, development, manufacture, sale and distribution. Reimbursement rates may vary, by way of example, according to the use of the drug and the clinical setting in which it is used. Reimbursement rates may also be based on reimbursement levels already set for lower cost drugs or may be incorporated into existing payments for other services.
In addition, increasingly, third-party payors are requiring higher levels of evidence of the benefits and clinical outcomes of new technologies, requiring burdensome comparison studies with currently approved drugs and challenging the prices charged. We, and our collaborators, cannot be sure that coverage will be available for any product candidate that we, or they, commercialize and, if available, that the reimbursement rates will be adequate. Further, the net reimbursement for drug products may be subject to additional reductions if there are changes to laws that presently restrict imports of drugs from countries where they may be sold at lower prices than in the United States. An inability to promptly obtain coverage and adequate payment rates from both government-funded and private payors for any product candidates for which we, or our collaborators, obtain marketing approval could have a material adverse effect on our operating results, our ability to raise capital needed to commercialize products and our overall financial condition.
Governments outside the United States tend to impose strict price controls, which may adversely affect our revenues, if any.
In some countries, such as the countries of the European Union, the pricing of prescription pharmaceuticals is subject to governmental control. In these countries, pricing negotiations with governmental authorities can take considerable time after the receipt of marketing approval for a product. To obtain reimbursement or pricing approval in some countries, we, or our collaborators, may be required to conduct a clinical trial that compares the cost-effectiveness of our product to other available therapies. If reimbursement of our products is unavailable or limited in scope or amount, or if pricing is set at unsatisfactory levels, our business could be materially harmed.
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Product liability lawsuits against us could divert our resources, cause us to incur substantial liabilities and limit commercialization of any products that we may develop.
We face an inherent risk of product liability claims as a result of the clinical testing of our product candidates despite obtaining appropriate informed consents from our clinical trial participants. We will face an even greater risk if we, or our collaborators, commercially sell any product that we may, or they may, develop. If we cannot successfully defend ourselves against product liability claims, we may incur substantial liabilities or be required to limit commercialization of our product candidates. Regardless of the merits or eventual outcome, liability claims may result in:
decreased demand for our product candidates or products that we may develop;
injury to our reputation and significant negative media attention;
withdrawal of clinical trial participants;
significant costs to defend litigation;
distraction to our management diverting focus from business operations and strategy;
initiation of investigations by regulators;
product recalls, withdrawals or labeling, marketing or promotional restrictions;
substantial monetary awards to trial participants or patients;
loss of revenue; and
the inability to commercialize any products that we may develop.
Although we maintain product liability insurance coverage, it may not fully cover potential liabilities that we may incur. The cost of any product liability litigation or other proceeding, even if resolved in our favor, could be substantial. We will need to increase our insurance coverage if and when we begin selling any product candidate that receives marketing approval. In addition, insurance coverage is becoming increasingly expensive. If we are unable to obtain or maintain sufficient insurance coverage at an acceptable cost or to otherwise protect against potential product liability claims, it could prevent or inhibit the development and commercial production and sale of our product candidates, which could adversely affect our business, financial condition, results of operations and prospects.
Risks Related to Healthcare Regulations
Recently enacted and future legislation may increase the difficulty and cost for us and our collaborators to obtain marketing approval of and commercialize our product candidates and affect the prices we, or they, may obtain.

In the United States and some foreignother jurisdictions, there have been, and we expect there will continue to be, a number of legislative and regulatory changes and proposed changes regardingto the healthcare system that could prevent or delay marketing approval of our product candidates,


restrict or regulate post-approval activities and affect our ability, orfuture results of operations. In particular, there have been and continue to be a number of initiatives at the abilityU.S. federal and state levels that seek to reduce healthcare costs and improve the quality of our collaborators, to profitably sell any products for which we, or they, obtain marketing approval.
Inhealthcare. Individual states in the United States have also increasingly passed legislation and implemented regulations designed to control pharmaceutical and biological product pricing, including price or patient reimbursement constraints, discounts, restrictions on certain product access and marketing cost disclosure and transparency measures and, in some cases, designed to encourage importation from other countries and bulk purchasing. See the Medicare Prescription Drug, Improvement, and Modernization Act of 2003, or the MMA, changed the way Medicare covers and pays for pharmaceutical products. The legislation expanded Medicare coverage for drug purchases by the elderly and introduced a new reimbursement methodology based on average sales prices for physician administered drugs. In addition, this legislation provided authority for limiting the number of drugs that will be coveredsection entitled “Healthcare Reform” contained in any therapeutic class. Cost reduction initiatives and other provisionsPart I, Item 1. of this legislation could decrease the coverage and price that we receive for any approved products. While the MMA only addresses drug benefits for Medicare beneficiaries, private payors often follow Medicare coverage policy and payment limitations in setting their own reimbursement rates. Therefore, any reduction in reimbursement that results from the MMA may result in a similar reduction in payments from private payors.Annual Report on Form 10-K.
In March 2010, President Obama signed into law the Patient Protection and Affordable Care Act, as amended by the Health Care and Education Affordability Reconciliation Act, or collectively the PPACA.
Among the provisions of the PPACA of potential importance to our product candidates are the following:
an annual, non-deductible fee on any entity that manufactures or imports specified branded prescription drugs and biologic agents;
an increase in the statutory minimum rebates a manufacturer must pay under the Medicaid Drug Rebate Program;
expansion of healthcare fraud and abuse laws, including the False Claims Act and the Anti-Kickback Statute, new government investigative powers and enhanced penalties for noncompliance;
a new Medicare Part D coverage gap discount program, in which manufacturers must agree to offer 50% point-of-sale discounts off negotiated prices;
extension of manufacturers’ Medicaid rebate liability;
expansion of eligibility criteria for Medicaid programs;
expansion of the entities eligible for discounts under the Public Health Service pharmaceutical pricing program new requirements to report financial arrangements with physicians and teaching hospitals;
a new requirement to annually report drug samples that manufacturers and distributors provide to physicians; and
a new Patient-Centered Outcomes Research Institute to oversee, identify priorities in, and conduct comparative clinical effectiveness research, along with funding for such research.
In addition, other legislative changes have been proposed and adopted since the PPACA was enacted. These changes included aggregate reductions to Medicare payments to providers of up to 2% per fiscal year, starting in 2013. In January 2013, President Obama signed into law the American Taxpayer Relief Act of 2012, which, among other things, reduced Medicare payments to several providers and increased the statute of limitations period for the government to recover overpayments to providers from three to five years. These new laws may result in additional reductions in Medicare and other healthcare funding.
Legislative and regulatory proposals have been made to expand post-approval requirements and restrict sales and promotional activities for pharmaceutical products. We cannot be sure whether additional legislative changes will be enacted, or whether the FDA regulations, guidance or interpretations will be changed, or what the impact of such changes on the marketing approvals of our product candidates, if any, may be. In addition, increased scrutiny by the United StatesU.S. Congress of the FDA’s approval process may significantly delay or prevent marketing approval, as well as subject us and our collaborators to more stringent product labeling and post-marketing testing and other requirements.

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We expect that additional state and federal healthcare reform measures will be adopted in the future, any of which could limit the extent to which state and federal governments cover particular healthcare products and services and could limit the amounts that the federal and state governments will pay for healthcare products and services. This could result in reduced demand for any product candidate we develop or could result in additional pricing pressures.

In markets outside of the United States, reimbursement and healthcare payment systems vary significantly by country, and many countries have instituted price ceilings on specific products and therapies. The price control regulations outside of the United States can have a significant impact on the profitability of a given market, and further uncertainty is introduced if and when these laws change.

Our future relationships with customers and third partythird-party payors will be subject to applicable anti-kickback, fraud and abuse and other healthcare laws and regulations, which could expose us to criminal sanctions, civil penalties, contractual damages, reputational harm and diminished profits and future earnings.

Healthcare providers, physicians and third partythird-party payors will play a primary role in the recommendation and prescription of any products for which we obtain marketing approval. Our future arrangements with third partythird-party payors and customers, if any, will subject us to broadly applicable fraud and abuse and other healthcare laws and regulations. The laws and regulations may constrain the business or financial arrangements and relationships through which we market, sell and distribute any products for which we obtain marketing approval. Restrictions under applicable federalSee the sections entitled “Healthcare Reform” and state healthcare laws“Healthcare Law and regulationsRegulation” contained in the U.S. include the following:
Anti-Kickback Statute. The federal healthcare anti-kickback statute prohibits, among other things, persons from knowingly and willfully soliciting, offering, receiving or providing remuneration, directly or indirectly, in cash or in


kind, to induce or reward, or in return for, either the referralPart I, Item 1. of an individual for, or the purchase, order or recommendation or arranging of, any good or service, for which payment may be made under a federal healthcare program such as Medicare and Medicaid;
False Claims Act. The federal False Claims Act imposes criminal and civil penalties, including through civil whistleblower or qui tam actions, against individuals or entities for, among other things, knowingly presenting, or causing to be presented false or fraudulent claims for payment by a federal healthcare program or making a false statement or record material to payment of a false claim or avoiding, decreasing or concealing an obligation to pay money to the federal government, with potential liability including mandatory treble damages and significant per-claim penalties, currently set at $5,500 to $11,000 per false claim;
HIPAA. The federal Health Insurance Portability and Accountability Act of 1996, or HIPAA, imposes criminal and civil liability for executing a scheme to defraud any healthcare benefit program or knowingly and willfully falsifying, concealing or covering up a material fact or making any materially false statement in connection with the delivery of or payment for healthcare benefits, items or services, and, as amended by the Health Information Technology for Economic and Clinical Health Act and its implementing regulations, also imposes obligations, including mandatory contractual terms and technical safeguards, with respect to maintaining the privacy, security and transmission of individually identifiable health information;
Transparency Requirements. Federal laws require applicable manufacturers of covered drugs to report payments and other transfers of value to physicians, other healthcare providers and teaching hospitals, as well as ownership and investment interests held by physicians and other healthcare providers and their immediate family members;
Controlled Substances Act. The CSA regulates the handling of controlled substances such as JZP-386; and
Analogous State and Foreign Laws. Analogous state and foreign fraud and abuse laws and regulations, such as state anti-kickback and false claims laws can apply to sales or marketing arrangements and claims involving healthcare items or services. In addition, some state laws require pharmaceutical companies to comply with the pharmaceutical industry's voluntary compliance guidelines and the relevant compliance guidance promulgated by the federal government in addition to requiring drug manufacturers to report information related to payments to physicians and other health care providers or marketing expenditures and govern the privacy and security of health information in certain circumstances, many of which differ from each other in significant ways and often are not preempted by HIPAA, thus complicating compliance efforts.
this Annual Report on Form 10-K.
Some state laws require pharmaceutical companies to comply with the pharmaceutical industry’s voluntary compliance guidelines and the relevant compliance guidance promulgated by the federal government and require drug manufacturers to report information related to payments and other transfers of value to physicians and other healthcare providers or marketing expenditures. State and foreign laws also govern the privacy and security of health information in some circumstances, many of which differ from each other in significant ways and often are not pre-empted by HIPAA, thus complicating compliance efforts.
Efforts to ensure that our business arrangements with third parties will comply with applicable healthcare laws and regulations will involve substantial costs. It is possible that governmental authorities will conclude that our business practices may not comply with current or future statutes, regulations or case law involving applicable fraud and abuse or other healthcare laws and regulations. If our operations are found to be in violation of any of these laws or any other governmental regulations that may apply to us, we may be subject to significant civil, criminal and administrative penalties, damages, fines, imprisonment, exclusion of products from government funded healthcare programs, such as Medicare and Medicaid and the curtailment or restructuring of our operations. If any of the physicians or other healthcare providers or entities with whom we expect to do business is found to be not in compliance with applicable laws, they may be subject to criminal, civil or administrative sanctions, including exclusions from government funded healthcare programs.
Risks Related to Legal Compliance Matters
If we fail to comply with environmental, health and safety laws and regulations, we could become subject to fines or penalties or incur costs that could have a material adverse effect on our business.
We are subject to numerous environmental, health and safety laws and regulations, including those governing laboratory procedures and the handling, use, storage, treatment and disposal of hazardous materials and wastes. From time to time, our operations may involve the use of hazardous materials, including chemicals and biological materials, and may also produce hazardous waste products. Even if we contract with third parties for the disposal of these materials and waste products, we cannot completely eliminate the risk of contamination or injury resulting from these materials. In the event of contamination or injury resulting from the use or disposal of our hazardous materials, we could be held liable for any resulting damages, and any liability could exceed our resources. We also could incur significant costs associated with civil or criminal fines and penalties for failure to comply with such laws and regulations.
We maintain workers’ compensation insurance to cover us for costs and expenses we may incur due to injuries to our employees resulting from the use of hazardous materials, but this insurance may not provide adequate coverage against


potential liabilities. We do not maintain insurance for environmental liability or toxic tort claims that may be asserted against us.
In addition, we may incur substantial costs in order to comply with current or future environmental, health and safety laws and regulations.regulations, including any laws and regulations that may be imposed as a result of the COVID-19 pandemic. Current or future environmental laws and regulations may impair our research, development or production efforts, which could adversely affect
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our business, financial condition, results of operations or prospects. In addition, failure to comply with these laws and regulations may result in substantial fines, penalties or other sanctions.
Governments outsideThe increasing use of social media platforms presents risks and challenges.
The increasing use of social media platforms presents risks and challenges. Social media increasingly is being used by third parties to communicate about our product candidates and the diseases they are designed to treat. We believe that members of the alopecia areata community may be more active on social media as compared to other patient populations due to the demographics of this patient population. Social media practices in the pharmaceutical and biotechnology industries are evolving, which creates uncertainty and risk of noncompliance with regulations applicable to our business. For example, patients in clinical trials may use social media platforms to comment on the effectiveness of, or adverse experiences with, a product candidate, which could result in reporting obligations. In addition, there is a risk of inappropriate disclosure of sensitive information or negative or inaccurate posts or comments about us on any social networking website. If any of these events were to occur or we otherwise fail to comply with applicable regulations, we could incur liability, face restrictive regulatory actions or incur other harm to our business.
Risks Related to Data Protection and Cybersecurity
Our failure to comply with data protection laws and regulations could lead to government enforcement actions, private litigation and/or adverse publicity and could negatively affect our operating results and business.
We are subject to data protection laws and regulations that address privacy and data security. The legislative and regulatory landscape for data protection continues to evolve, and in recent years there has been an increasing focus on privacy and data security issues. In the United States, tendnumerous federal and state laws and regulations, including state data breach notification laws, state health information privacy laws and federal and state consumer protection laws govern the collection, use, disclosure and protection of health-related and other personal information. Failure to impose strict price controls,comply with data protection laws and regulations could result in government enforcement actions, which may adverselycould include civil or criminal penalties, private litigation and/or adverse publicity and could negatively affect our revenues,operating results and business. In addition, we may obtain health information from third parties that are subject to privacy and security requirements under HIPAA, as amended by the Health Information Technology for Economic and Clinical Health Act. We could be subject to criminal penalties if any.we knowingly obtain or disclose individually identifiable health information in a manner that is not authorized or permitted.
In some countries, such asThe collection and use of personal health data in the countriesEuropean Union is governed by the provisions of the General Data Protection Regulation, or the GDPR, which came into effect in May 2018. This regulation imposes several requirements relating to the consent of the individuals to whom the personal data relates, the information provided to the individuals, notification of data processing obligations to the competent national data protection authorities and the security and confidentiality of the personal data. The GDPR also imposes strict rules on the transfer of personal data out of the European Union to the pricingUnited States. Failure to comply with the requirements of prescription pharmaceuticalsthe GDPR and the related national data protection laws of the European Union Member States may result in significant fines and other administrative penalties.
Significant disruptions of information technology systems or security breaches could adversely affect our business.
We are increasingly dependent upon information technology systems, infrastructure and data to operate our business. In the ordinary course of business, we collect, store and transmit large amounts of confidential information (including, among other things, trade secrets or other intellectual property, proprietary business information and personal information). It is subjectcritical that we do so in a secure manner to governmental control. In these countries, pricing negotiations with governmental authorities can take considerable time aftermaintain the receiptconfidentiality and integrity of marketing approval for a product. To obtain reimbursement or pricing approval in some countries, we, or our collaborators, may be required to conduct a clinical trial that compares the cost-effectivenesssuch confidential information. We also have outsourced elements of our productoperations to other available therapies. If reimbursementthird parties, and as a result we manage a number of third-party vendors who may or could have access to our confidential information. The size and complexity of our products is unavailableinformation technology systems, and those of third-party vendors with whom we contract, and the large amounts of confidential information stored on those systems, make such systems vulnerable to service interruptions or limitedto security breaches from inadvertent or intentional actions by our employees, consultants, third-party vendors, and/or business partners, or from cyber-attacks by malicious third parties. Cyber-attacks are increasing in scopetheir frequency, sophistication and intensity, and have become increasingly difficult to detect. Cyber-attacks could include the deployment of harmful malware, ransomware, denial-of-service attacks, social engineering and other means to affect service reliability and threaten the confidentiality, integrity and availability of information. Cyber-attacks could also include phishing attempts or amount,e-mail fraud to cause payments or if pricing is set at unsatisfactory levels,information to be transmitted to an unintended recipient.
Significant disruptions of our information technology systems, or those of our third-party vendors, or security breaches could adversely affect our business operations and/or result in the loss, misappropriation and/or unauthorized access, use or disclosure of, or the prevention of access to, confidential information, including, among other things, trade secrets or other intellectual
55


property, proprietary business information and personal information, and could result in financial, legal, business and reputational harm to us. For example, any such event that leads to unauthorized access, use or disclosure of personal information, including personal information regarding our patients or employees, could harm our reputation, require us to comply with federal and/or state breach notification laws and foreign law equivalents, and otherwise subject us to liability under laws and regulations that protect the privacy and security of personal information. Security breaches and other inappropriate access can be materially harmed.difficult to detect, and any delay in identifying them may lead to increased harm of the type described above. While we have implemented security measures to protect our information technology systems and infrastructure, there can be no assurance that such measures will prevent service interruptions or security breaches that could adversely affect our business.
RISKS RELATED TO EMPLOYEE MATTERS AND MANAGING GROWTHRisks Related to Employee Matters and Managing Growth
Our future success depends on our ability to retain our Chief Executive Officer and other key executivesemployees and to attract, retain and motivate qualified personnel.
Our industry has experienced a high rate of turnover of management personnel in recent years. Our ability to compete in the highly competitive biotechnology and pharmaceuticals industries depends upon our ability to attract and retain highly qualified managerial, scientific, clinical and medicaldevelopment personnel. We are highly dependent on the pharmaceutical research and development and business development expertise of Roger D. Tung, our President and Chief Executive Officer, as well as the other principal members of our management, scientific and development team.teams. Although we have formal employment agreements with our executive officers, these agreements do not prevent them from terminating their employment with us at any time. In addition, although we maintain a key-man insurance policy with respect to Dr. Tung, we do not carry key-man insurance on any of our other executive officers or employees and may not carry any key-man insurance in the future.
If we lose one or more of our executive officers or other key employees, our ability to implement our business strategy successfully could be seriously harmed. Furthermore, replacing executive officers or other key employees may be difficult and may take an extended period of time because of the limited number of individuals in our industry with the breadth of skills and experience required to develop, gain marketing approval of and commercialize products successfully. Competition to hire from this limited pool is intense, and we may be unable to hire, train, retain or motivate these additional key personnel on acceptable terms given the competition among numerous pharmaceutical and biotechnology companies for similar personnel. We also experience competition for the hiring of scientific, clinical and clinical personnel from universities and research institutions.development personnel. In addition, we rely on consultants and advisors, including scientific and clinical advisors to assist us in formulating our research and development and commercialization strategy. Our consultants and advisors may be employed by employers other than us and may have commitments under consulting or advisory contracts with other entities that may limit their availability to us. If we are unable to continue to attract and retain high quality personnel, our ability to develop and commercialize product candidates will be limited.
We expect to grow our organization and, as a result, we may encounter difficulties in managing our growth, which could disrupt our operations.
As our pipeline grows and matures, we expect to experience significant growth in the number of our employees and the scope of our operations, including in the areas of drug manufacturing, regulatory affairs and sales, clinical development, marketing and distribution. Our management may need to divert a disproportionate amount of its attention away from our day-to-day activities to devote time to managing these growth activities. To manage these growth activities, we must continue to implement and improve our managerial, operational and financial systems, expand our facilities and continue to recruit and train additional qualified personnel. Due to our limited financial resources and the limited experience of our management team in managing a company with such anticipated growth, we may not be able to effectively manage the expansion of our operations or recruit and train additional qualified personnel. Moreover, the expected expansion of our operations may lead to significant costs and may divert our business development resources. Any inability to manage growth could delay the execution of our business plans or disrupt our operations.



RISKS RELATED TO OUR COMMON STOCKRisks Related to an Investment in Our Common Stock
The price of our common stock may be volatile and fluctuate substantially, which could result in substantial losses for purchasers of our common stock.
The trading price of our comment stock has been, and may continue to be, volatile and could be subject to wide fluctuations in response to various factors, some of which are beyond our control. The stock market in general and the market for smaller pharmaceutical and biotechnology companies in particular have experienced extreme volatility that has often been unrelated to the operating performance of particular companies. The market price for our common stock may be influenced by many factors, including:
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the success or failure of existing or new competitive products or technologies;
the timing, advancement of and results of nonclinical studies and clinical trials of any of our product candidates;
commencement or termination of collaborations for our development programs;
failure, delays, changes to or discontinuation of any of our development programs;
regulatory or legal developments in the United States and other countries;
regulatory actions relating to our product candidates;
developments or disputes concerning patent applications, issued patents or other proprietary rights;
the recruitment or departure of key personnel;
disclosures by our collaborators relating to our product candidates or competitive programs;
merger or acquisition activity of our collaborators;
the level of expenses related to any of our product candidates or clinical development programs;
the results of our efforts to develop additional product candidates or products;
actual or anticipated changes in estimates as to financial results, development timelines or recommendations by securities analysts;
announcement or expectation of additional financing efforts;
receipt or expectation of receipt of revenues such as milestones, royalties, grants and license fees;
sales of our common stock by us, our insiders or other stockholders;
programmed trading based on technical stock chart or other inputs;
portfolio restructuring by large shareholders;stockholders or decisions by stockholders to rapidly acquire or sell our shares;
addition or removal of our stock from stock indices;
variations in our financial results or those of companies that are perceived to be similar to us;
changes in estimates or recommendations by securities analysts that cover our stock;
actions by short-sellers or supporters of our stock, including social media postings or reports;
changes in the structure of healthcare payment systems;
market conditions in the pharmaceutical and biotechnology sectors;
legalization or the anticipation of possible legalization of drug reimportation from other countries;
actual or anticipated changes in FDA practices;
general economic, industry and market conditions; and
the other factors described in this “Risk Factors” section.
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An active trading market for our common stock may not be sustained.
Although we have listed our common stock on The NASDAQthe Nasdaq Global Market, an active trading market for our common stock may not be sustained. In the absence of an active trading market for our common stock, investors may not be able to sell their common stock at or above the price at which they acquired their shares or at the times that they would like to sell. An inactive trading market may also impair our ability to raise capital to continue to fund operations by selling shares and may impair our ability to acquire other companies or technologies by using our shares as consideration.
We have broad discretion in the use of our cash reserves and may not use them effectively.
Our management has broad discretion to use our cash reserves and could use our cash reserves in ways that do not improve our results of operations or enhance the value of our common stock. The failure by our management to apply these funds effectively could result in financial losses that could have a material adverse effect on our business, cause the price of our common stock to decline and delay the development of our product candidates. Pending their use, we may invest our cash reserves in a manner that does not produce income or that loses value.



We are an “emerging growtha “smaller reporting company,” and the reduced disclosure requirements applicable to emerging growthsmaller reporting companies may make our common stock less attractive to investors.
We are an “emerging growtha smaller reporting company” as defined in the JOBS Act, and may remain an emerging growth company for up to five years from the date of our initial public offering. under applicable SEC regulations. For so long as we remain an emerging growtha smaller reporting company, we are permitted and plan to rely on exemptions from certain disclosure requirements that are applicable to other public companies, that are not emerging growth companies. These exemptions include not being required to comply with the auditor attestation requirements of Section 404 of the Sarbanes-Oxley Act of 2002, or SOX Section 404, not being required to comply with any requirement that may be adopted by the Public Company Accounting Oversight Board regarding mandatory audit firm rotation or a supplement to the auditor’s report providing additional information about the audit and the financial statements,including reduced disclosure obligations regarding executive compensation and exemptions from the requirements of holding a nonbinding advisory vote on executive compensation and shareholder approval of any golden parachute payments not previously approved.compensation. We cannot predict whether investors will find our common stock less attractive if we rely on these exemptions. If some investors find our common stock less attractive as a result, there may be a less active trading market for our common stock and our stock price may be more volatile.
In addition, the JOBS Act provides that an emerging growth company can take advantage of an extended transition period for complying with new or revised accounting standards. This allows an emerging growth company to delay the adoption of certain accounting standards until those standards would otherwise apply to private companies. We have irrevocably elected not to avail ourselves of this exemption from new or revised accounting standards and, therefore, we are subject to the same new or revised accounting standards as other public companies that are not emerging growth companies.
We will continue to incur increased costssignificant expenses as a result of operating as a public company, and our management will be required to devote substantial time to new compliance initiatives and corporate governance practices.company.
As a public company, we are incurring and expect to continue to incur additional significant legal, accounting and other expenses that we did not incur as a private company. We expect that these expenses will further increase after we are no longer an “emerging growth company.” Theexpenses.
Pursuant to Section 404 of the Sarbanes-Oxley Act of 2002, or SOX, the Dodd-Frank Wall Street Reform and Consumer Protection Act, the listing requirements of The NASDAQ Global Market and other applicable securities rules and regulations impose various requirements on public companies, including establishment and maintenance of effective disclosure and financial controls and corporate governance practices. We expect that we will need to hire additional personnel to comply with the requirements of being a public company, and our management and other personnel will need to devote a substantial amount of time towards maintaining compliance with these requirements. These rules and regulations are often subject to varying interpretations, in many cases due to their lack of specificity, and, as a result, their application in practice may evolve over time as new guidance is provided by regulatory and governing bodies. This could result in continuing uncertainty regarding compliance matters and higher costs necessitated by ongoing revisions to disclosure and governance practices.
Pursuant to SOX Section 404 we are required to evaluate the effectiveness of our internal control over financial reporting as of the end of each fiscal year and to report on this evaluation in our Annual Report on Form 10-K for the year. However, while we remain an emerging growth company, we will not be required to include an attestation report on internal control over financial reporting issued by our independent registered public accounting firm. We will need to continue to dedicate internal resources, potentially engage outside consultants and adoptmaintain a detailed work plan to assess and document the adequacy of our internal control over financial reporting, continue steps to improve control processes as appropriate, validate through testing that controls are functioning as documented and implementmaintain a continuous reporting and improvement process for internal control over financial reporting. Despite our efforts, there is a risk that in the future we will not be able to conclude that our internal control over financial reporting is effective as required by SOX Section 404. If we identify one or more material weaknesses, it could result in an adverse reaction in the financial markets due to a loss of confidence in the reliability of our financial statements.
A significant portion of our total outstanding shares may be sold into the market in the near future, which could cause the market price of our common stock to decline significantly, even if our business is doing well.
Sales of a substantial number of shares of our common stock in the public market could occur at any time. These sales, or the perception in the market that the holders of a large number of shares of common stock intend to sell shares, could reduce the market price of our common stock.
In addition, as of February 26, 2018,28, 2022, there were 4,085,209were:
6,495,214 shares of common stock subject to outstanding options and restricted stock units, or RSUs, under our equity compensation plans, all of which shares we haveare registered under the Securities Act on a registration statement on Form S-8.of 1933, as amended, or the Securities Act. These shares of common stock will be able to be freely sold in the public market upon exercise, as permitted by any applicable vesting requirements, except to the extent they are held by our affiliates, in which case such shares will become eligible for sale in the


public market as permitted by Rule 144 under the Securities Act. Furthermore, asAct;
13,997 shares of February 26, 2018, there were 132,069Series X1 Preferred Stock issued and outstanding, which are convertible into 13,997,000 shares of common stock. The Series X1 Preferred Stock is equivalent to common stock in all respects except that it is non-voting and is convertible into common stock at the holders election, subject to an beneficial ownership limitations. The shares of Series X1 Preferred Stock and the shares of common stock issuable upon conversion of the Series X1 Preferred Stock are registered under the Securities Act;
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outstanding warrantwarrants to purchase 16,250 shares of Series X1 Preferred Stock, which, upon exercise, are convertible into 16,250,000 shares of common stock. Thesestock; and
outstanding warrants to purchase 1,861,273 shares of common stock, 1,800,000 shares of which are registered under the Securities Act. The remaining 61,273 shares will become eligible for sale in the public market, to the extent such warrant is exercised, as permitted by Rule 144 under the Securities Act. Moreover, holders of a substantial portion of our outstanding common stock have rights, subject to conditions, to require us to file registration statements covering their shares or, along with the holder of our outstanding warrant to purchase common stock, to include their shares in registration statements that we may file for ourselves or other stockholders.
We do not anticipate paying any cash dividends on our capital stock in the foreseeable future, accordingly, stockholders must rely on capital appreciation, if any, for any return on their investment.
We have never declared or paid cash dividends on our capital stock. We currently plan to retain all of our future earnings, if any, to finance the operation, development and growth of our business. Furthermore, any future debt agreements may preclude us from paying dividends. As a result, capital appreciation, if any, of our common stock will be the sole source of gain for our stockholders for the foreseeable future.
Our executive officers, directors and principal stockholders, if they choose to act together, have the ability to substantially influence all matters submitted to stockholders for approval.
As of December 31, 2017, ourOur executive officers and directors, combined with our stockholders who ownedown more than 5% of our outstanding common stock, and all affiliates, in the aggregate, beneficially owned shares representing approximately 38.5%own a substantial percentage of our capital stock. As a result, if these stockholders were to choose to act together, they would be able to substantially influence all matters submitted to our stockholders for approval, as well as our management and affairs. For example, these persons, if they choose to act together, would substantially influence the election of directors and approval of any merger, consolidation or sale of all or substantially all of our assets. This concentration of ownership control may:
delay, defer or prevent a change in control;
entrench our management or the board of directors; or
impede a merger, consolidation, takeover or other business combination involving us that other stockholders may desire.

Future sales of a substantial number of our common shares by our principal stockholders could depress the trading price of our common stock.

If our principal stockholders sell substantial amounts of shares of our common stock in the public market or if the market anticipates that these sales could occur, the market price of shares of our common stock could decline. These sales may make it more difficult for us to sell equity or equity-related securities in the future at a time and price that we deem appropriate, or to use equity as consideration for future acquisitions.
If securities or industry analysts do not publish research or publish inaccurate or unfavorable research about our business, our share price and trading volume could decline.
The trading market for our common stock depends on the research and reports that securities or industry analysts publish about us or our business. We do not have any control over these analysts. There can be no assurance that analysts will cover us, or provide favorable coverage. If one or more analysts downgrade our stock or change their opinion of our stock, our share price may decline. In addition, if one or more analysts cease coverage of our company or fail to regularly publish reports on us, we could lose visibility in the financial markets, which could cause our share price or trading volume to decline.
Risks Related to Our Charter and By-Laws
Provisions in our corporate charter documents and under Delaware law could make an acquisition of us, which may be beneficial to our stockholders, more difficult and may prevent attempts by our stockholders to replace or remove our current management.
Provisions in our corporate charter and our bylawsby-laws may discourage, delay or prevent a merger, acquisition or other change in control of us that stockholders may consider favorable, including transactions in which our stockholders might otherwise receive a premium for their shares. These provisions could also limit the price that investors might be willing to pay in the future for shares of our common stock, thereby depressing the market price of our common stock. In addition, because our
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board of directors is responsible for appointing the members of our management team, these provisions may frustrate or prevent any attempts by our stockholders to replace or remove our current management by making it more difficult for stockholders to replace members of our board of directors. Among other things, these provisions:
establish a classified board of directors such that all members of the board of directors are not elected at one time;
allow the authorized number of our directors to be changed only by resolution of our board of directors;
limit the manner in which stockholders can remove directors from the board;
establish advance notice requirements for nominations for election to the board of directors or for proposing matters that can be acted on at stockholder meetings;
require that stockholder actions must be effected at a duly called stockholder meeting and prohibit actions by our stockholders by written consent;
limit who may call a special meeting of stockholders;


authorize our board of directors to issue preferred stock without stockholder approval, which could be used to institute a “poison pill” that would work to dilute the stock ownership of a potential hostile acquirer, effectively preventing acquisitions that have not been approved by our board of directors; and
require the approval of the holders of at least 75% of the votes that all our stockholders would be entitled to cast to amend or repeal certain provisions of our charter or bylaws.

by-laws.
Moreover, because we are incorporated in Delaware, we are governed by the provisions of Section 203 of the Delaware General Corporation Law, which prohibits a person who owns in excess of 15% of our outstanding voting stock from merging or combining with us for a period of three years after the date of the transaction in which the person acquired in excess of 15% of our outstanding voting stock, unless the merger or combination is approved in a prescribed manner. This could discourage, delay or prevent someone from acquiring us or merging with us, whether or not it is desired by, or beneficial to, our stockholders.
If securitiesOur by-laws designate specific courts as the exclusive forum for certain litigation that may be initiated by our stockholders, which could limit our stockholders’ ability to obtain a favorable judicial forum for disputes with us.
Pursuant to our by-laws, unless we consent in writing to the selection of an alternative forum, the Court of Chancery of the State of Delaware will be the sole and exclusive forum for state law claims for (i) any derivative action or industry analysts do not publish researchproceeding brought on our behalf, (ii) any action asserting a claim of breach of or publish inaccuratebased on a fiduciary duty owed by any of our current or unfavorable research about our business, our share price and trading volume could decline.
The trading market for our common stock depends on the research and reports that securitiesformer directors, officers or industry analysts publish aboutother employees to us or our business. We do notstockholders, (iii) any action asserting a claim arising pursuant to any provision of the Delaware General Corporation Law or our charter or by-laws, (iv) any action to interpret, apply, enforce or determine the validity of our charter or by-laws or (v) any action asserting a claim governed by the internal affairs doctrine of the State of Delaware. In addition, pursuant to our by-laws, unless we consent in writing to the selection of an alternative forum, the federal district courts of the United States will be the sole and exclusive forum for resolving any complaint asserting a cause of action arising under the Securities Act. These forum selection clauses in our by-laws may limit our stockholders’ ability to obtain a favorable judicial forum for disputes with us.
Risks Related to Income Taxes
Changes in tax law could adversely affect our business and financial condition or holders of our common stock.
The rules dealing with U.S. federal, state and local income taxation are constantly under review by persons involved in the legislative process and by the Internal Revenue Service, or IRS, and Treasury Department. Changes to tax laws (which changes may have any control over these analysts. There can be no assurance that analysts will coverretroactive application) could adversely affect us or provide favorable coverage. If one or more analysts downgrade our stock or change their opinionholders of our stock, our share price may decline.common stock. In addition, if one or more analysts cease coverage of our Company or failrecent years, many such changes have been made and changes are likely to regularly publish reports on us, we could lose visibilitycontinue to occur in the financial markets, which could cause our share price or trading volume to decline.
RISKS RELATED TO ASSET SALE

The asset purchase agreement exposes us to contingent liabilities thatfuture. Future changes in tax laws could have a material adverse effect on our business, cash flow, financial condition.
We have agreed to indemnify Vertex for damages resulting fromcondition or arising out of any inaccuracy or breach of our representations, warranties or covenants in the asset purchase agreement, any and all of our liabilities not assumed by Vertex in the asset sale and for certain other matters. Significant indemnification claims by Vertex could have a material adverse effect on our financial condition. In the event that claims for indemnification exceed certain thresholds set forth in the asset purchase agreement, we will be obligated to indemnify Vertex for any damages or loss resulting from such breach for up to $16 million, or in some cases, the entire purchase price paid to us by Vertex, including any milestone payments. Any event that results in a right for Vertex to seek indemnity from us could result in a substantial payment from us to Vertex and could adversely affect our results of operations. We urge stockholders to consult with their legal and tax advisers regarding the implications of potential changes in tax laws on an investment in our common stock.

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ITEM 1B. Unresolved Staff Comments
NoneNone.
ITEM 2. Properties
We lease our principal facilities, which consist of approximately 50,000 square feet of office, research and laboratory space located at 99 Hayden Avenue, Lexington, Massachusetts. The leases covering this space expire on September 30, 2018.
In December 2017, we entered into an agreement to lease approximately 55,50056,000 square feet of office and laboratory space in a new locationlocated at 65 Hayden Avenue, Lexington, Massachusetts. We expect to relocate offices in the third quarter of 2018.The lease expires on January 1, 2029. We believe that the newour facilities are sufficient for our current needs for the foreseeable future.

ITEM 3. Legal ProceedingsProceedings
In April 2018, the PTAB instituted an IPR brought against the '149 patent by Incyte. In April 2019, the PTAB issued a final written decision in connection with the IPR that held that the claims of the '149 patent were unpatentable as obvious. In January 2020, the Federal Circuit granted our motion to vacate and remand the PTAB final written decision in light of the Federal Circuit ruling on the Constitution’s Appointments Clause in Arthrex, Inc. v. Smith & Nephew, Inc. The PTO Director sought review of both Arthrex and the decision in our case in the Supreme Court. In June 2021, the Supreme Court decided that the remedy for a violation of the Appointments Clause should not be a hearing before a new panel of PTAB judges, but a remand to the PTO to allow the Director to consider whether to modify the decision of the PTAB. The Supreme Court remanded our case to the Federal Circuit in light of Arthrex, and the Federal Circuit granted our request for a remand to the PTO Director. We are not currentlyfiled a partyrequest to have the PTO Director review the final written decision; however, that request was denied in January 2022. As a result, we intend to proceed with our appeal to the Federal Circuit. The '149 patent remains valid and enforceable until any material legal proceedings.appeals by us have been exhausted.

ITEM 4. Mine Safety Disclosures
Not applicable.




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Part II

ITEM 5.Market for Registrant’s Common Equity, Related Stockholder Matters and IssuersIssuer Purchases of Equity Securities
MARKET INFORMATION
Our common stock has been publicly traded on the NASDAQNasdaq Global Market under the symbol “CNCE” since February 13, 2014. Prior to that time, there was no public market for our common stock. Set forth below is the quarterly information with respect to the high and low prices for our common stock for the most recent fiscal year.
  High Low
Year Ended December 31, 2017    
First Quarter $18.43
 $8.85
Second Quarter 16.95
 12.01
Third Quarter 16.10
 13.28
Fourth Quarter 29.05
 13.96
Year Ended December 31, 2016    
First Quarter $19.69
 $12.16
Second Quarter 15.53
 9.80
Third Quarter 12.28
 9.47
Fourth Quarter 10.53
 7.11
HOLDERS
As of January 31, 2018,February 28, 2022, there were 1712 holders of record of our common stock. This number does not include beneficial owners whose shares are held by nominees in street name.

DIVIDENDS
We have never declared or paid any cash dividends on our capital stock. We currently intend to retain all of our future earnings, if any, to finance the growth and development of our business. We do not intend to pay any cash dividends to the holders of our common stock in the foreseeable future.
PERFORMANCE GRAPHEQUITY COMPENSATION PLANS
The following performance graph and related information shall not be deemed to be “soliciting material” or to be “filed” with the SEC for purposesrequired by Item 5 of Section 18 of the Securities Exchange Act of 1934, as amended, or the Exchange Act, or otherwise subject to the liabilities under that Section, nor shall such information beForm 10-K regarding equity compensation plans is incorporated herein by reference into any future filing under the Exchange Act or the Securities Actto Part III, Item 12. of 1933, as amended, or the Securities Act, except to the extent that we specifically incorporate it by reference into such filing.
The following graph compares the performance of our common stock to The NASDAQ Composite Index and to The NASDAQ Biotechnology Index from February 13, 2014 (the first date that shares of our common stock were publicly traded) through December 31, 2017. The comparison assumes $100 was invested after the market closed on February 13, 2014 in our common stock and in each of the foregoing indices, and it assumes reinvestment of dividends, if any. The stock price performance included in this graph is not necessarily indicative of future stock price performance.



PURCHASE OF EQUITY SECURITIES
We did not purchase any of our registered equity securities during the period covered by this Annual Report on Form 10-K.


ITEM 6.Selected Financial Data[Reserved]
The following tables set forth our selected consolidated financial data and have been derived from our audited consolidated financial statements. You should read the following selected consolidated financial data together with our consolidated financial statements and accompanying notes appearing elsewhere in this Annual Report on Form 10-K and the “Management’s Discussion and Analysis of Financial Condition and Results of Operations” section of this Annual Report on Form 10-K. Our historical results for any prior period are not necessarily indicative of the results that may be expected in any future period.
Not applicable.
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  Years ended December 31,
(in thousands, except per share data) 2017 2016 2015 2014 2013
Results of Operations          
Total revenue $143,891
 $174
 $66,729
 $8,576
 $25,408
Operating expenses:          
Research and development $30,223
 $36,983
 $28,885
 $27,474
 $21,790
General and administrative 21,019
 14,358
 13,056
 11,700
 8,028
Total operating expenses 51,242
 51,341
 41,941
 39,174
 29,818
Income (Loss) from operations 92,649
 (51,167) 24,788
 (30,598) (4,410)
Interest and other income (expense), net 2,690
 447
 (185) (1,101) (1,646)
(Benefit) Provision for income taxes (300) 
 429
 
 
Net income (loss) $95,639
 $(50,720) $24,174
 $(31,699) $(6,056)
Net income (loss) applicable to common stockholders - basic $95,195
 $(50,720)
$24,174
 $(31,754) $(6,452)
Net income (loss) applicable to common stockholders - diluted $95,210
 $(50,720) $24,174
 $(31,754) $(6,452)
Earnings Per Share          
Net income (loss) per share applicable to common stockholders - basic $4.20
 $(2.28) $1.14
 $(2.00) $(4.99)
Net income (loss) per share applicable to common stockholders - diluted $4.06
 $(2.28) $1.09
 $(2.00) $(4.99)
Weighted-average number of common shares used in net income (loss) per share applicable to common stockholders - basic 22,641
 22,233
 21,152
 15,842
 1,292
Weighted-average number of common shares used in net income (loss) per share applicable to common stockholders - diluted 23,442
 22,233
 22,267
 15,842
 1,292
Financial Condition          
Cash and cash equivalents $27,665
 $40,555
 $92,510
 $13,396
 $9,638
Investments, available for sale 175,500
 55,630
 49,680
 65,836
 23,039
Working capital 199,289
 92,159
 137,481
 63,102
 18,128
Total assets 211,736
 100,395
 146,932
 84,454
 39,773
Deferred revenue 10,301
 10,050
 10,170
 15,821
 19,631
Loan payable, net of discount 
 
 
 7,101
 14,919
Redeemable convertible preferred stock 
 
 
 
 112,244
Total stockholders’ equity (deficit) 196,432
 85,594
 130,635
 54,825
 (112,104)




ITEM 7.Management’s Discussion and Analysis of Financial Condition and Results of Operations
You should read the following discussion and analysis of our financial condition and results of operations together with our consolidated financial statements and the related notes appearing elsewhere in this Annual Report on Form 10-K. Some of the information contained in this discussion and analysis or set forth elsewhere in this report, including information with respect to our plans and strategy for our business and related financing, includes forward-looking statements that involve significant risks and uncertainties. You should read the “Risk Factors” section in Part 1—I, Item 1A. of this reportAnnual Report on Form 10-K for a discussion of important factors that could cause our actual results to differ materially from the results described in or implied by the forward-looking statements contained in the following discussion and analysis.
OVERVIEW

We are a late-stage clinical stage biopharmaceutical company applyingthat is developing CTP-543, a JAK 1/2 inhibitor that we discovered through the application of our extensive knowledge of deuterium chemistry to discover and develop novel small molecule drugs. Selective incorporation of deuterium into known molecules has the potential, on a case-by-case basis, to provide better pharmacokinetic or metabolic properties, thereby enhancing their clinical safety, tolerability or efficacy. Our approach typically starts with previously studied compounds, including approved drugs, which we believe may be improved with deuterium substitution. Our technology provides the opportunity to develop products that may compete with the non-deuterated drug in existing markets or to leverage its known activity to expand into new indications. Our deuterated chemical entity platform, or DCE Platform®, has broad potential across numerous therapeutic areas.Platform. As discussed in detail in the “Business” section in Part I, Item 1 above,1. of this Annual Report on Form 10-K, we haveare evaluating CTP-543 in a robust pipelinePhase 3 clinical program for the treatment of wholly owned and collaboration programs.alopecia areata, a serious autoimmune dermatological condition. If these trials are successful, we intend to file an NDA with the FDA in the first half of 2023. There are currently no FDA-approved treatments for alopecia areata.
Since our inception in 2006, we have devoted substantially all of our resources to our research and development efforts, including activities to develop our deuterated chemical entity platform, or DCE Platform, and our core capabilities in deuterium chemistry, identify potential product candidates, undertake nonclinical studies and clinical trials, manufacture clinical trial material in compliance with current good manufacturing practices,cGMPs, provide general and administrative support for these operations and establish our intellectual property. We have generated an accumulated deficit of $76.2$349.5 million since inception through December 31, 20172021 and will require substantial additional capital to fund our research and development.development activities. We do not have any products approved for sale and have not generated any revenue from product sales.
We have fundedfinanced our operations to date primarily through the public offering and private placement of our equity, debt financing, and funding from collaborations and patent assignments, asset sales and other arrangements. In March 2015,February 2014, we completed our initial public offering, whereby we sold 3,300,0006,649,690 shares of common stock at a price to the public of $14.00 per share, raising aggregate net proceeds of $83.1 million. In March 2015, we sold 3,300,000 shares of common stock through an underwritten public offering at a price to the public of $15.15 per share, resulting inraising aggregate net proceeds to us of $46.7 million, after deductingmillion. In January 2020, we sold 5,735,283 shares of common stock through an underwritten public offering at a price to the underwriting discounts, commissions and offering-related transaction costs.public of $9.92 per share. At the same time, we sold to a certain existing investor pre-funded warrants to purchase up to an aggregate of 1,800,000 shares of common stock at a purchase price of $9.919 per pre-funded warrant, which represents the per share public offering price for the common stock less the $0.001 per share exercise price for each pre-funded warrant. The aggregate net proceeds from the January 2020 offering, or the 2020 Financing, were $70.1 million.

On March 3,In July 2017, we entered into an Asset Purchase Agreement (the "Asset Purchase Agreement") with Vertex Pharmaceuticals, Inc., through Vertex Pharmaceuticals (Europe) Limited ("Vertex"), pursuantcompleted the sale of worldwide development and commercialization rights to which we agreed to sell and assign CTP-656, now known as VX-561, and other assets related to the treatment of cystic fibrosis assetsto Vertex pursuant to the Vertex Agreement. We received $160.0 million in cash upon closing, with $16.0 million initially held in escrow, which was released to us in February 2019. Pursuant to the Vertex Agreement, if VX-561 was approved as part of a combination regimen to treat cystic fibrosis, we were eligible to receive up to $90.0 million in the form of two additional milestones based on marketing approval in the United States and agreement for reimbursement in the first of the Company, for upUnited Kingdom, Germany or France. In May 2021, we entered into the Vertex Amendment, pursuant to $250 million subject to the satisfaction of certain closing conditions. On July 25, 2017, the Asset Purchase Agreement closed andwhich Vertex paid us $160$32.0 million in cash consideration, with $16 millionin exchange for the removal of the Milestone Obligation. As a result of the Vertex Amendment, we are not entitled to be held in escrow until January 2019.receive any further payments pursuant to the Vertex Agreement. Additional information concerning the sale of CTP-656 is discussed further in Note 14 in12 to the consolidated financial statements and Item 1A., each appearing elsewhere in this Annual Report on Form 10-K.

In March 2019, we entered into an Open Market Sale Agreement, or the ATM Agreement, with Jefferies LLC, or Jefferies. As of December 31, 2021, we had sold 2,209,687 shares of our common stock pursuant to the ATM Agreement for aggregate net proceeds of $25.2 million, after payment of cash commissions of 3.0% of the gross proceeds to Jefferies.
In November 2021, we closed a financing, or the 2021 Financing, raising $64.4 million in aggregate net proceeds. The Company's2021 Financing consisted of the sale of (i) 13,997 shares of Series X1 Preferred Stock, (ii) 2,253,000 shares of common stock, (iii) warrants to purchase up to 16,250 shares of Series X1 Preferred Stock and (iv) a portion of our right to receive potential future AVP-786 royalties under the Avanir Agreement. If the warrants issued in connection with the 2021 Financing are exercised in full, we would receive additional gross proceeds of $103.1 million.
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Our operating results may fluctuate significantly from year to year, depending on the timing and magnitude of cash payments received pursuant to collaboration and licensing arrangements and other agreements and the timing and magnitude of clinical trial and other development activities under our current development programs. We generated net incomelosses of $95.6$80.1 million and $74.8 million for the yearyears ended December 31, 2017, a net loss of $50.7 million for the year ended December 31, 2016,2021 and net income of $24.2 million for the year ended December 31, 2015. The net income generated during the year ended December 31, 2017 was primarily the result of the Asset Purchase Agreement with Vertex, discussed above and in further detail in Note 14 in the consolidated financial statements appearing elsewhere in this Annual Report on Form 10-K. The net income generated during the year ended December 31, 2015 was primarily the result of a $50.2 million one-time payment from Auspex Pharmaceuticals, Inc., or Auspex, as discussed further in Note 13 in the consolidated financial statements.2020, respectively.
We expect to continue to incur significant expenses and increasing operating losses for at least the next several years. We expect our expenses will increase substantially in connection with our ongoing activities as we continue research and development efforts, and develop and conduct additional nonclinical studies and clinical trials with respect toand seek marketing approval for our product candidates.
We do not expect to generate revenue from product sales unless and until we, or our collaborators, obtain marketing approval for one or more of our product candidates, which we expect will take a number of years and is subject to significant uncertainty. If we obtain, or believe that we are likely to obtain, marketing approval for any product candidates for which we retain


commercialization rights, and intend to commercialize a product, we expect to incur significant commercialization expenses related to product sales, marketing, manufacturing and distribution. We expect to seek to fund our operations through a combination of equity offerings, debt financings, additional collaborationscollaboration and licensing arrangements and other sources for at least the next several years. However, we may be unable to raise additional funds or enter into such other arrangements when needed on favorable terms or at all. Our failure to raise capital or enter into such other arrangements as and when needed would force us to delay, limit, reduce or terminate our research and development programs and could have a material adverse effect on our financial condition and our ability to develop our products. We will need to generate significant revenues to achieve sustained profitability, and we may never do so.

COLLABORATIONS

We have entered into a number of collaborations for the research, development and commercialization of deuterated compounds. To date, our collaborations have provided us with significant funding for both our specificresearch and development programs and our DCE Platform.programs. Our collaborators also have applied their considerable scientific, development, regulatory and commercial capabilities to the development of our compounds. In addition, in some instances, where we develop and seek to collaborate with respect to deuterated analogs of marketed drugs or of drug candidates that are more advanced in clinical trials, our collaborators may be eligible for an expedited development or regulatory pathway by relying on previous clinical data regarding their corresponding non-deuterated compound. We believe that our collaborations have contributed to our ability to progress our product candidates and build our DCE Platform. We have established the following keycandidates.
Our collaborations which are discussed further in Note 12 into the consolidated financial statements appearing elsewhere in this Annual Report on Form 10-K.
AvanirASSET PURCHASE AGREEMENT
In February 2012,July 2017, we entered into acompleted the sale of worldwide development and license agreement with Avanir under which we granted Avanir an exclusive worldwide licensecommercialization rights to develop, manufactureCTP-656, now known as VX-561, and commercialize deuterated dextromethorphan analogs, including d6-dextromethorphan, or deudextromethorphan. Avanir is currently focused on developing AVP-786, which is a combination of deudextromethorphan and an ultra- low dose of quinidine, forother assets related to the treatment of neurologic and psychiatric disorders. In January 2015, Avanir was acquired by Otsuka Pharmaceutical Co., Ltd. and it is now a wholly owned subsidiary of Otsuka America, Inc.
Under the agreement, we received a non-refundable upfront payment of $2.0 million and have received milestone payments of $6.0 million. We have the potentialcystic fibrosis to earn up to $162.0 million in additional development, regulatory and sales-based milestone payments, of which $21.5 million in development and regulatory milestone payments are associated with the first indication. The next anticipated milestone payments that we may be entitled to receive are $5.0 million upon acceptance for filing of a NDA, $3.0 million upon acceptance for filing of a MAA, and $1.5 million upon acceptance for filing of a NDA by the Ministry of Health, Labour, and Welfare, or MHLW, related to AVP-786. Avanir also is required to pay us royalties at defined percentages ranging from the mid-single digits to low double digits below 20% on net sales of licensed products on a country-by-country basis.
Celgene
In April 2013, we entered into a master development and license agreement with Celgene, which is primarily focused on the research, development and commercialization of specified deuterated compounds targeting inflammation or cancer. While the collaboration has the potential to encompass multiple programs, it is initially focused on one program, CTP-730, which is deuterated apremilast.
We were responsible for conducting and funding research and early development activities for the CTP-730 program pursuant to mutually agreed upon development plans. This included the completion of single and multiple ascending dose Phase 1 clinical trials. Celgene is responsible for any development of CTP-730 beyond the completed Phase 1 clinical trials. If Celgene exercises its rights with respect to any additional program and pays us the applicable exercise fee, we are responsible for conducting research and development activities at our own expense pursuant to mutually agreed upon development plans until the completion of the first Phase 1 clinical trial, which will be defined in each development plan on a program-by-program basis. In addition, if Celgene exercises its rights with respect to the option program and pays us the applicable exercise fee, we are responsible for seeking to generate a deuterated compound for clinical development in the selected option program at our own expense.
Under the agreement, we received a non-refundable upfront payment of $35.0 million and received an $8.0 million development milestone in October 2015 upon completion of clinical evaluation for CTP-730. In addition, we have the potential to earn up to $312.5 million in additional development, regulatory and sales-based milestone payments with respect to


CTP-730. The next milestone that we may be entitled to receive is $15.0 million upon the first dosing in a Phase 3 clinical trial or, if earlier, acceptance for filing a new drug application, or NDA, related to CTP-730. If Celgene exercises its rights under any additional program, we may be eligible for milestone payments for each additional program. In addition, with respect to each program, Celgene is required to pay us royalties on worldwide net sales of each licensed product at defined percentages ranging from the mid-single digits to low double digits below 20%.
Jazz Pharmaceuticals
In February 2013, we entered into a development and license agreement with Jazz Pharmaceuticals to research, develop and commercialize products containing a deuterated sodium oxybate analog, or D-SXB. Jazz Pharmaceuticals is initially focused on developing one analog, designated as JZP-386 for the treatment of narcolepsy. Under the terms of the agreement, we granted Jazz Pharmaceuticals an exclusive, worldwide, royalty-bearing license under intellectual property controlled by us to develop, manufacture and commercialize D-SXB products including, but not limited to, JZP-386.
We, together with Jazz Pharmaceuticals, have conducted certain development activities for Phase 1 clinical trials with respect to JZP-386 pursuant to an agreed upon development plan. We were responsible under the development plan for conducting the Phase 1 clinical trials with respect to JZP-386. Thereafter, our obligations to conduct further development activities are subject to mutual agreement. Jazz Pharmaceuticals has assumed all manufacturing and development responsibilities relating to JZP-386.
Under the agreement, we received a non-refundable upfront payment of $4.0 million and are eligible to earn an aggregate of up to $113.0 million in development, regulatory and sales-based milestone payments. The next milestone payment that we may be entitled to receive is $4.0 million related to initiation of the first Phase 2 clinical trial of JZP-386. In addition, Jazz Pharmaceuticals is required to pay us royalties at defined percentages ranging from the mid-single digits to low double digits below 20% on worldwide net sales of licensed products.
ASSET PURCHASE AGREEMENT

On March 3, 2017, we entered into an Asset Purchase Agreement with Vertex pursuant to which we sold and assigned CTP-656 and other cystic fibrosis assets of the Company to Vertex. On July 25, 2017, the transaction contemplated by the Asset Purchase Agreement closed, and Vertex paid us $160Agreement. We received $160.0 million in cash considerationupon closing, with $16$16.0 million to beinitially held in escrow, as describedwhich was released to us in Note 14 in the consolidated financial statements appearing elsewhere in this Annual Report on Form 10-K.

February 2019. Additionally, upon the achievement of certain milestone events, Vertex has agreed to pay us an aggregate of up to $90$90.0 million. Of this amount, $50$50.0 million willwould have become payable to us upon receipt of FDA marketing approval for a combination treatment regimen containing CTP-656, now known as VX-561 for patients with cystic fibrosis, and $40$40.0 million willwould have become payable to us upon completion of a pricing and reimbursement agreement in the first of the United Kingdom, Germany or France with respect to a combination treatment regimen containing CTP-656VX-561 for patients with cystic fibrosis.

PATENT ASSIGNMENT AGREEMENT
In September 2011,May 2021, we entered into a patent assignment agreement with Auspex Pharmaceuticals, Inc., or Auspex,the Vertex Amendment, pursuant to which Vertex paid us $32.0 million in cash in exchange for the removal of the Milestone Obligation. As a result of the Vertex Amendment, we assignedare not entitled to Auspex a U.S. patent application relatingreceive any further payments pursuant to deuterated pirfenidone analogs as describedthe Vertex Agreement. Additional information concerning the sale of CTP-656 is discussed in Note 13 in12 to the consolidated financial statements appearing elsewhere in this Annual Report on Form 10-K. Among other things,
COVID-19 PANDEMIC
The COVID-19 pandemic continues to evolve. We could be materially and adversely affected by the patent assignment agreement provides that if Auspex is acquired in a change in control transaction at any time while it,risks, or anythe public perception of its affiliates, own certain patents or patent applicationsthe risks, related to deuterated pirfenidone, we will receive within a specified period followingan epidemic, pandemic or other public health crisis, such as the closingCOVID-19 pandemic, including but not limited to potential delays in our clinical trials. The ultimate extent of the transaction 1.44%impact of any proceeds payable as consideration forepidemic, pandemic or other public health crisis on our business, financial condition and results of operations will depend on future developments,
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which are highly uncertain and subject to change and will depend on future developments, which cannot be accurately predicted, including the change in control transaction, including any amounts paid to stockholders and certain equity holdersduration of Auspex. Any such change in control payment to us is credited to Auspex as a deduction against certain future paymentsthe pandemic, additional or modified government actions, variants or new information that may become due underemerge concerning the agreement, such that Auspex will not be required to make further payments to us until the aggregate amountseverity of such payments otherwise due exceedsepidemic, pandemic or other public health, among others. Accordingly, we cannot predict the amountextent to which our business, financial condition and results of operations may be affected by the change in control payment.
Pursuant toCOVID-19 pandemic, but we are monitoring the agreement, we became eligible to receive a one-time payment of $50.2 million, which was received in June 2015, due to Teva Pharmaceutical Industries Ltd.’s acquisition of Auspex in May 2015.


situation closely.
FINANCIAL OPERATIONS OVERVIEW
Revenue
We have not generated any revenue from the sales of products. All of our revenue to date has been generated through collaboration, license and research arrangements with collaborators and nonprofit organizations for the development and commercialization of product candidates, a patent assignment agreement and an asset sale.sales.
The terms of these agreements may include one or more of the following types of payments: non-refundable license fees, payments for research and development activities, payments based uponon the achievement of specified milestones, payment of license exercise or option fees relating to product candidates and royalties on any net product sales. To date, we have received non-refundable upfront payments, several milestone payments, payments for research and development services provided to our collaborators, a change in control payment pursuant to a patent assignment agreement and a paymentpayments for the sale of an asset.assets. However, we have not yet earned any license exercise or option fees, sales-based milestone payments or royalty revenue as a result of product sales.
In the future, we will seek to generate revenue from a combination of product sales and milestone payments and royalties on product sales in connection with our current collaborations with Avanir, Celgene, and Jazz Pharmaceuticals, our asset sale with Vertex, or other collaborations we may enter into.
Research and development expenses
Research and development expenses consist primarily of costs incurred for the development of our product candidates, which include:
employee-related expenses, including salary, benefits, travel and stock-based compensation expense;
expenses incurred under agreements with contract research organizations and investigative sites that conduct our clinical trials;
the cost of acquiring, developing and manufacturing clinical trial materials;
facilities, depreciation and other expenses, which include direct and allocated expenses for rent and maintenance of facilities, insurance and other supplies;
platform-related lab expenses, which includes costs related to synthesis, analysis and in vitro and in vivo characterization of deuterated compounds to support the selection and progression of potential product candidates;
expenses related to consultants and advisors; and
costs associated with nonclinical activities and regulatory operations.
Research and development costs are expensed as incurred. Costs for certain development activities are recognized based on an evaluation of the progress to completion of specific tasks using information and data provided to us by our vendors and our clinical sites.
A significant portion of our research and development costs have been external costs, which we track on a program-by-program basis. These external costs include fees paid to investigators, consultants, central laboratories and contract research organizations in connection with our clinical trials, and costs related to acquiring and manufacturing clinical trial materials. Our internal research and development costs are primarily personnel-related costs, depreciation and other indirect costs. We do not track our internal research and development expenses on a program-by-program basis, as they are deployed across multiple projects under development.
The successful development of any of our product candidates is highly uncertain. As such, at this time, we cannot reasonably predict with certainty the duration and completion costs of the current or future clinical trials of any of our product candidates or if, when or to what extent we will generate revenues from the commercialization and sale of any of our product candidates that obtain marketing approval. We may never succeed in achieving regulatorymarketing approval for any of our product candidates. The duration, costs and timing of clinical trials and development of our product candidates will depend on a variety of factors, including:
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the scope and rate of progress of our ongoing as well as any additional clinical trials and other research and development activities;
successful enrollment in and completion of clinical trials, including on account of the COVID-19 pandemic and its impact on clinical trial sites;
conduct of and results from ongoing as well as any additional clinical trials and research and development activities;
significant and changing government regulation;
the terms and timing and receipt of any regulatorymarketing approvals;
the performance of our collaborators;


our ability to manufacture any of our product candidates that we are developing or may develop in the future; and
the expense and success of filing, prosecuting, defending and enforcing any patent claims and other intellectual property rights, including potential claims that we infringe other parties'parties’ intellectual property.
A change in the outcome of any of these variables with respect to the development of a product candidate could mean a significant change in the costscost and timing associated with the development of that product candidate. For example, if the FDA or another regulatory authority were to require us to conduct clinical trials or other research and development activities beyond those that we currently anticipate will be required for the completion of clinical development of a product candidate, or if we experience significant delays in enrollment in any of our clinical trials, we could be required to expend significant additional financial resources and time on the completion of clinical development.
Research and development activities are central to our business model. Product candidates in later stages of clinical development generally have higher development costs than those in earlier stages of clinical development, due to the increased size and duration of later-stage clinical trials and the manufacturing that is typically required for those later-stage clinical trials. We expect research and development costs to increase significantly for the foreseeable future as our product candidate development programs progress, but we do not believe that it is possible at this time to accurately project total program-specific expenses through commercialization. There are numerous factors associated with the successful commercialization of any of our product candidates, including future trial design and various regulatory requirements, many of which cannot be determined with accuracy at this time based on our stage of development. Additionally, future commercial and regulatory factors beyond our control will impact our clinical development programs and plans.
General and administrative expenses
General and administrative expenses consist primarily of salaries and related costs for personnel, including stock-based compensation and travel expenses for our employees in executive, operational, finance, legal, investor relations, business development and human resource functions. Other general and administrative expenses include facility-related costs, depreciation and other expenses not allocated to research and development expense and professional fees for directors, accounting and legal services and expenses associated with obtaining and maintaining patents. In 2017,both 2021 and 2020, we also incurred expenses responding to the Federal Trade Commission's requests for information and documentation in connection with their review of the transaction contemplated by the Vertex Asset Purchase Agreement as well as intellectual property matters related to CTP-543.
We anticipate that our general and administrative expenses will increase in the future as our pipeline grows and matures. Additionally, if and when we believe that a regulatorymarketing approval of the first product candidate that we intend to commercialize on our own appears likely, we anticipate an increase in payroll and related expenses as a result of our preparation for commercial operations, especially as it relates to the sales, marketing and distribution of our product candidates.
Investment income
Investment income consists of interest income earned on cash equivalents and investments. The amount of investment income earned in any particular period may vary primarily as a result of the amount of cash equivalents and investments held during the period and the types of securities included in our portfolio during the period. Our current investment policy is to maintain a diversified investment portfolio of U.S. government-backed securities and money market mutual funds consisting of U.S. government-backed securities.
Interest and other expenseUnrealized loss on marketable equity securities
Interest and other expenseUnrealized loss on marketable equity securities consists primarily of interest expense on amounts outstanding under our prior debt facilities with Hercules Technology Growth Capital,changes in the fair value of shares of common stock of Processa Pharmaceuticals, Inc., or Hercules, and amortization of debt discount. On October 1, 2015, we made a final payment to Hercules, thereby fulfilling all obligations under our 2011 debt facility. On June 8, 2017, we entered into a loan agreement with Hercules in the amount of $30.0 million which we then paid off on September 7, 2017 in the amount of $30.8 million pursuant to a payoff letter. All our outstanding indebtedness and obligations owed to Hercules were paid in full, and the loan agreement was terminated. Additional information regarding the debt facility is availableProcessa, held by us, as discussed further in Note 15 of12 to the consolidated financial statements appearing elsewhere in this Annual Report on Form 10-K.

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Unrealized loss on warrant liabilities
Unrealized loss on warrant liabilities consists of changes in the fair value of warrant liabilities resulting from the 2021 Financing, as discussed further in Note 14 to the consolidated financial statements appearing elsewhere in this Annual Report on Form 10-K.
Income Taxestaxes
We record a provision or benefit for income taxes on pre-tax income or loss based on our estimated effective tax rate for the year. We recorded $0.3had a pre-tax net loss of $80.1 million inand did not record an income tax benefit and $0.4 million in income tax expense during the years ended December 31, 2017 and 2015, respectively. No tax provision was recorded during the year ended December 31, 2016 due to the2021. We had a pre-tax net loss


generated. The of $74.9 million and recorded $85 thousand in income tax benefit realized in fiscalduring the year 2017 is the result of the enactment of the Tax Cuts and Jobs Act (TCJA) that changed corporate alternative minimum tax ("AMT"), resulting in a an expected refund for AMT paid in fiscal year 2015. As ofended December 31, 2015, the U.S. federal tax code limited the use of net operating loss carryforwards to ninety percent of AMT income resulting in an effective tax rate of approximately two percent.
Loss on extinguishment of debt
In connection with the loan agreement entered into with Hercules on June 8, 2017 and subsequently remitted on September 7, 2017, we recognized a loss on the extinguishment of debt for $1.4 million. Additional information regarding the debt facility is available in Note 15 of the consolidated financial statements appearing elsewhere in this Annual Report on Form 10-K.2020.
CRITICAL ACCOUNTING POLICIES AND SIGNIFICANT JUDGMENTS AND ESTIMATES
Our management’s discussion and analysis of our financial condition and results of operations are based on our consolidated financial statements, which have been prepared in accordance with U.S. generally accepted accounting principles.principles, or GAAP. The preparation of these financial statements requires us to make judgments and estimates that affect the reported amounts of assets, liabilities, revenues and expenses and the disclosure of contingent assets and liabilities in our financial statements. We base our estimates on historical experience, known trends and events and various other factors that are believed to be reasonable under the circumstances. Actual results may differ from these estimates. On an ongoing basis, we evaluate our judgments and estimates in light of changes in circumstances, facts and experience. The effects of material revisions in estimates, if any, will be reflected in the consolidated financial statements prospectively from the date of change in estimates.
While our significant accounting policies are described in more detail in the notes to our consolidated financial statements appearing elsewhere in this Annual Report on Form 10-K, we believe that the following accounting policies used in the preparation of our financial statements require the most significant judgments and estimates:
revenue recognition;
prepaid and accrued research and development expense;expenses; and
stock-based compensation; and
income taxes.compensation.
Revenue recognition
We have primarily generated revenue through arrangements with collaborators for the development and commercialization of product candidates. In fiscal year 2017, we generated
We account for revenue through an Asset Purchase Agreement with Vertex, which was treated consistently with our other multiple-element arrangements.
Collaboration revenue
The terms of our collaboration and license agreements have typically contained multiple elements, or deliverables, which have included licenses, or optionsaccording to obtain licenses, to product candidates, referred to as exclusive licenses, as well as research and development activities to be performed by us on behalf of the collaborator related to the licensed product candidates. Payments that we may receive under these agreements include non-refundable upfront license fees, payment for research and development activities, payments based upon achievement of specified milestones, payment upon exercise of license rights or options to license product candidates and royalties on any resulting product sales.

Multiple-Element Arrangements. Our collaborations primarily represent multiple-element arrangements. We analyze multiple-element arrangements based on the guidance in Financial Accounting Standards Board, or FASB, Accounting Standards Codification, or ASC, Topic 605-25, Revenue Recognition-Multiple-Element Arrangements, or ASC 605-25. Pursuant to the guidance in ASC 605-25, we evaluate multiple-element arrangements to determine the deliverables included in the arrangement and whether the individual deliverables represent separate units of accounting or whether they must be accounted for as a combined unit of accounting. This evaluation involves subjective determinations and requires us to make judgments about the individual deliverables and whether such deliverables are separable from the other aspects of the contractual relationship. Deliverables are considered separate units of accounting provided that: (1) the delivered item(s) has value to the customer on a standalone basis and (2) if the arrangement includes a general right of return relative to the delivered item(s), delivery or performance of the undelivered item(s) is considered probable and substantially in our control. In assessing whether a delivered item(s) has standalone value, we consider whether the collaboration partner can use the delivered item(s) for its intended purpose without the receipt of the remaining element(s), whether the value of the deliverable is dependent on the undelivered


item(s) and whether there are other vendors that can provide the undelivered element(s). In making these assessments, we consider factors such as the research, manufacturing and commercialization capabilities of the collaboration partner and the availability of the associated expertise in the general marketplace. The terms of our collaboration and licensing arrangements do not contain general rights of return that would preclude recognition of revenue.
Arrangement consideration that is fixed or determinable is allocated among the separate units of accounting using the relative selling price method. We determine the selling price of a unit of accounting following the hierarchy of evidence prescribed by ASC 605-25. Accordingly, we determine the estimated selling price for units of accounting within each arrangement using vendor-specific objective evidence of selling price, if available, third-party evidence of selling price if vendor-specific objective evidence is not available, or best estimate of selling price if neither vendor-specific objective evidence nor third-party evidence is available. We typically use best estimate of selling price to estimate the selling price for exclusive licenses and research and development services, since we generally do not have vendor-specific objective evidence or third-party evidence of selling price for these items. Determining the best estimate of selling price for a unit of accounting requires significant judgment. In developing the best estimate of selling price for a unit of accounting, we consider applicable market conditions and relevant entity-specific factors, including factors that were contemplated in negotiating the agreement with the customer and estimated costs. We validate the best estimate of selling price for units of accounting by evaluating whether changes in the key assumptions used to determine the best estimate of selling price will have a significant effect on the allocation of arrangement consideration between multiple units of accounting.
Our multiple-element revenue arrangements may include the following:
Option Arrangements. An option to obtain an exclusive license is considered substantive if, at the inception of the arrangement, we are at risk as to whether the collaboration partner will choose to exercise the option. Factors that we consider in evaluating whether an option is substantive include the overall objective of the arrangement, the benefit the collaborator might obtain from the arrangement without exercising the option, the cost to exercise the option and the likelihood that the option will be exercised. For arrangements under which an option is considered substantive, we do not consider the item underlying the option to be a deliverable at the inception of the arrangement and the associated option fees are not included in allocable arrangement consideration, assuming the option is not priced at a significant and incremental discount. Conversely, for arrangements under which an option is not considered substantive, we would consider the item underlying the option to be a deliverable at the inception of the arrangement and a corresponding amount would be included in the allocable arrangement consideration. A significant and incremental discount included in an otherwise substantive option is considered to be a separate deliverable at the inception of the arrangement.

Exclusive Licenses. We recognize arrangement consideration allocated to each unit of accounting when all of the revenue recognition criteria included in ASC Topic 605 Revenue Recognition are satisfied for that particular unit of accounting. We will recognize as revenue arrangement consideration attributed to exclusive licenses that have standalone value from the other deliverables to be provided in an arrangement upon delivery. We will recognize as revenue arrangement consideration attributed to exclusive licenses that do not have standalone value from the other deliverables to be provided in an arrangement over our estimated performance period as the arrangement would be accounted for as a single, combined unit of accounting.
Research and Development Services. We recognize revenue associated with research and development services over the associated period of performance. If there is no discernible pattern of performance and/or objectively measurable performance measures do not exist, then we recognize revenue on a straight-line basis over the period we are expected to complete our performance obligations. Conversely, if the pattern of performance in which the service is provided to the customer can be determined and objectively measurable performance measures exist, then we recognize revenue under the arrangement using the proportional performance method, which requires us to make certain estimates when determining the proportion of services rendered in relation to the total services expected to be rendered.
Milestone Revenue. At the inception of an arrangement that includes milestone payments, we evaluate whether each milestone is substantive and at risk to both parties on the basis of the contingent nature of the milestone. This evaluation includes an assessment of whether:
the consideration is commensurate with either our performance to achieve the milestone or the enhancement of the value of the delivered item(s) as a result of a specific outcome resulting from our performance to achieve the milestone;
the consideration relates solely to past performance; and
the consideration is reasonable relative to all of the deliverables and payment terms within the arrangement.


We evaluate factors such as the scientific, clinical, regulatory, commercial and other risks that must be overcome to achieve the respective milestone and the level of effort and investment required to achieve the respective milestone in making this assessment. There is considerable judgment involved in determining whether a milestone satisfies all of the criteria required to conclude that a milestone is substantive. We have concluded that all of the development and regulatory milestones included in our current collaboration arrangements are substantive. Accordingly, in accordance with FASB ASC Topic 605-28, Revenue Recognition-Milestone Method, revenue from development and regulatory milestone payments will be recognized in their entirety upon successful accomplishment of the milestone, assuming all other revenue recognition criteria are met. Milestones that are not considered substantive would be recognized as revenue over the remaining period of performance, assuming all other revenue recognition criteria are met. Revenue from sales-based milestone payments will be accounted for as royalties and recognized as revenue upon achievement of the milestone, assuming all other revenue recognition criteria are met.
Royalty Revenue. We will recognize royalty revenue in the period of sale of the related product(s), based on the underlying contract terms, provided that the reported sales are reliably measurable and we have no remaining performance obligations, assuming all other revenue recognition criteria are met.
Adoption of ASU 2014-09 (Topic 606)
In May 2014, the Financial Accounting Standard Board, or FASB, issued Accounting Standards Update, or ASU, No. 2014-09, Revenue from Contracts with Customers (Topic 606), and all related amendments, which is also referred to as Accounting Standards Codification, or ASU 2014-09, which stipulatesASC, 606. We adopted ASC 606 effective January 1, 2018. ASC 606 is a single comprehensive model for entities to use in accounting for revenue arising from contracts with customers and supersedes most current revenue recognition guidance, including industry-specific guidance. The revenue standard is based on the principle that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. This update will be effective for us beginning inThe revenue standard also requires additional disclosure about the first quarternature, amount, timing and uncertainty of fiscal 2018.revenue and cash flows arising from customer contracts and costs to obtain or fulfill contracts. We applied ASC 606 on January 1, 2018 to all contracts using the modified retrospective approach. For additional details regarding our adoption of this authoritative guidance,ASC 606 and our associated accounting policies, see NoteNotes 2 inand 12 to the accompanying consolidated financial statements appearing elsewhere in this Annual Report on Form 10-K.
AccruedPrepaid and accrued research and development expenses
As part of the process of preparing our financial statements, we are required to estimate our accrued expenses as of each balance sheet date. This process involves reviewing open contracts and purchase orders, communicating with our personnel to identify services that have been performed on our behalf and estimating the level of service performed and the associated cost incurred for the service when we have not yet been invoiced or otherwise notified of the actual cost. The majority of our service providers invoice us monthly in arrears for services performed or when contractual milestones are met. We make estimates of our accrued expenses as of each balance sheet date in our financial statements based on facts and circumstances known to us at that time. We periodically confirm the accuracy of our estimates with the service providers and make adjustments if necessary. Examples of estimated accrued research and development expenses include fees paid to:
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contract research organizations in connection with clinical trials;
investigative sites in connection with clinical trials;
vendors in connection with nonclinical development activities; and
vendors related to product manufacturing, development and distribution of clinical supplies.
We generally accrue expenses related to research and development activities based on the services receivedprovided and efforts expended pursuant to contracts with multiple contract research organizations that conduct and manage clinical trials on our behalf as well as other vendors that provide research and development services. The financial terms of these agreements are subject to negotiation, vary from contract to contract and may result in uneven payment flows. There may be instances in which payments made to our vendors will exceed the level of services provided and result in a prepayment of the clinical expense. Payments under some of these contracts depend on factors such as the successful enrollment of subjects and the completion of clinical trial milestones. In accruing service fees, we estimate the time period over which services will be performed and the level of effort to be expended in each period. If the actual timing of the performance of services or the level of effort varies from our estimate, we adjust the accrual or prepaid accordingly. Non-refundable advance payments for goods and services that will be used in future research and development activities are expensed when the activity has been performed or when the goods have been received rather than when the payment is made.
Although we do not expect our estimates to be materially different from amounts actually incurred, if our estimates of the status and timing of services performed differ from the actual status and timing of services performed, we may report amounts that are too high or too low in any particular period. To date, there have been no material differences from our estimates to the amounts actually incurred.

Stock-based compensation


Stock-Based Compensation

Since our inception in MayApril 2006, we have applied the fair value recognition provisions of Financial Accounting Standards Board Accounting Standards CodificationASC Topic 718, Compensation-Stock Compensation, which we refer to as ASC 718, to account for stock-based compensation arrangements with our employees. Stock-based compensation arrangements with non-employees has not been significant. We use the Black-Scholes-Merton option pricing model for determining the estimated fair value for stock-based awards on the date of grant, which requires the use of subjective and complex assumptions to determine the fair value of stock-based awards, including the fair value of the common stock underlying stock-based compensation awards (for periods prior to our IPO), the award’s expected term and the price volatility of the underlying stock. We recognize the value of the portion of the awards that is ultimately expected to vest as expense over the requisite vesting periods on a ratable basis for the entire award. Our stock option awards granted to employees generally have a ten yearten-year term and typically vest over a fourfour-year period.
Prior to the year period.

Expectedended December 31, 2020, expected volatility was estimated using a weighted-averageweighted average of our historical volatility of our common stock and the historical volatility of the common stock of a representative group of publicly tradedpublicly-traded companies from the biopharmaceutical industry with similar characteristics as us, including stage of product development and therapeutic focus. We will continueHaving accumulated sufficient historical trading data, we transitioned to apply this process until a sufficient amount ofcalculating expected volatility for the year ended December 31, 2020 based on the historical information regarding the volatility of only our own stock price becomes available.common stock.

The expected term of awards represents the period of time that the awards are expected to be outstanding. We use the simplified method as prescribed by the Securities and Exchange CommissionSEC Staff Accounting Bulletin, or SAB, No. 107, Share-Based Payment, as we do not have sufficient historical exercise data to provide a reasonable basis upon which to estimate the expected term of stock options granted to employees.

We utilize a dividend yield of zero based on the fact that we have never paid cash dividends and have no current intention of paying cash dividends. The risk-free interest rate was estimated using an average of treasury bill interest rates over a period commensurate with the expected term of the option at the time of grant. Forfeitures are estimated at the time of grant and revised, if necessary, in subsequent periods if actual forfeitures differ from those estimates.
We have computed the fair value of employee stock options at the date of grant using the following weighted-average assumptions:
 Year ended December 31,
 20212020
Expected volatility69.83%68.60%
Expected term6.0 years6.0 years
Risk-free interest rate0.60%1.31%
Expected dividend yield—%—%
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  Year ended December 31,
  2017 2016 2015
Expected volatility 78.15% 78.29% 73.38%
Expected term 6.0 years
 6.0 years
 6.0 years
Risk-free interest rate 2.07% 1.36% 1.69%
Expected dividend yield % % %

We have also granted restricted stock units and performance stock units to our employees and members of our senior management team.directors. We recognize compensation expense for restricted stock units ratably over the required service period. For awards with performance conditions in which the award does not vest unless the performance condition is met, we recognize expense only if we estimate that achievement of the performance condition is probable. If we conclude that vesting is probable, we recognize expense from the date that we reach this conclusion through the estimated vesting date.

Income Taxes

We record income taxes under the liabilitydate using an accelerated attribution method. Deferred tax assets and liabilities reflect our estimation of the future tax consequences of temporary differences between the carrying amounts of assets and liabilities for book and tax purposes. We determine deferred income taxes based on the differences in accounting methods and timing between financial statement and income tax reporting. Accordingly, we determine the deferred tax asset or liability for each temporary difference based on the enacted tax rates expected to be in effect when we realize the underlying items of income and expense. We consider many factors when assessing the likelihood of future realization of our deferred tax assets, including our recent earnings experience, expectations of future taxable income, and the carryforward periods available to us for tax reporting purposes, as well as other relevant factors. We establish a valuation allowance to reduce deferred tax assets to the amount we believe is more likely than not to be realized. Due to inherent complexities arising from the nature of our business, future changes in income tax law, or variances between our actual and anticipated operating results, we make certain judgments and estimates, including our ability


to realize our deferred tax assets and our ability to use our operating loss carryforwards and tax credits to offset taxable income. Therefore, actual income taxes could materially vary from these estimates.

Our ability to use our operating loss carryforwards and tax credits to offset taxable income is subject to restrictions under Sections 382 and 383 of the United States Internal Revenue Code (the “Internal Revenue Code”). Net operating loss and tax credit carryforwards may become subject to an annual limitation in the event of certain cumulative changes in the ownership interest of significant shareholders over a three-year period in excess of 50 percent, as defined under Sections 382 and 383 of the Internal Revenue Code. Such changes would limit our use of operating loss carryforwards and tax credits. In such a situation, we may be required to pay income taxes, even though significant operating loss carryforwards and tax credits exist. In determining the tax provisions for fiscal years 2017 and 2015, we assessed our ability to use our net operating loss carryforwards in accordance with Sections 382 and 383 of the Internal Revenue Code, discussed further in Note 10 in the accompanying notes to the consolidated financial statements appearing elsewhere in this Annual Report on Form 10-K.

On December 22, 2017, the President of the United States signed into law the Tax Cuts and Jobs Act (“TCJA”). This legislation makes broad and complex changes to the U.S. tax code, including, but not limited to, (i) reducing the U.S. federal statutory tax rate from 35% to 21%; (ii) eliminating the corporate alternative minimum tax (AMT) and changing how existing AMT credits can be realized; (iii) modifying the officer’s compensation limitation, and (iv) changing rules related to uses and limitations of net operating loss carryforwards created in tax years beginning after December 31, 2017.

As a result of the enacted law, we were required to revalue deferred tax assets and liabilities existing as of December 31, 2017 from the 35% federal rate in effect through the end of 2017, to the new 21% rate. Furthermore, we recorded a reduction to our deferred tax assets and a corresponding reduction to our valuation allowance. Accordingly, there was no impact to our income statement due to the reduction in the U.S. corporate tax rate. Due to the changes to corporate AMT, we recorded an AMT benefit in fiscal year 2017 due to the expected refund for AMT paid in fiscal year 2015 and the lack of provision required for 2017.

Our preliminary estimate of the TCJA and the remeasurement of our deferred tax assets and liabilities is subject to the finalization of management’s analysis related to certain matters, such as developing interpretations of the provisions of the TCJA, changes to certain estimates and the filing of our tax returns. U.S. Treasury regulations, administrative interpretations or court decisions interpreting the TJCA may require further adjustments and changes in our estimates. The final determination of the TCJA and the remeasurement of our deferred assets and liabilities will be completed as additional information becomes available, but no later than one year from the enactment of the TCJA. We expect to complete our analysis within the measurement period in accordance with Staff Accounting Bulletin No. 118, or SAB 118.

For additional details regarding our accounting for income taxes, see Note 10 in the accompanying consolidated financial statements appearing elsewhere in this Annual Report on Form 10-K.
PENDING AND RECENTLY ADOPTED ACCOUNTING PRONOUNCEMENTS
For detailed information regarding recently issued accounting pronouncements and the actual and expected impact on our consolidated financial statements, see Note 2 into the accompanying consolidated financial statements appearing elsewhere in this Annual Report on Form 10-K.
RESULTS OF OPERATIONS
ComparisonDiscussion of the yearsyear ended December 31, 2017 and 20162021
The following table summarizes our results of operations for the yearsyear ended December 31, 2017 and 2016, together with the changes in those items in dollars.2021.



  Year ended December 31,  
(in thousands) 2017 2016 Change
Revenue:      
License and research and development revenue $62
 $174
 $(112)
Other revenue 143,829
 
 143,829
Total revenue 143,891
 174
 143,717
Operating expenses:      
Research and development 30,223
 36,983
 (6,760)
General and administrative 21,019
 14,358
 6,661
Total operating expenses 51,242
 51,341
 (99)
Income (Loss) from operations 92,649
 (51,167) 143,816
Investment income 1,336
 447
 889
Other income 3,601
 
 3,601
Interest and other expense (815) 
 (815)
Loss on extinguishment of debt (1,432) 
 (1,432)
Income (Loss) before income taxes 95,339
 (50,720) 146,059
(Benefit) Provision for income taxes (300) 
 (300)
Net income (loss) $95,639
 $(50,720) $146,359
License and Research and Development Revenue

Year ended December 31,
(in thousands)2021
Revenue:
License and research and development revenue$39 
Other revenue32,539 
Total revenue32,578 
Operating expenses:
Research and development87,555 
General and administrative22,531 
Total operating expenses110,086 
Loss from operations(77,508)
Investment income46 
Unrealized loss on marketable equity securities(506)
Unrealized loss on warrant liabilities(2,083)
Net loss$(80,051)
Revenue
Total revenue was $62 thousand$32.6 million for the year ended December 31, 2017 as2021, an increase of $24.7 million compared to $174 thousand for the prior year period, a decrease of $112 thousand. The decrease in license and research and development revenue in the 2017 period was primarily due to a decrease$7.9 million in revenue recognized for services performed under our Celgene and Jazz Pharmaceuticals collaboration agreements of $58 thousand and $54 thousand, respectively. These changes were attributable to the completion of clinical conduct under these programs in 2015.
Other Revenue

Other revenue recognized during the year ended December 31, 2017 of $143.8 million2020. The revenue recognized in 2021 was primarily attributable to the closing$32.0 million in cash received from Vertex in exchange for the removal of the transaction contemplated byMilestone Obligation.

As of December 31, 2021, we had deferred revenue of $2.8 million related to a payment received from GlaxoSmithKline, or GSK, and $4.8 million related to the Asset Purchasepotential future AVP-786 royalties under the Avanir Agreement that we sold in the 2021 Financing, of which $2.2 million is associated with Vertex, discussed in detail in NoteRA Capital Healthcare Fund, L.P., or RA Capital, a related party. For additional details related to our contract liabilities and the 2021 Financing, see Notes 12 and 14, inrespectively, to the consolidated financial statements appearing elsewhere in this Annual Report on Form 10-K.
As ofResearch and development expenses
The following table summarizes our research and development expenses for the year ended December 31, 2017, we had deferred revenue of:2021, with our external research expenses separately classified by program and our internal research expenses separately classified by category.
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$7.2
Year ended December 31,
(in thousands)2021
CTP-543 external costs$57,571 
CTP-692 external costs2,116 
External costs for other programs1,215 
Employee and contractor-related expenses21,234 
Facility and other expenses5,419 
Total research and development expenses$87,555 
Research and development expenses were $87.6 million for the year ended December 31, 2021. CTP-543 external costs increased by $39.6 million from $18.0 million for the year ended December 31, 2020 to $57.6 million for the year ended December 31, 2021 primarily due to increased activity in the two ongoing Phase 3 clinical trials. CTP-692 external costs decreased by $15.2 million from $17.3 million for the year ended December 31, 2020 to $2.1 million for the year ended December 31, 2021 due to the cessation of development activities following the results of the Phase 2 clinical trial. External costs for other programs consisted of costs incurred to develop our research pipeline. Employee and contractor-related expenses consisted primarily of cash and non-cash stock-based compensation expenses. Facility and other expenses consisted primarily of rent and maintenance of our premises.
General and administrative expenses
The following table summarizes our general and administrative expenses for the year ended December 31, 2021.
Year ended December 31,
(in thousands)2021
Employee salaries and benefits$11,713 
External professional service expenses6,195 
Facility, technology and other expenses4,340 
Depreciation and amortization283 
Total general and administrative expenses$22,531 
General and administrative expenses for the year ended December 31, 2021 consisted primarily of salaries and related to our collaboration with Celgene, $1.1costs for personnel, including non-cash stock-based compensation. Other general and administrative expenses included accounting and legal services, office and facility-related costs. Total general and administrative expenses were $22.5 million offor the year ended December 31, 2021, which is attributablean increase of $3.6 million compared to $18.9 million for the year ended December 31, 2020 primarily due to an increase in external professional service expenses and non-cash stock-based compensation expense.
Investment income
Investment income was $46 thousand for the year ended December 31, 2021 and consisted of interest income earned on cash equivalents and investments. Investment income decreased $1.2 million for the year ended December 31, 2021 compared to December 31, 2020 due to the CTP-730 program and $6.1decrease in our holdings of available-for-sale securities in order to maintain liquidity requirements.
Unrealized loss on marketable equity securities
We recorded an unrealized loss on marketable equity securities of $0.5 million during the year ended December 31, 2021. Unrealized loss on marketable equity securities consisted of which is attributable to two additional license programs,changes in the fair value of shares of common stock of Processa held by us, as discussed further in Note 12 to the consolidated financial statements appearing elsewhere in this Annual Report on Form 10-K;10-K.
$39 thousand related to our collaboration with Jazz Pharmaceuticals and associated with research and development services to be performed;Unrealized loss on warrant liabilities
$2.8We recorded an unrealized loss on warrant liabilities of $2.1 million related to a payment received from GSK; and
$0.3 million related to our Asset Purchase Agreement with Vertex for transition services.
Research and development expenses
The following table summarizes our external research and development expenses, by program, for the years ended December 31, 2017 and 2016, with our internal research expenses separately classified by category. Because Avanir is conducting the clinical development of AVP-786 at its expense, we made no investment in the program during these periods. External research and development expenses related to CTP-692 were immaterial during the fiscal year ended December 31, 2017.


  Year ended December 31,
(in thousands) 2017 2016
     
CTP-543 external costs $6,299
 $7,603
CTP-656 external costs 3,076
 9,592
CTP-730 external costs 19
 31
JZP-386 external costs 
 19
External costs for other programs 1,481
 1,732
Employee and contractor-related expenses 15,685
 14,523
Facility and other expenses 3,663
 3,483
Total research and development expenses $30,223
 $36,983

Research and development expenses were $30.2 million for the year ended December 31, 2017, compared to $37.0 million for the prior year period, a decrease of $6.8 million. This decrease was primarily due to a decrease of $6.5 million and $1.3 million in direct external expenses associated with CTP-656 and CTP-543, respectively. The decrease in CTP-656 expenses in 2017 was attributable to costs incurred related to the Phase 1 clinical testing and Phase 2 manufacturing activities during the year ended December 31, 2016, compared to costs incurred2021. Unrealized loss on warrant liabilities consisted of changes in the fair value of warrant liabilities related to the Phase 2 clinical testing through July 2017 when the sale of CTP-656 to Vertex under the Asset Purchase Agreement closed.

The decrease in CTP-543 external expenses was driven by the timing to initiate the Phase 2a clinical trial. The decrease in external costs for other programs of $0.2 million was due to decreased consulting expenses for outsourced research development. The increase in employee and contractor-related expenses was primarily attributable to increased non-cash stock-based compensation expenses.

General and administrative expenses

General and administrative expenses were $21.0 million for the year ended December 31, 2017, compared to $14.4 million for the prior year. The increase of $6.6 million was attributable to a $4.1 million increase in consulting and professional fees associated with the CTP-656 Asset Purchase Agreement and intellectual property matters related to CTP-543, and a $2.5 million increase in staffing costs, primarily due to an increase in non-cash stock-based compensation expenses.
Investment income
Investment income was $1.3 million for the year ended December 31, 2017, compared to $0.4 million for the prior year period. The increase is attributable to an increase in investments which is due to the upfront payment from Vertex2021 Financing, as a result of the closing of the transaction contemplated by the Asset Purchase Agreement, discussed further in Note 14 ofto the consolidated financial statements appearing elsewhere in this Annual Report on Form 10-K.

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Other income
Other income was $3.6 million duringDiscussion of the year ended December 31, 2017 due to the disgorgement2020
The following table summarizes our results of short-swing profits arising from sales of the Company's stock by a 10% stockholder pursuant to Section 16(b) of the Securities and Exchange Act of 1934.

Interest and other expense
Interest expense recorded duringoperations for the year ended December 31, 2017 is attributable2020.
Year ended December 31,
(in thousands)2020
Revenue:
License and research and development revenue$7,902 
Total revenue7,902 
Operating expenses:
Research and development61,624 
General and administrative18,925 
Total operating expenses80,549 
Loss from operations(72,647)
Investment income1,202 
Unrealized loss on marketable equity securities(3,406)
Loss before income taxes(74,851)
Income tax benefit85 
Net loss$(74,766)
License and research and development revenue
License and research and development revenue was $7.9 million for the year ended December 31, 2020. The revenue recognized in 2020 was primarily due to the interest that was dueexpiration of two licensing options under our loan facilityprevious collaboration agreement with HerculesCelgene Corporation, or Celgene, and amortizationthe satisfaction of obligations to perform research and development services and to supply nonclinical and clinical trial material in connection with the termination of the loan discount. Allagreement with Celgene. We recognized $7.8 million in revenue associated with this arrangement for the year ended December 31, 2020.
As of December 31, 2020, we had deferred revenue of $2.8 million related to a payment received from GSK. For additional details related to our outstanding indebtedness and obligations owedcontractual liabilities, see Note 12 to Hercules were paid in full, and the loan agreement was terminated in September 2017. Additional information regarding the debt facility is available in Note 15 of the consolidated financial statements appearing elsewhere in this Annual Report on Form 10-K.
Loss on extinguishment of debt
As a result of the prepayment of the debt facility with Hercules, we recognized a loss on the extinguishment of debt of $1.4 million. All our outstanding indebtedness and obligations owed to Hercules were paid in full on September 7, 2017, and the loan agreement was terminated.


Provision for income taxes
We recorded a tax benefit of $0.3 million during the year ended December 31, 2017. The tax benefit recorded in fiscal year 2017 is the result of the alternative minimum tax ("AMT") paid in fiscal year 2015, which is refundable under the Tax Cuts and Jobs Act of 2017. Income taxes that would otherwise have been due on the 2017 taxable income were offset with the tax benefit of net operating loss carryforwards which had previously had a full valuation allowance, except for $1.9 million of AMT incurred due to the limitation on use of net operating loss carryforwards when determining AMT. However, the 2017 AMT is also refundable under the Tax Cuts and Jobs Act of 2017 and thus we have not recorded a tax provision for this amount. The total amount of refundable AMT credits of $2.2 million is reflected as income tax receivable in the accompanying consolidated balance sheet as of December 31, 2017. No tax benefit or provision was recorded during the year ended December 31, 2016 due to the net loss generated.

We provide a full valuation allowance for any tax benefit related to net operating losses due to the uncertainty of the ability to realize such benefits.

Comparison of the years ended December 31, 2016 and 2015
The following table summarizes our results of operations for the years ended December 31, 2016 and 2015, together with the changes in those items in dollars.
  Year ended December 31,  
(in thousands) 2016 2015 Change
Revenue:      
License and research and development revenue $174
 $6,574
 $(6,400)
Other revenue 
 50,155
 (50,155)
Milestone revenue 
 10,000
 (10,000)
Total revenue 174
 66,729
 (66,555)
Operating expenses:      
Research and development 36,983
 28,885
 8,098
General and administrative 14,358
 13,056
 1,302
Total operating expenses 51,341
 41,941
 9,400
(Loss) Income from operations (51,167) 24,788
 (75,955)
Investment income 447
 124
 323
Interest and other expense 
 (309) 309
(Loss) Income before income taxes (50,720) 24,603
 (75,323)
Provision for income taxes 
 429
 (429)
Net (loss) income $(50,720) $24,174
 $(74,894)
License and Research and Development Revenue

License and research and development revenue was $0.2 million for the year ended December 31, 2016 as compared to $6.6 million for the prior year period, a decrease of $6.4 million. The decrease in revenue in the 2016 period was primarily due to a decrease in revenue recognized for services performed under our Celgene and Jazz Pharmaceuticals collaboration agreements of $5.5 million and $0.8 million, respectively. These changes were attributable to the completion of clinical conduct under these programs in 2015.
Other Revenue

Other revenue recognized during the year ended December 31, 2015 was attributable to our patent assignment agreement with Auspex, whereby we received a one-time change in control payment of $50.2 million from Auspex, which was acquired by Teva Pharmaceutical Industries Ltd. in May 2015.



Milestone Revenue

Milestone revenue recognized during the year ended December 31, 2015 was attributable to an $8.0 million milestone payment earned upon completion of Phase 1 clinical evaluation for CTP-730 as well as a $2.0 million milestone payment earned as a result of the initial dosing in a Phase 3 clinical trial of AVP-786.
Research and development expenses
The following table summarizes our external research and development expenses by program, for the yearsyear ended December 31, 20162020, with our external research expenses separately classified by program and 2015, with our internal research expenses separately classified by category. Because Avanir is conducting the clinical development of AVP-786 at its expense, we made minimal investment in the program during these periods.
  Year ended December 31,
(in thousands) 2016 2015
     
CTP-656 external costs $9,592
 $3,759
CTP-543 external costs 7,603
 2,064
CTP-730 external costs 31
 2,711
JZP-386 external costs 19
 1,084
External costs for other programs 1,732
 2,622
Employee and contractor-related expenses 14,523
 13,507
Facility and other expenses 3,483
 3,138
Total research and development expenses $36,983
 $28,885

Year ended December 31,
(in thousands)2020
CTP-543 external costs$18,006 
CTP-692 external costs17,295 
External costs for other programs972 
Employee and contractor-related expenses20,012 
Facility and other expenses5,339 
Total research and development expenses$61,624 
Research and development expenses were $37.0$61.6 million for the year ended December 31, 2016, compared2020. CTP-543 external costs primarily related to $28.9 millionclinical development, including preparations for the prior year period, an increase of $8.1 million. This increase wasPhase 3 clinical trial that we initiated in November 2020. CTP-692 external costs primarily due to an increase of $5.8 million and $5.5 million in direct external expenses associated with CTP-656 and CTP-543, respectively, which were partially attributablerelated to the conductPhase 2 clinical trial. External costs for other programs consisted of Phase 1 clinical testing duringcosts incurred to develop our research pipeline. Employee and contractor-related expenses consisted primarily of cash and non-cash stock-based compensation expenses. Facility and other expenses consisted primarily of rent and maintenance of our premises.
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General and administrative expenses
The following table summarizes our general and administrative expenses for the year ended December 31, 2016, as well as costs incurred to support the advancement of CTP-656 and CTP-543 into Phase 2 clinical testing. The increase in employee and contractor-related expenses of $1.0 million was attributable to higher compensation expenses as compared to the 2015 period, primarily due to an increase in headcount.2020.

The decrease in CTP-730 and JZP-386 expenses in the 2016 period of $2.7 million and $1.1 million, respectively, was attributable to the completion of clinical conduct under these programs in 2015. The decrease of $0.9 million in external costs for other programs in the 2016 period was primarily attributable to the discontinuation of our CTP-354 program and the completion of clinical evaluation of the CTP-499 program.

General and administrative expenses

Year ended December 31,
(in thousands)2020
Employee salaries and benefits$10,939 
External professional service expenses3,669 
Facility, technology and other expenses4,016 
Depreciation and amortization301 
Total general and administrative expenses$18,925 
General and administrative expenses were $14.4for the year ended December 31, 2020 consisted primarily of salaries and related costs for personnel, including non-cash stock-based compensation. Other general and administrative expenses included accounting and legal services, office and facility-related costs.
Investment income
Investment income was $1.2 million for the year ended December 31, 2016, compared2020 and consisted of interest income earned on cash equivalents and investments.
Unrealized loss on marketable equity securities
We recorded an unrealized loss on marketable equity securities of $3.4 million during the year ended December 31, 2020. Unrealized loss on marketable equity securities consisted of changes in the fair value of shares of common stock of Processa held by us, as discussed further in Note 12 to $13.1 million for the prior year. The increaseconsolidated financial statements appearing elsewhere in this Annual Report on Form 10-K.
Income tax benefit
We recognized a tax benefit of $1.3 million was primarily attributable to a $1.2 million increase in non-cash stock-based compensation expense.

Investment income

Investment income was $0.4$0.1 million for the year ended December 31, 2016, compared to $0.1 million for2020 upon the prior year period. The increase is attributable to higher yielding investments, resulting in higher interest earned onutilization of state research and development tax credits when filing our investments.

Interest and other expense

On October 1, 2015, our 2011 debt facility with Hercules Technology Growth Capital, Inc., or Hercules, matured. We fulfilled all obligations under the 2011 debt facility as of the maturity date, and as a result, no interest expense was recorded during the twelve months ended December 31, 2016, as compared to $0.3 million recorded during the twelve months ended December 31, 2015.




Provision for income taxes

No2019 Massachusetts state tax provision was recorded during the year ended December 31, 2016 due to the net loss generated. We recorded a tax provision of $0.4 million during the year ended December 31, 2015. The tax provision of $0.4 million is attributable to the federal limitation on alternative minimum tax net operating loss carryforwards.return.
LIQUIDITY, AND CAPITAL RESOURCES AND GOING CONCERN
We have incurred cumulative losses and negative cash flows from operations since our inception in April 2006, and as of December 31, 2017,2021, we had an accumulated deficit of $76.2$349.5 million. Although we generated net income in fiscal year 2017 and 2015 due to the one-time payments from Vertex and Auspex, respectively, weWe anticipate that we will continue to incur losses for at least the next several years. We expect that our research and development and general and administrative expenses will continue to increase and, as a result, we will need additional capital to fund our operations, which we may raise through a combination of equity offerings, debt financings, additional collaborationscollaboration and licensing arrangements and other sources.
As of December 31, 2021, we had cash, cash equivalents and investments of $141.6 million. Cash in excess of immediate requirements is invested in accordance with our investment policy, primarily with a view to liquidity and capital preservation. Currently, our funds are held in money market mutual funds consisting of U.S. government-backed securities.
We have financed our operations to date primarily through the public offering and private placement of our equity, debt financing, and funding from collaborations and patent assignments. Duringassignments, asset sales and other arrangements. In February 2014, we completed our initial public offering, or IPO, whereby we sold 6,649,690 shares of common stock at a price to the public of $14.00 per share, raising aggregate net proceeds of $83.1 million. DuringIn March 2015, we sold 3,300,000 shares of common stock through an underwritten public offering at a price to the public of $15.15 per share, raising aggregate net proceeds of $46.7 million. In January 2020, we sold 5,735,283 shares of common stock through an underwritten public offering at a price to the public of $9.92 per share. At the same time, we sold to a certain existing investor pre-funded warrants to purchase up to an aggregate of 1,800,000 shares of common stock at a purchase price of $9.919 per pre-funded warrant, which represents the per share public offering price for the common stock less the $0.001 per share exercise price for each pre-funded warrant. The aggregate net proceeds from the 2020 Financing was $70.1 million.
In June 2015,July 2017, we received proceedscompleted the sale of $50.2worldwide development and commercialization rights to CTP-656, now known as VX-561, and other assets related to the treatment of cystic fibrosis to Vertex pursuant to the Vertex Agreement. We received
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$160.0 million in connectioncash upon closing, with the change$16.0 million initially held in control payment from Auspex, relatingescrow, which was released to Teva Pharmaceutical Industries Ltd.’s acquisition of Auspex, discussed furtherus in Note 13 in the consolidated financial statements.
On July 25, 2017,February 2019. In May 2021, we entered into the Vertex Asset Purchase Agreement, discussed furtherAmendment and received an additional $32.0 million in cash. For additional information concerning the revenue arrangement with Vertex, see Note 1412 to the consolidated financial statements appearing elsewhere in this Annual reportReport on Form 10-K, was completed and Vertex paid us $16010-K.
In March 2019, we entered into the ATM Agreement with Jefferies. As of December 31, 2021, we had sold 2,209,687 shares of our common stock pursuant to the ATM Agreement for aggregate net proceeds of $25.2 million, after payment of cash commissions of 3.0% of the gross proceeds to Jefferies.
In November 2021, we closed the 2021 Financing, raising $64.4 million in cash consideration,aggregate net proceeds. The 2021 Financing consisted of the sale of (i) 13,997 shares of Series X1 Preferred Stock, (ii) 2,253,000 shares of common stock, (iii) warrants to purchase up to 16,250 shares of Series X1 Preferred Stock and (iv) a portion of our right to receive potential future AVP-786 royalties under the Avanir Agreement. If the warrants issued in connection with $16 millionthe 2021 Financing are exercised in full, we would receive additional gross proceeds of such consideration to initially be held in escrow.$103.1 million.
As of December 31, 20172021, we had net working capital of $134.2 million. We have incurred cumulative net losses of $349.5 million since inception and require capital to continue future development activities. We do not have any products approved for sale and have not generated any revenue from product sales. We have financed our operations primarily through the public offering and private placement of our equity, debt financing, funding from collaborations and patent assignments, asset sales and other arrangements. We expect our expenses to increase in connection with our ongoing activities, particularly as we conduct our Phase 3 clinical program of CTP-543 in alopecia areata and seek marketing approval for CTP-543. For information regarding our recently completed equity financings, see Notes 13-15 to the consolidated financial statements appearing elsewhere in this Annual Report on Form 10-K.
We are subject to risks common to companies in the biotechnology industry, including, but not limited to, risks of failure or unsatisfactory results of nonclinical studies and clinical trials, the need to obtain additional financing to fund the future development of our pipeline, the need to obtain marketing approval for our product candidates, the need to successfully commercialize and gain market acceptance of our product candidates, dependence on key personnel, protection of proprietary technology, compliance with government regulations, development by competitors of technological innovations and ability to transition from pilot-scale manufacturing to large-scale production of products.
Under ASC Topic 205-40, Presentation of Financial Statements - Going Concern, management is required at each reporting period to evaluate whether there are conditions and events, considered in the aggregate, that raise substantial doubt about an entity’s ability to continue as a going concern within one year after the date that the financial statements are issued. This evaluation initially does not take into consideration the potential mitigating effect of management’s plans that have not been fully implemented as of the date the financial statements are issued. When substantial doubt exists, management evaluates whether the mitigating effect of our plans sufficiently alleviates the substantial doubt about our ability to continue as a going concern. The mitigating effect of management’s plans, however, is only considered if both (i) it is probable that the plans will be effectively implemented within one year after the date that the financial statements are issued and (ii) it is probable that the plans, when implemented, will mitigate the relevant conditions or events that raise substantial doubt about our ability to continue as a going concern within one year after the date that the financial statements are issued. Generally, to be considered probable of being effectively implemented, the plans must have been approved by our board of directors before the date that the financial statements are issued.
Successful completion of our development programs and, ultimately, the attainment of profitable operations are dependent upon future events, including obtaining adequate financing to support our cost structure and operating plan. Our plans to alleviate our financing requirements include, among other things, pursuing one or more of the following steps to raise additional capital, none of which can be guaranteed or are entirely within our control:
raise funding through the sale of our common or preferred stock;
raise funding through debt financing; and
establish collaborations with potential partners to advance our product pipeline.
Based on our current operating plan, we believe that our current cash, and cash equivalents and investments will allow us to meet our liquidity requirements into the fourth quarter of $203.2 million. Cash2022. Our history of significant losses, our negative cash flows from operations, our limited liquidity resources currently on hand and our dependence on our ability to obtain additional financing to fund our operations after the current resources are exhausted, about which there can be no certainty, have resulted in excessour assessment that there is substantial doubt about our ability to continue as a going concern for a period of immediate requirementsat least twelve months from the issuance date of this Annual Report on Form 10-K. The accompanying consolidated financial statements have been prepared on a going concern basis, which contemplates the realization of assets and the satisfaction of liabilities in the normal course of business, and do not include any adjustments that may result from the outcome of this uncertainty.
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If we are unable to raise capital when needed or on acceptable terms, or if we are unable to procure collaboration arrangements to advance our programs, we would be forced to discontinue some of our operations or develop and implement a plan to further extend payables, reduce overhead or scale back our current operating plan until sufficient additional capital is invested in accordance with our investment policy, primarily withraised to support further operations. There can be no assurance that such a view to liquidity and capital preservation. Currently, our funds are held in U.S. government-backed securities and money market mutual funds consisting of U.S. government-backed securities.plan would be successful.
Cash flows
The following table sets forth the primary sources and uses of cash for each of the periods set forth below:presented:
 Year ended December 31,
(in thousands)20212020
Net cash (used in) provided by:
Operating activities$(55,154)$(69,037)
Investing activities52,458 344 
Financing activities67,130 92,852 
Net increase in cash, cash equivalents and restricted cash$64,434 $24,159 
  Year ended December 31,
(in thousands) 2017 2016 2015
Net cash provided by (used in):      
Operating activities $102,927
 $(45,343) $23,061
Investing activities (121,307) (7,213) 14,569
Financing activities 5,490
 601
 41,484
Net (decrease) increase in cash and cash equivalents $(12,890) $(51,955) $79,114
ComparisonDiscussion of the years ended December 31, 2017, 20162021 and 20152020

Operating activities. The cash provided by or used forin operating activities generally approximates our net income (loss)loss adjusted for non-cash items and changes in operating assets and liabilities. The cash provided by operating activities duringDuring the year ended December 31, 20172021, our operating activities used cash of $55.2 million as compared to cash used by operating activities of $69.0 million during the prior year. The cash used during 2021 was primarily the result of the receipt of $144 million upon the closing of the CTP-656 asset sale to Vertex in July 2017, partially offsetlargely driven by our development activities associated with CTP-656,CTP-543, whereas the cash used during 2020 was largely driven by our development activities associated with CTP-543 and research. The cashCTP-692.
Cash used duringin operating activities for the year ended December 31, 2016 was largely driven by Phase 1 clinical studies and other development activities associated with CTP-656 and CTP-543. The2021 includes $32 million in cash received from Vertex in exchange for the removal of the Milestone Obligation, as discussed further in Note 12 to the consolidated financial statements appearing elsewhere in this Annual Report on Form 10-K.
Investing activities. Net cash provided by operatinginvesting activities duringconsisted of proceeds from the maturity of investments, purchases of investments and purchases of fixed assets. We did not purchase investments for the year ended December 31, 2015 was due to2021, whereas the receipt of $50.2 million from Auspex for a change in control payment partially offset by research and development and general and administrative operating expenses during the year.


Investing activities. Net cash used in investing activities consisted of purchases of investments, purchases of fixed assets, and proceeds from the maturity of investments. Netnet cash used to purchase investments for the yearsyear ended December 31, 2017, 2016 and 20152020 was $206.2 million, $132.3 million and $163.0 million, respectively.$156.7 million. Net cash provided by maturities of investments for the years ended December 31, 2017, 20162021 and 20152020 was $85.8 million, $125.9$52.7 million and $178.5$157.2 million, respectively. Purchases of fixed assets for the years ended December 31, 2017, 20162021 and 2015 was $0.9 million, $0.82020 were $0.3 million and $0.9$0.2 million, respectively. The increase in the purchase of investments during the 2020 period is primarily due to the management of funds received from the 2020 Financing, as discussed further in Note 15 to the consolidated financial statements appearing elsewhere in this Annual Report on Form 10-K.

Financing activities. During the years ended December 31, 2017, 2016,2021 and 2015,2020, our financing activities providedgenerated cash of $5.5 million, $0.6$67.1 million and $41.5$92.9 million, respectively. DuringCash generated during the 2017 period, cash provided by financing activities was largely driven by theyear ended December 31, 2021 consisted of $64.4 million of aggregate net proceeds from the 2021 Financing, $2.6 million of $29.7aggregate net proceeds pursuant to the ATM Agreement and $0.1 million under our Loan Agreement with Hercules in June 2017 andof proceeds from the exercise of stock options of $6.6 million, partially offset by the prepayment of our Loan Agreement with Hercules in September 2017. The cash provided by financing activitiesoptions. Cash generated during the year ended December 31, 2016 was attributable2020 consisted of $70.1 million of aggregate net proceeds from the 2020 Financing, $22.0 million of aggregate net proceeds pursuant to the ATM Agreement and $0.8 million of proceeds from the exercise of stock options of $0.6 million. The cash provided by financing activities during the year ended December 31, 2015 was primarily due to the receipt of net public offering proceeds of $47.0 million in March 2015 and proceeds from the exercise of stock options of $1.8 million, offset by the repayment of the Hercules debt facility entered into in December 2011.
Credit Facilities
In December 2011, we executed a Loan and Security Agreement with Hercules, which provided for up to $20.0 million in funding, to be made available in two tranches. We borrowed the first tranche of $7.5 million in December 2011 and the second tranche of $12.5 million in March 2012. On October 1, 2015, we made our final payment to Hercules, thereby fulfilling all obligations under the Loan and Security Agreement. Through the maturity date on October 1, 2015, each advance had an interest rate of 8.5%.
In connection with the December 2011 borrowing under the Loan and Security Agreement, we issued to Hercules a warrant to purchase an aggregate of 200,000 shares of Series C preferred stock with an exercise price of $2.50 per share. In connection with the March 2012 borrowing under the Loan and Security Agreement, the warrant we issued to Hercules automatically became exercisable for an additional 200,000 shares of Series C preferred stock. Upon completion of our IPO in February 2014 the warrant became exercisable for an aggregate of 70,796 shares of our common stock at an exercise price of $14.13 per share and the related warrant liability was reclassified to additional paid-in capital.
On June 8, 2017, we entered into a Loan Agreement with Hercules, which provided for up to $30.0 million in funding, through a single advance. We incurred $0.3 million in loan issuance costs paid directly to the lenders, which was offset against the loan proceeds as a loan discount. The advance under the Loan and Security Agreement bore interest at a variable rate of the greater of 8.55% and an amount equal to 8.55% plus the prime rate of interest minus 4.50%.
Pursuant to the Loan Agreement, we had the option to prepay the principal of the Loan Agreement at any time subject to a prepayment charge; however the prepayment charge was waived upon the completion of the sale of CTP-656 to Vertex, discussed further in Note 14, and the prepayment of the Term Loan Facility after the 90th day following the closing date of the Loan Agreement but prior to the six month anniversary of the closing date of the Loan Agreement.
On September 7, 2017, we paid a total of $30.8 million to Hercules, representing the principal, accrued and unpaid interest, fees, costs and expenses outstanding under the Loan Agreement. Upon the payment of the $30.8 million pursuant to a payoff letter between the Company and Hercules, all outstanding indebtedness and obligations of the Company owed to Hercules under the Loan Agreement were paid in full, and the Loan Agreement was terminated.
In connection with the entry into the Loan Agreement, we issued warrants (the "Warrants") to certain entities affiliated with Hercules, exercisable for an aggregate of 61,273 shares of the Company’s common stock at an exercise price of $12.24 per share. The Warrants have a five year term, expiring June 8, 2022, and may be exercised on a cashless basis. The Hercules Warrants had a total relative fair value of $0.5 million upon issuance and were recorded as a debt discount.options.
Operating capital requirements

We do not anticipate commercializing any of our product candidates for several years. Although we generated net income in 2017 and 2015 due to one-time payments from Vertex and Auspex, respectively, weuntil 2024 at the earliest. We anticipate that we will continue to generate losses for the foreseeable future, and we expect the losses to increase as we continue the development of, and seek regulatory


marketing approvals for, our product candidates, and begin to commercialize any approved products for which we retain commercialization rights. We are subject to all of the risks incident in the development of new drug products, and we may encounter unforeseen expenses, difficulties, complications, delays and other unknown factors that may adversely affect our business, as well as additional risks stemming from the unproven nature of deuterated drugs.

Based on our current expectations, including with respect to our development plans, we believe our existing cash and cash equivalents and investments as of December 31, 2017 will enable us to fund our operating expenses and capital expenditure requirements into 2021. However, we will require additional capital for the further development of our existing product candidates and may also need to raise additional funds sooner to pursue other development activities related to additional product candidates.

To date, we have not generated any revenue from product sales. We do not expect to generate significant revenue from product sales unless and until we, or our collaborators, obtain marketing approval of and commercialize one of our current or future product candidates. Because our product candidates are in various stages of development and the outcome of these efforts is
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uncertain, we cannot estimate the actual amounts necessary to successfully complete development and commercialization of our product candidates or whether or when we will achieve profitability. We anticipate that we will continue to generate losses for the foreseeable future, and we expect the losses to increase as we continue the development of, and seek marketing approvals for, our product candidates, and begin to commercialize any approved products for which we retain commercialization rights.

Until such time, if ever, as we can generate substantial product revenues, we expect to finance our cash needs through a combination of equity offerings, debt financings, and additional collaborations, strategic alliancescollaboration and licensing arrangements and other arrangements.sources. Except for any obligations of our collaborators to reimburse us for research and development expenses or to make milestone payments under our agreements with them, we do not have any additional committed external sources of funds. Additional capital may not be available on reasonable terms, if at all. If we are unable to raise additional funds when needed, we may be required to delay, limit, reduce or terminate our product development or future commercialization efforts or grant rights to develop and market product candidates that we would otherwise prefer to develop and market ourselves. If we raise additional funds through the issuance of additional debtequity or equitydebt securities, it could result in dilution to our existing stockholders, increased fixed payment obligations and thesethe issuance of securities may havewith rights senior to those of our common stock. We may become subject to covenants under any future indebtedness that could limit our ability to take specific actions, such as incurring additional debt, making capital expenditures or declaring dividends, which could adversely impact our ability to conduct our business.

Our expectation with respect to the period of time through which our financial resources will be adequate to support our operations is a forward-looking statement and involves risks and uncertainties, and actual results could vary as a result of a number of factors, including those discussed in the “Risk Factors”"Risk Factors" section in Part I, Item 1A. of this Annual Report on Form 10-K. We have based this estimate on assumptions that may prove to be wrong, and we could utilize our available capital resources sooner than we currently expect. If we cannot expand our operations or otherwise capitalize on our business opportunities because we lack sufficient capital, our business, financial condition and results of operations could be materially adversely affected.
Contractual obligations
The following table summarizes our contractual obligations at December 31, 2017:
(in thousands) Total 
Less than
1 year
 
1 to 3
years
 
3 to 5
years
 
More than
5 years
Operating lease obligations(1)
 $1,208
 $1,208
 $
 $
 $
Operating lease obligations(2)
 31,348
 
 8,104
 9,376
 13,868
Total contractual obligations $32,556
 $1,208
 $8,104
 $9,376
 $13,868
(1)Consists of future lease payments under the operating lease for our office and laboratory space at 99 Hayden Avenue, Lexington, Massachusetts. The operating lease expires on September 30, 2018.
(2)Consists of future lease payments under the new operating lease signed on December 21, 2017 for our office and laboratory at 65 Hayden Avenue, Lexington, Massachusetts. The operating lease expires ten years after the Base Rent Commencement Date, defined in the lease, with two optional extension terms of five years each.


We have an obligation to make a payment to GSK of up to $2.8 million if we commercialize CTP-499 or if we receive cash proceeds from re-licensing or transferring the rights to our CTP-499 program.
We enter into contracts in the normal course of business with contract research organizations for clinical and nonclinical research studies, manufacturing, research supplies and other services and products for operating purposes. These contracts generally provide for termination on notice, and therefore are cancelable contracts and not included in the table of contractual obligations and commitments.
OFF-BALANCE SHEET ARRANGEMENTS
We did not have during the periods presented, and we do not currently have, any off-balance sheet arrangements, as defined in the rules and regulations of the SEC.

ITEM 7A.Quantitative and Qualitative Disclosures About Market Risk

We are exposeda smaller reporting company as defined by Rule 12b-2 of the Exchange Act and are not required to market risk related to changes in interest rates.  Our current investment policy is to maintain a diversified investment portfolio in U.S. government-backed securities and money market mutual funds consisting of U.S. government-backed securities. Our cash is deposited in and invested through highly rated financial institutions in North America. As of December 31, 2017 and 2016, we had $203.2 million and $96.2 million of cash, cash equivalents and investments, respectively. The fair value of cash equivalents and short-term investments is subject to change as a result of potential changes in market interest rates. Due toprovide the short-term maturities of our cash equivalents and the low risk profile of these investments, an immediate 100 basis point change in interest rates at levels as of December 31, 2017 would not have a material effect on the fair market value of our cash equivalents and short term investments.information required by this Item.

We contract with suppliers of raw materials and contract manufacturers internationally. Transactions with these providers are predominantly settled in U.S. dollars and, therefore, we believe that we have only minimal exposure to foreign currency exchange risks. We do not hedge against foreign currency risks.

Inflation generally affects us by increasing our cost of labor and clinical trial costs. We do not believe that inflation had a material effect on our business, financial condition or results of operations during the years ended December 31, 2017, 2016 or 2015.


ITEM 8.Financial Statements and Supplementary Data
INDEX TO FINANCIAL STATEMENTS



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Report of Independent Registered Public Accounting Firm
To the Stockholders and the Board of Directors of Concert Pharmaceuticals, Inc.

Opinion on the Financial Statements
We have audited the accompanying consolidated balance sheets of Concert Pharmaceuticals, Inc. (the “Company“(“the Company”) as of December 31, 20172021 and 2016,2020, the related consolidated statements of operations and comprehensive income (loss),loss, stockholders’ equity and cash flows for each of the threetwo years in the period ended December 31, 2017,2021, and the related notes (collectively(collectively referred to as the “consolidated financial statements”). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company at December 31, 20172021 and 2016,2020, and the results of its operations and its cash flows for each of the threetwo years in the period ended December 31, 2017,2021, in conformity with U.S. generally accepted accounting principles.

The Company’s Ability to Continue as a Going Concern
The accompanying consolidated financial statements have been prepared assuming that the Company will continue as a going concern. As discussed in Note 1 to the consolidated financial statements, the Company has suffered recurring losses from operations and has stated that substantial doubt exists about the Company’s ability to continue as a going concern. Management’s evaluation of the events and conditions and management’s plans regarding these matters are also described in Note 1. The consolidated financial statements do not include any adjustments that might result from the outcome of this uncertainty.
Basis for Opinion
These financial statements are the responsibility of the Company‘sCompany’s management. Our responsibility is to express an opinion on the Company‘sCompany’s financial statements based on our audits.audit. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB)(“PCAOB”) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our auditsaudit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. The Company is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. As part of our auditsaudit, we are required to obtain an understanding of internal control over financial reporting but not for the purpose of expressing an opinion on the effectiveness of the Company’s internal control over financial reporting. Accordingly, we express no such opinion.

Our auditsaudit included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures includeincluded examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our auditsaudit also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audits provideaudit provides a reasonable basis for our opinion.
Critical Audit Matters
The critical audit matters communicated below are matters arising from the current period audit of the financial statements that were communicated or required to be communicated to the audit committee and that: (1) relate to accounts or disclosures that are material to the financial statements and (2) involved our especially challenging, subjective or complex judgments. The communication of critical audit matters does not alter in any way our opinion on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matters below, providing separate opinions on the critical audit matters or on the accounts or disclosures to which they relate.
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Prepaid and Accrued Contract Research and Development Expenses
Description of the Matter
The Company’s total accrued expenses were $12.4 million as of December 31, 2021, which included the obligation for contract research and development expenses incurred as of December 31, 2021 but not paid as of that date. In addition, the Company’s total prepaid expenses were $7.0 million as of December 31, 2021, which included amounts that were paid in advance of services provided in connection with its contract research and development.
As discussed in Note 2 of the consolidated financial statements, the Company contracts with service providers to conduct research and development on its behalf, and the amount of expense recorded in the consolidated financial statements is based in part on third-party information which includes the services provided and efforts expended under these arrangements. Given the nature and significance of contract research and development expenses, subjective auditor judgement was required to evaluate the evidence obtained to support the amounts accrued and prepaid for costs associated with the services provided.

How We Addressed the Matter in Our AuditTo evaluate the evidence obtained to support the amounts accrued and prepaid for costs associated with services provided for contract research and development as of December 31, 2021, our audit procedures included, among others, testing the accuracy and completeness of the data used to derive the recorded amounts. We also inquired of the Company’s research and development personnel overseeing the contract research and development regarding the progress of clinical trials and evaluated the completeness and valuation of the prepaid and accrued contract research and development expenses. We compared invoices received by the Company subsequent to December 31, 2021 to the total costs recognized by the Company as of that date, and we inspected significant contracts, including any pending change orders, between the Company and service providers conducting research and development on its behalf.
Accounting for 2021 Sale of Common and Preferred Stock, Warrants and Royalty Interest
Description of the Matter
As described in Note 14 to the consolidated financial statements, in November 2021, the Company entered into the 2021 sale of common and preferred stock, warrants and royalty interest (the “2021 Financing”), which was a structured financing consisting of a securities purchase agreement, warrant agreements and a royalty purchase agreement. Pursuant to the 2021 Financing, the Company received aggregate gross proceeds of $65 million in exchange for the sale of 13,997 shares of Series X1 Preferred Stock, 2,253,000 shares of common stock, warrants to purchase up to 16,250 shares of Series X1 Preferred Stock and a portion of the Company’s right to receive certain potential future royalties.

Auditing the Company’s accounting for the 2021 Financing was complex due to the judgment that was required in determining the balance sheet classification of the elements of the 2021 Financing. Additionally, a detailed analysis of the terms of the 2021 Financing was required to determine the existence of any derivatives that may require separate accounting under applicable accounting guidance.
How We Addressed the Matter in Our AuditTo test the initial accounting for the 2021 Financing, our audit procedures included, among others, inspection of the agreements underlying the 2021 Financing and testing management's application of the relevant accounting guidance, including the determination of the balance sheet classification of each element of the 2021 Financing and the identification of any derivatives included in the arrangements. We involved professionals with specialized skill and knowledge to assist in evaluating the appropriateness of the accounting for the elements of the 2021 Financing, including conclusions reached with respect to the balance sheet classification of each of the elements as well as the identification of embedded features or derivatives that require separate accounting.
/s/ Ernst & Young LLP
We have served as the Company'sCompany’s auditor since 2007.
Boston, Massachusetts
March 1, 2018



3, 2022
77
CONCERT PHARMACEUTICALS, INC.
CONSOLIDATED BALANCE SHEETS
  December 31,
  2017 2016
  
(Amounts in thousands, except
share and per share data)
Assets    
Current assets:    
Cash and cash equivalents $27,665
 $40,555
Investments, available for sale 175,500
 55,630
Interest receivable 628
 164
Accounts receivable 155
 27
Prepaid expenses and other current assets 1,786
 1,353
Total current assets 205,734
 97,729
Property and equipment, net 2,165
 2,199
Restricted cash 1,557
 400
Other assets 34
 67
Income taxes receivable 2,246
 
Total assets $211,736
 $100,395
Liabilities and stockholders’ equity    
Current liabilities:    
Accounts payable $658
 $545
Accrued expenses and other liabilities 4,299
 3,853
Income taxes payable 46
 
Deferred revenue, current portion 1,442
 1,172
Total current liabilities 6,445
 5,570
Deferred revenue, net of current portion 8,859
 8,878
Deferred lease incentive, net of current portion 
 249
Deferred rent, net of current portion 
 104
Total liabilities 15,304
 14,801
Commitments (Note 11) 
 
Stockholders’ equity:    
Preferred stock, $0.001 par value per share; 5,000,000 shares authorized; no shares issued and outstanding in 2017 and 2016, respectively 
 
Common stock, $0.001 par value per share; 100,000,000 shares authorized; 23,147,779 and 22,319,516 shares issued and 23,140,378 and 22,316,982 outstanding in 2017 and 2016 , respectively 23
 22
Additional paid-in capital 273,059
 257,461
Accumulated other comprehensive loss (407) (7)
Accumulated deficit (76,243) (171,882)
Total stockholders’ equity 196,432
 85,594
Total liabilities and stockholders’ equity $211,736
 $100,395


CONCERT PHARMACEUTICALS, INC.
CONSOLIDATED BALANCE SHEETS
 December 31,
 20212020
 (Amounts in thousands, except
share and per share data)
Assets
Current assets:
Cash and cash equivalents$141,636 $77,202 
Investments, available for sale— 52,766 
Marketable equity securities1,463 1,969 
Interest receivable— 145 
Deferred offering costs15 — 
Accounts receivable218 686 
Income taxes receivable, current— 2,346 
Prepaid expenses and other current assets6,997 7,610 
Total current assets150,329 142,724 
Property and equipment, net5,242 6,363 
Restricted cash1,157 1,157 
Other assets51 
Operating lease right-of-use assets, long-term8,585 8,968 
Total assets$165,316 $159,263 
Liabilities and stockholders’ equity
Current liabilities:
Accounts payable$2,606 $230 
Accrued expenses and other liabilities, current portion12,359 9,017 
       Lease liability, current portion1,155 931 
Total current liabilities16,120 10,178 
Accrued expenses, net of current portion28 108 
Deferred revenue, long-term7,595 2,750 
Lease liability, net of current portion13,910 15,065 
Warrant liabilities, long-term (Note 14)15,438 — 
Total liabilities53,091 28,101 
Commitments (Note 11)00
Stockholders’ equity:
Preferred stock, $0.001 par value per share; 5,000,000 shares authorized; 32,500 shares designated as Series X1; 13,997 shares of Series X1 issued and outstanding as of December 31, 2021; and no shares issued and outstanding as of December 31, 2020— — 
Common stock, $0.001 par value per share; 100,000,000 shares authorized; 34,939,628 and 32,062,799 shares issued and 34,739,027 and 31,862,198 outstanding as of December 31, 2021 and 2020, respectively34 31 
Additional paid-in capital461,765 400,636 
Accumulated other comprehensive loss(76)(58)
Accumulated deficit(349,498)(269,447)
Total stockholders’ equity112,225 131,162 
Total liabilities and stockholders’ equity$165,316 $159,263 
See accompanying notes.

78





CONCERT PHARMACEUTICALS, INC.
CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS
 Year ended
December 31,
 20212020
 (Amounts in thousands, except per
share data)
Revenue:
License and research and development revenue$39 $7,902 
Other revenue32,539 — 
Total revenue32,578 7,902 
Operating expenses:
Research and development87,555 61,624 
General and administrative22,531 18,925 
Total operating expenses110,086 80,549 
Loss from operations(77,508)(72,647)
Investment income46 1,202 
Unrealized loss on marketable equity securities(506)(3,406)
Unrealized loss on warrant liabilities (Note 14)(2,083)— 
Loss before income taxes(80,051)(74,851)
Income tax benefit— 85 
Net loss$(80,051)$(74,766)
Other comprehensive income:
Unrealized loss on investments, available for sale(18)(27)
Comprehensive loss$(80,069)$(74,793)
Net loss attributable to common stockholders - basic and diluted$(80,051)$(74,766)
Net loss per share attributable to common stockholders - basic and diluted$(2.33)$(2.40)
Weighted-average number of common shares used in net loss per share attributable to common stockholders - basic and diluted34,405 31,200 
See accompanying notes.

79
CONCERT PHARMACEUTICALS, INC.
CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS)
  
Year ended
December 31,
  2017 2016 2015
  
(Amounts in thousands, except per
share data)
Revenue:      
License and research and development revenue $62
 $174
 $6,574
Other revenue (Note 14 and Note 13) 143,829
 
 50,155
Milestone revenue 
 
 10,000
Total revenue 143,891
 174
 66,729
Operating expenses:      
Research and development 30,223
 36,983
 28,885
General and administrative 21,019
 14,358
 13,056
Total operating expenses 51,242
 51,341
 41,941
Income (Loss) from operations 92,649
 (51,167) 24,788
Investment income 1,336
 447
 124
Other income (Note 16) 3,601
 
 
Interest and other expense (815) 
 (309)
Loss on extinguishment of debt (Note 15) (1,432) 
 
Income (Loss) before income taxes 95,339
 (50,720) 24,603
(Benefit) Provision for income taxes (300) 
 429
Net income (loss) $95,639
 $(50,720) $24,174
Other comprehensive (loss) income:      
Unrealized (loss) income on investments, net of tax (400) 11
 (4)
Comprehensive income (loss) $95,239
 $(50,709) $24,170
       
Net income (loss) attributable to common stockholders: 

 

 

Basic $95,195

$(50,720)
$24,174
Diluted $95,210
 $(50,720) $24,174
       
Net income (loss) per share attributable to common stockholders:      
Basic $4.20
 $(2.28) $1.14
Diluted $4.06
 $(2.28) $1.09
       
Weighted-average number of common shares used in net income (loss) per share attributable to common stockholders:      
Basic 22,641
 22,233
 21,152
Diluted 23,442
 22,233
 22,267


CONCERT PHARMACEUTICALS, INC.
CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY
 Preferred StockCommon StockAdditional paid-in capitalAccumulated other comprehensive lossAccumulated deficitTotal stockholders’ equity
 IssuedAmountIssuedIn TreasuryAmount
 (in thousands)
Balance at December 31, 2019— $— 24,066 200 $24 $296,145 $(31)$(194,681)$101,457 
Exercise of stock options— — 117 — — 833 — — 833 
Release of restricted stock units— — 136 — — — — — — 
Unrealized loss on short-term investments— — — — — — (27)— (27)
Stock-based compensation expense— — — — — 11,113 — — 11,113 
Proceeds from at-the-market offering, net of issuance costs— — 2,008 — 22,486 — — 22,488 
Sale of common stock and pre-funded warrants (2020 Financing), net of underwriters’ discount and costs— — 5,735 — 70,059 — — 70,064 
Net loss— — — — — — — (74,766)(74,766)
Balance at December 31, 2020— $— 32,062 200 $31 $400,636 $(58)$(269,447)$131,162 
Exercise of stock options— — 24 — — 138 — — 138 
Release of restricted stock units— — 434   — — — — 
Unrealized loss on short-term investments— — —   — (18)— (18)
Stock-based compensation expense— — —   12,572 — — 12,572 
Proceeds from at-the-market offering, net of issuance costs— — 165   2,042 — — 2,042 
Sale of common and preferred stock, warrants and royalty interest (2021 Financing), net of issuance costs14 — 2,253 — 46,377 — — 46,380 
Net loss— — — — — — — (80,051)(80,051)
Balance at December 31, 202114 $— 34,938 200 $34 $461,765 $(76)$(349,498)$112,225 
See accompanying notes.



80
CONCERT PHARMACEUTICALS, INC.
CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY
  Common Stock Additional paid-in capital Accumulated other comprehensive income Accumulated deficit Total stockholders’ equity
  Issued In Treasury Amount 
  (in thousands)
Balance at December 31, 2014 18,234
 
 $18
 $200,157
 $(14) $(145,336) $54,825
Proceeds from public offering of common stock, net of underwriting discounts and offering expenses 3,300
 
 3
 46,682
 
 
 46,685
Exercise of stock options 633
 2
 1
 1,843
 
 
 1,844
Unrealized loss on short-term investments 
 
 
 
 (4) 
 (4)
Stock-based compensation expense 
 
 
 2,981
 
 
 2,981
Income tax benefit from option exercises       130
     130
Net income 
 
 
 
 
 24,174
 24,174
Balance at December 31, 2015 22,167
 2
 $22
 $251,793
 $(18) $(121,162) $130,635
Exercise of stock options 153
 1
 
 601
 
 
 601
Unrealized gain on short-term investments 
 
 
 
 11
 
 11
Stock-based compensation expense 
 
 
 5,067
 
 
 5,067
Net loss 
 
 
 
 
 (50,720) (50,720)
Balance at December 31, 2016 22,320
 3
 $22
 $257,461
 $(7) $(171,882) $85,594
Exercise of stock options 828
 5
 1
 6,586
 
 
 6,587
Unrealized loss on short-term investments, net of tax 
 
 
 
 (400) 
 (400)
Stock-based compensation expense 
 
 
 8,500
 
 
 8,500
Stock warrants       512
 
 
 512
Net income 
 
 
 
 
 95,639
 95,639
Balance at December 31, 2017 23,148
 8
 $23
 $273,059
 $(407) $(76,243) $196,432


CONCERT PHARMACEUTICALS, INC.
CONSOLIDATED STATEMENTS OF CASH FLOWS
 Year ended December 31,
 20212020
Operating activities(in thousands)
Net loss$(80,051)$(74,766)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization1,479 1,605 
Stock-based compensation expense12,572 11,113 
Amortization of premiums on investments35 48 
Non-cash lease expense383 284 
Unrealized loss on marketable equity securities506 3,406 
Unrealized loss on warrant liabilities2,083 — 
Loss (gain) on disposal of asset(2)
Changes in operating assets and liabilities:
Accounts receivable(65)(81)
Interest receivable145 115 
Prepaid expenses and other current assets613 (3,043)
Other assets48 45 
Accounts payable2,264 (651)
Accrued expenses and other liabilities3,413 929 
Income taxes receivable2,346 12 
Operating lease liability(931)(268)
Deferred revenue— (7,783)
Net cash used in operating activities(55,154)(69,037)
Investing activities
Purchases of property and equipment(255)(210)
Purchases of investments— (156,671)
Maturities of investments52,713 157,225 
Net cash provided by investing activities52,458 344 
Financing activities
Proceeds from at-the-market offering, net of issuance costs2,575 21,955 
Proceeds from exercise of stock options138 833 
Proceeds from common stock and pre-funded warrants sold (2020 Financing), net of underwriters’ discount and costs— 70,064 
Proceeds from common and preferred stock, warrants and royalty interest sold (2021 Financing), net of issuance costs64,417 — 
Net cash provided by financing activities67,130 92,852 
Net increase in cash, cash equivalents and restricted cash64,434 24,159 
Cash, cash equivalents and restricted cash at beginning of period78,359 54,200 
Cash, cash equivalents and restricted cash at end of period$142,793 $78,359 
Supplemental cash flow information:
Purchases of property and equipment unpaid at period end$112 $
Public offering costs unpaid at period end$300 $— 
Cash paid included in measurement of lease liabilities$2,969 $2,406 
Warrants issued$13,355 $16,736 
See accompanying notes.


CONCERT PHARMACEUTICALS, INC.
CONSOLIDATED STATEMENTS OF CASH FLOWS
  
Year ended
December 31,
  2017 2016 2015
  (in thousands)
Operating activities      
Net income (loss) $95,639
 $(50,720) $24,174
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: 
 
 
Depreciation and amortization 1,008
 893
 785
Stock-based compensation expense 8,500
 5,067
 2,981
Accretion of premiums and discounts on investments 90
 504
 715
Amortization of discount on loan payable 166
 
 74
Amortization of deferred financing costs 
 
 29
Amortization of deferred lease incentive (324) (315) (308)
Loss on disposal of asset 46
 2
 4
Loss on extinguishment of debt 1,432
 
 
Changes in operating assets and liabilities:      
Accounts receivable (107) 43
 951
Interest receivable (464) 17
 81
Prepaid expenses and other current assets (433) 314
 (491)
Restricted cash (1,157) 
 
Other assets 33
 11
 23
Accounts payable 113
 44
 (90)
Accrued expenses and other liabilities 436
 (957) (223)
Income taxes receivable (2,246) 
 
Income taxes payable 46
 (75) 75
Deferred rent (102) (51) (68)
Deferred revenue 251
 (120) (5,651)
Net cash provided by (used in) operating activities 102,927
 (45,343) 23,061
Investing activities      
Purchases of property and equipment (947) (770) (868)
Purchases of investments (206,207) (132,344) (163,025)
Maturities of investments 85,847
 125,901
 178,462
Net cash (used in) provided by investing activities (121,307) (7,213) 14,569
Financing activities      
Proceeds from loan, net 29,659
 
 
Repayment of loan (30,745) 
 (7,175)
Proceeds from public offering of common stock, net of underwriting discounts and commissions 
 
 46,995
Proceeds from exercise of stock options 6,576
 601
 1,844
Income tax benefit from exercise of stock options 
 
 130
Payment of public offering costs 
 
 (310)
Net cash provided by financing activities 5,490
 601
 41,484
Net (decrease) increase in cash and cash equivalents (12,890) (51,955) 79,114
Cash and cash equivalents at beginning of period 40,555
 92,510
 13,396
Cash and cash equivalents at end of period $27,665
 $40,555
 $92,510
Supplemental cash flow information:      
Cash paid for income taxes $1,900
 $75
 $225
Cash paid for interest $648
 $
 $287
Purchases of property and equipment unpaid at period end $65
 $20
 $42
Issuance of stock warrants $512
 $
 $
81
See accompanying notes.

CONCERT PHARMACEUTICALS, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS



1. Nature of Business

Concert Pharmaceuticals, Inc., or Concert or the Company, was incorporated on April 12, 2006 as a Delaware corporation withand has its operations based in Lexington, Massachusetts. The Company is a late-stage clinical stage biopharmaceutical company that appliesis developing CTP-543, a JAK 1/2 inhibitor that it discovered through the application of its extensive knowledgeDCE Platform. The Company is evaluating CTP-543 in a Phase 3 clinical program for the treatment of deuterium chemistry to discover and develop novel small molecule drugs. The Company’s approach starts with previously studied compounds, including approved drugs, thatalopecia areata, a serious autoimmune dermatological condition. If these trials are successful, the Company believes can be improvedintends to file an NDA with deuterium substitutionthe FDA in the first half of 2023. There are currently no FDA-approved treatments for alopecia areata.
Liquidity and Going Concern
In February 2014, the Company completed its initial public offering, whereby the Company sold 6,649,690 shares of common stock at a price to provide better pharmacokinetic or metabolic properties, enhancing clinical safety, tolerability or efficacy. The Company believes this approach may enable drug discovery and clinical development that is more efficient and less expensive than conventional small molecule drug research and development. The Company’s pipeline includes multiple clinical-stage candidates and a numberthe public of preclinical compounds that it is currently assessing.
$14.00 per share, raising aggregate net proceeds of $83.1 million. In March 2015, the Company sold 3,300,000 shares of common stock in athrough an underwritten public offering at a price to the public of $15.15 per share, resulting inraising aggregate net proceeds of $46.7 million. In January 2020, the Company sold 5,735,283 shares of common stock through an underwritten public offering at a price to the public of $9.92 per share. At the same time, the Company sold to a certain existing investor pre-funded warrants to purchase up to an aggregate of approximately $46.7 million after deducting underwriting discounts and commissions and1,800,000 shares of common stock at a purchase price of $9.919 per pre-funded warrant, which represents the per share public offering expenses. price for the common stock less the $0.001 per share exercise price for each pre-funded warrant. The aggregate net proceeds the Company received from the 2020 Financing was $70.1 million.
In June 2015, the Company received a one-time payment of $50.2 million from Auspex Pharmaceuticals, Inc., or Auspex, pursuant to a patent assignment agreement between Concertthe Company and Auspex. ConcertThe Company became eligible to receive the payment due to a change of control of Auspex, which was acquired by Teva Pharmaceutical Industries Ltd. in May 2015 (see Note 13).2015.

On March 3,In July 2017, the Company entered into an Asset Purchase Agreement (the "Asset Purchase Agreement") with Vertex Pharmaceuticals, Inc., through Vertex Pharmaceuticals (Europe) Limited ("Vertex"), pursuantcompleted the sale of worldwide development and commercialization rights to which the Company agreed to sell and assign CTP-656, now known as VX-561, and other assets related to the treatment of cystic fibrosis assets of the Company, for up to $250 million subjectVertex pursuant to the satisfaction of certain closing conditions. On July 25, 2017, the transaction contemplated by the Asset Purchase Agreement closed and Vertex paid theAgreement. The Company $160received $160.0 million in cash consideration,upon closing, with $16$16.0 million to beinitially held in escrow. Additional information concerningescrow, which was released to the sale of CTP-656 is discussed furtherCompany in Note 14.

On June 8, 2017,February 2019. In May 2021, the Company entered into a Loanthe Vertex Amendment and Security Agreement ("Loan Agreement") with Hercules Capital, Inc., ("Hercules"), pursuant to which Hercules agreed to make available to the Company a secured term loan facilityreceived an additional $32.0 million in the amount of $30 million ("Term Loan Facility") subject to certain terms and conditions. On September 7, 2017, the Company paid off the outstanding obligation in full resulting in the termination of the Loan Agreement. Additionalcash. For additional information concerning the prepaymentrevenue arrangement with Vertex, see Note 12.
In March 2019, the Company entered into the ATM Agreement with Jefferies. As of December 31, 2021, the Company had sold 2,209,687 shares of its common stock pursuant to the ATM Agreement for aggregate net proceeds of $25.2 million, after payment of cash commissions of 3.0% of the Loangross proceeds to Jefferies. For additional information on the ATM Agreement, is discussed furthersee Note 13.
In November 2021, the Company closed the 2021 Financing, raising $64.4 million in Note 15.aggregate net proceeds. The 2021 Financing consisted of the sale of (i) 13,997 shares of Series X1 Preferred Stock, (ii) 2,253,000 shares of common stock, (iii) warrants to purchase up to 16,250 shares of Series X1 Preferred Stock and (iv) a portion of the Company’s right to receive potential future AVP-786 royalties under the Avanir Agreement. If the warrants issued in connection with the 2021 Financing are exercised in full, the Company would receive additional gross proceeds of $103.1 million.
TheAs of December 31, 2021, the Company had cash, and cash equivalents and investments of $203.2$141.6 million at December 31, 2017.and net working capital of $134.2 million. The Company believes that its cashhas incurred cumulative net losses of $349.5 million since inception and cash equivalents and investments at December 31, 2017 will be sufficientrequires capital to allow the Company to fund its current operating plan for at least the next twelve months from the date of issuance of the financial statements.continue future development activities. The Company may pursue additional cash resources through public or private financingsdoes not have any products approved for sale and by establishing collaborations with or licensing its technology to other companies and through other arrangements.
Since its inception, thehas not generated any revenue from product sales. The Company has generated an accumulated deficitfinanced its operations primarily through the public offering and private placement of $76.2 million through December 31, 2017. The Company's operating results may fluctuate significantlyits equity, debt financing, funding from year to year, depending on the timingcollaborations and magnitude of clinical trialpatent assignments, asset sales and other development activities underarrangements. The Company expects its current development programs. Substantially all the Company's net losses have resulted from costs incurredexpenses to increase in connection with its researchongoing activities, particularly as it conducts its Phase 3 clinical program of CTP-543 in alopecia areata and development programs and from general and administrative costs associated with its operations. The Company expects to continue to incur significant expenses and increasing operating lossesseeks marketing approval for at leastCTP-543. For information regarding the next several years.

Company’s recently completed equity financings, see Notes 13-15.
The Company is subject to risks common to companies in the biotechnology industry, including, but not limited to, risks of failure or unsatisfactory results of nonclinical studies and clinical trials, the need to obtain additional financing to fund the future development of its pipeline, the need to obtain marketing approval for its product candidates, the need to successfully commercialize and gain market acceptance of its product candidates, dependence on key personnel, protection of proprietary
82

CONCERT PHARMACEUTICALS, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
technology, compliance with government regulations, development by competitors of technological innovations and ability to transition from pilot-scale manufacturing to large-scale production of products.
Unless otherwise indicated, all amountsUnder ASC Topic 205-40, Presentation of Financial Statements - Going Concern, management is required at each reporting period to evaluate whether there are conditions and events, considered in thousands except sharethe aggregate, that raise substantial doubt about an entitys ability to continue as a going concern within one year after the date that the financial statements are issued. This evaluation initially does not take into consideration the potential mitigating effect of managements plans that have not been fully implemented as of the date the financial statements are issued. When substantial doubt exists, management evaluates whether the mitigating effect of its plans sufficiently alleviates the substantial doubt about the Companys ability to continue as a going concern. The mitigating effect of managements plans, however, is only considered if both (i) it is probable that the plans will be effectively implemented within one year after the date that the financial statements are issued and per share amounts.(ii) it is probable that the plans, when implemented, will mitigate the relevant conditions or events that raise substantial doubt about the entitys ability to continue as a going concern within one year after the date that the financial statements are issued. Generally, to be considered probable of being effectively implemented, the plans must have been approved by the Companys board of directors before the date that the financial statements are issued.
Successful completion of the Company’s development program and, ultimately, the attainment of profitable operations are dependent upon future events, including obtaining adequate financing to support the Company’s cost structure and operating plan. Management’s plans to alleviate its financing requirements include, among other things, pursuing one or more of the following steps to raise additional capital, none of which can be guaranteed or are entirely within the Company’s control:

raise funding through the sale of the Companys common or preferred stock;

raise funding through debt financing; and
establish collaborations with potential partners to advance the Company’s product pipeline.
Based on the Company’s current operating plan, management believes that its current cash, cash equivalents and investments will allow the Company to meet its liquidity requirements into the fourth quarter of 2022. The Companys history of significant losses, its negative cash flows from operations, its limited liquidity resources currently on hand and its dependence on its ability to obtain additional financing to fund its operations after the current resources are exhausted, about which there can be no certainty, have resulted in managements assessment that there is substantial doubt about the Companys ability to continue as a going concern for a period of at least twelve months from the issuance date of this Annual Report on Form 10-K. The accompanying consolidated financial statements have been prepared on a going concern basis, which contemplates the realization of assets and the satisfaction of liabilities in the normal course of business, and do not include any adjustments that may result from the outcome of this uncertainty.
If the Company is unable to raise capital when needed or on acceptable terms, or if it is unable to procure collaboration arrangements to advance its programs, the Company would be forced to discontinue some of its operations or develop and implement a plan to further extend payables, reduce overhead or scale back its current operating plan until sufficient additional capital is raised to support further operations. There can be no assurance that such a plan would be successful.
2. Basis of Presentation and Significant Accounting Policies
Basis of Presentation
The consolidated financial statements have been prepared in accordance with accounting principles generally acceptedGAAP. Operating segments are identified as components of an enterprise about which separate discrete financial information is available for evaluation by the chief operating decision maker, or decision-making group, in making decisions on how to allocate resources and assess performance. The Companys chief operating decision maker is the United States of America, or GAAP. Management has determined thatChief Executive Officer. The Company and the Chief Executive Officer view the Company operates in ones operations and manage its business as 1 operating segment: the development of pharmaceutical products on its own behalf or in collaboration with others. All material long-lived assets of the Company reside in the United States. The Company does use contract research organizations and research institutions located outside the United States. Some of these expenses are subject to collaboration reimbursement, which is presented as a component of license and research and development revenue in the consolidated statements of operations and comprehensive loss.
The accompanying consolidated financial statements include the accounts of Concert Pharmaceuticals, Inc. and its wholly ownedwholly-owned subsidiaries. All intercompany transactions and balances have been eliminated.
The Company considers events or transactions that occur after the balance sheet date but before the financial statements are issued to provide additional evidence relative to certain estimates or to identify matters that require additional disclosure.

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Unless otherwise indicated, all amounts in the following tables are in thousands except share and per share amounts.
Use of Estimates and UncertaintiesSummary of Significant Accounting Policies

The preparation of the consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, equity, revenue, expenses and the disclosure of contingent assets and liabilities and the Company'sCompanys ability to continue as a going concern. In preparing the consolidated financial statements, management used estimates in the following areas, among others: revenue recognition for multiple-element revenue arrangements; income tax expense;recognition; prepaid and accrued research and development expenses; stock-based compensation expense; accrued expenses;fair value of warrant liabilities; and the evaluation of the existence of conditions and events that raise substantial doubt regarding the Company’s ability to continue as a going concern. Actual results could differ from those estimates.
Cash, Cash Equivalents and Investments
Cash equivalents include all highly liquid investments maturing within 90 days from the date of purchase. Investments consist of securities with original maturities greater than 90 days when purchased. The Company classifies these investments as available-for-saleavailable for sale and records them at fair value in the accompanying consolidated balance sheets. Unrealized gains or losses are included in accumulated other comprehensive income (loss). Premiums or discounts from par value are amortized or accreted to investment income over the life of the underlying investment.

Although available to be sold to meet operating needs or otherwise, securities are generally held through maturity. The Company classifies all marketable investments as current assets, as these assets are readily available for use in current operations. The cost of securities sold is determined based on the specific identification method for purposes of recording realized gains and losses. During 20172021 and 2016,2020, there were no realized gains or losses on sales of investments, and no investments were adjusted for other than temporaryother-than-temporary declines in fair value.

The Company reviews available-for-sale securities for other-than-temporary impairment whenever the fair value of an available-for-sale security is less than the amortized cost and evidence indicates that an available-for-sale security’s carrying amount is not recoverable within a reasonable period of time. Other-than-temporary impairments of investments are recognized in the consolidated statements of operations if the Company has experienced a credit loss, has the intent to sell the security or if it is more likely than not that the Company will be required to sell the security before recovery of the amortized cost basis. Evidence considered in this assessment includes reasons for the impairment, compliance with the Company’s investment policy, the severity and the duration of the impairment and changes in value subsequent to the end of the period.
Marketable Equity Securities
Marketable equity securities consist of the fair value of shares of common stock of Processa held by the Company, as discussed further in Note 12. The Company recognizes the effects of changes in fair value of equity securities within net income.
The Company reviews investments in marketable securities for other-than-temporary impairment whenever the fair value of the investment is less than the cost and evidence indicates that an investment’s carrying amount is not recoverable within a reasonable period of time. To determine whether an impairment is other-than-temporary, the Company considers whether it has an intent to sell, or whether it is more likely than not that the Company will be required to sell, the investment before recovery of the investment’s cost basis. Evidence considered in this assessment includes reasons for the impairment, the severity and duration of the impairment and changes in value subsequent to year-end.
Deferred Offering Costs
Costs incurred in the course of preparing for a capital raise, such as legal, accounting and other professional fees, are deferred on the balance sheet as deferred offering costs. At the time of the completion of the offering, the costs are reclassified as a reduction of the proceeds of the capital raise as part of additional paid-in capital. Should the offering be terminated, deferred offering costs are charged to operations during the period in which the offering is terminated.
Fair Value of Financial Measurements

The Company has certain financial assets and liabilities that are recorded at fair value which have been classified as Level 1, 2 or 3 within the fair value hierarchy as described in the accounting standards for fair value measurements:

Level 1—quoted prices for identical instruments in active markets;
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Level 2—quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active and model-derived valuations in which all significant inputs and significant value drivers are observable in active markets; and
Level 3—valuations derived from valuation techniques in which one or more significant value drivers are unobservable.
For additional information related to fair value measurements, please readsee Note 3 to the consolidated financial statements.3.
Concentrations of Credit Risk
Financial instruments that potentially subject the Company to concentration of credit risk consist principally of money market funds, investments (including interest receivable) and accounts receivable. The Company’s current investment policy is to maintain a diversified investment portfolio in U.S. government-backed securities and money market mutual funds consisting of U.S. government-backed securities. The Company’s cash is deposited in and invested through highly rated financial institutions in North America.
The Company has not experienced any credit losses
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in these accounts and does not believe it is exposed to any significant credit risk on these funds. The Company has no foreign exchange contracts, option contracts or other foreign exchange hedging arrangements.
AtAs of December 31, 20172021 and 2016,2020, substantially all of the Company’s cash was deposited in accounts at two2 financial institutions, thus limiting the amount of credit exposure to any one financial institution. These amounts at times may exceed federally insured limits.
Accounts receivable generally represent amounts due from collaboration partners.partners, from rebates with vendors and from sales under the at-the-market offering program discussed in Note 13. The Company monitors economic conditions to identify facts or circumstances that may indicate that any of its accounts receivable are at risk of collection.
Property and Equipment
Property and equipment are recognized at cost and depreciated over their estimated useful lives using the straight-line method. Leasehold improvements are amortized over the shorter of their useful life or the related lease term. Repair and maintenance costs are expensed as incurred, whereas major improvements are capitalized as additions to property and equipment. Potential impairment is assessed when there is evidence that events or circumstances indicate that the carrying amount of an asset may not be recovered. No such impairment losses have been recorded throughfor the year ended December 31, 2017.2021 and 2020.
Rent Expense
Rent expense for the years ended December 31, 2021 and 2020 consists of the Company’s facility at 65 Hayden Avenue, Lexington, Massachusetts. The Company’s operating lease for its existing Lexington, Massachusettsthis facility provides for scheduled annual rent increases throughout the lease term. The Company recognizes the effects of the scheduled rent increases on a straight-line basis over the full term, of the lease, which expires in 2018.on January 1, 2029. Additionally, the Company has received certain lease incentives, in connection with its existing Lexington, Massachusetts facility lease, which are recognized as a reduction to rent expense over the remaining lease term. Refer to Note 11 forFor additional details regarding the Company’s operating leases.
Rent expense for the years ended December 31, 2017, 2016, and 2015 was $1.1 million, $1.2 million, and $1.2 million, respectively.lease, see Note 11.
Contingencies
The Company records liabilities for legal and other contingencies when information available to the Company indicates that it is probable that a liability has been incurred and the amount of loss can be reasonably estimated. Legal costs in connection with legal and other contingencies are expensed as costs are incurred. No liabilities for legal and other contingencies were accrued as of December 31, 20172021 and 2016.2020.
Revenue Recognition
The Company has generated revenue through arrangements with collaborators and nonprofit organizations for the development and commercialization of product candidates. Most recently, the Company completed an Asset Purchase Agreement with Vertex for the sale of CTP-656, now known as VX-561, and other cystic fibrosis assets.
The Company recognizes revenue in accordance with Financial Accounting Standards Board (FASB) Accounting Standards Codification (ASC) Topic 605, Revenue Recognition (ASC 605). Accordingly, revenue is recognized when all of the following criteria are met:
Persuasive evidence of an arrangement exists;
Delivery has occurred or services have been rendered;
The seller’s price to the buyer is fixed or determinable; and
Collectability is reasonably assured.
Amounts received prior to satisfying the revenue recognition criteria are recognized as deferred revenue in the Company’s consolidated balance sheets. Amounts expected to be recognized as revenue within the 12 months following the balance sheet date of December 31, 2017 are classified as deferred revenue, current portion. Amounts not expected to be recognized as revenue within the 12 months following the balance sheet date of December 31, 2017 are classified as deferred revenue, net of current portion. Amounts recorded as deferred revenue and the timing of recognition of those amounts may change upon the Company's adoption of ASC 606 in the first quarter of fiscal year 2018.
The Company’s revenue is currently generated through collaborative research and development, licensing agreements,candidates, a patent assignment agreement and asset sales.
The terms of these agreements typically contain multiple elements, or deliverables,Company accounts for revenue according to the FASB ASU, 2014-09, Revenue from Contracts with Customers,and all related amendments, which may include licenses, oris also referred to as ASC 606. ASC 606 is a single comprehensive model to account for revenue arising from contracts with customers and is based on the principle that an entity should recognize revenue to depict the transfer
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optionsof goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. To achieve this core principle, the Company applies the following steps: (i) identify the contract(s) with a customer, (ii) identify the performance obligations in the contract, (iii) determine the transaction price, (iv) allocate the transaction price to the performance obligations in the contract and (v) recognize revenue when, or as, the entity satisfies a performance obligation. ASC 606 also requires additional disclosure about the nature, amount, timing and uncertainty of revenue and cash flows arising from customer contracts and costs to obtain licenses, to product candidates, referred to as exclusive licenses, as well as research and development activities to be performed by the Company on behalf of the collaboration partner related to the licensed product candidates. The terms of these agreements may include payments to the Company of one or more of the following: a nonrefundable, upfront payment; milestone payments; payment of license exercise or option fees with respect to product candidates; fees for research and development services rendered; and royalties on commercial sales of licensed product candidates, if any. To date, the Company has received upfront payments, several milestone payments and certain research and development service payments but has not received any license exercise or option fees or earned royalty revenue as a result of product sales.
When evaluating multiple element arrangements, the Company considers whether the deliverables under the arrangement represent separate units of accounting. This evaluation requires subjective determinations and requires management to make judgments about the individual deliverables and whether such deliverables are separable from the other aspects of the contractual relationship. In determining the units of accounting, management evaluates certain criteria, including whether the deliverables have standalone value, based on the consideration of the relevant facts and circumstances for each arrangement. The consideration received is allocated among the separate units of accounting using the relative selling price method, and the applicable revenue recognition criteria are applied to each of the separate units.
The Company determines the estimated selling price for deliverables within each agreement using vendor-specific objective evidence, or VSOE, of selling price, if available, third-party evidence, or TPE, of selling price if VSOE is not available, or best estimate of selling price, or BESP, if neither VSOE nor TPE is available. Determining the BESP for a deliverable requires significant judgment. The Company has used its BESP to estimate the selling price for licenses to the Company’s proprietary technology, since the Company does not have VSOE or TPE of selling price for these deliverables. In those circumstances where the Company utilizes BESP to determine the estimated selling price of a license to the Company’s proprietary technology, the Company considers market conditions as well as entity-specific factors, including those factors contemplated in negotiating the agreement, estimated development costs, and the probability of success and the time needed to commercialize a product candidate pursuant to the license. In validating the Company’s BESP, the Company evaluates whether changes in the key assumptions used to determine the BESP will have a significant effect on the allocation of arrangement consideration between multiple deliverables.
The Company’s multiple-element revenue arrangements may include the following:
Exclusive Licenses. The deliverables under the Company’s collaboration agreements generally include exclusive licenses to develop, manufacture and commercialize one or more deuterated compounds. To account for this element of the arrangement, management evaluates whether the exclusive license has standalone value from the undelivered elements based on the consideration of the relevant facts and circumstances of each arrangement, including the research and development capabilities of the collaboration partner. The Company may recognize the arrangement consideration allocated to licenses upon delivery of the license if facts and circumstances indicate that the license has standalone value from the undelivered elements, which generally include research and development services. The Company defers arrangement consideration allocated to licenses if facts and circumstances indicate that the delivered license does not have standalone value from the undelivered elements.
When management believes the license does not have stand-alone value from the other deliverables to be provided in the arrangement, the Company generally recognizes revenue attributed to the license on a straight-line basis over the Company’s contractual or estimated performance period, which is typically the term of the Company’s research and development obligations. If management cannot reasonably estimate when the Company’s performance obligation ends, then revenue is deferred until management can reasonably estimate when the performance obligation ends. The periods over which revenue should be recognized are subject to estimates by management and may change over the course of the research and development and licensing agreement. Such a change could have a material impact on the amount of revenue the Company records in future periods.
Research and Development Services. The deliverables under the Company’s collaboration and license agreements may include deliverables related to research and development services to be performed by the Company on behalf of the collaboration partner.
Payments or reimbursements resulting from the Company’s research and development efforts are recognized as the services are performed and presented on a gross basis because the Company is the principal for such efforts, so long as there is persuasive evidence of an arrangement, the fee is fixed or determinable, and collection of the related amount is reasonably assured. If there is no discernible pattern of performance and/or objectively measurable performance measures do not exist, then the Company recognizes revenue on a straight-line basis over the period it is expected to complete its performance obligations. Conversely, if the pattern of performance in which the service is provided to the customer can be determined and objectively measurable performance measures exist, then the Company recognizes revenue under the arrangement using the proportional performance
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method. Revenue recognized is limited to the lesser of the cumulative amount of payments received or the cumulative amount of revenue earned as of the period end date.
Option Agreements. The Company’s arrangements may provide a collaborator with the right to select a deuterated compound for licensing within an initial pre-defined selection period. Under these agreements, a fee would be due to the Company upon the exercise of an option to acquire a license. The accounting for option arrangements is dependent on the nature of the option granted to the collaboration partner. An option is considered substantive if, at the inception of the arrangement, the Company is at risk as to whether the collaboration partner will choose to exercise the option to secure exclusive licenses. Factors that the Company considers in evaluating whether an option is substantive include the overall objective of the arrangement, the benefit the collaborator might obtain from the arrangement without exercising the option, the cost to exercise the option relative to the total upfront consideration and thefulfill contracts. For additional financial commitments or economic penalties imposed on the collaborator as a result of exercising the option. For arrangements under which an option to secure a license is considered substantive, the Company does not consider the license underlying the option to be a deliverable at the inception of the arrangement. For arrangements under which the option to secure a license is not considered substantive, the Company considers the license underlying the option to be a deliverable at the inception of the arrangement and, upon delivery of the license, would apply the multiple-element revenue arrangement criteria to the license and any other deliverables to determine the appropriate revenue recognition. A significant and incremental discount included in an otherwise substantive option is considered to be a separate deliverable at the inception of the arrangement.
Milestone Revenue. The Company’s collaboration agreements generally include contingent milestone payments related to specified development milestones, regulatory milestones and sales-based milestones. Development milestones are typically payable when a product candidate initiates or advances in clinical trial phases or achieves defined clinical events such as proof-of-concept. Regulatory milestones are typically payable upon submission for marketing approval with regulatory authorities or upon receipt of actual marketing approvals for a compound, approvals for additional indications, upon commercial launch or upon the first commercial sale. Sales-based milestones are typically payable when annual sales reach specified levels.
At the inception of each arrangement that includes milestone payments, the Company evaluates whether each milestone is substantive and at risk to both parties on the basis of the contingent nature of the milestone. This evaluation includes an assessment of whether (a) the consideration is commensurate with either (i) the entity’s performance to achieve the milestone or (ii) the enhancement of the value of the delivered item(s) as a result of a specific outcome resulting from the entity’s performance to achieve the milestone; (b) the consideration relates solely to past performance; and (c) the consideration is reasonable relative to all of the deliverables and payment terms within the arrangement. The Company evaluates factors such as the scientific, regulatory, commercial and other risks that must be overcome to achieve the respective milestone, the level of effort and investment required to achieve the respective milestone and whether the milestone consideration is reasonable relative to all deliverables and payment terms in the arrangement in making this assessment. Milestones that are not considered substantive are accounted for as license payments and recognized on a straight-line basis over the remaining period of performance.information, see Note 12.
Research and Development Costs
Research and development costs are expensed as incurred.
Research and development expenses are comprised of costs incurred in providing research and development activities, including salaries and benefits, facilities costs, overhead costs, contract research and development services and other outside costs. NonrefundableNon-refundable advance payments for goods and services that will be used in future research and development activities are expensed when the activity has been performed or when the goods have been received rather than when the payment is made.
External research and development expenses associated with the Company’s programs include clinical trial site costs, research compounds and clinical manufacturing costs, costs incurred for consultants and other outside services, such as data management and statistical analysis support and materials and supplies used in support of the clinical and nonclinical programs. Internal costs of the Company’s clinical program include salaries, benefits, stock basedstock-based compensation and an allocation of the Company’s facility costs. When third-party service providers’ billing terms do not coincide with the Company’s period-end, the Company is required to make estimates of its obligations to those third parties, including clinical trial and pharmaceutical development costs, contractual services costs and costs for supply of its drug candidates, incurred in a given accounting period and record accruals at the end of the period. The Company bases its estimates on its knowledge of the research and development programs, services performed for the period, past history for related activities and the expected duration of the third-party service contract, where applicable.
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Accounting for Stock-Based Compensation
The Company issues stock options and RSUs to certain employees, officers and directors. The Company accounts for stock compensation using the fair value method, which results in the recognition of compensation expense over the vesting period of the awards. SeeFor additional information, see Note 8 for additional information.

8.
Income Taxes
Income taxes are recorded in accordance with ASC Topic 740, Income Taxes, or ASC 740, which provides for deferred taxes using an asset and liability approach. The Company recognizes deferred tax assets and liabilities for the expected future tax consequences of events that have been included in the financial statements or tax returns. The Company provides deferred tax assets and liabilities for the expected future tax consequences of temporary differences between the Company’s financial statement carrying amounts and the tax basis of assets and liabilities using enacted tax rates expected to be in effect in the years in which the differences are expected to reverse. A valuation allowance is provided to reduce the deferred tax assets to the amount that will more likely than not be realized.
The Company accounts for uncertain tax positions in accordance with the provisions of ASC 740. The Company evaluates tax positions taken, or expected to be taken, in the course of preparing its tax returns to determine whether the tax positions are “more likely than not” of being sustained by the applicable tax authority. Tax positions not deemed to meet the more-likely-than-not threshold would be recognized as a tax expense.

On December 22, 2017, the President As of the United States signed into law the Tax Cuts and Jobs Act (“TCJA”). This legislation makes broad and complex changes to the U.S. tax code, including, but not limited to, (i) reducing the U.S. federal statutory tax rate from 35% to 21%; (ii) eliminating the corporate alternative minimum tax (AMT) and changing how existing AMT credits can be realized; (iii) changing rules related to uses and limitations of net operating loss carryforwards created in tax years beginning after December 31, 2017,2021 and (iv) modifying2020, the officer’s compensation limitation. The Company recognizes the effects of changes indid not have any significant uncertain tax law, including the TCJA, in the period the law is enacted. Accordingly, the effects of the TCJA have been recognized in the financial statements for the year ended December 31, 2017.

positions.
For additional details regarding ourthe accounting for income taxes, see Note 10 in the accompanying consolidated financial statements appearing elsewhere in this Annual Report on Form 10-K.10.
Guarantees
As permitted under Delaware law, the Company indemnifies its officers and directors for certain events or occurrences while the officer or director is, or was, serving at the Company’s request in such capacity. The term of the indemnification is for the officer’s or director’s lifetime. The maximum potential amount of future payments the Company could be required to make is
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unlimited; however, the Company has directors’ and officers’ insurance coverage that limits its exposure and enables it to recover a portion of any future amounts paid.
The Company leases office space under a non-cancelable operating leaseslease, which areis further described in Note 11. The Company has standard indemnification arrangements under the leaseslease that requiresrequire it to indemnify the landlordslandlord against all costs, expenses, fines, suits, claims, demands, liabilities and actions directly resulting from any breach, violation or non-performance of any covenant or condition of the Company’s leases.

Pursuant to the Asset Purchase Agreement, discussed further in Note 14, the Company has agreed to indemnify Vertex for certain matters, including breaches of specified representations and warranties, covenants included in the Asset Purchase Agreement and specified tax claims. Representations and warranties, other than certain fundamental representations and warranties, survive for a period of eighteen months following the Closing and the maximum liability of the Company for claims by Vertex related to the breaches of such representations and warranties, with limited exceptions, is limited to the escrow amount, or $16 million. In no event will the aggregate liability of the Company for indemnification exceed the purchase price paid by Vertex, including any milestone payments. Eighteen months after the Closing, any remaining balance in the escrow account not subject to indemnity claims by Vertex will be released to the Company.lease.
As of December 31, 20172021 and 2016,2020, the Company had not experienced any material losses related to these indemnification obligations, and no material claims with respect thereto were outstanding. The Company does not expect significant claims related to these indemnification obligations and, consequently, concluded that the fair value of these obligations is negligible, and no related reserves were established.
Other IncomeComprehensive Loss
InComprehensive loss is defined as the fiscal year ended December 31, 2017, the Company received $3.6 million due tochange in equity of a disgorgementbusiness enterprise during a period from transactions, other events and circumstances from non-owner sources. Comprehensive loss consists of short-swing profits arisingnet loss and other comprehensive loss, which includes certain changes in equity that are excluded from sales of the Company's stock by a 10% stockholder pursuant to Section 16(b) of the Securities and Exchange Act
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of 1934. The Companynet loss. Comprehensive loss has classified the proceeds from the disgorgement as other incomebeen disclosed in the accompanying consolidated financial statements in fiscal year 2017.
Comprehensive Income (Loss)
Comprehensive income (loss) is comprised of net income (loss)operations and comprehensive loss. Accumulated other comprehensive income or loss. Other comprehensive income or loss is presented separately on the consolidated balance sheets and consists entirely of unrealized gains andholdings losses on investments.investments as of December 31, 2021 and 2020.
Recently Adopted Accounting Pronouncements
In August 2014, the FASB issued ASU No. 2014-15, Disclosure of Uncertainties About an Entity’s Ability to Continue as a Going Concern, or ASU 2014-15. ASU 2014-15 amends FASB Accounting Standards Codification, or ASC, 205-40, Presentation of Financial Statements – Going Concern, by providing guidance on determining when and how reporting entities must disclose going-concern uncertainties in their financial statements, including requiring management to perform interim and annual assessments of an entity’s ability to continue as a going concern within one year of the date of issuance of the entity’s financial statements and providing certain disclosures if there is substantial doubt about the entity’s ability to continue as a going concern. The Company was required to apply the requirements of ASU 2014-15 in its annual financial statements fordid not adopt any accounting pronouncements during the year ended December 31, 2016 and its interim financial statements beginning in the first quarter of fiscal 2017. With respect to the annual financial statements as of December 31, 2017, the Company did not identify any conditions or events that raise substantial doubt about its ability to continue as a going concern within one year after the date the financial statements are issued.

In March 2016, the FASB issued ASU No. 2016-09, Compensation-Stock Compensation-Improvements to Employee Share-Based Payment Accounting, or ASU 2016-09. This update simplifies several aspects of the accounting for share-based compensation arrangements, including accounting for income taxes, forfeitures and statutory tax withholding requirements as well as classification of related amounts on the statement of cash flows. The Company adopted this ASU on January 1, 2017 and it did not have a material effect on the consolidated financial statements and related disclosures.

In August 2016, the FASB issued ASU No. 2016-15—Classification of Certain Cash Receipts and Cash Payments. The amendments in ASU 2016-15 address eight specific cash flow issues and apply to all entities that are required to present a statement of cash flows under FASB Accounting Standards Codification (ASC) 230, Statement of Cash Flows. The amendments in ASU 2016-15 are effective for public business entities for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. Early adoption is permitted, including adoption during an interim period. The Company early adopted this update for the interim period ended September 30, 2017 as the treatment of debt extinguishment payments as a financing activity more clearly presents the cash outflow of the extinguishment transaction. No prior period amounts require retrospective adjustments as no debt extinguishments occurred in the prior year. The adoption of ASU 2016-15 resulted in classification of cash payments related to the debt prepayment as cash outflows for financing activities. Additional information concerning the prepayment of the Loan Agreement is discussed further in Note 15.2021.
Pending Accounting Pronouncements

In May 2014, the Financial Accounting Standard Board, or FASB, issued Accounting Standards Update, or ASU, No. 2014-09, Revenue from Contracts with Customers (Topic 606), or ASU 2014-09, which stipulates that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. To achieve this core principle, ASU 2014-09 provides that an entity should apply the following steps: (1) identify the contract(s) with a customer, (2) identify the performance obligations in the contract, (3) determine the transaction price, (4) allocate the transaction price to the performance obligations in the contract and (5) recognize revenue when (or as) the entity satisfies a performance obligation. This update will be effective for the Company beginning in the first quarter of fiscal 2018 as a result of the FASB’s one year deferral of the effective date for this standard. The amendments may be applied retrospectively to each prior period (full retrospective) or retrospectively with the cumulative effect recognized as of the date of initial application (modified retrospective). Previously, the Company disclosed that it intended to apply ASU 2014-09 using the full retrospective approach. Due to the additional adoption efforts required of issuers under the full retrospective approach, the Company now intends to adopt ASU 2014-09 in the first quarter of 2018 using the modified retrospective approach. Under the modified retrospective approach, the cumulative effect of applying the standard would be recognized at the date of initial application within retained earnings. 

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The Company is currently evaluating the effect of adopting the requirements of ASU 2014-09 as it relates to the accounting for its collaboration arrangements with Celgene Pharmaceuticals, Inc., Jazz Pharmaceuticals plc, Glaxo Group Limited and Avanir Pharmaceuticals, Inc., its patent assignment agreement with Auspex Pharmaceuticals, Inc., and its Asset Purchase Agreement with Vertex Pharmaceuticals, Inc.

While the Company is currently evaluating the effect of adopting the requirements of ASU 2014-09, the Company expects, in certain circumstances, that the timing of recognition of contingent payments that may be received under these agreements may change. Contingent payments, including milestone payments and amounts held in escrow under the Asset Purchase Agreement, are treated as variable consideration in accordance with the overall model of ASU 2014-09. Variable consideration may be recognized earlier under ASU 2014-09 than under the current revenue recognition standards, based on an assessment at each reporting date of the probability of achievement of the underlying milestone event or resolution of the related contingency. This assessment may, in certain circumstances, result in the recognition of revenue related to a contingent payment before the underlying milestone event has been achieved or the underlying contingency has been fully resolved.

In comparison to current revenue recognition standards, ASU 2014-09 also requires more robust disclosures, including disclosures related to disaggregation of revenue into appropriate categories, performance obligations, the judgments made in revenue recognition determinations, adjustments to revenue which relate to activities from previous quarters or years, any significant reversals of revenue, and costs to obtain or fulfill contracts.

In connection with the adoption of ASU 2014-09, the Company is evaluating the need for additional internal controls, including controls to monitor the probability of achievement of contingent payments and the pattern of performance of certain performance obligations.

In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842), or ASU 2016-02. ASU 2016-02 requires lessees to recognize assets and liabilities on the balance sheet for the rights and obligations created by all leases with terms of more than 12 months. ASU 2016-02 also will require certain qualitative and quantitative disclosures designed to give financial statement users information on the amount, timing, and uncertainty of cash flows arising from leases. ASU 2016-02 will be effective for the Company on January 1, 2019. The Company is currently evaluating the impact ASU 2016-02 will have on its financial statements.

In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments-Credit Losses (Topic 326)-Measurement of Credit Losses on Financial Instruments, or ASU 2016-13. The new.This standard requires entities to measure all expected credit losses for financial assets held at the reporting date based on historical experience, current conditions and reasonable and supportable forecasts. As a smaller reporting company, ASU 2016-13 will become effective for the Company for fiscal years beginning after December 15, 2019, with2022, and early adoption is permitted. The Company is currently evaluating the impact that ASU 2016-13 will have on its financial statements and related disclosures.

In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows - Restricted Cash (Topic 230). This new standard requires companies to include amounts generally described as restricted cash and restricted cash equivalents in cash and cash equivalents when reconciling beginning-of-period and end-of-period total amounts shown on the statement of cash flows. This guidance is effective for annual and interim reporting periods beginning after December 15, 2017, and requires retrospective application. The Company is currently assessing the impact that adopting ASU 2016-18 will have on its consolidated financial statements and related disclosures.

3. Fair Value Measurements

The tables below present information about the Company’s financial assets and liabilities that are measured and carried at fair value as of December 31, 20172021 and 2016 (in thousands)2020 and indicate the level within the fair value hierarchy where each measurement is classified. The carrying amounts reflected in the consolidated balance sheets for cash, prepaid expenses and other current assets, restricted cash, accounts payable and accrued expenses approximate their fair values due to their short-term nature.
Level 1Level 2Level 3Total
December 31, 2021
Cash equivalents:
Money market funds$132,850 $— $— $132,850 
Marketable equity securities:
Corporate equity securities1,463 — — 1,463 
Total$134,313 $— $— $134,313 
Warrant liabilities (Note 14)$— $15,438 $— $15,438 
87
  Level 1 Level 2 Level 3 Total
December 31, 2017        
Cash equivalents:        
Money market funds $8,108
 $
 $
 $8,108
Investments, available for sale:        
U.S. Treasury obligations 53,910
 
 
 53,910
Government agency securities 88,651
 32,939
 
 121,590
Total $150,669
 $32,939
 $
 $183,608

CONCERT PHARMACEUTICALS, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Level 1Level 2Level 3Total
December 31, 2020
Cash equivalents:
Money market funds$69,928 $— $— $69,928 
Investments, available for sale:
U.S. Treasury obligations25,528 — — 25,528 
Government agency securities8,737 18,501 — 27,238 
Marketable equity securities:
     Corporate equity securities1,969 — — 1,969 
Total$106,162 $18,501 $— $124,663 



4. Cash, Cash Equivalents, Investments and Marketable Equity Securities
Cash, cash equivalents, available-for-sale investments and marketable equity securities consisted of the following as of December 31, 2021 and 2020:
Amortized
cost
Unrealized
gains
Unrealized
losses
Fair
value
December 31, 2021
Cash$8,786 $— $— $8,786 
Money market funds132,850 — — 132,850 
Cash and cash equivalents$141,636 $— $— $141,636 
December 31, 2021Acquisition valueUnrealized gainsUnrealized lossesFair value
Marketable equity securities$10,451 $— $(8,988)$1,463 
Average
maturity
Amortized
cost
Unrealized
gains
Unrealized
losses
Fair
value
December 31, 2020
Cash$7,274 $— $— $7,274 
Money market funds69,928 — — 69,928 
Cash and cash equivalents$77,202 $— $— $77,202 
U.S. Treasury obligations70 days$25,523 $$— $25,528 
Government agency securities82 days27,225 13 — 27,238 
Investments, available for sale$52,748 $18 $— $52,766 
December 31, 2020Acquisition valueUnrealized gainsUnrealized lossesFair value
Marketable equity securities$10,451 $— $(8,482)$1,969 
88
  Level 1 Level 2 Level 3 Total
December 31, 2016        
Cash equivalents:       

Money market funds $26,257
 $
 $
 $26,257
U.S. Treasury obligations 
 1,001
 
 1,001
Investments, available for sale:        
U.S. Treasury obligations 10,034
 5,503
 
 15,537
Government agency securities 24,545
 15,548
 
 40,093
Total $60,836
 $22,052
 $
 $82,888

CONCERT PHARMACEUTICALS, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

4. Cash, Cash Equivalents and Investments, Available for Sale
Cash, cash equivalents and investments, available for sale included the following at December 31, 2017 and December 31, 2016 (in thousands):
  
Average
maturity
 
Amortized
cost
 
Unrealized
gains
 
Unrealized
losses
 
Fair
value
December 31, 2017          
Cash   $19,557
 $
 $
 $19,557
Money market funds   8,108
 
 
 8,108
Cash and cash equivalents   $27,665
 $
 $
 $27,665
           
U.S. Treasury obligations 184 days $54,004
 $
 $(94) $53,910
Government agency securities 229 days 121,903
 
 (313) 121,590
Investments, available for sale   $175,907
 $
 $(407) $175,500

  
Average
maturity
 
Amortized
cost
 
Unrealized
gains
 
Unrealized
losses
 
Fair
value
December 31, 2016          
Cash   $13,297
 $
 $
 $13,297
Money market funds   26,257
 
 
 26,257
U.S. Treasury obligations 31 days 1,001
 
 
 1,001
Cash and cash equivalents   $40,555
 $
 $
 $40,555
           
U.S. Treasury obligations 125 days $15,534
 $4
 $(1) $15,537
Government agency securities 140 days 40,103
 1
 (11) 40,093
Investments, available for sale   $55,637
 $5
 $(12) $55,630

5. Restricted Cash
At December 31, 2017 and 2016, restricted cash was $1.6 million and $0.4 million, respectively. The restrictedRestricted cash as of December 31, 20172021 and 2016 is2020 was held as collateral for stand-by letters of credit issued by the Company to its landlordslandlord in connection with the leases of the Company'scurrent lease for its principal facilities located at 65 Hayden Avenue, Lexington, Massachusetts facilities.Massachusetts. For additional information regarding the Company's leases, please referenceCompany’s lease, see Note 11. Cash, cash equivalents and restricted cash consisted of the following as of December 31, 2021 and 2020:

CONCERT PHARMACEUTICALS, INC.
December 31,
2021
December 31,
2020
Cash and cash equivalents$141,636 $77,202 
Restricted cash1,157 1,157 
Total cash, cash equivalents and restricted cash shown in the statements of cash flows$142,793 $78,359 
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

6. Property and Equipment
Property and equipment consistsconsisted of the following atas of December 31, 20172021 and 2016 (in thousands):2020:
 
Estimated useful life
(in years)
 
December 31,
2017
 December 31,
2016
Estimated useful life
(in years)
December 31,
2021
December 31,
2020
Laboratory equipment 5 $2,674
 $2,128
Laboratory equipment5$2,857 $3,352 
Computer, telephone and office equipment 3 147
 207
Computer, telephone and office equipment3149 881 
Software 3 160
 192
Software3286 187 
Leasehold improvements Lesser of useful life or remaining lease term 6,551
 6,548
Leasehold improvementsLesser of useful life or remaining lease term6,060 5,943 
 9,532
 9,075
9,352 10,363 
Less accumulated depreciation and amortization (7,367) (6,876)Less accumulated depreciation and amortization(4,110)(4,000)
 $2,165
 $2,199
$5,242 $6,363 
Depreciation and amortization expense was charged to operations in the amounts of $1.0 million, $0.9$1.5 million and $0.8$1.6 million for the years ended December 31, 2017, 2016,2021 and 2015,2020, respectively.
7. Accrued Expenses and Other Liabilities
Accrued expenses and other liabilities consistconsisted of the following (in thousands):as of December 31, 2021 and 2020:
December 31,
2021
December 31,
2020
Accrued professional fees and other$1,094 $709 
Employee compensation and benefits3,617 3,690 
Research and development expenses7,648 4,618 
Accrued expenses and other liabilities$12,359 $9,017 
Employee compensation and benefits, net of current portion$28 $108 
Accrued expenses and other liabilities, net of current portion$28 $108 
  
December 31,
2017
 December 31,
2016
Accrued professional fees and other $628
 $487
Employee compensation and benefits 2,797
 2,010
Research and development expenses 521
 930
Deferred lease incentive, current portion 249
 324
Deferred rent, current portion 104
 102
  $4,299
 $3,853
8. StockStock-Based Compensation

Stock incentive plans

The Company previously sponsored an Amended and Restated 2006 Stock Option and Grant Plan, or the 2006 Plan, which provided for the issuance of shares of common stock in the form of incentive stock options, nonstatutory stock options, awards of stock and direct stock purchase opportunities to directors, officers, employees and consultants of the Company. The 2006 Plan was replaced by the Company’s 2014 Stock Incentive Plan, or the 2014 Plan, which became effective in February 2014. The 2014 Plan provides for the grant of incentive stock options, nonstatutory stock options, restricted stock awards, restricted stock units, stock appreciation rights and other stock-based awards. In addition, the 2014 Plan includes an “evergreen
89

CONCERT PHARMACEUTICALS, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
provision” that allows for an annual increase in the number of shares of common stock available for issuance under the 2014 Plan. Effective January 1, 2018, 925,6152022, 1,389,561 shares were addedadded to the 2014 Plan for future issuance pursuant to this evergreen provision.

The 2006 Plan has no shares remaining available for grant, although existing stock options granted under the 2006 Plan remain outstanding. As of December 31, 2017, 1,312,8062021, 1,463,441 shares were available for future grant under the 2014 Plan.

Stock options

Stock options are granted with an exercise price equal to the closing market price of the Company’s common stock on the date of grant. Stock options generally vest ratably over one, three or four years and have contractual terms of ten years. Stock options are valued using the Black-Scholes-Merton option valuation model, and compensation cost is recognized based on such fair value over the period of vesting.



CONCERT PHARMACEUTICALS, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The following table provides certain information related to the Company'sCompany’s outstanding stock options:options as of December 31, 2021 and 2020:
Year ended December 31,
 Year ended December 31, 20212020
 2017 2016 2015
 (in thousands, except per share data)
Weighted average fair value of options granted, per option $7.67
 $10.42
 $10.27
Weighted-average fair value of options granted, per optionWeighted-average fair value of options granted, per option$7.09 $6.53 
Aggregate grant date fair value of options vested during the year $6,212
 $4,614
 $3,470
Aggregate grant date fair value of options vested during the year$8,046 $8,506 
Total cash received from exercises of stock options $6,576
 $601
 $1,844
Total cash received from exercises of stock options$138 $833 
Total intrinsic value of stock options exercised $8,692
 $1,160
 $9,126
Total intrinsic market value of stock options exercisedTotal intrinsic market value of stock options exercised$45 $452 
The weighted averageweighted-average fair value of options granted in the years ended December 31, 2017, 20162021 and 2015,2020 reflect the following weighted-average assumptions:
 Year ended December 31,
 20212020
Expected volatility69.83%68.60%
Expected term6.0 years6.0 years
Risk-free interest rate0.60%1.31%
Expected dividend yield—%—%
  Year ended December 31,
  2017 2016 2015
Expected volatility 78.15% 78.29% 73.38%
Expected term 6.0 years
 6.0 years
 6.0 years
Risk-free interest rate 2.07% 1.36% 1.69%
Expected dividend yield % % %
Expected volatility. For the yearyears ended December 31, 2017,2021 and 2020, expected volatility was estimated using a weighted-average of the Company's historical volatility of its common stock andcalculated based on the historical volatility of the Company’s common stock of a representative group of publicly traded companies from the biopharmaceutical industry with similar characteristics as the Company, including stage of product development and therapeutic focus. The Company will continue to apply this process until a sufficient amount of historical information regarding the volatility of its own stock price becomes available.stock.
For year ended December 31, 2016 and 2015, the Company estimated expected volatility using only the historical volatility from a representative group of publicly traded companies from the biopharmaceutical industry with similar characteristics including stage of product development and therapeutic focus.
Expected term. The expected term of awards represents the period of time that the awards are expected to be outstanding. The expected term was determined using the simplified method as prescribed by the Securities and Exchange Commission Staff Accounting BulletinSAB No. 107, Share-Based Payment,as the Company does not have sufficient historical exercise data to provide a reasonable basis upon which to estimate the expected term of stock options granted to employees.
Risk-free interest rate. For the years ended December 31, 2017, 20162021 and 2015,2020, the risk-free interest rate was estimated using an average of treasury bill interest rates over a period commensurate with the expected term of the option at the time of grant.
Expected dividend yield. The expected dividend yield is zero, as the Company has not paid any dividends to date and has no current intention of paying cash dividends.
Forfeiture rate. The Company elected to estimate potential forfeiture of stock grants and adjust compensation cost recorded accordingly. The estimate of forfeitures is adjusted over the requisite service period to the extent that actual forfeitures differ, or are expected to differ, from such estimates. Changes in estimated forfeitures are recognized through a cumulative catch-up in the period of change and impact the amount of stock compensation expense to be recognized in future periods. For the years ended December 31, 2017, 20162021 and 2015,2020, the Company assumed forfeiture rates of approximately 7%, 6%, and 6%, respectively..
90

CONCERT PHARMACEUTICALS, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The following is a summary of stock option activity underfor the 2006 Planyear ended December 31, 2021:
Number of
Option Shares
Weighted
Average
Exercise
Price per
Share
Weighted
Average
Remaining
Contractual
Term
Aggregate
Intrinsic Market
Value
   (in years)
Outstanding at December 31, 20204,652,870 $14.48 
Granted861,143 $11.57 
Exercised(24,146)$5.72 
Forfeited or expired(292,547)$11.48 
Outstanding at December 31, 20215,197,320 $14.21 6.05$
Exercisable at December 31, 20213,911,142 $14.81 5.32$
Vested and expected to vest at December 31, 2021 (1)
5,099,993 $14.25 6.01$
(1)Represents the number of vested stock option shares as of December 31, 2021, plus the number of unvested stock option shares that the Company estimated as of December 31, 2021 would vest, based on the unvested stock option shares as of December 31, 2021 and 2014 Plan:an estimated forfeiture rate of 7%.
  
Number of
Option Shares
 
Weighted
Average
Exercise
Price per
Share
 
Weighted
Average
Remaining
Contractual
Term
 
Aggregate
Intrinsic
Value
      (In years) (In thousands)
Outstanding at December 31, 2016 2,953,961
 $10.49
    
Granted 1,065,500
 $11.25
    
Exercised (828,263) $8.06
    
Forfeited or expired (301,476) $12.48
    
Outstanding at December 31, 2017 2,889,722
 $11.25
 7.06 42,241
Exercisable at December 31, 2017 1,607,015
 $10.11
 6.09 25,320
Vested and expected to vest at December 31, 2017 (1) 2,784,591
 $11.21
 7.01 40,826
(1)This represents the number of vested stock option shares as of December 31, 2017, plus the number of unvested stock option shares that the Company estimated as of December 31, 2017 would vest, based on the unvested stock option shares at December 31, 2017 and an estimated forfeiture rate of 7%.
As of December 31, 20172021, there was $9.9$8.5 million of total unrecognized compensation cost related to stock options that are expected to vest. Total unrecognized compensation cost will be adjusted for future changes in forfeitures. The stock option costs are expected to be recognized over a weighted-average remaining vesting period of 2.32.1 years.

Restricted Stockstock units

On July 6, 2017,August 15, 2019, or the 2019 RSU grant date, the Company granted 0.50.4 million RSUs, or the 2019 RSUs, to executivescertain officers and employees. The awardsAll of the 2019 RSUs are service-based and vest annually over two years. 35% of the 2019 RSUs vested on the first anniversary of the 2019 RSU grant date, and the remainder vested on the second anniversary of the 2019 RSU grant date.
On February 14, 2020, or the 2020 RSU grant date, the Company granted 0.4 million RSUs, or the 2020 RSUs, to certain officers and employees. All of the 2020 RSUs are service-based and vest ratably over three years, with one third of the 2020 RSUs vesting on each anniversary of the 2020 RSU grant date through February 14, 2023.
On January 5, 2021, or the January 2021 RSU grant date, the Company granted 0.3 million RSUs, or the January 2021 RSUs, to officers and employees. All of the January 2021 RSUs are service-based and vest ratably over three years, with one third of the January 2021 RSUs vesting on each anniversary of the January 2021 RSU grant date through January 5, 2024.
On June 10, 2021, or the June 2021 RSU grant date, the Company granted 0.2 million RSUs, or the June 2021 RSUs, to employees and directors. All of the June 2021 RSUs are service-based, whereas the awards granted to executives are a blend of service-based and performance-based. Assuming all service and performance conditions are achieved, fifty percentwith half of the RSUs will vest on March 31, 2018,grants to employees vesting six months after the June 2021 RSU grant date and the remaining fifty percentremainder vesting on the first anniversary of the RSUs will vestJune 2021 RSU grant date, and the grants to directors vesting on March 31, 2019. Certain executive awards are subjectthe earlier of the first anniversary of the June 2021 RSU grant date or one day prior to the achievementCompany’s 2022 annual meeting of defined performance criteria prior to March 31, 2018, including the closing of the transaction contemplated by the Asset Purchase Agreement with Vertex Pharmaceuticals, Inc. and the institution by the Patent Trial and Appeal Board ("PTAB") of the Post Grant Review ("PGR") petition filed by the Company against Incyte Corporation. The Company is using the accelerated attribution method to recognize expense over the required service period based on its estimate of the number of performance-based awards that will vest. Upon the closing of the transaction contemplated by the Asset Purchase Agreement with Vertex, the Company deemed the corresponding performance criteria achieved and recognized expense over the remaining vesting period. In January 2018, the PTAB decided not to institute a PGR petition proceeding against Incyte and, as a result, the corresponding performance criteria is considered unachieved as of December 31, 2017. No stock compensation expense was taken on these awards. If there is a change in the estimate of the number of performance-based awards that are probable of vesting, the Company will cumulatively adjust compensation expense in the period that the change in estimate is made.

stockholders.
RSUs are not included in issued and outstanding common stock until the shares arehave vested and released.settled. As of December 31, 2017, no2021, all of the 2019 RSUs had vested, 0.1 million of the 2020 RSUs had vested and 0.1 million of the June 2021 RSUs granted to employees had vested. The fair value of an RSU is measured based on the market price of the underlying common stock as of the date of grant, reduced by the purchase price of $0.001 per share. For the year ended December 31, 2017, the weighted-average grant date fair value of RSUs is $13.87.grant.
91

CONCERT PHARMACEUTICALS, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

The following is a summary of RSU activity including both time-based and performance-based restricted stock units for the year ended December 31, 2017:
 
Number of
RSU Shares
 
Weighted
Average
Grant Date Fair Value
    
Outstanding at December 31, 2016
 $
      Granted520,500
 $13.87
      Released
 $
      Forfeited(3,200) $13.87
Outstanding at December 31, 2017517,300
 $13.87

2021:
Number of
RSUs
Weighted
Average
Grant Date Fair Value
Outstanding at December 31, 2020661,033 $10.64 
      Granted486,643 $9.74 
      Released(434,360)$9.56 
      Forfeited(85,124)$10.01 
Outstanding at December 31, 2021628,192 $10.78 
As of December 31, 2017,2021, there was $3.8$4.3 million of unrecognized compensation cost related to restricted stock unitsRSUs that are expected to vest. This amount excludes compensation cost related to restricted stock units where the performance conditions are not considered probable of being satisfied. The RSU costs from restricted stock units likely to vest are expected to be recognized over a weighted averageweighted-average remaining vesting period of 1.0 year.1.4 years.
Stock-based compensation expense
Total stock-based compensation cost recognized forexpense related to all stock-based compensationoptions and awards recognized in the consolidated statements of operations and comprehensive income (loss)loss is as follows (in thousands):
  For the Year Ended December 31,
  2017 2016 2015
Research and development $3,708
 $2,147
 $1,251
General and administrative 4,792
 2,920
 1,730
Total stock-based compensation expense $8,500
 $5,067
 $2,981

CONCERT PHARMACEUTICALS, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

9. Earnings (Loss) Per Share
The Company has outstanding warrants, including those issued in connection with the Loan and Security Agreement described in Note 15, that are deemed to be participating securities. Accordingly, the Company applied the two-class method to calculate basic and diluted net earnings per share of common stock for the year ended December 31, 2017. The two-class method is an earnings allocation formula that treats a participating security as having rights to earnings that otherwise would have been available to common stockholders. The two-class method was not applied for the years ended December 31, 20162021 and 2015 as the Company’s participating securities do not have any obligation to absorb net losses and the effect did not have a material impact on the earnings per share.2020:
 For the Year Ended December 31,
 20212020
Research and development$6,607 $5,800 
General and administrative5,965 5,313 
Total stock-based compensation expense$12,572 $11,113 

9. Loss Per Share
Basic net earnings (loss)loss per common share is calculated by dividing net income (loss)loss allocable to common stockholders by the weighted-average common shares outstanding during the period, without consideration of stock options, RSUs or preferred stock as common stock equivalents.
For periods with net income, diluted net earnings per share is calculated by either (i) adjusting the The weighted-average common shares outstanding for the dilutive effectas of December 31, 2021 and 2020 includes pre-funded warrants to purchase up to an aggregate of 1.8 million shares of common stock equivalents, including warrants, stock options and restricted stock units outstanding forthat were issued in connection with the period2020 Financing, as determined using the treasury stock method or (ii) the two-class method considering common stock equivalents, whichever is more dilutive. 
discussed in Note 15. For purposes of the diluted net loss per share calculation, common stock equivalents are excluded from the calculation if their effect would be anti-dilutive. As such, basic and diluted net loss per share applicable to common stockholders are the same for periods with a net loss.
The following table illustrates the determination of earnings (loss)loss per share for each period presented.the years ended December 31, 2021 and 2020:
 For the Year Ended December 31,
 20212020
Numerator:
Net loss applicable to common stockholders - basic and diluted$(80,051)$(74,766)
Denominator:
Weighted-average shares outstanding - basic and diluted34,405 31,200 
Net loss per share applicable to common stockholders - basic and diluted$(2.33)$(2.40)
Anti-dilutive potential common stock equivalents excluded from the calculation of net loss per share:
Stock options5,1974,653
Restricted stock units628661
Warrants16,31161
Series X1 Preferred Stock13,997
92

CONCERT PHARMACEUTICALS, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

 For the Year Ended December 31,
 2017 2016 2015
Basic Earnings per Share(in thousands, except per share amounts)
Numerator:     
Net income (loss)$95,639
 $(50,720) $24,174
Income attributable to participating securities - basic444
 
 
Income (loss) attributable to common stockholders - basic95,195
 (50,720) 24,174
      
Denominator:     
Weighted average shares outstanding22,641
 22,233
 21,152
Net income (loss) per share applicable to common stockholders - basic$4.20
 $(2.28) $1.14
      
Diluted Earnings per Share     
Numerator:     
Net income (loss)95,639
 (50,720) 24,174
Income attributable to participating securities - diluted429
 
 
Income (loss) attributable to common stockholders - diluted95,210
 (50,720) 24,174
      
Denominator:     
Weighted average shares outstanding22,641
 22,233
 21,152
   

 

Dilutive impact from:  

 

Stock options688
 
 1,105
Warrants
 
 10
Restricted stock units113
 
 
Weighted average shares outstanding - diluted23,442
 22,233
 22,267
Net income (loss) per share applicable to common stockholders - diluted$4.06
 $(2.28) $1.09
      
Anti-dilutive potential common stock equivalents excluded from the calculation of net income (loss) per share:     
Stock options1,833
 620
 429
Restricted stock units408
 
 
Warrants
 71
 61

CONCERT PHARMACEUTICALS, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

10. Income Taxes
New Tax Legislation
On December 22, 2017,During the President of the United States signed into law the Tax Cuts and Jobs Act (“TCJA”). This legislation makes broad and complex changes to the U.S. tax code, including, but not limited to, (i) reducing the U.S. federal statutory tax rate from 35% to 21%; (ii) eliminating the corporate alternative minimum tax (AMT) and changing how existing AMT credits can be realized; (iii) modifying the officer’s compensation limitation, and (iv) changing rules related to uses and limitations of net operating loss carryforwards created in tax years beginning afteryear ended December 31, 2017. Specifically, the TCJA limits the amount2021, the Company is able to deduct forrecorded a net operating loss carryforwards generated in taxable years beginning after December 31, 2017 to 80%before taxes of taxable$80.1 million and, since it maintains a full valuation allowance on its deferred tax assets, the Company did not record an income however these net operating loss carryforwards can be carried forward indefinitely.
The Company recognizes the effects of changes in tax law, including the TCJA, in the period the law is enacted. Accordingly, the effects of the TCJA have been recognized in the financial statementsbenefit for the year ended December 31, 2017.2021.
On July 25, 2017, the transaction contemplated by the Vertex Agreement was completed, as discussed further in Note 12, and Vertex paid the Company $160.0 million in cash, with $16.0 million initially held in escrow. For income tax purposes, the $16.0 million held in escrow was recognized under the installment method and therefore deferred until the cash was received by the Company in February 2019. Under Section 453A of the U.S. Internal Revenue Code, or the Code, the Company is required to recognize interest on the deferred tax liability with respect to the portion of the installment sale outstanding as of the close of each taxable year that exceeds $5.0 million. As a result, of the change in law, the Company recordedaccrued interest of $0.2 million for 2018. The $16.0 million initially held in escrow was released to the Company in February 2019, and the Company recognized no interest for 2019. During 2020, the Company was able to utilize $0.1 million of state research and development tax credits with its Massachusetts state tax return for the year ending December 31, 2019. The Company has established a reduction to its deferred tax assets of $8.6 million and a corresponding reduction to itsfull valuation allowance dueagainst these credits, and as such the Company booked a discrete benefit of $0.1 million in 2020 for the utilization of these credits against its Massachusetts state liability.
On March 27, 2020, the Coronavirus Aid, Relief, and Economic Security Act, or the CARES Act, was signed into law, making several changes to the reductionCode. The changes include, among other things, increasing the limitation on the amount of deductible interest expense, allowing companies to carryback certain net operating losses and increasing the amount of net operating loss carryforwards that companies can use to offset taxable income. The tax law changes in the U.S. federal statutory rate from 35% to 21%.CARES Act did not have a material impact on the Company’s income tax provision.
In addition, the new legislation has alsoThe Tax Cuts and Jobs Act, or TCJA, repealed the corporate Alternative Minimum Tax (“AMT”)alternative minimum tax, or AMT, for years after 2017. CorporationsCompanies that were previously subject to the AMT and therefore have AMT tax credit carryforwards as of December 31, 2017 are eligible for a refund of these credits for tax years beginning after 2017 and before 2022. The Company iswas subject to AMT in the amount of $1.9 million in 2017. Since the AMT payable inpaid on its 2017 will generatetax return generated an AMT credit that will be refundable between 2018 and 2022, the Company has recorded a $1.9 million income tax receivable rather than a tax expense for 2017. Further, the Company also hashad a deferred tax asset for its AMT credit carryforward related to its AMT liability paid in 2015 in the amount of $0.3 million. This deferred tax asset was previously offset by a full valuation allowance. As a result of the change in law, the Company has reclassified the 2015 AMT credit carryforward from deferred tax assets to income tax receivable. The Company has recorded a current period tax benefitreceivable during 2017. As of $0.3 million related to the reversal of the valuation allowance on its 2015 AMT credit carryforward as this amount is now refundable.
At December 31, 2017,2020, the Company has not completed its accounting for the tax effects of the enactment of the TCJA; however in certain cases we have madehad a reasonable estimate of the effects of the TCJA. For the items for which we were able to determine a reasonable estimate, we recorded an $8.6$2.3 million reduction to deferred tax assets with an offset to valuation allowance and recognized a provisional benefit for income taxes of $0.3 million for the year ended December 31, 2017. The Company’s preliminary estimate of the effects TCJA, including the remeasurement of deferred tax assets and liabilities and the recognition of an income tax benefitreceivable related to AMT tax credit carryforwards, is subject to the finalization of management’s analysis related to certain matters, such as developing interpretations of the provisions of the TCJA and the filing of the Company’s tax returns. U.S. Treasury regulations, administrative interpretations or court decisions interpreting the TCJA may require further adjustments and changestaxes in our estimates.prior years. The final determination of the effects of the TCJA will be completed as additional information becomes available, but no later than one year from the enactment of the TCJA. In all cases, we will continue to make and refine our calculations as additional analysis is completed. In addition, our estimates may also be affected as we gain a more thorough understanding of the tax law.
Income Taxes
During the year ended December 31 2017, the Company recorded net income before taxes of $95.3 million. As a result of the enactment of the TCJA, which allows for AMT to bereceived these refundable the Company recorded a tax receivable of $2.2 million as of December 31, 2017 and a $0.3 million income tax benefitcredits during the year ended December 31, 2017. The tax benefit is the result of the removal of its valuation allowance on its AMT credit carryforward as previously described. Income taxes that would otherwise have been due on the 2017 taxable income were offset with the tax benefit of net operating loss carryforwards which had previously had a full valuation allowance, except for $1.9 million of AMT incurred due to the limitation on use of net operating loss carryforwards when determining AMT. However, the 2017 AMT is also refundable under the Tax Cuts and Jobs Act of 2017 and thus we have not recorded a tax provision for this amount. The total amount of refundable AMT credits of $2.2 million is reflected as income tax receivable in the accompanying consolidated balance sheet as of December 31, 2017. We provide a full valuation allowance for any tax benefit related to net operating losses due to the uncertainty of the ability to realize such benefits.
CONCERT PHARMACEUTICALS, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

During the year ended December 31, 2016, the Company recorded a net loss of $50.7 million and, since it maintained a full valuation allowance on its deferred tax assets, the Company did not record an income tax benefit for the year ended December 31, 2016. The Company recorded $0.4 million in income tax expense during the year ended December 31, 2015.  The tax expense is the result of alternative minimum tax (“AMT”)  which, in accordance with the U.S. federal tax code as of December 31, 2015, limited the use of net operating loss carryforwards to ninety percent of AMT income resulting in an effective tax rate of approximately two percent.2021.
The Company’s ability to use its operating loss carryforwards and tax credit carryforwards to offset taxable income is subject to restrictions under Sections 382 and 383 of the United States Internal Revenue Code (the “Internal Revenue Code”).Code. Net operating loss and tax credit carryforwards are subject to an annual limitation in the event of certain cumulative changes in the ownership interest of significant shareholdersstockholders over a three-year period in excess of 50 percent,50%, as defined under Sections 382 and 383 of the Internal Revenue Code. Such changes would limit the Company’s use of its operating loss and tax credit carryforwards. In such a situation, the Company may be required to pay income taxes, even though significant operating loss and tax credit carryforwards exist. Additionally, any future financing could result in a change in control, as defined by Sections 382 and 383 of the Code, which could further limit the Company'sCompany’s use of its operating loss and tax credit carryforwards. In determining the tax provisions for fiscal years 2017 and 2015, we assessed our ability to use our net operating loss carryforwards in accordance with Sections 382 and 383 of the Internal Revenue Code.
A reconciliation of the federal statutory income tax rate and the Company’s effective income tax rate is as follows:follows for the years ended December 31, 2021 and 2020:
 Year ended December 31,Year ended December 31,
 2017 2016 201520212020
Federal statutory income tax rate (35.0)% 34.0 % (34.0)%Federal statutory income tax rate21.0 %21.0 %
State income taxes (5.1)% 4.5 % (5.3)%State income taxes6.4 %6.6 %
Change in valuation allowance 46.2 % (40.3)% 32.6 %Change in valuation allowance(30.0)%(30.3)%
Research and development and other credits 2.5 % 3.1 % 7.8 %Research and development and other credits4.6 %3.5 %
Permanent items 0.8 % (1.0)% (0.3)%Permanent items(2.0)%(0.7)%
Alternative minimum tax  %  % (1.7)%
Other  % (0.3)% (0.8)%
Federal rate change (9.1)%  %  %
Effective income tax rate 0.3 %  % (1.7)%Effective income tax rate— %0.1 %
The significant components of the Company’s net deferred tax assets consist of the following (in thousands):as of December 31, 2021 and 2020:
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
December 31,
December 31,20212020
2017 2016
Deferred tax assets:Deferred tax assets:
Net operating loss carryforwards$11,670
 $53,809
Net operating loss carryforwards$73,794 $57,057 
Deferred revenue2,733
 3,948
Deferred revenue2,075 751 
Research and development and other credit carryforwards13,399
 10,791
Research and development and other credit carryforwards25,836 21,546 
Lease liabilityLease liability4,116 4,370 
Other3,811
 3,851
Other12,106 10,585 
31,613
 72,399
117,927 94,309 
Valuation allowance(31,613)
(72,399)Valuation allowance(114,470)(90,446)
Total deferred tax assets, net of valuation allowanceTotal deferred tax assets, net of valuation allowance$3,457 $3,863 
Deferred tax liabilities:Deferred tax liabilities:
Fixed assetsFixed assets$1,112 $1,413 
Right of use assetRight of use asset2,345 2,450 
Total deferred tax liabilitiesTotal deferred tax liabilities$3,457 $3,863 
Net deferred tax assets$
 $
Net deferred tax assets$— $— 
Subject to the limitations described above and the impacts of the TCJA, atas of December 31, 2017,2021, the Company had gross federal net operating loss carryforwards of $54.9$282.1 million and state net operating loss carryforwards of $2.2$230.3 million available to reduce future taxable income, of which $54.8 million of the gross federal net operating loss carryforwards and $230.3 million of the state net operating loss carryforwards will expire at various dates beginning in 2028.2034. Approximately $227.3 million of the federal net operating loss carryforwards will be carried forward indefinitely. The Company also had federal and state tax credit carryforwards of $9.9$20.5 million and $4.3$6.7 million, respectively, available to reduce future tax liabilities, which expire at various dates through 2037.
The Company adopted ASU 2016-09, Improvements to Employee Share-Based Payment Accounting on January 1, 2017.  As a result of adoption, the deferred tax assets associated with net operating losses as of December 31, 2016 have increased by $3.2 million. These amounts were offset by a corresponding increase in the valuation allowance. The adoption of ASU 2016-09 has no impact on the Company’s operations, financial position or cash flows.
CONCERT PHARMACEUTICALS, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

2041.
Realization of the future tax benefits is dependent on many factors, including the Company’s ability to generate taxable income within the carryforward period. The Company currently has deferred tax assets in excess of its deferred tax liabilities, resulting in the Company having net deferred tax assets. The Company has evaluated the positive and negative evidence bearing upon the realizability of its net deferred tax assets and concluded that it is more likely than not that the Company will not realize the benefit of its net deferred tax assets. As a result, the net deferred tax assets have been fully reserved atas of December 31, 20172021 and 2016.2020.
AtAs of December 31, 2017,2021, the Company had no unrecognized tax benefits. The Company has not conducted a study of its research and development credit carryforwards. A study may result in an adjustment to the Company’s research and development credit carryforwards; however, until a study is completed and any adjustment is known, no amounts will be presented as an uncertain tax position. A full valuation allowance has been provided against the Company’s research and development credit carryforwards and, if an adjustment is required, this adjustment would be offset by an adjustment to the valuation allowance. Thus, there would be no impact to the consolidated balance sheet or statement of operations if an adjustment were required.
Interest and penalty charges, if any, related to unrecognized tax benefits would be classified as income tax expense in the accompanying statement of operations. As of December 31, 2017,2021, the Company had no accrued interest related to uncertain tax positions.
The Company is currently open to examination under the statute of limitations by the Internal Revenue ServiceIRS and state jurisdictions for the tax years ended 20142018 through 2016.2020. Carryforward tax attributes generated in years prior to 20112018 may still be adjusted upon future examination if they have or will be used in a future period. The Company is currently not under examination by the Internal Revenue ServiceIRS or any other jurisdictions for any tax years. Since the Company is in a loss carryforward position, the Company is generally subject to examination by the U.S. federal, state and local income tax authorities for all tax years in which a loss carryforward is available.

11. Commitments

Lease
The Company currently leaseshas a lease, or the Lease, for approximately 50,00056,000 square feet of office and laboratory space inlocated at 65 Hayden Avenue, Lexington, Massachusetts, under a non-cancelable operating lease agreement, or the 2008 Lease Agreement, as amended.  The term of the 2008 Lease Agreement continues through September 30, 2018. 
The Company is amortizing all leasehold improvement assets and deferred incentives associated with the 2008 Lease Agreement over the remaining lease term, as amended, and is recognizing rental expense on a straight-line basis over the respective lease term including any free rent periods.

In December 2017, the Company entered into an non-cancelable operating lease agreement (the "2017 Lease Agreement" or the "Lease") to lease 55,522 square feet of office and laboratory space in a new location in Lexington, Massachusetts (the "Premises"). The Company expects to occupy the Premises in July 2018.Premises. The Lease is classified as an operating lease. The lease term will extend
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CONCERT PHARMACEUTICALS, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
extends ten years following the “Base Rent Commencement Date” (as defined in the Lease), currently expected to be January 1, 2019. The Company is entitled to two2 five-year options to extend the Lease. The Lease will be accounted for as an operating lease.

The Lease provides for annual base rent of approximately $2.8 million in the first year following the Base Rent Commencement Date of January 1, 2019, which increases on a yearly basis by 3.0% (subject to an abatement of base rent of approximately $0.5 million at the beginning of the second year of the Lease term iflease term). There are no variable payments, exercise purchase options, penalties, fees or residual value guarantees under the Lease. The Company is not in default under the Lease). The Company will also be obligated to pay the Landlordlandlord for certain costs, taxes and operating expenses related to the Premises, subject to certain exclusions. The Company is recognizing rental expense on a straight-line basis, beginning on the lease commencement date of January 1, 2018, over the term of the lease with corresponding rent differential accounted for as deferred rent.

The Company will be entitled toreceived an improvement allowance from the landlord of approximately $5.0 million for certain permitted costs related to the design and construction of Companythe Company’s improvements to the Premises.Premises, consisting of normal tenant improvements. The Company is accountingdeemed to be the owner of these tenant improvements during the lease term. These $5.0 million of improvements are included in the Company’s property, plant and equipment balances in its consolidated balance sheets as of December 31, 2021 and 2020 and are depreciated over the shorter of their useful life or the related lease term.
In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842), or ASC 842. ASC 842 requires lessees to recognize assets and liabilities on the balance sheet for the tenant improvements as a lease incentive obligationrights and obligations created by all leases with terms of more than 12 months. ASC 842 also requires certain qualitative and quantitative disclosures designed to be amortized against operating lease expensegive financial statement users information on a straight-line basis over the termamount, timing and uncertainty of the Lease. The leasehold improvements will be recognized as assets and amortized on a straight-line basis over the term of the Lease.

cash flows arising from leases. The Company is obligated to provideadopted ASC 842 effective January 1, 2019.
On January 1, 2019, the Company recorded a security depositright-of-use asset in the amount of approximately$9.5 million, which represented the lease liability of $16.9 million, adjusted for previously accrued rent of $2.9 million and previously recorded unamortized lease incentives in the amount of $4.5 million. The right-of-use asset is amortized over the remaining lease term in an amount equal to the difference between the calculated straight-line expense of the total lease payments less the monthly interest calculated on the remaining lease liability. As of December 31, 2021 and 2020, the Company had a long-term lease asset of $8.6 million and $9.0 million, respectively, recorded in its consolidated balance sheets.
The Company used an incremental borrowing rate of 13.08% to discount the remaining lease payments over the remaining lease term and recorded a lease liability of $16.9 million on January 1, 2019. This lease liability is amortized over the remaining lease term in an amount equal to the difference between the cash rent paid and the monthly interest calculated on the remaining lease liability. As of December 31, 2021 and 2020, the Company had a current lease liability of $1.2 million which may be used byand $0.9 million, respectively, and a non-current lease liability of $13.9 million and $15.1 million, respectively, recorded in its consolidated balance sheets.
The Company recognizes lease expense, calculated as the Landlordremaining cost of the Lease allocated over the remaining lease term, on a straight-line basis. Lease expense is presented as part of continuing operations in the consolidated statements of operations and comprehensive loss. For each of the years ended December 31, 2021 and 2020, the Company recognized $2.4 million in rent expense.
For the years ended December 31, 2021 and 2020, the Company paid rent of $3.0 million and $2.4 million, respectively. The year ended December 31, 2020 included two months of rent abatement according to be appliedthe terms of the Lease. As a payment arising from an operating lease, the $3.0 million and $2.4 million is classified within operating activities in the consolidated statements of cash flows for certain purposes uponthe years ended December 31, 2021 and 2020, respectively.
As of December 31, 2021 and 2020, the discount rate for the Lease was 13.08%, and the remaining lease term for the Premises was seven years and eight years, respectively.
Future minimum lease payments under the Company’s breachnon-cancelable operating leases as of any provisions under the Lease.December 31, 2021 were as follows:

95
The Lease contains customary provisions allowing the Landlord to terminate the Lease if the Company fails to remedy a breach of any of its obligations within specified time periods, or upon bankruptcy or insolvency of the Company.

CONCERT PHARMACEUTICALS, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Maturities of lease liabilities:For the year ended December 31,
20223,058 
20233,150 
20243,244 
20253,341 
20263,442 
Thereafter7,196 
Total lease payments$23,431 
Less imputed interest$(8,366)
Total$15,065 
12. Revenue
The future minimum lease paymentsCompany’s revenue is generated through collaborative licensing agreements, patent assignments and sales of intellectual property. The Company generates its revenue through 1 segment. The revenue recognized under each of the 2008 Lease Agreement,Company’s arrangements during the current and prior periods is described below. The terms of these agreements may contain multiple promised goods or services or optional goods and services, including licenses to product candidates, referred to as amended,exclusive licenses, as well as research and the 2017 Lease Agreement is as follows (in thousands):
  
 Base rent obligations
At December 31, 2017 
2018$1,208
20192,776
20202,383
20212,945
20223,034
Greater than 5 years20,210
Total minimum lease payments$32,556

12. Collaboration Agreements
Celgene
In April 2013,development activities to be performed by the Company entered intoon behalf of the collaboration partner related to the licensed product candidates.
Revenue recognition
Revenue is recognized when control of the promised goods or services are transferred to customers in an amount that reflects the consideration the Company expects to be entitled to in exchange for transferring those goods or providing services. The Company accounts for a master developmentcontract when it has approval and commitment from both parties, the rights of the parties are identified, payment terms are identified, the contract has commercial substance and collectability of consideration is probable.
When determining whether the customer has obtained control of the goods or services, the Company considers the point at which the customer may benefit from the goods or services. For licenses to product candidates, revenue is recognized upon grant or transfer of the exclusive license, agreement with Celgene Corporation and Celgene International Sàrl, referred to together as Celgene, which is primarily focused on the Company’s licenses are considered functional in nature. For research, development and commercializationmanufacturing activities, revenue is recognized as the work is performed using either the output or input method.
Performance obligations
A performance obligation is a promise in a contract to transfer a distinct good or service to the customer, and is the unit of specified deuterated compounds targeting inflammationaccount in ASC 606. A contract’s transaction price is allocated to each distinct performance obligation and recognized as revenue when, or cancer.as, the performance obligation is satisfied. The Company’s contracts may contain multiple performance obligations if a promise to transfer goods or services is separately identifiable from other promises in a contract and, therefore, is considered distinct. For contracts with multiple performance obligations, the Company determines the standalone selling price of each performance obligation and allocates the total transaction price using the relative selling price basis. The Company recognizes performance obligations based on their nature.
Significant payment terms
The initial program inCompany’s revenue arrangements include payments to the collaboration is CTP-730,Company of one or more of the following: a deuterium-modified analognon-refundable, upfront payment; milestone payments; payment of apremilast. Celgene has an exclusive worldwide license to develop, manufacture and commercialize deuterated analogs of apremilast and certain close chemical derivatives thereof. The Company further granted Celgene licensesexercise or option fees with respect to two additional programs and an option with respect to a third additional program.
The Company was responsibleproduct candidates; fees for conducting and funding research and early development activities for the CTP-730 program at its own expense pursuant to mutually agreed upon development plans. This included the completion of single and multiple ascending dose Phase 1 clinical trials in 2015.
Under the terms of the agreement, the Company received a non-refundable upfront payment of $35.0 million. In October 2015, the Company earned and recognized as milestone revenue an $8.0 million development milestone payment upon completion of Phase 1 clinical evaluations for CTP-730. In addition, the Company is eligible to earn an additional $15.0 million development milestone payment, up to $247.5 million in regulatory milestone payments and up to $50.0 million in sales-based milestone payments related to products within the CTP-730 program. The next milestone payment the Company may be entitled to achieve under the CTP-730 program is $15.0 million related to the first actual dosing in a Phase 3 clinical trial or, if earlier, acceptance for filing of a NDA. If Celgene exercises its rights with respect to either of the two additional license programs, the Company will receive a license exercise fee for the applicable program of $30.0 million and will also be eligible to earn up to $23.0 million in development milestone payments and up to $247.5 million in regulatory milestone payments for that program. Additionally, with respect to one of the additional license programs, the Company is eligible to receive up to $100.0 million in milestone payments based on net sales of products, and with respect to the other additional license program, the Company is eligible to receive up to $50.0 million in milestone payments based on net sales of products. If Celgene exercises its option with respect to the option program, in respect of a compound to be identified at a later time, the Company will receive an option exercise fee of $10.0 million and will be eligible to earn up to $23.0 million in development milestone payments and up to $247.5 million in regulatory milestone payments.
In addition, with respect to each program, Celgene is required to pay the Company royalties on worldwide net sales of each licensed product at defined percentages ranging from the mid-single digits to low double digits below 20%. The royalty rate is reduced on a country-by-country basis during any period within the royalty term when there is no patent claim or regulatory exclusivity covering the licensed product in the particular country.
The Company’s arrangement with Celgene contains the following deliverables: (i) an exclusive worldwide license to develop, manufacture and commercialize deuterated analogs of apremilast related to the CTP-730 program, or the License Deliverable, (ii) obligations to perform research and development services associated withrendered; and royalties on commercial sales of licensed product candidates, if any. To date, the CTP-730 program,Company has received upfront payments, several milestone payments and certain research and development service payments, but has not received any license exercise or option fees or earned royalty revenue as a result of product sales.
Under ASC 606, the R&D Services Deliverable, (iii) obligationCompany estimates the amount of consideration to supply nonclinical and clinical trial material related to the CTP-730 program, or the Supply Deliverable, (iv) participationwhich it will be entitled in exchange for satisfying performance obligations. Based on the JSC duringCompany’s current contracts, variable consideration primarily exists in the term offollowing forms: development and regulatory milestones, royalties and sales-based milestones. The Company utilizes the CTP-730 program, or"most likely amount" variable consideration method for estimating development and regulatory milestone consideration to include in the JSC Deliverable, (v) significant and
96

CONCERT PHARMACEUTICALS, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

incremental discount relatedtransaction price. The Company only includes an amount of variable consideration in the transaction price to the first additional license program for whichextent it is probable that a significant reversal in the non-deuterated compound has been selected, orcumulative revenue recognized will not occur when the First Discount Deliverable and (vi) significant and incremental discount relateduncertainty associated with the variable consideration is subsequently resolved. The Company refers to this as the variable consideration constraint.
Due to the second additionaluncertainty associated with the occurrence of the underlying events which would trigger development and regulatory milestone consideration under its revenue arrangements, with the exception of those development and regulatory milestones received to date, the Company has concluded the variable consideration associated with all development and regulatory milestones to be fully constrained as of the ASC 606 transition date and as of December 31, 2021 and 2020, and therefore has not included such consideration in the transaction price for any of its revenue arrangements. The Company will reassess this conclusion at each subsequent reporting period and will only include amounts associated with regulatory or development milestones in the transaction price when, or if, the variable consideration is determined to be released from the constraint.
To date, the Company has not recognized any royalties or sales-based milestones under its licensing and collaboration arrangements. Royalties and sales-based milestones qualify for the sales-and-usage exemption under ASC 606 as (i) royalties are based strictly on the sales-and-usage by the licensee and (ii) a license programof intellectual property is the sole or predominant item to which such royalties relate. Based on this exemption, these royalties are earned under the terms of a license agreement in the period the products are sold by the Company’s collaborator and the Company has a present right to payment.
In accordance with ASC 606, the Company is required to adjust the transaction price for which the non-deuterated compound has been selected, oreffects of the Second Discount Deliverable.
Allocable arrangement consideration at inception was limitedtime value of money if the timing of payments agreed to by the parties to the $35.0 million non-refundable upfront payment.contract, explicitly or implicitly, provides the Company or its customer with a significant benefit of financing the transfer of goods or services. The Company allocatedconcluded that its licensing and collaboration arrangements do not contain a significant financing component because the arrangement consideration for the collaboration among the separate unitspayment structure of accounting using the relative selling price method. its agreements arise from reasons other than providing a significant benefit of financing.
Contract assets
The arrangement consideration allocated to the License Deliverable was recognized upon delivery, amounts allocated to the R&D Services Deliverable and Supply Deliverable are recognized under the proportional performance method over the expected periodCompany did not have a contract asset as of performance.
During the years ended December 31, 2017, 2016 and 2015, the Company recognized revenue of $2 thousand, $19 thousand, and $5.1 million for the R&D Services Deliverable and $18 thousand, $43 thousand, and $0.5 million for the Supply Deliverable, respectively. Additionally, the Company recognized revenue of $16 thousand, and $32 thousand related to the JSC deliverable during the years ended December 31, 2016 and 2015, respectively. The JSC Deliverable expected period of performance extended until December 31, 2016 therefore no revenue was recognized during 2017. The revenue recognized was classified as license and research and development revenue in the accompanying consolidated statement of operations and comprehensive income (loss).2021 or 2020.
Contract liabilities
As of December 31, 2017, there was $7.22021 and 2020, the Company had $2.8 million ofin contract liabilities related to unsatisfied performance obligations as well as variable consideration paid in advance, but currently constrained from recognition. Contract liabilities are presented as deferred revenue and classified as current or non-current based on the timing of when the Company expects to recognize revenue. The $2.8 million in contract liabilities as of December 31, 2021 is related to a payment received from GSK that the Company will not recognize as revenue until all repayment obligations lapse.
During the year ended December 31, 2021, no deferred revenue was recognized into revenue.
Revenue arrangements
Vertex
On July 25, 2017, or the Vertex Closing Date, the Company completed the sale of worldwide development and commercialization rights to CTP-656, now known as VX-561, and other assets related to the Company’s collaborationtreatment of cystic fibrosis to Vertex pursuant to the Vertex Agreement. The Company received $160.0 million in cash on the Vertex Closing Date, with Celgene.
Jazz Pharmaceuticals
In February 2013,$16.0 million initially held in escrow, which was released to the Company entered into a development and license agreement with Jazz Pharmaceuticals, Inc., or Jazz Pharmaceuticals,in February 2019. Additionally, upon the achievement of certain milestone events, Vertex agreed to research, develop and commercialize products containing a deuterated sodium oxybate analog, or D-SXB. Jazz Pharmaceuticals is initially focusing on one analog, designated as JZP-386. Underpay the terms of the agreement, the Company granted Jazz Pharmaceuticals an exclusive, worldwide, royalty-bearing license under intellectual property controlled by the Company to develop, manufacture and commercialize D-SXB products including, but not limited to, JZP-386.
The Company, together with Jazz Pharmaceuticals, has conducted certain development activities for Phase 1 clinical trials with respect to JZP-386 pursuant to an agreed upon development plan. The Company was responsible under the development plan for conducting the Phase 1 clinical trials with respect to JZP-386. The Company’s obligations to conduct further development activities are subject to mutual agreement. Jazz Pharmaceuticals has assumed all manufacturing and development responsibilities relating to JZP-386. Pursuant to the agreement, the Company’s costs for activities under the development plan were reimbursed by Jazz Pharmaceuticals, except for the costs of a Phase 1 clinical trial that was conducted in the first half of 2015, which was shared between Jazz Pharmaceuticals and the Company.
Under the agreement, the Company received a non-refundable upfront payment of $4.0 million and is eligible to earn an aggregate of up to $8.0$90.0 million.
In May 2021, the Company entered into the Vertex Amendment. Pursuant to the Vertex Amendment, Vertex paid the Company $32.0 million in development milestone payments, up to $35.0 millioncash in regulatory milestone payments and up to $70.0 million in sales-based milestone payments based on net product salesexchange for the removal of licensed products. The next milestone payment thatthe Milestone Obligation. As a result of the Vertex Amendment, the Company may beis not entitled to receive is $4.0 millionany further payments pursuant to the Vertex Agreement.
The Vertex Amendment changes the future obligations due from Vertex under the Vertex Agreement and was therefore treated as a contract modification. Since the Vertex Amendment does not provide for any new distinct goods or services, and the single performance obligation related to initiation of the first Phase 2 clinical trial of JZP-386.
In addition, Jazz Pharmaceuticals is required to payarrangement was previously satisfied, the Company royalties at defined percentages ranging from the mid-single digits to low double digits below 20% on worldwide net sales of licensed products. The royalty rate is lowered, on a country-by-country basis, under certain circumstances as specified in the agreement.
The Company determined that there were three deliverables under the agreement: (i) an exclusive, royalty-bearing, sub-licensable worldwide license to develop and commercialize D-SXB compounds, or the License Deliverable, (ii) participation on a joint steering committee, or the JSC Deliverable, and (iii) a deliverable to direct external patent activities and bear a portion of the external patent fees, or the Patent Support Deliverable.
The Company allocated arrangement consideration of $3.7 million to the License Deliverable, $0.1 million to the JSC Deliverable and $0.2 million to the Patent Support Deliverable. The Company recognized the arrangement$32.0 million payment from Vertex as other revenue during the year ended December 31, 2021.
Previously, the variable consideration allocated to the License Deliverable upon delivery and will recognize revenue related to the JSC Deliverable and the Patent Support Deliverable over the respective periods of performance.
For the years ended December 31, 2017, 2016 and 2015, the Company recognized revenue of $16 thousand, $55 thousand, and $0.8 million, respectively, relatedMilestone Obligation was considered fully constrained due to the performanceuncertainty associated with the achievement of development support services. Additionally, for the years endedmilestones. Pursuant to the Vertex Amendment, Vertex is no longer
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

obligated to make these future milestone payments, and as a result, they are no longer considered variable consideration. There are no performance obligations or variable consideration remaining associated with the Vertex Agreement.
December 31,Processa
On October 4, 2017, 2016 and 2015, the Company recognized revenue of $26 thousand, $41 thousand, $57 thousand, respectively, related to the JSC and Patent Support deliverables.
Avanir
In February 2012, the Company entered into a developmentan Option and license agreementLicense Agreement, or the Option, with Avanir Pharmaceuticals, Inc.,Promet Therapeutics, LLC, or Avanir, underPromet, pursuant to which the Company granted AvanirPromet an option to obtain an exclusive license to CTP-499 if certain conditions were met. On October 5, 2017, Promet closed an asset purchase with Heatwurx, Inc., a public company, creating Processa.
On March 19, 2018, the Company entered into an amendment to the Option, or the Promet Amendment, and a Securities Purchase Agreement with both Promet and Processa. Pursuant to the Promet Amendment, the Company granted Promet, who then assigned to Processa, an exclusive, worldwide, royalty-bearing license to develop, manufacture and commercialize deudextromethorphan containing products. Avanir is currently focused on developing AVP-786, which is a combinationCTP-499, now known as PCS-499. Upon transfer of a deudextromethorphanthe license and an ultra low dose of quinidine. Subsequent toas consideration for the Company’s agreement, Avanir was acquired by Otsuka Pharmaceutical Co., Ltd. and it is now a wholly owned subsidiary of Otsuka America, Inc.
Since June 2012, Avanir has elected to conduct all research and development activities, including manufacturing activities; however, the Company has received intellectual property cost reimbursements.
Under the agreement,license, the Company received 2,090,301 shares of common stock of Processa. In December 2019, Processa implemented a non-refundable upfront paymentreverse stock split, and the Company now owns 298,615 shares of $2.0 million and has received milestone paymentscommon stock of $6.0 million. Processa.
The Company is also eligible to earn,receive royalties on worldwide net sales of PCS-499.
The Promet Amendment contained one performance obligation: an exclusive, worldwide, royalty-bearing license to develop, manufacture and commercialize CTP-499. The Company determined that the transaction price was $10.5 million, which was based on the fair value of the non-cash consideration received on March 19, 2018, which consisted of 2,090,301 shares of publicly-traded common stock of Processa. The transaction price of $10.5 million was allocated to the single performance obligation. The performance obligation was considered satisfied at contract inception, as the exclusive license transferred control to the customer at this point in time. Accordingly, revenue of $10.5 million was recognized during the first quarter of 2018.
Subsequent changes to the fair value of the underlying securities are recognized as unrealized gains or losses on marketable equity securities within the consolidated statements of operations and comprehensive loss.
The Amendment contains consideration that is variable based on royalties upon the customer’s commercial success with the licensed product. The consideration related to royalty payments is considered variable consideration that is fully constrained in accordance with the royalty recognition constraint. The variable consideration related to royalties will be recognized in the period the products are sold by Processa and the Company has a present right to payment.
For the years ended December 31, 2021 and 2020, the Company recognized $16 thousand and $18 thousand, respectively, in revenue related to intellectual property cost reimbursements.
13. Open Market Sale Agreement
On March 1, 2019, the Company entered into the ATM Agreement with Jefferies with respect to licensed products comprising a combination of deudextromethorphan and quinidine, up to $37.0 million in regulatory and commercial launch milestone payments, ofan at-the-market offering program under which $21.5 million in development and regulatory milestone payments are associated with the first indication, and up to $125.0 million in sales-based milestone payments. The next milestone payments that the Company may be entitledoffer and sell, from time to receive are $5.0time at its sole discretion, shares of its common stock having an aggregate offering price of up to $50.0 million, upon acceptance for filingreferred to as Placement Shares, through Jefferies as its sales agent. The Company will pay Jefferies a commission equal to 3.0% of a New Drug Application, or NDA, $3.0 million upon acceptance for filingthe gross sales proceeds of a Marketing Authorization Application, or MAA,any Placement Shares sold through Jefferies under the ATM Agreement, and $1.5 million upon acceptance for filing of a NDA by the MHLW related to AVP-786. In addition,also has provided Jefferies with customary indemnification and contribution rights.
On November 5, 2020, the Company is eligible for higher development milestones,entered into an amendment to the ATM Agreement with Jefferies to increase the aggregate offering price of Placement Shares that may be offered and sold pursuant to the ATM Agreement from up to $50.0 million to up to $100.0 million. However, on March 7, 2021, the Company’s ability to further use the first $50.0 million expired. As a result, from March 7, 2021 onward, the Company may only offer and sell up to an additional $43.0$50.0 million for licensed products that do not require quinidine. Avanir is currently developing deudextromethorphan in combination with quinidine.
Avanir also is requiredpursuant to pay the Company royalties at defined percentages ranging from the mid-single digits to low double digits below 20% on net sales of licensed products on a country-by-country basis. The royalty rate is reduced, on a country-by-country basis, during any period within the royalty term when there is no patent claim covering the licensed product in the particular country.

ATM Agreement.
During the year ended December 31, 2015,2019, the Company recognized as revenue a $2.0sold 36,167 shares of its common stock pursuant to the ATM Agreement for aggregate net proceeds of $0.4 million, milestoneafter payment received from Avanir based onof cash commissions of 3.0% of the initiation of dosing in a Phase 3 clinical trial of AVP-786.

gross proceeds to Jefferies. Additionally, the Company recognized revenue of $0.1incurred approximately $0.3 million for intellectual property cost reimbursements during the year ended December 31, 2015.2019 related to legal, accounting and other fees in connection with the ATM Agreement.
GSK
In May 2009,During the year ended December 31, 2020, the Company entered into a research and development collaboration and license agreement with Glaxo Group Limited, or GSK, to research, develop and commercialize multiple products containing deuterated compounds, including CTP-499. The agreement with GSK, as subsequently amended, expired in May 2012 after GSK opted outsold 2,008,197 shares of further development under the agreement and made a $2.8 million paymentits common stock pursuant to the Company. The Company has an obligation to make aATM Agreement for aggregate net proceeds of $22.8 million, after payment to GSK of up to $2.8 million if the Company commercializes CTP-499 or if the Company receives cash proceeds from re-licensing or transferring the rights to the CTP-499 program. The $2.8 million payment was classified as deferred revenue and will not be recognized as revenue until all repayment obligations lapse.


13. Patent Assignment
In September 2011, the Company entered into a patent assignment agreement with Auspex Pharmaceuticals, Inc., or Auspex, pursuant to which the Company assigned to Auspex a U.S. patent application relating to deuterated pirfenidone analogs. Under the termscommissions of 3.0% of the agreement, the Company is eligiblegross proceeds to receive certain royalty payments, or the Royalty Payments, equal to a percentage in the low single digits of net sales in the United States invoiced by Auspex or any of its affiliates, with respect to certain pharmaceutical products containing a deuterated pirfenidone analog. The patent assignment agreement further provides that if Auspex sells to another party all of its U.S. rights to certain deuterated pirfenidone products, or if Auspex grants to another party a license to sell certain deuterated pirfenidone products in the United States, the Company will receive an amount, or the Sublicense/Sale Payments, equal to a percentage in the teens of any proceeds Auspex receives therefrom that are attributable to the rights to such deuterated pirfenidone products in the United States. In addition, the patent assignment agreement provides that if Auspex is acquired in a change in control transaction at any time while it, or any of its affiliates, own certain patents or patent applications related to deuterated pirfenidone, the Company will receive within a specified period
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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Jefferies. Additionally, the Company incurred approximately $0.3 million during the year ended December 31, 2020 related to legal, accounting and other fees in connection with the ATM Agreement.
followingDuring the closingyear ended December 31, 2021, the Company sold 165,323 shares of its common stock pursuant to the ATM Agreement for aggregate net proceeds of $2.0 million, after payment of cash commissions of 3.0% of the transaction 1.44% of anygross proceeds payable as consideration for the change in control transaction, including any amounts paid to stockholders and certain equity holders of Auspex. Any such change in control payment to the Company is credited to Auspex as a deduction against any future Royalty Payments and Sublicense/Sale Payments that may become due under the agreement, such that Auspex will not be required to make further Royalty Payments and Sublicense/Sale Payments to the Company until the aggregate amount of such Royalty Payments and Sublicense/Sale Payments exceeds the amount of such change in control payment. The patent assignment agreement expires upon the earlier to occur of (1) receiptJefferies. Cash provided by the Company of the final Sublicense/Sale Payment arising from (a) the sale of Auspex’s U.S. rights to certain deuterated pirfenidone products or (b) Auspex’s grant of an exclusive license to sell certain deuterated pirfenidone products in the United States in all indications and fields, or (2) the expiration of the last claim owned by Auspex or any of its affiliates in certain patents or patent applications related to deuterated pirfenidone analogs.
Under the agreement, Concert became eligible to receive a one-time payment of $50.2 million, which was received in June 2015, due to Teva Pharmaceutical Industries Ltd.’s acquisition of Auspex in May 2015. Due to the stage of development of any deuterated pirfenidone products and the considerable uncertainty associated with the receipt of any Royalty Payments and Sublicense/Sale Payments under the agreement, the payment of $50.2 million was recorded as other revenue in the consolidated statement of operations and comprehensive income (loss)financing activities for the year ended December 31, 2015.2021 includes $0.5 million in aggregate net proceeds from sales pursuant to the ATM Agreement that had been classified as a receivable as of December 31, 2020.


14. Asset Purchase Agreement2021 Sale of Common and Preferred Stock, Warrants and Royalty Interest


On MarchNovember 3, 2017,2021, or the 2021 Financing Date, the Company and Vertex entered into an Asset Purchasethe 2021 Financing, which was a structured financing consisting of a securities purchase agreement, or the SPA, warrant agreements, or the Warrants, and a royalty purchase agreement, or the RPA. Pursuant to the 2021 Financing, the Company received aggregate gross proceeds of $65.0 million in exchange for the sale of (i) 13,997 shares of Series X1 Preferred Stock, (ii) 2,253,000 shares of common stock, (iii) Warrants to purchase up to 16,250 shares of Series X1 Preferred Stock and (iv) a portion of the Company’s right to receive potential future AVP-786 royalties under the Avanir Agreement, pursuant to which,or the Royalty Interest.
Preferred Stock
On November 3, 2021, the Company filed a certificate of designation with the Delaware Secretary of State setting forth the preferences, rights and limitations of a newly designated series of preferred stock known as “Series X1 Preferred Stock.” 32,500 shares have been designated as Series X1 Preferred Stock.
The Series X1 Preferred Stock is convertible into shares of common stock at a conversion rate of 1,000 shares of common stock per share of Series X1 Preferred Stock, at the option of the holder, subject to certain limitations. Except in limited circumstances, the satisfaction or waiverSeries X1 Preferred Stock does not have voting rights. Holders of the conditions therein,Series X1 Preferred Stock are entitled to receive dividends on an as converted to common stock basis when and if declared. In any liquidation or dissolution of the Company, soldthe Series X1 Preferred Stock will rank on parity with the common stock in the distribution of assets, to the extent legally available for distribution, and assignedwill receive any dividends declared but unpaid on such shares.
Warrants
The Warrants consisted of (i) warrants to Vertex, CTP-656, now known as VX-561,purchase an aggregate of 8,125 shares of Series X1 Preferred Stock at an initial exercise price (on a common stock equivalent basis) of $5.34 per share, or the First Tranche Warrants, and other cystic fibrosis assets(ii) warrants to purchase an aggregate of an additional 8,125 shares of Series X1 Preferred Stock at an initial exercise price (on a common stock equivalent basis) of $7.35 per share, or the Second Tranche Warrants. The Warrants are exercisable at any time prior to the expiration date.
The term of the Company. On July 25, 2017,First Tranche Warrants and Second Tranche Warrants is contingent on the transactionoutcome of the Company’s CTP-543 THRIVE-AA1 Phase 3 clinical trial and THRIVE-AA2 Phase 3 clinical trial, respectively. The Warrants expire 90 days after the occurrence of both (i) the public disclosure by the Company of the achievement of statistical significance on each of the primary endpoints of the respective clinical trial and (ii) a determination by the Company that there are no safety or other issues that would impede the Company’s filing of an NDA without first requiring an additional clinical trial that is not already contemplated by the Asset Purchase Agreement closedCompany’s development plans for CTP-543. In the event that either event (i) or (ii) does not occur, the Warrants will expire 90 days after the earlier of (a) the public release of topline data from two ongoing Phase 3 clinical trials being conducted by Avanir in the indication of agitation in Alzheimer’s disease patients and Vertex paid the Company $160 million in cash consideration, with $16 million to be held in escrow. There are no refund provisions with the exception of the amount held in escrow for potential indemnification for a period of eighteen months.

Additionally, upon the achievement of certain milestone events, Vertex has agreed to pay the Company an aggregate of up to $90 million. Of this amount, $50 million will become payable(b) written notification to the Company upon receipt of FDA marketing approval for a combination treatment regimen containing CTP-656, now known as VX-561, for patients with cystic fibrosis, and $40 million will become payable to the Company upon completion of a pricing and reimbursement agreement in the first of the United Kingdom, Germany or France with respect to a combination treatment regimen containing CTP-656 for patients with cystic fibrosis.

Pursuant to the Asset Purchase Agreement,Investors that the Company has agreedreceived written notice from Avanir of a decision to indemnify Vertex for certain matters, including breachescease both such clinical trials early. In the event that neither event (a) nor (b) occurs, the Warrants will expire upon the 10th anniversary from issuance.
The exercise price of specified representations and warranties, covenants includedthe Warrants is subject to a one-time adjustment in the Asset Purchaseevent that the Company sells capital stock or derivative securities convertible into or exercisable for capital stock (subject to certain exemptions) at a weighted-average price per share below the initial exercise price, in which case the initial exercise price will be automatically reset upon exercise of the Warrant to an exercise price that is the midpoint between the initial exercise price and the weighted-average price per share, provided that the adjusted exercise price cannot be less than $2.88 per share.
Royalty Interest
As part of the 2021 Financing, under the RPA, the Investors purchased the Royalty Interest. Investors are initially entitled to an aggregate base amount of the future royalty payments of 35.0% in respect of worldwide net sales of licensed products under the Avanir Agreement, and specified tax claims. Representations and warranties, other than certain fundamental representations and warranties, survive for a period of eighteen months followingmay increase their percentage ownership (i) by up to 7.5% upon the Closing andexercise in full by the maximum liabilityInvestors of the Company for claimsFirst Tranche Warrants and (ii) by Vertex relatedup to an additional 7.5% upon the breaches of such representations and warranties, with limited exceptions, is limited toexercise in full by the escrow amount, or $16 million. In no event will the aggregate liabilityInvestors of the Company for indemnification exceed the purchase price paid by Vertex, including any milestone payments. Eighteen months after the Closing, any remaining balance in the escrow account not subject to indemnity claims by Vertex will be released to the Company.Second Tranche

99
The Asset Purchase Agreement with Vertex contains the following deliverables: (i) all rights to develop, manufacture, and commercialize deuterated analogs of Kalydeco related to the CTP-656 program, including all intellectual property, permits and registrations, and records, documentation, and regulatory filings, in addition to an obligation to perform research and testing consulting services to facilitate the transfer of materials, documents, and knowledge up to the close of the Asset Purchase Agreement, referred to as the Transfer of IP Deliverable, and (ii) an obligation to perform certain limited transition services including manufacturing, clinical, regulatory, quality assurance, and intellectual property consulting subsequent to the close of the transaction contemplated by the Asset Purchase Agreement to expedite the advancement of CTP-656 without impacting Vertex’s development timeline, referred to as the Transition Services Deliverable.

The Company concluded that the Transfer of IP Deliverable has standalone value because Vertex can fully utilize the underlying intellectual property for its intended purpose without the Transition Services Deliverable. This conclusion considered Vertex's expertise as it relates to the clinical development and manufacturing of cystic fibrosis products that enable Vertex to use the intellectual property for its intended purpose without involvement of the Company. The purpose of the Transition Services Deliverable is to transfer ongoing manufacturing and clinical activities to Vertex and do not otherwise represent Company know-how. Accordingly, each deliverable qualifies as a separate unit of accounting.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

Warrants. Upon exercise of any portion of the First Tranche Warrants and/or Second Tranche Warrants by any Investor, such Investor is entitled to receive its pro rata share of the percentages set forth in the RPA.

Accounting Treatment
The Company received aggregate net proceeds of $64.4 million from the 2021 Financing after deducting offering expenses of $0.6 million payable by the Company.
The common stock, Series X1 Preferred Stock, Warrants and Royalty Interest were determined to be freestanding instruments, as they are legally detachable and separately exercisable from each other.
The Series X1 Preferred Stock is not redeemable outside the control of the Company, and the Company has the ability to settle any conversion in shares. As such, the Series X1 Preferred Stock is classified as a component of permanent stockholders’ equity within additional paid-in capital. The ability of the Series X1 Preferred Stock to be converted to common stock, or the Conversion Option, represents an embedded call option, and therefore, the Company performed an evaluation in accordance with ASC 815, Derivatives and Hedging, to determine whether the Conversion Option requires bifurcation as a derivative. As a result of the evaluation, the Company concluded that neither vendor specific objective evidence (VSOE) of selling price nor third party evidence (TPE) of selling price was availablethe Conversion Option feature is clearly and closely related to the equity host instrument and is not an embedded derivative requiring bifurcation. Additionally, the Company evaluated the Series X1 Preferred Stock for any ofa beneficial conversion feature in accordance with ASC 470, Debt. The evaluation identified a beneficial conversion feature; however, because the Series X1 Preferred Stock is recorded at par value with the incremental amount recorded to additional paid-in capital, the beneficial conversion feature has no impact.
The Warrants include an exercise contingency that is based on an observable index other than the Company’s own operations, and therefore, are precluded from equity classification. As a result, the Warrants are classified as a liability and measured at fair value at inception with subsequent changes in fair value recognized in earnings as further discussed below.
The Royalty Interest does not meet the debt classification criteria, and as such, is accounted for under the deferred income model to be amortized under the units of accounting identifiedrevenue method. The two options to acquire an additional 7.5% of ownership in future AVP-786 royalties, or the Royalty Step Ups, are features embedded in the Royalty Interest. The Royalty Step Ups do not require bifurcation, as they are subject to scope exception because they pertain to the inceptionsale of future revenues.
The aggregate proceeds of the arrangement with Vertex. Accordingly, the selling price of each unit of accounting was determined based on the Company's best estimate of selling price (BESP). The Company developed its BESP for the intellectual property under the Transfer of IP Deliverable through a risk adjusted discounted cash flow model of the CTP-656 asset that considered applicable market conditions, probabilities of technical success, relevant entity-specific factors, and factors contemplated in negotiating the agreement. The Company developed BESP for the research and testing consulting services included under the Transfer of IP Deliverable and the services included under the Transition Services Deliverable based on the nature of services to be performed, estimates of the associated effort, and cost of the services adjusted for a reasonable profit margin such that they represented estimated market rates for similar services on standalone basis.

Allocable arrangement consideration at inception was limited to the $144.1 million non-refundable upfront payment. Total allocable arrangement consideration was allocated among the separate units of accounting using the relative selling price method as follows: (i) $143.7 million to the Transfer of IP Deliverable; and (ii) $0.4 million to the Transition Services Deliverable. Given the significant value of the intellectual property under the Transfer of IP Deliverable relative to the limited transition services under the Transition Services Deliverable, changes in the BESP of the intellectual property would not result in a significant change in allocation.

The arrangement consideration2021 Financing were first allocated to the Transfer of IP Deliverable was recognized uponWarrants based on fair value, with the close of the transaction contemplated by the Asset Purchase Agreement as all items under that deliverable were delivered on the closing date, whereas amountsremaining proceeds allocated to the Transition Services Deliverable are recognized under the proportional performance method over the expected periodcommon stock, Series X1 Preferred Stock and Royalty Interest on a relative fair value basis. The First Tranche Warrants and Second Tranche Warrants were valued using a Black-Scholes-Merton option pricing model, resulting in a fair value of performance.

The Company has evaluated each$7.5 million and $5.9 million, respectively, as of the milestones that may be received in connection with2021 Financing Date. The relative fair value allocated to common stock and Series X1 Preferred Stock totaled $6.5 million and $40.3 million, respectively. The relative fair value allocated to the Asset Purchase Agreement. Each of the milestones are considered substantive on the basis of the contingent nature of the milestone, specifically reviewing factors such as the scientific, clinical, regulatory and other risks that must be overcome to achieve the milestone as well as the level of effort and investment required. Accordingly, such amounts will be recognized as revenue in full in the period in which the associated milestone is achieved, assuming all other revenue recognition criteria are met. Royalty Interest was $4.8 million.
Warrant Fair Value Assumptions
As of December 31, 2017,2021, the fair value of the First Tranche Warrants and Second Tranche Warrants was $8.5 million and $6.9 million, respectively. The Company estimated the fair value of the Warrants using the Black-Scholes-Merton option pricing model. The fair value assumptions related to the Warrants as of November 3, 2021 and December 31, 2021 were as follows:
 As of November 3, 2021
 Tranche 1Tranche 2
Expected volatility74.90%74.50%
Expected term2.84 years2.95 years
Risk-free interest rate0.77%0.77%
Expected dividend yield—%—%
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CONCERT PHARMACEUTICALS, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
 As of December 31, 2021
 Tranche 1Tranche 2
Expected volatility75.90%76.40%
Expected term2.68 years2.80 years
Risk-free interest rate0.97%0.97%
Expected dividend yield—%—%
The expected term is probability-weighted based on the anticipated terms dictated by the possible outcomes of the Warrants. The expected volatility is calculated based on the historical volatility of the Company recognized $143.8commensurate with the expected term. The risk-free interest rate is based on the average treasury bill interest rate over a period commensurate with the expected term. The expected dividend yield is zero, as the Company has not paid any dividends to date and has no current intention of paying cash dividends.
Related Party Participation in the 2021 Financing
The Investors in the 2021 Financing included RA Capital. At the time of entering into the 2021 Financing, RA Capital held greater than 5% of the Company's outstanding common stock, and two members of the Company's board of directors maintained minority, non-controlling interests in RA Capital. RA Capital purchased 7,500 shares of Series X1 Preferred Stock, 7,500 Warrants and a base amount of 16.2%, which could potentially increase up to 23.1%, of the Royalty Interest for $30.0 million in revenue with $0.3 million remaining incash.
As of December 31, 2021, the Company's consolidated balance sheet includes RA Capital's portion of deferred revenue subjectand warrant liabilities of $2.2 million and $7.1 million, respectively. For the year ended December 31, 2021, the Company's consolidated statement of operations and consolidated statement of cash flows include RA Capital's portion of the unrealized loss on warrant liabilities of $1.0 million. Additionally, the consolidated statement of cash flows includes proceeds net of issuance of costs received from RA Capital of $29.7 million for the year ended December 31, 2021.
15. 2020 Sale of Common Stock and Pre-Funded Warrants
In January 2020, the Company sold 5,735,283 shares of common stock through an underwritten public offering at a price to the completionpublic of transition services provided$9.92 per share, which included the full exercise of the underwriters’ option to Vertex pursuant topurchase 982,863 additional shares of common stock. At the Asset Purchase Agreement.


15. Loan Payable and Warrant to Purchase Redeemable Securities
On December 22, 2011,same time, the Company entered intosold to a Loan and Security Agreement, or the Loan and Security Agreement, with Hercules Technology Growth Capital, Inc., or Hercules. The Loan and Security Agreement provides for aggregate advances of up to $20 million in two tranches. Under the first tranche, the Company obtained an advance on December 22, 2011 totaling $7.5 million, or the December 2011 Advance. Under the second tranche, the Company obtained an advance on March 29, 2012 totaling $12.5 million, or the March 2012 Advance. Each advance made under the Loan and Security Agreement had an interest rate of 8.5%.
On October 1, 2015, the Company made its final payment to Hercules, thereby fulfilling all obligations under the Loan and Security Agreement.
In connection with the Loan and Security Agreement, the Company granted Hercules a warrant, the Warrant,certain existing investor pre-funded warrants to purchase up to 200,000 shares of Series C Preferred Stock at an exercise price of $2.50 per share which vested immediately upon the December 2011 Advance. Upon the draw of the March 2012 Advance, the Warrant became exercisable for an additional 200,000 shares of Series C Preferred Stock at an exercise price of $2.50 per share. Upon completion of the Company’s IPO in February 2014 the Warrant became exercisable for an aggregate of 70,7961,800,000 shares of common stock at a purchase price of $9.919 per pre-funded warrant, which represents the per share public offering price for the common stock less the $0.001 per share exercise price for each pre-funded warrant. The aggregate net proceeds to the Company from the 2020 Financing was $70.1 million, after deducting underwriting discounts and commissions and other offering expenses payable by the Company.
The pre-funded warrants are exercisable at any time by either (i) payment in full in immediately available funds for the number of shares of common stock purchased upon such exercise or (ii) a cashless exercise, in which case the holder would receive upon such exercise the net number of shares of common stock determined according to the formula set forth in the pre-funded warrant. A holder will not be entitled to exercise any portion of any pre-funded warrant if the holder’s ownership of the Company’s common stock at anwould exceed 19.99% following such exercise.
In the event of certain fundamental transactions, the holders of the pre-funded warrants will be entitled to receive upon exercise price of $14.13 per share.
Pursuant to ASC Topic 480, Distinguishing Liabilities from Equity, for periodsthe pre-funded warrants the kind and amount of securities, cash or other property that the holders would have received had they exercised the pre-funded warrants immediately prior to such fundamental transaction without regard to any limitations on exercise contained in the Company’s IPO the Warrant waspre-funded warrants.
The pre-funded warrants were classified as a liability and was re-measured to the-then current value at each balance sheet date. The Warrant liability was determined based on Level 3 inputs utilizing the Black-Scholes-Merton option pricing model. On February 19, 2014, upon completioncomponent of the IPO, the Warrant converted into a warrant to purchase common stock and the Company reclassified the fair value of the Warrant as of February 19, 2014 topermanent stockholders’ equity within additional paid-in capital and willwere recorded at the issuance date using a relative fair value allocation method. The pre-funded warrants are equity classified because they are freestanding financial instruments that are legally detachable and separately exercisable from the equity instruments, are immediately exercisable, do not beembody an obligation for the Company to repurchase its shares, permit the holders to receive a fixed number of shares of common stock upon exercise, are indexed to the Company’s common stock and meet the equity classification criteria. In addition, such pre-funded warrants do not provide any guarantee of value or return. The Company valued the pre-funded warrants at issuance, concluding that their sales price approximated their fair value, and allocated net proceeds from the sale proportionately to the common stock and pre-funded warrants, of which $16.7 million was allocated to the pre-funded warrants and recorded as a component of additional paid-in capital.
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CONCERT PHARMACEUTICALS, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
16. 401(k) Retirement Plan
In January 2008, the Company established the Concert Pharmaceuticals 401(k) Retirement Plan, or the 401(k) Plan, in which substantially all of its permanent employees are eligible to contribute a percentage of base wages up to an amount not to exceed an annual statutory maximum. The Company matches 50% of the first 6% of an employee’s contributions, subject to remeasurement in future periods. statutory limits.
The Company made matching contributions under the 401(k) Plan of $0.4 million for each of the years ended December 31, 2021 and 2020.
17. Warrants to Purchase Redeemable Securities
On June 8, 2017, the Company entered into a Loan Agreement with Hercules pursuant to which Hercules agreed to make available to the Company a Term Loan Facility in the amount of $30.0 million, subject to certain terms and conditions. The Company borrowed $30.0 million under the Loan Agreement in one advance. The Company incurred $0.3 million in loan issuance costs paid directly to the lenders, which was offset against the loan proceeds as a loan discount.

The advance under the Loan and Security Agreement bore interest at a variable rate of the greater of 8.55% and an amount equal to 8.55% plus the prime rate of interest minus 4.50%. Through September 7, 2017, the Term Loan Facility had an interest rate of 8.55%. Pursuant to the Loan Agreement, the Company had the option to prepay the principal of the Loan Agreement at any time subject to a prepayment charge; however the prepayment charge was waived upon the completion of the sale of CTP-656 to Vertex, discussed further in Note 14, and the prepayment of the Term Loan Facility after the 90th day following the closing date of the Loan Agreement but prior to the six month anniversary of the closing date of the Loan Agreement.

On September 7, 2017, the Company paid a total of $30.8 million to Hercules, representing the principal, accrued and unpaid interest, fees, costs and expenses outstanding under the Loan Agreement. The payoff amount included a final end of term charge to Hercules in the amount of $0.7 million, reduced from the $1.5 million end of term charge required had the debt been held to maturity. Upon the payment of the $30.8 million pursuant to a payoff letter between the Company and Hercules, all outstanding indebtedness and obligations of the Company owed to Hercules under the Loan Agreement were paid in full, and the Loan Agreement was terminated. As a result of the debt extinguishment, the Company recognized a loss of $1.4 million during the year ended December 31, 2017.

Technology Growth Capital, Inc., or Hercules. In connection with the entryentering into the Loan Agreement, the Company issued warrants, (the "Warrants")or the Hercules Warrants, to certain entities affiliated with Hercules, exercisable for an aggregate of 61,273 shares of the Company’s common stock at an exercise price of $12.24 per share. The Hercules Warrants have a five yearfive-year term expiringthat expires on June 8, 2022 and may be exercised on a cashless basis. The Hercules Warrants had a total relative fair value of $0.5 million upon issuance and were recorded as a debt discount.

Pursuant to ASC Topic 480, Distinguishing Liabilities from Equity, and ASC Topic 815, Derivatives and Hedging, the Hercules Warrants were classified as equity and were initially measured at relative fair value. Subsequent changes to fair value will not be recognized so long as the instrument continues to be equity classified. To determine the relative fair value, the Company measured the fair value of the Hercules Warrants as of June 8, 2017 using the Black-Scholes-Merton option pricing model. The significant assumptions used in estimating the fair value of the Hercules Warrants include the volatility of the stock underlying the warrants,Hercules Warrants, risk-free interest rate and estimated life of the warrant.Hercules Warrants. The Company used the following weighted-average assumptions:
Expected volatility73.71%73.71%
Expected term (in years)5
Risk-free interest rate1.75%1.75%
Expected dividend yield%

Consistent with the Company’s weighted-average assumptions used in determining the fair value of options in 2017, expected volatility was estimated using a weighted-averageweighted average of the Company'sCompany’s historical volatility of its common stock and the historical volatility of the common stock of a group of similar companies that were publicly traded.


16. Disgorgement of Profits

On December 28, 2017, the Company received $3.6 million due to a disgorgement of short-swing profits arising from the sales of the Company's stock by a greater than 10% stockholder pursuant to Section 16(b) of the Securities and Exchange Act of 1934. The funds disgorged to the Company were based on a formulaic computation as proscribed by the 1934 Act as a result of security activities that generally fall under the Section 16(b) rules.

The sales of the Company's stock was conducted without the knowledge of the Company, and the disgorgement profits were unrelated to the Company's primary business operations. Furthermore, under Section 16(b) of the Securities and Exchange Act of 1934, the Company was legally entitled to receive the disgorged profits without any corresponding obligations owed by the Company and no shares or other benefits were given to BVF by the Company in exchange for the disgorgement proceeds. As a result, the disgorgement receipt was recognized in other income for the fiscal year ended December 31, 2017.

CONCERT PHARMACEUTICALS, INC.
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS


17. 401(k) Retirement Plan
In January 2008, the Company established the Concert Pharmaceuticals 401(k) Retirement Plan (the 401(k) Plan) in which substantially all of its permanent employees are eligible to contribute a percentage of base wages up to an amount not to exceed an annual statutory maximum. The Company matches 50% of the first 6% of an employee’s contributions subject to statutory limits.
The Company made matching contributions under the 401(k) Plan of $0.3 million, $0.3 million and $0.2 million for the years ended December 31, 2017, 2016 and 2015, respectively.

18. Quarterly Financial Information (unaudited)
  Three Months Ended
  March 31,
2017
 June 30,
2017
 September 30,
2017
 December 31,
2017
  
(in thousands, except per share data)
(unaudited)
Revenue $20
 $15
 $143,844
 $12
Operating expenses 13,490
 12,992
 12,011
 12,749
Income (Loss) from operations (13,470) (12,977) 131,833
 (12,737)
Other income (expense), net 137
 (50) (1,591) 4,194
(Provision) Benefit for income taxes 
 
 (2,177) 2,477
Net income (loss) $(13,333) $(13,027) $128,065
 $(6,066)
Net income (loss) per share—basic $(0.60) $(0.58) $5.61
 $(0.26)
Net income (loss) per share - diluted $(0.60) $(0.58) $5.44
 $(0.26)
  Three Months Ended
  
March 31,
2016
 
June 30,
2016
 
September 30,
2016
 
December 31,
2016
  
(in thousands, except per share data)
(unaudited)
Revenue $56
 $71
 $26
 $21
Operating expenses 14,030
 13,644
 11,494
 12,173
Loss from operations (13,974) (13,573) (11,468) (12,152)
Other income, net 94
 132
 112
 109
Net loss $(13,880) $(13,441) $(11,356) $(12,043)
Net loss per share - basic and diluted $(0.63) $(0.60) $(0.51) $(0.54)

ITEM 9.Changes in and Disagreements with Accountants on Accounting and Financial Disclosure
None.
ITEM 9A.Controls and Procedures
Evaluation of Disclosure Controls and Procedures
The term “disclosure controls and procedures,” as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended, or the Exchange Act refers to controls and procedures that are designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is recorded, processed, summarized and reported, within the time periods specified in the Securities and Exchange Commission’sSEC’s rules and forms.


Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is accumulated and communicated to the company’s management, including its principal executive and principal financial officers, or persons performing similar functions, as appropriate to allow timely decisions regarding required disclosure. Our management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving their objectives and our management necessarily applies its judgment in evaluating the cost-benefit relationship of possible controls and procedures. Our disclosure controls and procedures are designed to provide reasonable assurance of achieving their control objectives.
Our management, with the participation of our Chief Executive Officer and Chief Financial Officer, has evaluated the effectiveness of our disclosure controls and procedures as of December 31, 2017,2021, the end of the period covered by this Annual
102


Report on Form 10-K. Based upon such evaluation, our Chief Executive Officer and Chief Financial Officer have concluded that our disclosure controls and procedures were effective at the reasonable assurance level as of such date.
Management’s Report on Internal Control Over Financial Reporting
Our management is responsible for establishing and maintaining adequate internal control over financial reporting. Internal control over financial reporting is defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act as a process designed by, or under the supervision of, a company’s principal executive officer and principal financial officer, or persons performing similar functions, and effected by a company’s board of directors, management and other personnel, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principlesGAAP and includes those policies and procedures that:
pertain to the maintenance of records that in reasonable detail accurately and fairly reflect the transactions and dispositions of a company’s assets;
provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles,GAAP, and that a company’s receipts and expenditures are being made only in accordance with authorizations of the company’s management and directors; and
provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use or disposition of our assets that could have a material effect on the financial statements.
Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.
Under the supervision of and with the participation of our principal executive officer and principal financial officer, our management assessed the effectiveness of our internal control over financial reporting as of December 31, 20172021 based on the criteria set forth by the Committee of Sponsoring Organizations of the Treadway Commission (COSO) in Internal Control—Integrated Framework (2013 framework). Based on this assessment, management concluded that our internal control over financial reporting was effective as of December 31, 2017.2021.
Changes in Internal Control over Financial Reporting
There was no change in our internal control over financial reporting that occurred during the three months ended December 31, 20172021 that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

ITEM 9B.Other Information
None.
ITEM 9B.9C.Other InformationDisclosure Regarding Foreign Jurisdictions that Prevent Inspections
None.

103






Part III
Item 10. Directors, Executive Officers and Corporate Governance

EXECUTIVE OFFICERS AND DIRECTORS

The following table sets forth the name, age and positions of each ofinformation required by Item 10 will be included in our executive officers and directors as of February 26, 2018.
NameAgePosition(s)
Executive Officers
Roger D. Tung, Ph. D.58
President and Chief Executive Officer, Director
James V. Cassella, Ph.D.63
Chief Development Officer
Nancy Stuart59
Chief Operating Officer
Marc Becker46
Chief Financial Officer
Lynette Herscha, J.D.46
General Counsel
Non-Employee Directors
Richard H. Aldrich63
Director, Chairman of the Board of Directors
Thomas G. Auchincloss, Jr.56
Director
Ronald W. Barrett, Ph.D.62
Director
Meghan FitzGerald, Ph.D.47
Director
Christine van Heek61
Director
Peter Barton Hutt, LL.M83
Director
Wilfred E. Jaeger, M.D.62
Director
Wendell Wierenga, Ph.D.70
Director

Executive Officers

Roger D. Tung, Ph.D. is our co-founder and has served as our President and Chief Executive Officer and as a member of our Board of Directors since April 2006. Before Concert, Dr. Tung was a founding scientist at Vertex Pharmaceuticals Incorporated, a pharmaceutical company, where he was employed from 1989 to 2005, most recently as its Vice President of Drug Discovery. Prior to Vertex, he held various positions at Merck, Sharp & Dohme Research Laboratories, a global healthcare provider, and The Squibb Institute for Medicinal Chemistry. Dr. Tung received a B.A. in Chemistry from Reed College and a Ph.D. in Medicinal Chemistry at the University of Wisconsin-Madison. We believe that Dr. Tung’s detailed knowledge of our Company and his 33 year career in the global pharmaceutical and biotechnology industries, including his roles at Vertex, provide a critical contributiondefinitive proxy statement relating to our Board2022 Annual Meeting of Directors.

James V. Cassella has served as our Chief Development Officer since February 2015. Prior to joining Concert, Dr. Cassella served as Executive Vice President, Research and Development and Chief Scientific Officer of Alexza Pharmaceuticals, Inc. from July 2012 to January 2015 and served as its Senior Vice President, Research and Development from June 2004 to July 2012. From April 1989 to April 2004, Dr. Cassella held various management positions at Neurogen Corporation, a publicly traded biotechnology company. Prior to Neurogen, Dr. Cassella was Assistant Professor of Neuroscience at Oberlin College. Dr. Cassella received a Ph.D. in physiological psychology from Dartmouth College, completed a postdoctoral fellowship in the Department of Psychiatry at the Yale University School of Medicine and received a B.A. in psychology from the University of New Haven.



Nancy Stuart has served as our Chief Operating Officer since October 2007 and was our Senior Vice President, Corporate Strategy and Operations from July 2006 to October 2007. Prior to joining Concert, Ms. Stuart held various business operations and business development positions at Amgen Inc., a biopharmaceutical company, Kinetix Pharmaceuticals, Inc., a pharmaceutical company subsequently acquired by Amgen, Scion Pharmaceuticals, Inc., a pharmaceutical company, Vertex and Genzyme Corporation, a biotechnology company subsequently acquired by Sanofi S.A. Ms. Stuart holds a B.S. from the University of Michigan, and an M.B.A. from the Simmons College Graduate School of Management.

Marc Becker has served as our Chief Financial Officer and principal financial officer since January 2018. Prior to joining Concert, Mr. Becker served as the Chief Financial Officer of CRISPR Therapeutics, a publicly traded biotechnology company, from February 2016 to September 2017. From January 2012 to February 2016, Mr. Becker was the Chief Financial Officer of rEVO Biologics, a biotechnology company. Prior to rEVO Biologics, Mr. Becker held increasing roles of responsibility at Genzyme from August 2001 to October 2011, culminating in Vice President, Finance. Mr. Becker received an M.B.A. from Babson College and a B.S. in Business Administration from the University of Massachusetts and was licensed as a certified public accountant.

Lynette Herscha has served as our General Counsel and Corporate Secretary since June 1, 2017. Previously, Ms. Herscha served as our Vice President and Associate General Counsel and Assistant Secretary since July 2014. Prior to joining Concert, Ms. Herscha held senior legal positions at Momenta Pharmaceuticals, Inc., a biotechnology company and Phase Forward Incorporated, a technology company. Prior to that, Ms. Herscha worked in the law offices of Fulbright & Jaworksi. Ms. Herscha earned her Juris Doctor and B.A. in English from Boston University.

Non-Employee Directors
Richard H. Aldrich is our co-founder and has served as a member of our Board of Directors and as Chairman of our Board of Directors since May 2006. Mr. Aldrich is a co-founder and has been a Partner of Longwood Fund, a venture capital firm, since December 2010. Mr. Aldrich has been an employee of Longwood Management LLC since August 2015. Mr. Aldrich founded RA Capital Management LLC, a hedge fund, in 2001 and served as a Managing Member from 2001 to 2008 and as a Co-Founding Member from 2008 until 2011. Mr. Aldrich has co-founded and helped to build several biotechnology companies including Sirtris Pharmaceuticals, Inc., (acquired by GlaxoSmithKline in 2008), Alnara Pharmaceuticals, Inc. (acquired by Eli Lilly in 2010), Verastem, Inc., OvaScience, Inc. and FlexPharma. Mr. Aldrich was also a founding employee of Vertex Pharmaceuticals Incorporated, where he held the position of Senior Vice President and Chief Business Officer and managed all commercial and operating functions from 1989 to 2001. Prior to joining Vertex, Mr. Aldrich held several management positions at Biogen Inc. Mr. Aldrich serves on the board of directors of OvaScience, Inc., a public life sciences company where he serves as the Lead Director. Mr. Aldrich also serves on the board of a number of private biotechnology companies. During the last five years, Mr. Aldrich also served as a member of the board of directors of PTC Therapeutics, Inc., a public biopharmaceutical company and Verastem, Inc., a public biopharmaceutical company. Mr. Aldrich received his B.S. in Management from Boston College, and an M.B.A. from the Amos Tuck School at Dartmouth College. We believe Mr. Aldrich’s broad-based experience in business, including his leadership and board experience at life science companies, and his familiarity with our business as a co-founder of our company allow him to be a key contributor to our Board of Directors.
Thomas G. Auchincloss, Jr. has served as a member of our Board of Directors since December 2014. Since October 2013, Mr. Auchincloss has served as Managing Partner at Counterpoint Trading Company, LLC, a private investment firm. From August 2007 through September 2013, Mr. Auchincloss was self-employed in private investing. From May 2005 to August 2007, Mr. Auchincloss worked as Chief Financial Officer of Metabolix, Inc., a public biomaterials company. Prior to joining Metabolix, Mr. Auchincloss served as a consultant with Metabolix, from April 2002 to May 2005, providing business development, financial and strategic consulting services. From 1994 to 2001, Mr. Auchincloss served in a variety of positions at Vertex Pharmaceuticals Incorporated, most recently as Vice President, Finance and Treasurer. Mr. Auchincloss received a B.S. in Business Administration from Babson College and an M.B.A. in Finance from the Wharton School. We believe that Mr. Auchincloss’ financial and industry experience, including his experience as the chief financial officer of a publicly traded biomaterials company, make him a key contributor to our Board of Directors.
Ronald W. Barrett, Ph.D. has served as a member of our Board of Directors since December 2007. Dr. Barrett was a founder of XenoPort, Inc., a public biopharmaceutical company, and served as its Chief Executive Officer from 2001 to 2015, its Chief Scientific Officer from 1999 to 2001 and as a member of its board of directors from 1999 to 2015. Prior to XenoPort, Dr. Barrett held various positions at Affymax Research Institute, a drug discovery company now owned by GlaxoSmithKline plc, and Abbott Laboratories, a healthcare company. During the last five years, Dr. Barrett also served as a member of the board of directors of XenoPort. Dr. Barrett received a B.S. from Bucknell University and a Ph.D. in pharmacology from Rutgers


University. We believe that Dr. Barrett’s industry and board experience, including his experience as the chief executive officer of a publicly traded biopharmaceutical company, makes him a key contributor to our Board of Directors.

Meghan FitzGerald, DrPH. has served as a member of our Board of Directors since March 2016. Since December 2016, Ms. FitzGerald has served as a Managing Partner at L1 Health LLC. From May 2015 to October 2016, Ms. FitzGerald served as Executive Vice President of Strategy and Policy at Cardinal Health. From October 2010 until May 2015, she served as President, Cardinal Health Specialty Solutions. Since July 2017, Ms. FitzGerald has served on the board of directors of Arix Bioscience plc, a publicly traded biotechnology company. Ms. FitzGerald also serves on the board of a number of private biotechnology companies. Ms. FitzGerald obtained a Doctor of Public Health degree at New York Medical College, focusing on health policy. She also earned a master’s degree in public health from Columbia University and a B.S. in nursing from Fairfield University.  Ms. FitzGerald’s broad-based experience in business, including her leadership and board experience in the healthcare industry, allow her to be a key contributor to our Board of Directors.
Christine van Heek has served as a member of our Board of Directors since April 2016. Ms. van Heek has served as an adviser and consultant to several companies in the bio-pharmaceutical industry. From 1991 to 2003, Ms. van Heek served in various roles at Genzyme, Inc., a biotechnology company, including positions as Corporate Officer and President, Therapeutics Division; General Manager, Renal Division; and Vice President, Global Marketing. In addition, she has held various sales and marketing positions at Genentech, Inc. and Caremark/HHCA. During the last five years, Ms. van Heek also served as a member of the board of directors of Affymax, Inc., a biopharmaceutical company. Ms. van Heek holds an M.B.A. from Lindenwood University in St. Louis and a B.S.N. from the University of Iowa. We believe that Ms. van Heek's industry experience, including her extensive experience in strategic roles of a publicly traded biomaterials company, make her a key contributor to our Board of Directors.
Peter Barton Hutt has served as a member of our Board of Directors since December 2006. Mr. Hutt has practiced law at Covington & Burling LLP, specializing in food and drug law, since 1960 (except for the period from 1971 to 1975) and currently serves as senior counsel. From 1971 to 1975, he was Chief Counsel for the Food and Drug Administration. Mr. Hutt is a member of the board of directors of Flex Pharma, Inc., and Q Therapeutics, Inc., each of which is a public biotechnology company, as well as numerous private companies. During the last five years, Mr. Hutt also served as a member of the board of directors of BIND Therapeutics, Inc., Seres Health, Inc., Xoma Ltd., Celera Corporation, a public biotechnology company that was acquired by Quest Diagnostics, Inc. in 2011, DBV Technologies SA, a public biotechnology company, and Momenta Pharmaceuticals, Inc., a public biotechnology company. Mr. Hutt received a B.A. from Yale University, an LL.B. from Harvard Law School and an LL.M. from New York University School of Law. We believe Mr. Hutt’s extensive knowledge of regulatory and legal issues related to drug development and his service on numerous boards of directors allow him to be a key contributor to our Board of Directors.
Wilfred E. Jaeger, M.D. has served as a member of our Board of Directors since May 2006. Dr. Jaeger co-founded Three Arch Partners, a venture capital firm, in 1993 and has served as a Partner since that time. Prior to co-founding Three Arch Partners, Dr. Jaeger was a general partner at Schroder Ventures. He is also a member of the board of directors of Threshold Pharmaceuticals, Inc., a public pharmaceutical company, and Nevro Corporation, a public medical device company, as well as numerous private companies. Dr. Jaeger received a B.S. in Biology from the University of British Columbia, his M.D. from the University of British Columbia School of Medicine and an M.B.A. from Stanford University. We believe that Dr. Jaeger’s financial and medical knowledge and experience allow him to be a key contributor to our Board of Directors.

Wendell Wierenga, Ph.D. has served as a member of our Board of Directors since March 2014. From June 2011 to February 2014, Dr. Wierenga served as Executive Vice President, Research and Development of Santarus, Inc., a public biopharmaceutical company that was acquired by Salix Pharmaceuticals, Ltd. in January 2014. From 2007 to May 2011, Dr. Wierenga served as Executive Vice President, Research and Development of Ambit Biosciences Corporation, a biopharmaceutical company engaged in the discovery and development of small-molecule kinase inhibitors. Dr. Wierenga received a B.S. from Hope College and a Ph.D. in chemistry from Stanford University. Dr. Wierenga is a member of the boards of directors of Apricus Biosciences, Inc., and Cytokinetics, Incorporated, which are publicly traded biopharmaceutical companies. During the last five years, Dr. Wierenga also served as a member of the boards of directors of Anacor Pharmaceuticals, Inc., acquired by Pfizer in 2016, Xenoport, Inc., acquired by Arbor Pharmaceuticals in 2016, Ocera Therapeutics, Inc., acquired by Mallinckrodt in 2017, and Onyx Pharmaceuticals, Inc., a public biopharmaceutical company that was acquired by Amgen in 2013. We believe that Dr. Wierenga’s extensive experience in biopharmaceutical research and development and his service on the boards of directors of several public biopharmaceutical companies allow him to be a key contributor to our Board of Directors.





Audit Committee
The members of our audit committee are Mr. Auchincloss, Dr. Jaeger and Ms. van Heek. Mr. Auchincloss is the chair of the audit committee. Our Board of Directors has determined that each of Mr. Auchincloss and Dr. Jaeger qualifies as an audit committee financial expert within the meaning of SEC regulations and the NASDAQ Listing Rules. In making this determination, our board has considered the formal education and nature and scope of each such director’s previous experience, coupled with past and present service on various audit committees. Our audit committee assists our Board of Directors in its oversight of our accounting and financial reporting process and the audits of our financial statements. The audit committee met nine times during fiscal year 2017, including telephonic meetings. The audit committee’s responsibilities include:
appointing, approving the compensation of, and assessing the independence of our independent registered public accounting firm;
overseeing the work of our independent registered public accounting firm, including through the receipt and consideration of reports from such firm;
reviewing and discussing with management and the independent registered public accounting firm our annual and quarterly financial statements and related disclosures;
monitoring our internal control over financial reporting, disclosure controls and procedures and code of business conduct and ethics;
overseeing our internal audit function, if any;
discussing our risk management policies;
establishing policies regarding hiring employees from the independent registered public accounting firm and procedures for the receipt, retention and treatment of accounting related complaints and concerns;
meeting independently with our internal auditing staff, independent registered public accounting firm and management;
reviewing and approving or ratifying any related person transactions; and
preparing the audit committee report required by SEC rules.
We believe that the composition of our audit committee meets the requirements for independence under current NASDAQ listing standards and SEC rules and regulations. Our Board of Directors has determined that Mr. Auchincloss, Dr. Jaeger and Ms. van Heek are independent as independence is currently defined in applicable NASDAQ listing standards.
Code of Business Conduct and Ethics
We have adopted a written code of business conduct and ethics that applies to our directors, officers and employees, including our principal executive officer, principal financial officer, principal accounting officer or controller, or persons performing similar functions. We have posted in the "Corporate Governance" page of the "Investors" section on our website, www.concertpharma.com, a current copy of the code and all disclosures that are required by law or NASDAQ stock market listing standards concerning any amendments to, or waivers from, any provision of the code. Information contained on the website is not incorporated by reference in, or considered part of, this Annual Report on Form 10-K.
Section 16(A) Beneficial Ownership Reporting Compliance
Section 16(a) of the Exchange Act requires our directors, executive officers, and persons holding more than 10% of Concert common stock to report their initial ownership of the common stock and other equity securities and any changes in that ownership in reports that must be filed with the SEC. The SEC has designated specific deadlines for these reports, and we must identify in this proxy statement those persons who did not file these reports when due. Based solely on a review of reports furnished to us, or written representations from reporting persons, we believe all directors, executive officers, and 10% owners timely filed all reports regarding transactions in Concert’s securities requiredStockholders, to be filed for 2017no later than 120 days after December 31, 2021, and is incorporated herein by Section 16(a) under the Exchange Act.reference.



Item 11. Executive Compensation
2017 Summary Compensation Table
The following table sets forth information regarding total compensation awarded to, earned by and paid to each individual who served as our chief executive officer during the year ended December 31, 2017 and our two most highly-compensated executive officers (other than our chief executive officer) who were serving as executive officers as of December 31, 2017 for services rendered in all capacities to the Company for the years indicated below. We refer to these individuals as our “named executive officers”.

Name Year Salary
($)
 Bonus
($)
 
Option awards
($)
(1)
 Stock awards ($) 
Non-equity
incentive plan
compensation
($)
(4)
 
All other
compensation
($)
(5)
 Total ($)
Roger D. Tung, Ph.D. 2017 517,402
 
 1,496,440
 
1,109,600 (2)

 297,506
 9,906
 3,430,854
President and Chief Executive Officer 2016 499,905
 
 1,937,609
 
 199,962
 9,756
 2,647,232
James V. Cassella, Ph.D. 2017 406,445
 
 523,754
 
832,200 (3)

 186,965
 10,872
 1,960,236
Senior Vice President and Chief Development Officer 2016 392,700
 
 569,885
 
 125,664
 10,722
 1,098,971
Nancy Stuart 2017 398,247
 
 523,754
 
832,200 (3)

 183,194
 9,906
 1,947,301
Chief Operating Officer 2016 384,780
 
 911,816
 
 123,130
 9,756
 1,429,482
(1)
The amounts included in the “Option awards” column reflect the aggregate grant date fair value of option awards granted in the years indicated, calculated in accordance with FASB ASC Topic 718. Such aggregate grant date fair values do not take into account any estimated forfeitures related to service-vesting conditions. The amounts reported in this column reflect the accounting cost for these stock options, and do not correspond to the actual economic value that may be received by the named executive officer upon exercise of the options. Assumptions used in the calculation of these amounts are included in Note 8 to the consolidated financial statements included elsewhere in this Annual Report on Form 10-K.
(2)The amount reported reflects the aggregate grant date fair value of performance stock units issued to Dr. Tung during fiscal year 2017, calculated in accordance with FASB ASC Topic 718. Assumptions used in the calculation of this amount are included in Note 8 to the consolidated financial statements included elsewhere in this Annual Report on Form 10-K.
(3)The amounts reported reflect the aggregate grant date fair value of restricted stock units and performance stock units issued to Dr. Cassella and Ms. Stuart during fiscal year 2017, calculated in accordance with FASB ASC Topic 718. Assumptions used in the calculation of these amounts are included in Note 8 to the consolidated financial statements included elsewhere in this Annual Report on Form 10-K.
(4)
Consists of cash bonuses earned under our 2017 and 2016 executive bonus programs with respect to the years indicated. See the “Narrative to Summary Compensation Table” below for a description of the 2017 executive bonus program.
(5)
Amounts disclosed under the column “All Other Compensation” for 2017 represent Company matching contributions to 401(k) accounts and life insurance premiums.

Narrative to Summary Compensation Table
We review compensation annually for all employees, including our executives. In setting executive base salaries and target incentive bonus levels, determining actual incentive bonus amounts and granting equity incentive awards, we consider compensation for comparable positions in the market, the historical compensation levels of our executives, individual performance as compared to our expectations and objectives, our desire to motivate our employees to achieve short- and long-


term results that are in the best interests of our stockholders, and a long-term commitment to our Company. We do not target a specific competitive position or a specific mix of compensation among base salary, bonus or long-term incentives.
Our compensation committee has primary responsibility for determining the compensation of our executive officers. Our compensation committee typically reviews and discusses proposed compensation with the chief executive officer for all executives other than for the chief executive officer. The compensation committee, without the applicable members of management present, discusses recommendations for management and ultimately approves the compensation of our executive officers. During 2017, our compensation committee engaged Radford, an AON Hewitt company, as its independent compensation consultant, to review our executive compensation peer group and program design and to assist with assessing our executives’ compensation relative to those at comparable companies. Our compensation committee considered the relationship that Radford has with us, the members of our Board of Directors and our executive officers. Based on the committee’s evaluation, the compensation committee has determined that Radford is independent and that their work has not raised any conflicts of interests.

Radford assisted the committee in conducting a competitive compensation assessment for our executive officers for the fiscal year ended December 31, 2017. In evaluating the total compensation of our executive officers, the compensation committee, with the assistance of Radford, reviewed compensation information from our peer group companies. Radford then supplemented the peer group proxy information with published survey data, which provided a broader market representation of companies and deeper position reporting.

Using information provided by Radford, the compensation committee establishes a peer group of publicly traded companies in the biopharmaceutical and biotechnology industries that is selected based on a balance of the following criteria:

companies whose number of employees, stage of development and market capitalization are similar, though not necessarily identical, to ours;
companies with similar executive positions to ours;
companies against which we believe we compete for executive talent; and
public companies based in the United States whose compensation and financial data are available in proxy statements or through widely available compensation surveys.

Based on these criteria, our peer group for 2017 was comprised of the following 21 publicly traded companies:
Achillion Pharmaceuticals, Inc.Genocea Biosciences, Inc.Paratek Pharmaceuticals, Inc.
Agenus, Inc.Geron CorporationSangamo Biosciences, Inc.
Akebia Therapeutics, Inc.GlycoMimetics, Inc.Selecta Biosciences, Inc.
Ardelyx, Inc.Ignyta, Inc.Trevena, Inc.
Cytokinetics, Inc.Inovio Pharmaceuticals, Inc.Xencor, Inc.
Edge Therapeutics, Inc.Karyopharm Therapeutics, Inc.Ziopharm Oncology, Inc.
Epyzime, Inc.Mirati Therapeutics, Inc.Zogenix, Inc.

Base salary. In 2017, the base salaries for Dr. Tung, Dr. Cassella, and Ms. Stuart were $517,402, $406,445 and $398,247, respectively. We use base salaries to recognize the experience, skills, knowledge and responsibilities required of all our employees, including our named executive officers. None of our named executive officers is currently party to an employment agreement or other agreement or arrangement that provides for automatic or scheduled increases in base salary.
Annual bonus. Pursuant to our executive bonus program for 2017, our Board of Directors established and approved annual bonus targets based on achievement of specified corporate goals. The target bonus amounts for the named executive officers were 50% of base salary for Dr. Tung and 40% of base salary for each of Dr. Cassella and Ms. Stuart. Our corporate goals are typically focused on the achievement of specific research, clinical, regulatory, financial and strategic goals.  We consider these to be difficult to attain, conducive to the creation of stockholder value and designed to contribute to our current and future


financial success.  The corporate goals for 2017 were to identify new candidate compounds, partner our CTP-656 program, advance our CTP-543 program, and raise capital.
In January 2018, the compensation committee conducted a review to determine and approve the attainment of such goals and to assess the individual performance of each of our named executive officers. Based upon such review and assessment, the compensation committee approved cash incentive bonuses of $297,506 to Dr. Tung, $186,965 to Dr. Cassella and $183,194 to Ms. Stuart for 2017.
Equity incentives. Although we do not have a formal policy with respect to the grant of equity incentive awards to our executive officers, or any formal equity ownership guidelines applicable to them, we believe that equity grants provide our executives with a strong link to our long-term performance, create an ownership culture and help to align the interests of our executives and our stockholders. In addition, we believe that equity grants with a time-based vesting feature promote executive retention because this feature incentivizes our executive officers to remain in our employment during the vesting period. Accordingly, we typically grant stock option awards at the start of employment to each executive officer and our other employees and our compensation committee and Board of Directors periodically review the equity incentive compensation of our named executive officers and other employees, and from time to time, may grant equity incentive awards to them in the form of stock options.
For stock options, the option exercise price is equal to the fair market value of our common stock on the date of grant. Time vested stock option grants made in connection with commencement of employment with us typically vest 25% on the first anniversary of the date of grant or, if earlier, the initial employment date (the "vesting commencement date"), and 6.25% vest per quarter thereafter, through the fourth anniversary of the vesting commencement date. Other stock option grants generally vest 6.25% per quarter through the fourth anniversary of the vesting commencement date.
In January 2017, we granted each of Dr. Tung, Dr. Cassella, and Ms. Stuart an option to purchase 200,000, 70,000 and 70,000 shares of our common stock, respectively. In July 2017, we awarded each of Dr. Tung, Dr. Cassella, and Ms. Stuart restricted stock units that vest subject to the achievement of certain performance conditions in the amount of 80,000, 30,000, and 30,000 stock units, respectively. In addition, Dr. Cassella and Ms. Stuart were each granted 30,000 restricted stock units that are subject to time-based vesting. The vesting conditions applicable to such restricted stock units are described in the footnotes to the "Outstanding Equity Awards at 2017 Fiscal Year End Table" below.


Outstanding Equity Awards at 2017 Fiscal Year End Table
The following table sets forth information regarding outstanding stock options held by our named executive officers as of December 31, 2017.
 Options Awards Stock Awards
NameNumber of securities
underlying unexercised
options (#) exercisable
Number of securities
underlying unexercised
options (#) unexercisable
 Option
exercise
price ($)
Option
expiration
date
 Number of units of stock that have not vested (#) 
Market value of units of stock that have not vested ($) (9)
Equity incentive plan awards: Number of unearned units that have not vested (#) Equity incentive plan awards: Market or payout value of unearned shares, units or other rights that have not vested ($)
Roger D. Tung, Ph.D.27,757

(1)4.58
12/19/2018       
 38,052

(2)4.41
12/10/2019       
 29,202

(3)3.79
12/14/2020       
 39,822

(4)3.50
12/15/2021       
 177,888
25,412
(5)8.40
6/10/2024       
 74,375
95,625
(6)16.85
1/7/2026       
 37,500
162,500
(7)10.97
1/4/2027       
       40,000
(10) 
1,034,800
40,000
(11) 
1,034,800
James V. Cassella, Ph.D.96,250
43,750
(8)14.46
3/5/2025       
 21,875
28,125
(6)16.85
1/7/2026       
 13,125
56,875
(7)10.97
1/4/2027       
       45,000
(12) 
1,164,150
15,000
(13) 
388,050
Nancy Stuart48,882

(1)4.58
12/19/2018       
 34,512

(2)4.41
12/10/2019       
 21,238

(3)3.79
12/14/2020       
 22,122

(4)3.50
12/15/2021       
 87,500
12,500
(5)8.40
06/10/2024       
 35,000
45,000
(6)16.85
01/07/2026       
 13,125
56,875
(7)10.97
01/04/2027       
       45,000
(12) 
1,164,150
15,000
(13) 
388,050


(1)This stock option was granted under our 2006 Stock Option and Grant Plan and was subject to vesting in equal quarterly installments over four years from the vesting start date and fully vested in accordance with its terms on December 19, 2012.
(2)This stock option was granted under our 2006 Stock Option and Grant Plan and was subject to vesting in equal quarterly installments over four years from the vesting start date and fully vested in accordance with its terms on December 10, 2013.
(3)This stock option was granted under our 2006 Stock Option and Grant Plan and was subject to vesting in equal quarterly installments over four years from the vesting start date and fully vested in accordance with its terms on December 14, 2014.
(4)This stock option was granted under our 2006 Stock Option and Grant Plan and was subject to vesting in equal quarterly installments over four years from the vesting start date and fully vested in accordance with its terms on December 15, 2015.
(5)This option was granted under our 2014 Stock Incentive Plan and vested as to 25% of the shares underlying such option on June 10, 2015 and vests as to an additional 6.25% of the shares at the end of each successive quarter thereafter, through and including June 10, 2018.
(6)This option was granted under our 2014 Stock Incentive Plan and vests as to 6.25% of the shares underlying such option at the end of each quarter, through and including January 7, 2020.
(7)This option was granted under our 2014 Stock Incentive Plan and vests as to 6.25% of the shares underlying such option at the end of each quarter, through and including January 4, 2021.
(8)This option was granted under our 2014 Stock Incentive Plan and vested as to 25% of the shares underlying such option on March 5, 2016 and vests as to an additional 6.25% of the shares at the end of each successive quarter thereafter, through and including March 5, 2019.
(9)Based on the closing price of $25.87, which was the closing market price on NASDAQ of our common stock on December 29, 2017, the last trading day of 2017.
(10)These performance stock units were granted on July 6, 2017, with 50% of the award vesting on March 31, 2018 and the remaining 50% eligible to vest on March 31, 2019, subject to the achievement of the closing of the Asset Purchase Agreement with Vertex Pharmaceuticals prior to March 31, 2018 (considered achieved and further discussed in detail at Note 14 of the consolidated financial statements elsewhere in this Annual Report on Form 10-K), provided that Dr. Tung remains employed by the Company through the applicable vesting date.
(11)These performance stock units were granted on July 6, 2017, with 50% of the award eligible to vest on March 31, 2018 and the remaining 50% eligible to vest on March 31, 2019, in each case subject to the institution by the Patent Trial and Appeal Board of a Post Grant Review petition filed by the Company against Incyte Corporation prior to March 31, 2018, provided that Dr. Tung remains employed by the Company through the applicable vesting date.
(12)Consists of restricted stock units granted on July 6, 2017, which vest in full on March 31, 2019 assuming the executive officer remains employed with the Company through such date, and performance stock units granted on July 6, 2017, which vest in full on March 31, 2018, subject to the achievement of the closing of the Asset Purchase Agreement with Vertex Pharmaceuticals prior to March 31, 2018 (considered achieved and further discussed in detail at Note 14 of the consolidated financial statements elsewhere in this Annual Report on Form 10-K), provided that the executive officer remains employed by the Company through the vesting date.
(13)Consists of performance stock units granted on July 6, 2017, which vest in full on March 31, 2018 subject to the achievement of the institution by the Patent Trial and Appeal Board of a Post Grant Review petition filed by the Company against Incyte Corporation prior to March 31, 2018, provided that the executive officer remains employed by the Company through the vesting date.
Employment Agreements, Severance and Change in Control Arrangements
Employment agreements
We have entered into employment agreements with each of our named executive officers. The employment agreements confirm the executive officers’ titles, compensation arrangements, eligibility for benefits made available to employees generally and also provide for certain benefits upon a termination of employment under specified conditions. Each named executive officer’s employment is at will.
Payments and benefits provided upon a qualifying termination not in connection with a change of control
Under the terms of the employment agreements we have entered into with each of the named executive officers, if an executive’s employment is terminated by us other than for "cause" and other than as a result of death or disability or by such executive officer for "good reason", each as defined in such employment agreement, in each case not within the "change of control period", as defined below, and subject to the executive’s execution of an effective general release of potential claims against us, each named executive officer will be entitled to (1) an amount equal to his or her then-current monthly base salary


for a period of 12 months, or 15 months in the case of Dr. Tung, and (2) continued Company paid medical and dental benefits to the extent that the named executive officer was receiving them at the time of termination until the earlier of 12 months following termination, or 15 months following termination in the case of Dr. Tung, and the date the named executive officer’s COBRA continuation coverage expires, subject to certain legal restrictions.
Payments and benefits provided upon a qualifying termination in connection with a change of control
Under the terms of the employment agreements we have entered into with each of the named executive officers, if the executive’s employment is terminated by us or our successor other than for cause or by such executive officer for good reason, in each case, within one year following a "change of control", as defined in such employment agreement (the "change of control period"), and subject to the executive’s execution of an effective general release of potential claims against us, in lieu of the severance benefits described above, each named executive officer will be entitled to:
An amount equal to 12 months (or 18 months in the case of Dr. Tung) of the named executive officer’s base salary, which will be paid as a lump sum if the change of control constitutes a change in control under Section 409A of the Internal Revenue Code.
An amount equal his or her current target bonus (or 1.5 times his target bonus in the case of Dr. Tung).
Continued Company paid medical and dental benefits to the executive to the extent that he or she was receiving them at the time of termination until the earlier of 12 months (or 18 months in the case of Dr. Tung) following termination and the date the named executive officer’s COBRA continuation coverage expires, subject to certain legal restrictions.

In addition, if a change of control occurs and within one year following such change of control we or our successor terminate the executive’s employment other than for cause or the executive’s employment ends due to the executive's death or disability, or the executive terminates his or her employment for good reason then all stock options held by the executive will immediately vest in full.

If the payments or benefits payable to each named executive officer in connection with a change of control would be subject to the excise tax imposed under Section 4999 of the Internal Revenue Code, then those payments or benefits will be reduced to the extent necessary to avoid the imposition of such excise tax but only if such reduction would result in a higher net after-tax benefit to the named executive officer.



The following table summarizes the severance payments and benefits our named executive officers would be entitled to receive, assuming a qualifying termination occurred on December 31, 2017.
Name 
Cash
Severance
($)
(1)
 
Bonus
($)
(2)
 
COBRA
Continuation
($)
(3)
 
Value of
Accelerated
Vesting of Stock Options ($)
(4)
 Total ($)
Roger D. Tung, Ph.D.          
Qualifying termination not in connection with a change of control 646,753
 
 36,223
 
 682,976
Qualifying termination in connection with a change of control 776,103
 388,052
 43,468
 3,727,735
 4,935,358
James V. Cassella, Ph.D.          
Qualifying termination not in connection with a change of control 406,445
 
 29,202
 
 435,647
Qualifying termination in connection with a change of control 406,445
 162,578
 29,202
 1,600,313
 2,198,538
Nancy Stuart          
Qualifying termination not in connection with a change of control 398,247
 
 27,163
 
 425,410
Qualifying termination in connection with a change of control 398,247
 159,299
 27,163
 1,471,713
 2,056,422
(1)
For a termination by us other than for cause or due to death or disability or by the executive for good reason, in each case not during the change of control period, this amount represents, in the case of Dr. Tung, 15 months of base salary, and in the case of Ms. Stuart and Dr. Cassella, 12 months of base salary, each at the rate in effect on December 31, 2017.

In the event of a termination by us other than for cause or by the executive for good reason, in each case within 12 months of a change of control, this amount represents, in the case of Dr. Tung, 18 months base salary, and in the case of Ms. Stuart and Dr. Cassella, 12 months of base salary, each at the rate in effect on December 31, 2017.
(2)In the event of a termination by us other than for cause or by the executive for good reason, in each case within 12 months of a change of control, amounts represent in the case of Dr. Tung, 150% of his target bonus for 2017, and in the case of Ms. Stuart and Dr. Cassella, 100% of the applicable executive’s target bonus for 2017.
(3)This amount represents the Company-paid health and dental coverage. In the case of Dr. Tung, the amounts represent 15 months payable following a termination by us other than for cause or due to death or disability or by him for good reason, in each case not during the change of control period, and represents 18 months payable following a termination by us other than for cause or by him for good reason, in each case within 12 months of a change of control. With respect to Ms. Stuart and Dr. Cassella, amounts represent 12 months of Company-paid health and dental coverage.
(4)In the event of a termination by us other than for cause, termination due to death or disability or a termination by the executive for good reason, in each case within 12 months of a change of control, all unvested stock options held by the executive at such time will immediately vest in full. The values for the accelerated vesting of stock options included in the table above are based on the intrinsic values of such unvested awards on December 31, 2017 (i.e., the difference between the closing price of the Company’s common stock on the NASDAQ Global Market on that date and the applicable exercise price, multiplied by the number of shares for which vesting would have been accelerated).

Other agreements
We have also entered into employee confidentiality, non-competition and proprietary information agreements with each of our named executive officers. Under the employee confidentiality, non-competition and proprietary information agreements, each named executive officer has agreed (1) not to compete with us during his or her employment and for a period of one year after the termination of his or her employment, (2) not to solicit our employees during his or her employment and for a period of one year after the termination of his or her employment, (3) to protect our confidential and proprietary information and (4) to assign to us related intellectual property developed during the course of his or her employment.


401(k) retirement plan
We maintain a 401(k) retirement plan that is intended to be a tax-qualified defined contribution plan under Section 401(k) of the Internal Revenue Code. In general, all of our employees are eligible to participate, beginning on the first day of the month following commencement of their employment. The 401(k) plan includes a salary deferral arrangement pursuant to which participants may elect to reduce their current compensation by up to the statutorily prescribed limit, equal to $18,000 in 2017, and have the amount of the reduction contributed to the 401(k) plan. Participants over the age of 50 are entitled to an additional catch-up contribution up to the statutorily prescribed limit, equal to $6,000 in 2017. Currently, we match 50% of employee contributions up to 6% of the employee’s salary, subject to the statutorily prescribed limit, equal to $8,100 in 2017. The match immediately vests in full.
Director Compensation
During 2017, we did not provide any compensation to Dr. Tung, our Chief Executive Officer, for his service as a member of our Board of Directors. Dr. Tung’s compensation as an executive officer is set forth above under “Executive Compensation—2017 Summary Compensation Table.”
Non-employee director compensation is set by our Board of Directors at the recommendation of our compensation committee. In April 2017, we retained Radford to assist in assessing our non-employee director compensation program and provide recommendations for changes to the program, if any. The 2017 peer group companies were used in the analysis, as well as other market data.
Under our director compensation program, we pay our non-employee directors a cash retainer for their service on the Board of Directors and for their service on each committee of which the director is a member. The Chairman of the Board of Directors and the chairs of each committee receive higher retainers for such service. These fees are payable in arrears in four equal quarterly installments on the last day of each quarter, provided that the amount of such payment is prorated for any portion of such quarter that the director is not serving on our Board of Directors. The fees paid to non-employee directors for their service on the Board of Directors and for their service on each committee of the Board of Directors of which the director is a member are as follows:
     
  Annual Member Fee ($) Chairman Annual Fee ($)
Board of Directors 40,000
 65,000
Audit Committee 7,500
 15,000
Compensation Committee 5,000
 10,000
Nominating and Corporate Governance Committee 3,000
 7,000
We also reimburse our non-employee directors for reasonable travel and out-of-pocket expenses incurred in connection with attending our Board of Director and committee meetings.
In addition, under our director compensation program, each new non-employee director elected to our Board of Directors receives an option to purchase 25,000 shares of our common stock. Each of these options vest in equal quarterly installments over a three-year period measured from the date of grant, subject to the director’s continued service as a director, and will become vested and exercisable in full upon a change in control of our Company. Further, on the date of the first board meeting held after each annual meeting of stockholders, each non-employee director that has served on our Board of Directors for at least six months will receive an option to purchase 10,000 shares of our common stock. Each of these options vest in equal quarterly installments over a one-year period measured from the date of grant, subject to the director’s continued service as a director, and will become vested and exercisable in full upon a change in control of our Company. The exercise price of each option is equal to the fair market value of a share of our common stock on the date of grant.
This program is intended to provide a total compensation package that enables us to attract and retain qualified and experienced individuals to serve as our directors and to align our directors’ interests with those of our stockholders.
In accordance with our director compensation program, in June 2017 we granted options to purchase 10,000 shares of our common stock to each non-employee serving on the Board of Directors. 


The following table sets forth information regarding compensation earned by our non-employee directors during 2017.
       
Name Fees earned or
paid in cash ($)
 Option awards ($)(1) Total ($)
Richard H. Aldrich 77,000
 90,720
 167,720
Thomas G. Auchincloss, Jr. 52,720
 90,720
 143,440
Ronald W. Barrett, Ph.D. 47,720
 90,720
 138,440
Meghan FitzGerald, Ph.D. 42,720
 90,720
 133,440
Christine van Heek 45,220
 90,720
 135,940
Peter Barton Hutt 29,970
 90,720
 120,690
Wilfred E. Jaeger, M.D. 50,220
 90,720
 140,940
Wendell Wierenga, Ph.D. 40,720
 90,720
 131,440
(1)
The amounts included in the “Option awards” column reflect the aggregate grant date fair value of options granted during 2017 calculated in accordance with FASB ASC Topic 718. Such aggregate grant date fair values do not take into account any estimated forfeitures related to service-vesting conditions. The amounts reported in this column reflect the accounting cost for these stock options, and do not correspond to the actual economic value that may be received by the director upon exercise of the options. Assumptions used in the calculation of these amounts are included in Note 8 to the consolidated financial statements appearing elsewhere in this Annual Report on Form 10-K. As of December 31, 2017. As of December 31, 2017, the non-employee members of our Board of Directors held the following outstanding equity awards:
Mr. Aldrich held stock options to purchase 51,236 shares of common stock in the aggregate, of which 46,236 shares were vested, with the remaining shares scheduled to vest through and including June 15, 2018;
Mr. Auchincloss held stock options to purchase 55,000 shares of common stock in the aggregate, of which 50,000 shares were vested, with the remaining shares scheduled to vest through and including June 15, 2018;
Dr. Barrett held stock options to purchase 30,000 shares of common stock in the aggregate, of which 25,000 shares were vested, with the remaining shares scheduled to vest through and including June 15, 2018;
Dr. FitzGerald held stock options to purchase 35,000 shares of common stock in the aggregate, of which 19,583 shares were vested, with the remaining shares scheduled to vest through and including March 22, 2019;
Ms. van Heek held stock options to purchase 35,000 shares of common stock in the aggregate, of which 17,500 shares were vested, with the remaining shares scheduled to vest through and including June 9, 2019;
Mr. Hutt held stock options to purchase 44,156 shares of common stock in the aggregate, of which 39,156 shares were vested, with the remaining shares scheduled to vest through and including June 15, 2018;
Dr. Jaeger held a stock option to purchase 30,000 shares of common stock, of which 25,000 shares were vested, with the remaining shares scheduled to vest through and including June 15, 2018;
Dr. Wierenga held a stock option to purchase 58,538 shares of common stock, of which 53,538 shares were vested, with the remaining shares scheduled to vest through and including June 15, 2018.

Compensation Committee Interlocks and Insider Participation

During 2017, the members of our compensation committee were Dr. Barrett, Mr. Aldrich and Dr. FitzGerald. None of our executive officers serves, or in the past has served, as a member of the board of directors or compensation committee, or other committee serving an equivalent function, of any entity that has one or more executive officers who serve as members of our board of directors or our compensation committee. None of the members of our compensation committee is an officer or employee of our company, nor have they ever been an officer or employee of our Company.


Compensation Committee Report

The information contained in this report shall not be deemed to be (1) “soliciting material,” (2) “filed” with the SEC, (3) subject to Regulations 14A or 14C of the Exchange Act, or (4) subject to the liabilities of Section 18 of the Exchange Act. This report shall not be deemed incorporatedrequired by reference into any of our other filings under the Exchange Act or the Securities Act, except to the extent that we specifically incorporate it by reference into such filing.

The compensation committee reviewed and discussed the disclosure included in the Executive Compensation section of this Annual Report on Form 10-K with management. Based on the review and discussions, the compensation committee recommended to the Board of Directors that the disclosure included in the Executive Compensation sectionItem 11 will be included in thisour definitive proxy statement relating to our 2022 Annual Report on Form 10-K for the year endedMeeting of Stockholders, to be filed no later than 120 days after December 31, 2017, for filing with the SEC.2021, and is incorporated herein by reference.

The Compensation Committee members

Ronald W. Barrett, Ph.D. (Chair)
Richard H. Aldrich
Meghan FitzGerald, Ph.D.

Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters
The following table sets forth information required by Item 12 will be included in our definitive proxy statement relating to the extent known by us or ascertainable from public filings, with respectour 2022 Annual Meeting of Stockholders, to the beneficial ownership of our common stock as of January 31, 2018 by:
each of our directors and our director nominees;
each of our named executive officers;
all of our directors, our director nominees and executive officers as a group; and
each person, or group of affiliated persons, who is known by us to beneficially own more than 5% of our common stock.
Beneficial ownership is determined in accordance with the rules and regulations of the SEC. These rules generally attribute beneficial ownership of securities to persons who possess sole or shared voting power or investment power with respect to those securities and include shares of common stock issuable upon the exercise of stock options that are immediately exercisable or exercisable within 60be filed no later than 120 days after JanuaryDecember 31, 2018. Except as otherwise indicated, all of the shares reflected in the table are shares of common stock2021, and all persons listed below have sole voting and investment power with respect to the shares beneficially ownedis incorporated herein by them, subject to community property laws, where applicable. The information is not necessarily indicative of beneficial ownership for any other purpose.reference.
The percentage ownership calculations for beneficial ownership are based on 23,226,702 shares of common stock outstanding as of January 31, 2018. Except as otherwise indicated in the table below, addresses of named beneficial owners are in care of Concert Pharmaceuticals, Inc., 99 Hayden Avenue, Suite 500, Lexington, Massachusetts 02421.
In computing the number of shares of common stock beneficially owned by a person and the percentage ownership of that person, we deemed outstanding shares of common stock subject to options held by that person that are currently exercisable or exercisable within 60 days after January 31, 2018. We did not deem these shares outstanding, however, for the purpose of computing the percentage ownership of any other person.


Name of beneficial owner Number of
shares
beneficially
owned
 Percentage
of shares
beneficially
owned
5% Stockholders    
Entities affiliated with BVF, Inc.(1)
 1,969,789
 8.5%
Entities affiliated with BlackRock Inc.(2)
 1,786,223
 7.7%
Ingalls & Snyder LLC (3)
 1,332,662
 5.7%
Entities affiliated with GlaxoSmithKline (4)
 1,179,941
 5.1%
   
Executive Officers and Directors    
Roger D. Tung, Ph.D.(5)
 1,151,061
 5.0%
James V. Cassella, Ph.D.(6)
 147,500
 *
Nancy Stuart (7)
 309,916
 1.3%
Richard H. Aldrich (8)
 358,826
 1.5%
Thomas G. Auchincloss (9)
 54,500
 *
Ronald W. Barrett, Ph.D.(10)
 27,500
 *
Meghan FitzGerald, Ph.D. (11)
 24,167
 *
Christine van Heek (12)
 22,083
 *
Peter Barton Hutt, LL.M (13)
 46,080
 *
Wilfred E. Jaeger, M.D.(14)
 27,500
 *
Wendell Wierenga, Ph.D.(15)
 67,677
 *
All current executive officers and directors as a group (13 persons) (16)
 2,294,185
 9.4%
*Represents beneficial ownership of less than 1% of our outstanding stock.
(1)
Based on information set forth in a Form 4 filed with the Securities and Exchange Commission on December 21, 2017 by the following entities and individual. Consists of (i) 951,300 shares of common stock beneficially owned by Biotechnology Value Fund, L.P. (“BVF”), (ii) 632,642 shares of common stock beneficially owned by Biotechnology Value Fund II, L.P (“BVF2”) and (iii) 122,496 shares of common stock beneficially owned by Biotechnology Value Trading Fund OS LP (“Trading Fund OS”). BVF Partners OS Ltd. (“Partners OS”) as the general partner of Trading Fund OS may be deemed to beneficially own the 122,496 shares of Common Stock beneficially owned by Trading Fund OS. BVF Partners L.P. (“Partners”), as the general partner of BVF, BVF2, the investment manager of Trading Fund OS, and the sole member of Partners OS, may be deemed to beneficially own the 1,969,789 shares of Common Stock beneficially owned in the aggregate by BVF, BVF2, Trading Fund OS, and certain Partners management accounts (the “Partners Management Accounts”), including 263,351 shares of Common Stock held in the Partners Managed Accounts. BVF Inc., as the investment adviser and general partner of Partners, may be deemed to beneficially own the 1,706,438 shares of Common Stock beneficially owned by Partners. Mr. Lampert, as a director and officer of BVF Inc., may be deemed to beneficially own the 1,706,438 shares of Common Stock beneficially owned by BVF Inc. Partners OS disclaims beneficial ownership of the shares of Common Stock beneficially owned by Trading Fund OS. Each of Partners, BVF Inc. and Mr. Lampert disclaims beneficial ownership of the shares of Common Stock beneficially owned by BVF, BVF2, Trading Fund OS, and the Partners Management Accounts. The address for Trading Fund OS and Partners OS is PO Box 309 Ugland House, Grand Cayman, KY1-1104 Cayman Islands and the address for each of the other entities and for Mr. Lampert is 1 Sansome Street, 30th Floor, San Francisco, California 94104.
(2)Based on information set forth in a Schedule 13G filed with the Securities and Exchange Commission on February 1, 2018 by BlackRock, Inc. Consists of 1,786,223 shares of common stock beneficially owned by BlackRock, Inc. The address for BlackRock, Inc. is 55 East 52nd Street, New York, NY, 10055.
(3)Based on information set forth in a Schedule 13G filed with the Securities and Exchange Commission on February 9, 2018 by Ingalls & Snyder LLC. Consists of 1,322,662 shares of common stock beneficially owned by Ingalls & Snyder LLC. The address for Ingalls & Snyder LLC is 1325 Avenue of the Americas, New York, NY, 10019.
(4)
Based on information set forth in a Schedule 13G filed with the Securities and Exchange Commission on February 13, 2018 by GlaxoSmithKline plc. Consists of 1,179,941 shares of common stock held by Glaxo Group Limited, a wholly owned subsidiary of GlaxoSmithKline plc. The address of these entities is 980 Great West Road, Brentford, Middlesex, United Kingdom TW8 9GS.


(5)In addition to shares of common stock held directly, includes 121,873 shares of common stock held by the Roger D. Tung 2011 GRAT, for which Dr. Tung is the sole trustee, 12,389 shares of common stock held by the RD Tung Irrevocable Trust, for which Dr. Tung’s wife is a co-trustee, and 13,274 shares of common stock held by the Tung Family Investment Trust, for which Dr. Tung is a co-trustee. Includes 460,427 shares of common stock issuable upon the exercise of options exercisable within 60 days after January 31, 2018.
(6)Consists of 147,500 shares of common stock issuable upon exercise of options exercisable within 60 days after January 31, 2018.
(7)In addition to shares of common stock held directly, includes 229,122 shares of common stock issuable upon the exercise of options exercisable within 60 days after January 31, 2018.
(8)In addition to shares of common stock held directly, includes 44,351 shares of common stock held by the Little Eagles, LLC, of which the owners of Little Eagles, LLC are Richard H. Aldrich Irrevocable Trust of 2011 and trusts established for the benefit of the Mr. Aldrich's minor children. The trustees of Richard H. Aldrich Irrevocable Trust of 2011 are Mr. Aldrich's spouse, Nichole A. Aldrich, and Mr. Aldrich's brother, Caleb F. Aldrich. The beneficiaries of Richard H. Aldrich Irrevocable Trust of 2011 are Mr. Aldrich's minor children. Mr. Aldrich disclaims beneficial ownership of such shares except to the extent of any pecuniary interest therein. Includes 27,500 shares of common stock issuable upon the exercise of options exercisable within 60 days after January 31, 2018.
(9)In addition to shares of common stock held directly, includes 52,500 shares of common stock issuable upon the exercise of options exercisable within 60 days after January 31, 2018.
(10)Consists of 27,500 shares of common stock issuable upon the exercise of options exercisable within 60 days after January 31, 2018.
(11)Consists of 24,167 shares of common stock issuable upon the exercise of options exercisable within 60 days after January 31, 2018.
(12)Consists of 22,083 shares of common stock issuable upon the exercise of options exercisable within 60 days after January 31, 2018.
(13)In addition to shares held directly, includes 41,656 shares of common stock issuable upon the exercise of options exercisable within 60 days after January 31, 2018.
(14)Consists of 27,500 shares of common stock issuable upon the exercise of options exercisable within 60 days after January 31, 2018.
(15)In addition to shares held directly, includes 56,038 shares of common stock issuable upon the exercise of options exercisable within 60 days after January 31, 2018.
(16)Includes 1,173,368 shares of common stock issuable upon the exercise of options exercisable within 60 days after January 31, 2018.
Item 13. Certain Relationships and Related Transactions, and Director Independence

Policies and Procedures for Related Person Transactions
Our BoardThe information required by Item 13 will be included in our definitive proxy statement relating to our 2022 Annual Meeting of Directors has adopted a written related person transaction policy to set forth policies and procedures for the review and approval or ratification of related person transactions. This policy covers any transaction, arrangement or relationship, or any series of similar transactions, arrangements or relationships, in which we were or areStockholders, to be a participant, the amount involved exceeds $120,000,filed no later than 120 days after December 31, 2021, and a related person had or will have a direct or indirect material interest, including, without limitation, purchases of goods or servicesis incorporated herein by or from the related person or entities in which the related person has a material interest, indebtedness, guarantees of indebtedness and employment by us of a related person.reference.
Our related person transaction policy contains exceptions for any transaction or interest that is not considered a related person transaction under SEC rules as in effect from time to time. In addition, the policy provides that an interest arising solely from a related person’s position as an executive officer of another entity that is a participant in a transaction with us will not be subject to the policy if each of the following conditions is met:
the related person and all other related persons own in the aggregate less than a 10% equity interest in such entity;
the related person and his or her immediate family members are not involved in the negotiation of the terms of the transaction with us and do not receive any special benefits as a result of the transaction; and
the amount involved in the transaction equals less than the greater of $200,000 or 5% of the annual gross revenue of the company receiving payment under the transaction.


The policy provides that any related person transaction proposed to be entered into by us must be reported to our General Counsel and will be reviewed and approved by our audit committee in accordance with the terms of the policy, prior to effectiveness or consummation of the transaction whenever practicable. The policy provides that if our chief financial officer determines that advance approval of a related person transaction is not practicable under the circumstances, our audit committee will review and, in its discretion, may ratify the related person transaction at the next meeting of the audit committee. The policy also provides that alternatively, our chief financial officer may present a related person transaction arising in the time period between meetings of the audit committee to the chair of the audit committee, who will review and may approve the related person transaction, subject to ratification by the audit committee at the next meeting of the audit committee.
In addition, the policy provides that any related person transaction previously approved by the audit committee or otherwise already existing that is ongoing in nature will be reviewed by the audit committee annually to ensure that such related person transaction has been conducted in accordance with the previous approval granted by the audit committee, if any, and that all required disclosures regarding the related person transaction are made.
The policy provides that transactions involving compensation of executive officers will be reviewed and approved by our compensation committee in the manner to be specified in the charter of the compensation committee.
A related person transaction reviewed under this policy will be considered approved or ratified if it is authorized by the audit committee in accordance with the standards set forth in the policy after full disclosure of the related person’s interests in the transaction. As appropriate for the circumstances, the policy provides that the audit committee will review and consider:
the related person’s interest in the related person transaction;
the approximate dollar value of the amount involved in the related person transaction;
the approximate dollar value of the amount of the related person’s interest in the transaction without regard to the amount of any profit or loss;
whether the transaction was undertaken in the ordinary course of business of our company;
whether the transaction with the related person is proposed to be, or was, entered into on terms no less favorable to us than the terms that could have been reached with an unrelated third party;
the purpose of, and the potential benefits to us of, the transaction; and
any other information regarding the related person transaction or the related person in the context of the proposed transaction that would be material to investors in light of the circumstances of the particular transaction.
The policy provides that the audit committee will review all relevant information available to it about the related person transaction. The policy provides that the audit committee may approve or ratify the related person transaction only if the audit committee determines that, under all of the circumstances, the transaction is in, or is not inconsistent with, our best interests. The policy provides that the audit committee may, in its sole discretion, impose such conditions as it deems appropriate on us or the related person in connection with approval of the related person transaction.
No related person transactions were brought to the attention of the audit committee for consideration in 2017.



Item 14. Principal Accountant Fees and Services
The following table summarizes the fees Ernst & Young LLP,information required by Item 14 will be included in our independent registered public accounting firm, billeddefinitive proxy statement relating to us for eachour 2022 Annual Meeting of the last two fiscal years.


Fee Category 2017 2016
Audit Fees (1)
 $569,713
 $423,535
Audit-Related Fees 
 
Tax Fees (2)
 48,450
 37,960
All Other Fees (3)
 2,000
 2,000
Total Fees $620,163
 $463,495
(1)Audit fees for 2017 and 2016 consist of fees for the audit of our consolidated financial statements and the review of our interim financial statements.
(2)
Tax fees consists of fees incurred for tax compliance and tax return preparation.Tax fees for 2017 and 2016 also include fees incurred in connection with preparation of an ownership analysis pursuant to Section 382 of the Internal Revenue Code to quantify any limitations on the availability of net operating loss carryforwards to offset taxable income.
(3)
All Other Fees represents payment for access to the Ernst & Young LLP online accounting research database.

Pre-approval Policy and Procedures
The audit committee of our Board of Directors has adopted policies and procedures for the pre-approval of audit and non-audit services for the purpose of maintaining the independence of our independent auditor. We may not engage our independent auditor to render any audit or non-audit service unless either the service is approved in advance by the audit committee, or the engagement to render the service is entered into pursuant to the audit committee’s pre-approval policies and procedures. Notwithstanding the foregoing, pre-approval is not required with respect to the provision of services, other than audit, review or attest services, by the independent auditor if the aggregate amount of all such services is no more than 5% of the total amount paid by us to the independent auditor during the fiscal year in which the services are provided, such services were not recognized by us at the time of the engagementStockholders, to be non-audit servicesfiled no later than 120 days after December 31, 2021, and such services are promptly brought to the attention of the audit committee and approved prior to completion of the auditis incorporated herein by the audit committee.reference.
From time to time, our audit committee may pre-approve services that are expected to be provided to us by the independent auditor during the following 12 months. At the time such pre-approval is granted, the audit committee must identify the particular pre-approved services in a sufficient level of detail so that our management will not be called upon to make a judgment as to whether a proposed service fits within the pre-approved services and, at each regularly scheduled meeting of the audit committee following such approval, management or the independent auditor shall report to the audit committee regarding each service actually provided to us pursuant to such pre-approval.
During our 2017 and 2016 fiscal years, no services were provided to us by Ernst & Young LLP or any other accounting firm other than in accordance with the pre-approval policies and procedures described above.


Part IV
Item 15.Exhibits and Financial Statement Schedules
(1)Financial Statements
(1)Financial Statements
Our consolidated financial statements are set forth in Part II, Item 88. of this Annual Report on Form 10-K and are incorporated herein by reference.
(2)Financial Statement Schedules
(2)Financial Statement Schedules
Schedules have been omitted since they are either not required or not applicable or the information is otherwise included herein.
(3)Exhibits
The exhibits
104


3.4
3.5
4.1
4.2
4.3
4.4
4.5 *
10.1 #
10.2 #
10.3 #
10.4 #
10.5 #
10.6 #
10.7 #
10.8 #
10.9 #
10.10 #
10.11 #
10.12 #*
105


10.13
10.14 †
10.15
10.16
10.17
10.18 †*
21.1 *
23.1 *
31.1 *
31.2 *
32.1 **
32.2 **
101.INS *XBRL Instance Document
101.SCH *XBRL Taxonomy Extension Schema Document
101.CAL *XBRL Taxonomy Extension Calculation Linkbase Document
101.DEF *XBRL Taxonomy Extension Definition Linkbase Document
101.LAB *XBRL Taxonomy Extension Label Linkbase Document
101.PRE *XBRL Taxonomy Extension Presentation Linkbase Document
* Filed herewith.
** Furnished herewith.
# Management contract or compensatory plan or arrangement.
† Confidential treatment requested as to certain portions, which portions have been omitted and filed as part of this Annual Report on Form 10-K are listed below.

separately with the
106


Securities and Exchange Commission
Item 16.Form 10-K Summary
Not applicable.




107
Exhibit Index
Exhibit
number
Description
3.1
3.2
3.3
4.1
10.1
10.2
10.3 #
10.4 #
10.5 #
10.6 #
10.7 #
10.8 #
10.9 #*
10.10*










Exhibit
number
Description
10.11 #
10.12
10.13 #
10.14
10.15
10.16 †
10.17 †
10.18 †
10.19 †
10.20 †
10.21 #
10.22 #*
21.1*
23.1*
31.1*


31.2*
32.1**
32.2**
101.INS*XBRL Instance Document
101.SCH*XBRL Taxonomy Extension Schema Document
101.CAL*XBRL Taxonomy Extension Calculation Linkbase Document
101.DEF*XBRL Taxonomy Extension Definition Linkbase Document
101.LAB*XBRL Taxonomy Extension Label Linkbase Document
101.PRE*XBRL Taxonomy Extension Presentation Linkbase Document
*Filed herewith.
**Furnished herewith.
Confidential treatment requested as to certain portions, which portions have been omitted and filed separately with the Securities and Exchange Commission.
#Management contracts or compensatory plans or arrangements required to be filed as an exhibit hereto pursuant to Item 15(a) of Form 10-K.

SIGNATURES
Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized, on March 1, 2018.
3, 2022.
CONCERT PHARMACEUTICALS, INC.
By:
CONCERT PHARMACEUTICALS, INC.
By:/s/ Roger D. Tung, Ph.D.
Roger D. Tung, Ph.D.
President and Chief Executive Officer
Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated:indicated.



SignatureTitleDate
SignatureTitleDate
/s/ Roger D. Tung, Ph.D.Director, President, and Chief Executive Officer and Director (Principal Executive Officer)March 1, 20183, 2022
Roger D. Tung, Ph.D.
/s/ Marc A. BeckerChief Financial Officer (Principal Financial and Accounting Officer)March 1, 20183, 2022
Marc A. Becker
/s/ Ryan LynchCorporate Controller (Principal Accounting Officer)March 1, 2018
Ryan Lynch
/s/ Richard H. Aldrich
Chairman of the Board
 
March 1, 20183, 2022
Richard H. Aldrich
/s/ Thomas G. Auchincloss, Jr.
Director
 
March 1, 20183, 2022
Thomas G. Auchincloss, Jr.
/s/ Ronald W. Barrett, Ph.D.
Director
 
March 1, 20183, 2022
Ronald W. Barrett, Ph.D.
/s/ Meghan FitzGeraldJesper Høiland
Director
 
March 1, 20183, 2022
Meghan FitzGerald, Ph.D.Jesper Høiland
/s/ Christine van HeekPeter Barton Hutt
Director
 
March 1, 20183, 2022
Christine van Heek
/s/ Peter Barton Hutt
/s/ Wilfred E. Jaeger, M.D.
Director
 
March 1, 20183, 2022
Peter Barton Hutt
/s/ Wilfred E. Jaeger, M.D.
/s/ Christine van Heek
Director
 
March 1, 20183, 2022
Wilfred E. Jaeger, M.D.Christine van Heek
/s/ Wendell Wierenga
Director
March 1, 2018
Wendell Wierenga, Ph.D.


126
108