Description of Business and Summary of Significant Accounting Policies | 1. Description of Business and Summary of Significant Accounting Policies Chiasma, Inc. is a commercial-stage biopharmaceutical company incorporated in 2001 under the laws of the State of Delaware. Chiasma, Inc. is headquartered in Massachusetts and has two wholly owned subsidiaries; Chiasma (Israel) Ltd., and Chiasma Securities Corp, collectively referred to as “the Company,” “we,” “us,” “our” or “Chiasma”. We are focused on developing and commercializing oral therapies to improve the lives of patients who face challenges associated with their existing treatments for rare and serious chronic disease. Employing our proprietary Transient Permeability Enhancer (“TPE”) technology platform, we seek to develop oral medications that are currently available only as injections. On June 26, 2020, we received approval from the U.S. Food and Drug Administration (“FDA”) of our oral octreotide capsules product candidate, MYCAPSSA, for long-term maintenance treatment in acromegaly patients who have responded to and tolerated treatment with octreotide or lanreotide. We commenced our U.S. commercial launch of MYCAPSSA in September 2020. Acromegaly is a rare and debilitating condition that results in the body’s production of excess growth hormone. Octreotide is an analog of somatostatin, a natural inhibitor of growth hormone secretion. Octreotide capsules have been granted orphan designation in the United States and the European Union for the treatment of acromegaly. We retain worldwide rights to develop and commercialize octreotide capsules. We conducted an international Phase 3 clinical trial, referred to as MPOWERED, of oral octreotide capsules for the maintenance treatment of adult patients with acromegaly to support regulatory approval in the European Union by the European Medicines Agency (“EMA”). The MPOWERED trial was a global, randomized, open-label and active-controlled 15-month trial initially designed to enroll up to 150 patients. The EMA requested that a minimum of 80 patients who are responders to octreotide capsules per the protocol following the six-month On May 4, 2021, we entered into an agreement with Amryt Pharma plc (“Amryt”), pursuant to which, if all of the conditions to closing are satisfied or waived, we will become a wholly-owned subsidiary of Amryt (“the Merger Agreement” and such transaction, “the Merger”). The Merger Agreement was approved by our board of directors (the “Board”), and the Board resolved to recommend approval of the Merger Agreement to our shareholders. The closing of the Merger is subject to approval of our shareholders and the satisfaction of customary closing conditions. In connection with the execution of the Merger Agreement, our largest stockholder, who owns approximately 10% of the outstanding shares of our common stock has entered into a voting and transaction support agreement with Amryt, pursuant to which it has agreed, among other things, and subject to the terms and conditions of the agreements, to vote in favor of the Merger. Subject to the terms of the Merger Agreement, at the effective time of the Merger (the “Effective Time”), each share of our common stock issued and outstanding immediately prior to the Effective Time shall automatically be canceled and converted (without interest but subject to any withholding required under applicable law) into the right to receive 0.396 of an American Depositary Share of Amryt, or Parent ADS, with each Parent ADS representing five ordinary shares of Amryt. Subject to approval by our shareholders and the shareholders of Amryt, the transaction is expected to close in the third quarter of 2021. We have incurred substantial operating losses since inception, and we expect our operating losses and negative operating cash flows to continue for the foreseeable future. We are heavily dependent on the commercial success of MYCAPSSA in the United States and the regulatory approval and subsequent commercial success of MYCAPSSA in the European Union, both of which may never occur. We plan to invest in our U.S. commercial launch and the manufacturing of octreotide capsules for market consumption including manufacturing scale-up activities, and transitioning the open label extension portions of both our international Phase 3 CHIASMA OPTIMAL clinical trial of octreotide capsules in acromegaly and our international Phase 3 MPOWERED clinical trial of octreotide capsules in acromegaly for patients outside of the United States to an Expanded Access Program, where applicable, as well as continue the MACRO Registry. In addition, we plan to prepare and submit a MAA to the EMA seeking potential regulatory approval of octreotide capsules as a treatment for acromegaly in the European Union. We expect our existing cash, cash equivalents and marketable securities to fund our operations for at least one year after the date these condensed consolidated financial statements are issued. Successful transition to attaining profitable operations is dependent upon achieving a level of revenues adequate to support our cost structure. We plan to continue to fund our losses from operations and capital funding needs from existing balances of cash, cash equivalents and marketable securities and potentially through additional equity financings. We may also opportunistically consider license and collaboration agreements or other strategic transactions with potential partners or financing opportunities to the extent such sources are identified and available. If our anticipated U.S. revenues are insufficient to fund our operations to attaining and sustaining profitability, additional financing may be required. Such financing, if required, may not be available on a timely basis on terms acceptable to us, or at all. If we are not able to secure adequate additional funding when required, we may be forced to make reductions in spending, extend payment terms with suppliers, suspend or curtail our commercialization and development activities, or it may negatively impact our ability to adequately fund or delay our potential commercial preparations or launch readiness outside the United States if our planned MAA for MYCAPSSA is approved by the EMA. Any of these actions could materially harm our business, results of operations and future prospects. Failure to successfully commercialize octreotide capsules in acromegaly will prevent us from achieving profitability and positive cash flows, which could raise significant concerns about our continued viability as a business. Basis of Presentation We have prepared the accompanying unaudited condensed consolidated financial statements pursuant to the rules and regulations of the SEC regarding interim financial reporting. Accordingly, certain information and footnote disclosures required by accounting principles generally accepted in the United States (“U.S. GAAP”) for annual financial statements have been condensed or omitted. The information included in this quarterly report on Form 10-Q should be read in conjunction with our Annual Report on Form 10-K for the year ended December 31, 2020. The year-end condensed consolidated balance sheet data presented for comparative purposes was derived from our audited financial statements but does not include all disclosures required by U.S. GAAP. In the opinion of management, we have prepared the accompanying unaudited condensed consolidated financial statements on the same basis as our audited financial statements, and these financial statements include all adjustments, consisting only of normal recurring adjustments, necessary for a fair presentation of the results of the interim periods presented. Interim results are not necessarily indicative of results for a full year or for any other subsequent interim period. Cash Equivalents Cash equivalents consist of highly liquid instruments that mature within three months or less from the date of purchase. Marketable Securities Our investments primarily consist of commercial paper and corporate and government debt securities. These marketable securities are classified as available-for-sale, and as such, are reported at fair value on our condensed consolidated balance sheets. Unrealized holding gains and losses are reported within accumulated other comprehensive income (loss) as a separate component of stockholders’ equity. The amortized cost of debt securities is adjusted for amortization of premiums and accretion of discounts to maturity. Such amortization, together with interest on securities, are included in interest and other income, net, on our condensed consolidated statements of operations. If a decline in the fair value of a marketable security below our cost basis is determined to be other than temporary, such marketable security is written down to its estimated fair value as a new cost basis and the amount of the write-down is included in earnings as an impairment charge. The cost of securities sold is based on the specific identification method. Accounts Receivable Our accounts receivable consist of amounts due from our customers for sales of MYCAPSSA and which have standard payments terms. We extend credit to our customers based on our evaluation of their financial condition. Accounts receivable are stated at amounts due net of applicable prompt pay discounts and other adjustments. We assess the need for an allowance for doubtful accounts by considering a number of factors, including the length of time trade accounts receivable are past due and the customer’s ability to pay its obligation. Based on a review of these factors, as of March 31, 2021, we determined that an allowance for doubtful accounts was not required. Concentrations of credit risk Financial instruments that potentially subject us to significant concentration of credit risk consist primarily of cash, cash equivalents and marketable securities, and accounts receivable. During the three months ended March 31, 2021, one customer comprised greater than 90% of our accounts receivable and product revenues. We routinely maintain deposits in financial institutions in excess of government insured limits. Management believes that we are not exposed to significant credit risk as our deposits are held at financial institutions that management believes to be of high credit quality and we have not experienced any significant losses in these deposits. We regularly invest excess operating cash in deposits with major financial institutions and money market funds and in notes issued by the U.S. government, as well as in fixed income investments and U.S. bond funds, both of which can be readily purchased and sold using established markets. We believe that the market risk arising from our holdings of these financial instruments is mitigated based on the fact that many of these securities are either government backed or of high credit rating. Inventory Prior to FDA approval of MYCAPSSA, all costs related to the manufacturing of MYCAPSSA that could potentially be available to support the planned U.S. commercial launch were charged to research and development expense in the period incurred. Generally, inventory may be capitalized if it is probable that future revenues will be generated from the sale of the inventory and that these revenues will exceed the cost of the inventory. Through the FDA approval date of MYCAPSSA, we expensed all of our manufacturing costs due to the high risk inherent in drug development and uncertainty as to whether MYCAPSSA would be approved. We began to capitalize our manufacturing-related costs to inventory starting July 1, 2020. We capitalize the costs to manufacture our products incurred after regulatory approval when, based on our judgment, future commercialization is considered probable and the future economic benefit is expected to be realized. In connection therewith, we value our inventories at the lower of cost or estimated net realizable value. We determine the cost of our inventories, which includes amounts related to active pharmaceutical ingredient (“API”), and other raw materials, third party manufacturing costs and other overhead costs On a quarterly basis, we review inventory quantities on hand and analyze the provision for excess and obsolete inventory based primarily on remaining product shelf life and our estimated sales forecast which is based on anticipated future demand. We build demand forecasts by considering factors such as, but not limited to, overall market potential, market share, market acceptance, and patient usage. Our estimates of future product demand may prove to be imprecise and changes in estimates will result in a change to the provision required for excess and obsolete inventory. Accordingly, any significant unanticipated changes in demand could have a significant impact on the value of our inventory and results of operations. Deferred Royalty Obligation We treat the deferred royalty obligation, as discussed further in Note 7, as a debt obligation, amortized under the effective interest rate method over the estimated life of the agreement. We recognize interest expense thereon using the effective rate, which is based on our current estimates of future revenues over the life of the arrangement. In connection therewith, we periodically assess our expected revenues using internal projections, impute interest on the carrying value of the deferred royalty obligation, and record interest expense using the effective interest rate. To the extent our estimates of future revenues are greater or less than previous estimates or the estimated timing of such payments is materially different than previous estimates, we will account for any such changes by adjusting the effective interest rate on a prospective basis, with a corresponding impact to the reclassification of our deferred royalty obligation between short- and long-term. The assumptions used in determining the expected repayment term of the deferred royalty obligation and amortization period of the issuance costs requires that we make estimates that could impact the short-term and long-term classification of such costs, as well as the period over which such costs will be amortized. Revenue Recognition In accordance with accounting guidance for revenue recognition, we recognize revenue when a customer obtains control of promised goods or services, in an amount that reflects the consideration which we expect to receive in exchange for those goods or services. To determine revenue recognition for arrangements that we determine to be within the scope of such guidance, we perform the following five 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. We only apply the five-step model to contracts when it is probable that we will collect the consideration we are entitled to in exchange for the goods or services that we transfer to the customer. For a further discussion of accounting for net product revenue see Note 2. Use of Estimates The preparation of condensed consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the condensed consolidated financial statements and accompanying notes during the reporting period. We base these estimates and assumptions on historical experience when available, and on various factors that we believe to be reasonable under the specific circumstances. Significant estimates relied upon in preparing the accompanying condensed consolidated financial statements include, but are not limited to, recognition of product revenues, accounting for stock-based compensation, income taxes, the fair value of embedded derivatives and our deferred royalty obligation and accounting for certain accruals and reserves. We assess the above estimates on an ongoing basis; however, actual results could materially differ from those estimates. |