Description of Business and Summary of Significant Accounting Policies | 1. Description of Business and Summary of Significant Accounting Policies Chiasma, Inc. is a 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”. Our product development facilities are in Israel. We are dedicated to improving the lives of patients suffering from orphan diseases by developing and commercializing novel oral therapies that are currently available only as injections. We have completed a multinational Phase 3 clinical trial of our most advanced Transient Permeability Enhancer (“TPE”) platform-based product candidate, octreotide capsules, for the treatment of acromegaly and our New Drug Application (“NDA”) was accepted for filing by the United States Food and Drug Administration (“FDA”) in August 2015. We expect to continue to conduct the international Phase 3 clinical trial of octreotide capsules in acromegaly that we initiated in March 2016 to support potential regulatory approval in Europe. On the Prescription Drug User Fee Act (“PDUFA”) date of April 15, 2016, the FDA issued a Complete Response Letter (“CRL”) regarding the NDA, indicating that the review is complete and the NDA is not ready for approval in its present form. In June 2016, we participated in an End of Review meeting with the FDA to discuss the concerns the FDA raised in the CRL and have received the minutes of the meeting. In its CRL, the FDA advised us that it did not believe our application had provided substantial evidence of efficacy to warrant approval, and advised us that we would need to conduct another clinical trial in order to overcome this deficiency. The FDA expressed concerns regarding certain aspects of our single-arm, open-label Phase 3 clinical trial and strongly recommended that we conduct a randomized, double-blind and controlled trial that enrolls patients from the United States and is of sufficiently long duration to ensure that control of disease activity is stable at the time point selected for the primary efficacy assessment. In addition, the FDA advised that, during a recent site inspection, certain deficiencies were conveyed to the representative of one of our suppliers that would need to be resolved before approval. In the End of Review meeting minutes, the FDA reiterated its strong recommendation for a randomized, double-blind and controlled trial, and introduced the concept of a placebo control as a design element that could address some of the FDA’s concerns. While we acknowledge this feedback, we continue to explore various potential paths forward, including a determination as to whether we can produce data sufficient to satisfy the FDA of the efficacy and safety of Mycapssa in adult patients with acromegaly. The FDA stated that it considers pathways alternative to its recommendations to be less ideal and ultimately more risky to our efforts to secure approval of our NDA for octreotide capsules in acromegaly. The FDA strongly recommended that we work with the FDA to reach a common understanding of expectations prior to initiating and executing any alternative plans. The U.S. regulatory pathway is highly uncertain at this time, and we may never reach a common understanding with the FDA on a path forward to develop Mycapssa in the U.S., or obtain regulatory approval of octreotide capsules in the United States. In addition to the regulatory uncertainty created by the CRL, we are also subject to risks common to companies in the biopharmaceutical development industry. There can be no assurance that our research and development will be successfully completed, that adequate protection for our intellectual property will be obtained, that any products developed will obtain required regulatory approval or that any approved products will be commercially viable. Even if our development efforts are successful, it is uncertain when, if ever, we will generate significant product sales. We operate in an environment of rapid technological change and substantial competition from pharmaceutical and biotechnology companies. Liquidity We have incurred significant losses from operations since our inception and expect losses to continue for at least the next several years. We are heavily dependent on the regulatory approval and subsequent commercial success of our lead product candidate, octreotide capsules for the treatment of acromegaly in the United States and Europe, both of which may never occur. We expect to continue to conduct our recently initiated international Phase 3 clinical trial of octreotide capsules in acromegaly to support potential regulatory approval in Europe. In June 2016, we announced a corporate restructuring plan intended to focus our resources on the continued development of Mycapssa for the maintenance treatment of adult acromegaly patients. We are currently revisiting all areas of investment and resources in light of the CRL and our End of Review Meeting with the FDA to potentially enable further reductions of our expenses and extension of our cash runway. We currently expect our existing cash, cash equivalents and marketable securities to fund our operations through at least 2017. As a public company, we will continue to incur costs associated with operating as a public company. Therefore, we expect to continue to incur significant operating losses for the foreseeable future. Successful transition to attaining profitable operations is dependent upon achieving a level of revenues adequate to support our cost structure. As a result of the CRL and our subsequent interactions with the FDA, our ability to generate product revenues has been delayed indefinitely. 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 the issuance of debt and/or equity or through collaborations or license agreements with other companies. Debt or equity financing 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, we may be forced to make further reductions in spending, extend payment terms with suppliers, liquidate assets where possible, or suspend or curtail planned programs. Any of these actions could materially harm our business, results of operations and future prospects. Basis of Presentation We have prepared the accompanying unaudited condensed consolidated financial statements pursuant to the rules and regulations of the U.S. Securities and Exchange Commission (“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, 2015. 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. The results of operations for the three and six months ended June 30, 2016, are not necessarily indicative of the operating results for the full year or for any other subsequent interim period. On July 21, 2015, we completed the sale of 7,319,750 shares of our common stock in our IPO, at a price to the public of $16.00 per share, resulting in net proceeds to us of approximately $106.5 million after deducting underwriting discounts and commissions and offering expenses payable by us. In preparation for the IPO, our board of directors and stockholders approved a 1-for-9.132 reverse stock split (the “Reverse Split”) of our common stock effective June 30, 2015. In connection with the closing of the IPO on July 21, 2015, all of our outstanding redeemable convertible preferred stock automatically converted into 16,403,011 shares of common stock. All previously reported common stock share amounts in the accompanying financial statements and related notes have been retroactively adjusted to reflect the reverse stock split. The significant increase in shares outstanding in July 2015 is expected to impact the year-over-year comparability of our net loss per share calculations throughout 2016. Cash Equivalents Cash and cash equivalents consist of highly liquid instruments purchased with an original maturity of three months or less at the date of purchase. Marketable Securities Our investments primarily consist of commercial paper, 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 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 other expense (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. Concentrations of credit risk Financial instruments that potentially subject us to significant concentration of credit risk consist primarily of cash, cash equivalents, marketable securities and long-term restricted deposits. Periodically, we 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. 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 reported amounts of assets, liabilities, revenue, and expenses, and the disclosure of contingent assets and liabilities as of and during the reporting period. We base these estimates and assumptions on historical experience when available, and on various factors that it believes 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, accounting for stock-based compensation, present value of long-term purchase obligation, income taxes, useful lives of long-lived assets, and accounting for certain accruals. We assess the above estimates on an ongoing basis; however, actual results could materially differ from those estimates. Recently Issued Accounting Pronouncements In August 2014, the FASB issued new guidance which requires management to assess an entity’s ability to continue as a going concern and to provide related disclosures in certain circumstances. The requirements of the standard will be effective for the annual and interim financial statement periods ending after December 15, 2016, with early adoption permitted. We adopted this guidance effective January 2016. The adoption of this standard did not have a material impact on our condensed consolidated financial statements. In November 2015, the FASB issued new guidance which requires all deferred income taxes be presented on the balance sheet as noncurrent. The new guidance is intended to simplify financial reporting by eliminating the requirement to classify deferred taxes between current and noncurrent. The guidance is effective in 2017 with early adoption is permitted. We adopted this guidance effective June 2016. We applied the guidance prospectively and therefore prior periods have not been retrospectively adjusted. At December 31, 2015, our net current deferred tax asset was $0.1 million. The adoption of this standard did not have a material impact on our condensed consolidated financial statements. In February 2016, the FASB issued new guidance which establishes a right-of-use model that requires a lessee to record an asset and a lease liability on the balance sheet for all leases with terms longer than 12 months. Leases will be classified as either finance or operating, with classification affecting the pattern of expense recognition in the income statement. The guidance is effective in 2019. A modified retrospective transition approach is required for lessees for capital and operating leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements. We are currently evaluating the impact the standard may have on our consolidated financial statements. In March 2016, the FASB issued guidance simplifying aspects of the accounting for employee share-based payments, including the accounting for income taxes, forfeitures, statutory withholding requirements, and classification on the statement of cash flows. The standard is effective for interim and annual periods beginning after December 15, 2016, with early adoption permitted. During the three months ended June 30, 2016, we adopted this standard. As a result, we have elected to account for forfeitures as they occur. The adoption of this standard did not have a material impact on our condensed consolidated financial statements. |