Description of Business and Basis of Preparation	12 Months Ended
Dec. 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of Business and Basis of Preparation	1. Description of Business and Basis of Preparation Organization SCYNEXIS, Inc. ("SCYNEXIS" or the “Company”) is a Delaware corporation formed on November 4, 1999. SCYNEXIS is a biotechnology company, headquartered in Jersey City, New Jersey, and is pioneering innovative medicines to overcome and prevent difficult-to-treat and drug-resistant infections. The Company is developing its proprietary class of enfumafungin-derived antifungal compounds (“fungerps") as broad-spectrum, systemic antifungal agents for multiple fungal indications. Ibrexafungerp is the first representative of this novel class of antifungals with additional assets from the “fungerp” family under development, including SCY-247 which is currently in clinical stages of development. In June 2021, the U.S. Food and Drug Administration (“FDA”) approved BREXAFEMME (ibrexafungerp tablets) for treatment of patients with vulvovaginal candidiasis (“VVC”), also known as vaginal yeast infection, and in December 2022, the Company announced that the FDA approved a second indication for BREXAFEMME for the reduction in the incidence of recurrent vulvovaginal candidiasis ("RVVC"). In March 2023, the Company entered into a license agreement (as amended in December 2023, the "GSK License Agreement") with GlaxoSmithKline Intellectual Property (No. 3) Limited ("GSK") in which the Company granted GSK an exclusive (even as to the Company and its affiliates), royalty-bearing, sublicensable license for the development and commercialization of ibrexafungerp, including the approved product BREXAFEMME, for all indications, in all countries other than Greater China and certain other countries already licensed to third parties. See Note 9 for further details. Following a review in 2023 by GSK of the manufacturing process and equipment at the vendor that manufactures the ibrexafungerp drug substance, the Company became aware that exetimibe, a non-antibacterial beta-lactam drug substance, was manufactured using equipment common to the manufacturing process for ibrexafungerp. Current FDA draft guidance recommends segregating the manufacture of non-antibacterial beta-lactam compounds from other compounds since beta-lactam compounds have the potential to act as sensitizing agents that may trigger hypersensitivity or an allergic reaction in some people. In the absence of the recommended segregation, there is a risk of cross contamination. It is not known whether any ibrexafungerp has been contaminated with a beta-lactam compound and the Company has not received reports of any adverse events due to the possible beta-lactam cross contamination. Nonetheless, out of an abundance of caution and in line with GSK’s recommendation, the Company recalled BREXAFEMME® (ibrexafungerp tablets) from the market and placed a temporary hold on clinical studies of ibrexafungerp, including the Phase 3 MARIO study. The clinical hold and recall affected the Company's Phase 3 MARIO study. The hold did not impact the completed FURI, CARES, VANQUISH and SCYNERGIA clinical studies. The Company's clinical stage compound, SCY-247, is not affected by these developments. The Company is in the process of destroying all of the patient-level and clinical drug product returned to date with the assistance of an experienced vendor and the Company is substantially complete with the product recall. In September 2023, after the Company announced its voluntary clinical hold, the FDA concurred with the Company's voluntary hold and placed a clinical hold. The Company is working on the resolution of this issue and it anticipates the restart of the Phase 3 MARIO study, after the FDA's lifting of the clinical hold, in the second quarter of 2025. The Company had an accumulated deficit of $376.5 million at December 31, 2024. The Company's capital resources primarily comprised cash and cash equivalents and investments of $75.1 million at December 31, 2024. While the Company believes its capital resources are sufficient to fund the Company’s on-going operations for a period of at least 12 months subsequent to the issuance of the accompanying consolidated financial statements, the Company's liquidity could be materially affected over this period by: (1) its ability to raise additional capital through equity offerings, debt financings, or other non-dilutive third-party funding; (2) costs associated with new or existing strategic alliances, or licensing and collaboration arrangements; (3) negative regulatory events or unanticipated costs related to its development of ibrexafungerp and SCY-247; (4) its ability to successfully achieve the development, regulatory, and commercial milestones under its GSK License Agreement; and (5) any other unanticipated material negative events or costs. One or more of these events or costs could materially affect the Company’s liquidity. If the Company is unable to meet its obligations when they become due, the Company may have to delay expenditures, reduce the scope of its research and development programs, or make significant changes to its operating plan. The accompanying consolidated financial statements do not include any adjustments that might result from the outcome of this uncertainty. The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiary. Intercompany balances and transactions are eliminated in consolidation. Use of Estimates The preparation of the consolidated financial statements in conformity with U.S. GAAP requires the Company to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Significant estimates and judgments include: revenue recognition including the identification of performance obligations in licensing arrangements; estimates for the relative standalone selling price and measure of progress under the input method for the GSK License Agreement; estimates for product recall reserves; determination of the fair value of stock-based compensation grants; the estimate of services and effort expended by third-party research and development service providers used to recognize research and development expense; and the estimates and assumptions utilized in measuring the fair value of the outstanding warrants each reporting period.

Description of Business and Basis of Preparation

12 Months Ended

Dec. 31, 2024

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Description of Business and Basis of Preparation

Organization

SCYNEXIS, Inc. ("SCYNEXIS" or the “Company”) is a Delaware corporation formed on November 4, 1999. SCYNEXIS is a biotechnology company, headquartered in Jersey City, New Jersey, and is pioneering innovative medicines to overcome and prevent difficult-to-treat and drug-resistant infections. The Company is developing its proprietary class of enfumafungin-derived antifungal compounds (“fungerps") as broad-spectrum, systemic antifungal agents for multiple fungal indications. Ibrexafungerp is the first representative of this novel class of antifungals with additional assets from the “fungerp” family under development, including SCY-247 which is currently in clinical stages of development. In June 2021, the U.S. Food and Drug Administration (“FDA”) approved BREXAFEMME (ibrexafungerp tablets) for treatment of patients with vulvovaginal candidiasis (“VVC”), also known as vaginal yeast infection, and in December 2022, the Company announced that the FDA approved a second indication for BREXAFEMME for the reduction in the incidence of recurrent vulvovaginal candidiasis ("RVVC").

In March 2023, the Company entered into a license agreement (as amended in December 2023, the "GSK License Agreement") with GlaxoSmithKline Intellectual Property (No. 3) Limited ("GSK") in which the Company granted GSK an exclusive (even as to the Company and its affiliates), royalty-bearing, sublicensable license for the development and commercialization of ibrexafungerp, including the approved product BREXAFEMME, for all indications, in all countries other than Greater China and certain other countries already licensed to third parties. See Note 9 for further details.

Following a review in 2023 by GSK of the manufacturing process and equipment at the vendor that manufactures the ibrexafungerp drug substance, the Company became aware that exetimibe, a non-antibacterial beta-lactam drug substance, was manufactured using equipment common to the manufacturing process for ibrexafungerp. Current FDA draft guidance recommends segregating the manufacture of non-antibacterial beta-lactam compounds from other compounds since beta-lactam compounds have the potential to act as sensitizing agents that may trigger hypersensitivity or an allergic reaction in some people. In the absence of the recommended segregation, there is a risk of cross contamination. It is not known whether any ibrexafungerp has been contaminated with a beta-lactam compound and the Company has not received reports of any adverse events due to the possible beta-lactam cross contamination. Nonetheless, out of an abundance of caution and in line with GSK’s recommendation, the Company recalled BREXAFEMME® (ibrexafungerp tablets) from the market and placed a temporary hold on clinical studies of ibrexafungerp, including the Phase 3 MARIO study.

The clinical hold and recall affected the Company's Phase 3 MARIO study. The hold did not impact the completed FURI, CARES, VANQUISH and SCYNERGIA clinical studies. The Company's clinical stage compound, SCY-247, is not affected by these developments.

The Company is in the process of destroying all of the patient-level and clinical drug product returned to date with the assistance of an experienced vendor and the Company is substantially complete with the product recall. In September 2023, after the Company announced its voluntary clinical hold, the FDA concurred with the Company's voluntary hold and placed a clinical hold. The Company is working on the resolution of this issue and it anticipates the restart of the Phase 3 MARIO study, after the FDA's lifting of the clinical hold, in the second quarter of 2025.

The Company had an accumulated deficit of $376.5 million at December 31, 2024. The Company's capital resources primarily comprised cash and cash equivalents and investments of $75.1 million at December 31, 2024. While the Company believes its capital resources are sufficient to fund the Company’s on-going operations for a period of at least 12 months subsequent to the issuance of the accompanying consolidated financial statements, the Company's liquidity could be materially affected over this period by: (1) its ability to raise additional capital through equity offerings, debt financings, or other non-dilutive third-party funding; (2) costs associated with new or existing strategic alliances, or licensing and collaboration arrangements; (3) negative regulatory events or unanticipated costs related to its development of ibrexafungerp and SCY-247; (4) its ability to successfully achieve the development, regulatory, and commercial milestones under its GSK License Agreement; and (5) any other unanticipated material negative events or costs. One or more of these events or costs could materially affect the Company’s liquidity. If the Company is unable to meet its obligations when they become due, the Company may have to delay expenditures, reduce the scope of its research and development programs, or make significant changes to its operating plan. The accompanying consolidated financial statements do not include any adjustments that might result from the outcome of this uncertainty.

The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiary. Intercompany balances and transactions are eliminated in consolidation.

Use of Estimates

The preparation of the consolidated financial statements in conformity with U.S. GAAP requires the Company to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Significant estimates and judgments include: revenue recognition including the identification of performance obligations in licensing arrangements; estimates for the relative standalone selling price and measure of progress under the input method for the GSK License Agreement; estimates for product recall reserves; determination of the fair value of stock-based compensation grants; the estimate of services and effort expended by third-party research and development service providers used to recognize research and development expense; and the estimates and assumptions utilized in measuring the fair value of the outstanding warrants each reporting period.