JERSEY CITY - SCYNEXIS, Inc. (NASDAQ: SCYX), a biotechnology company delivering innovative therapies for difficult-to-treat and often life-threatening infections, today announced positive results from its second interim efficacy analysis of the ongoing Phase 3 open-label FURI study.

The study is evaluating oral ibrexafungerp as a salvage treatment in patients with difficult-to-treat mucocutaneous and invasive fungal infections that are refractory to or intolerant of current standards of care, or require a non-azole oral step-down therapy for treatment of azole-resistant Candida species. Ibrexafungerp is the first representative of a novel antifungal family, the 'fungerps', being developed for oral and intravenous (IV) usage to treat multiple serious fungal infections, including ones that have shown resistance or have not responded to existing therapies.

A Data Review Committee (DRC) of independent experts assessed the efficacy of oral ibrexafungerp in a second cohort of 21 treated patients from the FURI study. Together with the initial 20 patients reported in January 2019, the dataset consists of 41 patients analyzed to date. Efficacy was consistent across both interim analyses, as oral ibrexafungerp showed clinical benefits in 83% of patients (34 out 41), with 23 patients achieving a complete or partial response and 11 patients a stable disease response. Of the 41 treated patients, only six did not respond to ibrexafungerp treatment and one patient was considered indeterminate.

About Ibrexafungerp

Ibrexafungerp [pronounced eye-BREX-ah-FUN-jerp] is an investigational antifungal agent and the first representative of a novel class of structurally-distinct glucan synthase inhibitors, the 'fungerps'. This agent combines the well-established activity of glucan synthase inhibitors with the potential flexibility of having oral and IV formulations. Ibrexafungerp is currently in development for the treatment of fungal infections caused primarily by Candida (including C. auris) and Aspergillus species. It has demonstrated broad spectrum antifungal activity, in vitro and in vivo, against multidrug-resistant pathogens, including azole- and echinocandin-resistant strains. The FDA has granted Qualified Infectious Disease Product (QIDP) and Fast Track designations for the formulations of ibrexafungerp for the indications of invasive candidiasis (IC) (including candidemia), invasive aspergillosis (IA) and vulvovaginal candidiasis (VVC) and has granted Orphan Drug Designation for the IC and IA indications. Ibrexafungerp is formerly known as SCY-078.

About the FURI Study

The FURI study is a multicenter, open label, non-comparator, single arm study to evaluate the safety and efficacy of ibrexafungerp in patients > 18 years of age with a documented invasive and/or severe mucocutaneous fungal disease that has been intolerant or refractory (rIFI) to SoC antifungal treatment or require a non-azole oral step-down therapy for treatment of azole-resistant Candida species. These infections include: acute and chronic invasive candidiasis, candidemia, and severe mucocutaneous Candida infections, including esophagitis, oropharyngeal and chronic mucocutaneous candidiasis. The FURI study protocol was recently amended to also include patients with aspergillosis, coccidioidomycosis, histoplasmosis, blastomycosis and other emerging, difficult-to-treat fungal infections.

Patients must also have documented evidence of failure of, intolerance to, or toxicity related to a currently approved SoC antifungal treatment. Patients are also considered for enrollment if they have an eligible fungal disease and, in the judgement of the investigator, cannot receive approved oral antifungal options (e.g., susceptibility of the organism or risk for drug-drug interactions) and a continued IV antifungal therapy is not desirable or feasible due to clinical or logistical circumstances.

Enrolled patients receive an initial loading dose of 750mg BID (twice a day) of oral ibrexafungerp during the first two days of treatment with subsequent doses of 750mg QD (once a day) for up to six months. Patients are assessed several times during treatment, with efficacy assessed at end of oral ibrexafungerp therapy. Study subjects are also followed for six weeks after end of treatment.

About SCYNEXIS

SCYNEXIS, Inc. (NASDAQ: SCYX) is a biotechnology company committed to positively impacting the lives of patients suffering from difficult-to-treat and often life-threatening infections by developing innovative therapies. The SCYNEXIS team has extensive experience in the life sciences industry, having discovered and developed more than 30 innovative medicines over a broad range of therapeutic areas. The Company's lead product candidate, ibrexafungerp (formerly known as SCY-078), is a novel IV/oral antifungal agent in Phase 3 clinical and preclinical development for the treatment of multiple serious and life-threatening invasive fungal infections caused by Candida and Aspergillus species.

Forward Looking Statement

Statements contained in this press release regarding expected future events or results are 'forward-looking statements' within the meaning of the Private Securities Litigation Reform Act of 1995. Because such statements are subject to risks and uncertainties, actual results may differ materially from those expressed or implied by such forward-looking statements. These risks and uncertainties include, but are not limited, to: risks inherent in SCYNEXIS's ability to successfully develop and obtain FDA approval for ibrexafungerp; the expected costs of studies and when they might begin or be concluded and SCYNEXIS's reliance on third parties to conduct SCYNEXIS's clinical studies. These and other risks are described more fully in SCYNEXIS's filings with the Securities and Exchange Commission, including without limitation, its most recent Annual Report on Form 10-K under the caption 'Risk Factors' and other documents subsequently filed with or furnished to the Securities and Exchange Commission. All forward-looking statements contained in this press release speak only as of the date on which they were made. SCYNEXIS undertakes no obligation to update such statements to reflect events that occur or circumstances that exist after the date on which they were made.

Contact:

Heather Savelle

Tel: 212-600-1902

Email: heather@argotpartners.com

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