SCYNEXIS to Receive $22 Million from GSK as Phase 3 MARIO Study on Invasive Candidiasis Is Terminated

16 October 2025 | Thursday | Regulatory

Resolution with GSK extends SCYNEXIS’s cash runway beyond two years while maintaining collaboration on BREXAFEMME commercialization and advancing next-generation antifungal SCY-247.

  • SCYNEXIS to receive a $22 million payment as part of the resolution related to the restart of the Phase 3 MARIO study on invasive candidiasis
  • Scynexis will promptly wind-down and terminate the MARIO study
  • The payment from GSK, combined with cash in hand and removal of future MARIO expenditures, extends the company’s cash runway to more than two years
  • GSK remains committed to the commercialization of BREXAFEMME (ibrexafungerp tablets)

SCYNEXIS, Inc. (NASDAQ: SCYX), a biotechnology company pioneering innovative medicines to overcome and prevent difficult-to-treat and drug-resistant infections,  announced that it will receive a $22 million payment from GlaxoSmithKline Intellectual Property (No. 3) Limited (GSK) as part of a resolution of the disagreement with GSK related to the restart of the Phase 3 MARIO study on invasive candidiasis. SCYNEXIS will not receive additional milestone payments from GSK associated with the MARIO study. SCYNEXIS will promptly commence appropriate wind-down activities associated with its termination and will receive an additional $2.3M payment in connection with these activities.

GSK has also reiterated its commitment to continued collaboration with SCYNEXIS regarding other aspects of the GSK License Agreement, including with respect to the commercialization of BREXAFEMME (ibrexafungerp tablets) for the vulvovaginal candidiasis (VVC) and refractory vulvovaginal candidiasis (rVVC) indications. SCYNEXIS continues to progress the transfer of the BREXAFEMME NDA to GSK by the end of 2025. GSK anticipates being able to initiate regulatory interactions with the U.S. Food and Drug Administration in 2026 to discuss the relaunch of BREXAFEMME for VVC and rVVC in the U.S. market.

“While disappointed that the MARIO study will not continue, we’re pleased to have resolved this disagreement with GSK and that it remains committed to relaunching BREXAFEMME. SCYNEXIS remains committed to developing novel antifungal solutions, including SCY-247, its second-generation triterpenoid antifungal under development for the treatment and prevention of invasive fungal infections with the potential to provide the therapeutic advantages of both an oral and IV formulation,” said David Angulo, M.D., President and Chief Executive Officer. “We want to thank all of the patients who participated in the MARIO study and the investigators for their continued support toward finding new antifungal agents in areas of significant unmet need.”

 

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