• Registrational Ph2b/3 Trial of Zelicapavir to Initiate in High-Risk Adults with RSV in 4Q 2026, with Topline Phase 2b Data Expected in 2027
  • Phase 2b Trial of Zelicapavir to Initiate in Pediatric Patients with RSV in 3Q 2026, with Topline Data Expected in 2027

Enanta Pharmaceuticals, Inc. (NASDAQ:ENTA), a clinical-stage biotechnology company dedicated to creating small molecule drugs for viral infections and immunological diseases, today announced it is advancing zelicapavir into a registrational Phase 2b/3 clinical trial in adults at high risk of severe outcomes from RSV infection after a successful End-of-Phase 2 meeting with the U.S. Food and Drug Administration (FDA). The Phase 2b portion of the trial will confirm the treatment effect with topline data expected in 2027. Enanta also announced plans to initiate a Phase 2b clinical trial of zelicapavir in pediatric patients with RSV, with topline data expected in 2027.