Enanta advances RSV drug zelicapavir into late-stage trials

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Enanta Pharmaceuticals Announces Advancement of its Zelicapavir Clinical Development Program for the Treatment of Respiratory Syncytial Virus (RSV)

June 18, 2026 7:00 AM EDT

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

WATERTOWN, Mass.--(BUSINESS WIRE)-- Enanta Pharmaceuticals, Inc. (NASDAQ:... More