Regeneron Heads to FDA Seeking Approval for Game-Changing Hearing Loss Gene Therapy on October 13, 2025 Approved CHORD trial DB-OTO Deafness gene therapy OTOF gene Regeneron United States Food and Drug Administration +
Regeneron gene therapy improves hearing in 10 children with rare form of hearing loss on February 25, 2025 Congenital deafness DB-OTO gene therapy Injection of therapeutic agent otoferlin Regeneron Pharmaceuticals +