# Regeneron Is Filing for Approval of a Deafness Gene Therapy. Then Comes the Hard Debate. - Date: 2026-04-22 - Category: Biotech & Life Sciences Regeneron is moving toward FDA approval for a gene therapy that restored hearing in all ten patients in a China trial — nine of ten children in its own study. The filing puts cochlear implant debates back on the table, and the durability data is only six months deep. ---