Deafness reversed: One injection restores hearing in just weeks – ScienceDaily (sciencedaily.com)

Karolinska Institutet researchers report that a single round-window injection of AAV gene therapy delivering a working OTOF gene improved hearing in all 10 patients with congenital genetic deafness. Hearing gains often began within about a month and were clearer after six months, with most participants showing improved sound detection. The treatment was generally well-tolerated over 6–12 months, and the team plans longer follow-up to assess how lasting the effects are.