A BioPharmaDive report stated that 10 out of 11 children born profoundly deaf due to rare OTOF gene mutations showed hearing improvement after an experimental gene therapy by Regeneron Pharmaceuticals. Some can hear near-normal speech, like a 10-month-old recognizing "mommy" and "cookies" a year later. One child had no change. The Deaf community has historically resisted the idea of "fixing" deafness. Trials continue despite funding challenges and a small market.

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