U.S. FDA approves first-ever gene therapy for inherited deafness, free to patients
Gene therapy can now restore hearing to children born deaf — and Regeneron is giving it away free to U.S. families.
In a trial of 20 children with rare OTOF mutations, 16 gained meaningful hearing within six months, and five regained normal hearing, including the ability to hear whispers. Instead of charging the millions per child that’s common for rare-disease therapies, Regeneron chose a different path. Beyond the families it directly helps, the decision hints at a quietly radical idea: that breakthrough medicine for rare conditions doesn’t have to come with a breathtaking price tag. Called Otarmeni, the one-time treatment uses two harmless viruses to deliver working copies of the OTOF gene deep into the inner ear, restoring otoferlin, the protein the cochlea needs to turn sound into signals the brain can read. Its maker, Regeneron, says it will offer the therapy free to patients in the U.S. Doctors who ran the trial described children responding to their parents’ voices, and to music, for the first time.
This particular genetic form of deafness is rare, affecting roughly 50 babies born in the U.S. each year. But researchers believe the breakthrough cracks open the door to gene therapies for many other inherited conditions worldwide.









