I'm not sure what you're trying to say? Most drugs developed to treat specific conditions are highly specific.
Take a look at what's available for hearing loss today and you can see it with hearing aids. There are all kinds of limitations for hearing aids on who they can actually help, and it's even worse for cochlear implants.
I'd be hard pressed to believe that if someone with moderate - moderately severe hearing loss were at the ENT, struggling with their declining condition, and the doctors offered them a drug that could give them their hearing back, and may mean less expensive hearing aids, that they would consider sitting it out.
Also, think about what happened to the Phase 2A: People with hearing loss were desperate enough to maybe get drug, that they faked their word scores to get into the trial.
I think I agree with
@Tezcatlipoca, this horse has been beaten to death.