I don't really want to get my hopes up and then get depressed when it fails but reading through all the other biomedical companies, FX-322's mechanism of action makes the most logical sense. Other companies, which I will not mention but you can easily look at on Tinnitus Talk, has questionable mechanism of actions (ahem anti-oxidant protection
).
With that said, tinnitus correlates with 50% of hearing loss victims. It's not a causative effect but a symptom along with hearing loss. Restoring hearing might or might not help tinnitus symptoms. Hell, my father has moderate hearing loss with zero tinnitus... But one can only hope it does help with tinnitus relief.