Cure the hearing loss = Cure the Tinnitus
There is a hypothesis that restoration of hearing via cochlea hair cell regeneration and auditory nerve fiber repair will cure/reduce tinnitus in cases of it being related to sensori-neural hearing loss.
This is based on a model that tinnitus and hyperacusis are caused by higher brain functions amplifying damaged frequency regions to compensate for hearing loss and as a result cause an over active neuronal noise in audiotory parts of the brain (Tinnitus) and amplify frequencies that are normal causing them to sound ultra loud (Hyperacusis)
The "Central Gain" model perfectly describes tinnitus and hyperacusis relating to amplification.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4208401/
Treatment for hearing loss currently in Clinical trials
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All current trials are only for cochlear hair cell regeneration
Frequency Therapeutics
FX-322 – Noise-Induced Hearing Loss (NIHL).
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GenVec/Novartis
CGF-166 – Hearing loss and vestibular dysfunction.
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Auris Medical
AM-111 – Acute Sensori-Neural Hearing Loss (ASNHL).
Pre-Clinical trial treatments to repair auditory nerve fibers
Otonomy
OTO-413 – Hidden Hearing Loss (HHL), neuronal growth and repair.
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Affichem
AF243 – a drug to restore hearing.
Please be patient help is on the way