Nearly all participants (11 of 12) experienced clinically meaningful hearing improvements, including three who achieved normal hearing; eight with longer follow-up showed stability or continued improvement in their hearing Among three who completed speech assessments, all showed significant improvement with one able to identify one- and two-syllable words with no visual cues and respond to distant sounds and speech in noisy environments Latest DB-OTO data presented at AAO-HNSF; U.S. regulatory submission pl ...