Vardenafil (Levitra) by Bayer for tinnitus

Oral phosphodiesterase-5 inhibitor evaluated in a randomized placebo-controlled pilot study for chronic subjective cochlear tinnitus after anecdotal reports of tinnitus improvement in patients treated with vardenafil for erectile dysfunction.

Verified as a real Bayer-sponsored Phase 2 randomized, double-blind, placebo-controlled pilot study of oral vardenafil/Levitra for chronic subjective tinnitus. The study was completed in 2007; no public positive results or active follow-on tinnitus development program were confirmed in this pass, so HearScape should treat it as a historical repurposed-drug study rather than an active Bayer tinnitus pipeline asset.