The objective of this study is to examine the efficacy of tinnitus retraining therapy (TRT)
as a treatment of chronic tinnitus in people with limited hearing loss. The study design is
prospective, randomized, double-blind, with repeated measures. The null hypothesis states
there will be no difference in subjective measures of tinnitus severity between subjects
treated with standard TRT and subjects treated with sham TRT.
The specific aims of the study are to:
- Evaluate the efficacy of TRT in reducing the objective magnitude of tinnitus.
- Evaluate the efficacy of TRT in reducing the subjective awareness and impact of
- Determine the therapeutic time course of improvement in tinnitus.
- Determine the long-term improvement in tinnitus derived from TRT.
- Chronic non-pulsatile tinnitus
- Subjective hearing loss
- Objective hearing loss with pure tone average greater than 35 dB sound pressure level
- Evidence of significant depression or suicidal ideation