Some $1.5M+ has been granted to the study of Tinnitus Retraining Therapy (TRT), lead by Richard S. Tyler. (Source and above screenshot from Grantome) The study was supposed to end in 2011. Yet, to this date, results have not been published. (Source ClinicalTrials.gov) We asked NIDCD for information on the results of the study after Richard S. Tyler didn't respond to our e-mail inquiries, however that yielded no result. NIDCD just told us that the results of any study funded by them will be available on the study's page on ClinicalTrials.gov, and if they're not posted, they're not available. Figures. It would be very interesting to get some actual data from this study, since Tinnitus Retraining Therapy is much discussed here, but with not too much evidence available as of this writing. Even the Cochrane concludes that evidence of Tinnitus Retraining Therapy is inconclusive and needs more research.