Bimodal Electrical-Sound Stimulation and Auditory Training for Chronic Tonal Tinnitus

This study tests whether pairing non-invasive stimulation of the greater occipital nerve (NITESGON) with an attentionally demanding auditory frequency discrimination training task reduces tinnitus loudness and tinnitus-related distress. One hundred adults with chronic tonal tinnitus will be randomised to one of four groups in a 2×2 factorial design: real versus sham NITESGON and active versus passive listening during auditory stimulation. Participants complete eight sessions across four weeks, with outcomes assessed at baseline, end of treatment, 28 days post-treatment, and 6 months post-treatment.

NCT Number	NCT07393880
Lead Sponsor	University of Dublin, Trinity College
Conditions	Tinnitus, Subjective, Tinnitus, Chronic Tinnitus
Enrollment	100 participants
Start Date	2026-01-30
Primary Completion	2028-09-30 (estimated)
Study Completion	2029-01-30 (estimated)
Updated on ClinicalTrials.gov	2026-04-03