MedTrace Logo

The Longer, the Better? Investigating the Effect of Prolonged Acoustic Stimulation on Brief Acoustic Tinnitus Suppression

NCT07472257 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 45

Last updated 2026-03-16

No results posted yet for this study

Summary

This study compared tinnitus suppression after 3-minute and 20-minute acoustic stimulation using an individually optimized stimulus. In total 45 tinnitus patients participated. Thirty-three participants with chronic subjective tinnitus completed three sessions. During the first two sessions, eight individualized filtered and modulated stimuli were presented for 3 minutes each to identify the stimulus inducing the strongest tinnitus suppression. This stimulus was subsequently applied for 20 minutes in the third session.

Conditions

  • Tinnitus

Interventions

OTHER

Acoustic Stimulation - 20 minutes

For each participant, the stimulus which induced the strongest tinnitus loudness suppression (measured with a numeric rating scale in percent compared to baseline loudness) during the previous 2 sessions was chosen and then applied for 20 minutes in a third session.

OTHER

Acoustic stimulation - 3 minutes

Other: Acoustic stimulation Description: sound stimuli were presented diotically with a 1000ms fade-in and fade-out phase in randomized order; in two sessions the following stimuli were applied for 3 minutes each: White Noise (WN), WN with a bandpass filter (WN\_BP) and WN with a bandstop filter (WN\_BS), both filters applied at the individual tinnitus frequency (ITF); different pure tones: one at the ITF, two at the ITF with amplitude modulation at either 10 Hz or 23 Hz (AM\_10Hz, AM\_23Hz) and another two low-frequency tones (three octaves below the patient's ITF) with an amplitude modulation at 10 Hz or 23 Hz as well (AM\_10Hz\_deep, AM\_23Hz\_deep); For each participant, the stimulus which induced the strongest tinnitus loudness suppression (measured with a numeric rating scale in percent compared to baseline loudness) was chosen,

Sponsors & Collaborators

  • University of Regensburg

    lead OTHER

Study Design

Allocation
NON_RANDOMIZED
Purpose
BASIC_SCIENCE
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Max Age
75 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2018-04-01
Primary Completion
2018-12-01
Completion
2018-12-01

Countries

  • Germany

Study Locations

More Related Trials

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07472257 on ClinicalTrials.gov