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Can a 40 hz burst of sound silence tinnitus?

NCT ID NCT06646302

Symptom relief Sponsor: Eye & ENT Hospital of Fudan University Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 25, 2026 · Last updated Jun 26, 2026 · Updated 1 time

Summary

This study tested whether a special 40 Hz burst of sound can provide longer-lasting relief from tinnitus (ringing in the ears) compared to standard continuous sound therapy. Researchers enrolled 265 adults with chronic tinnitus and used EEG to measure brain activity changes. The goal is to find a more effective way to temporarily suppress tinnitus and understand how the brain responds.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
Personalized 40 Hz broadband or pure tone acoustic stimulation
What this could lead to
If successful, this could lead to a more effective, personalized sound therapy for temporary tinnitus relief.
What could go wrong
This is a small, early-phase study with no control group, so results may not generalize. The relief is temporary and may not work for everyone.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

265 people

The number who actually took part.

Started

Oct 2024

Finished

Jul 2025

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 to 70 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: 1. Diagnosed with subjective tinnitus; 2. Chronic tinnitus: tinnitus course ≥ 1 month; 3. Normal middle ear function; 4. The average hearing threshold (defined as mean of 0.5, 1, 2, and 4 kHz) of the unaffected ear \< 60 dB; 5. Tinnitus can be heard under normal circumstances. 6. Subjects are able to understand the purpose of the study, volunteer to participate and cooperate with the instructors to complete the experiment, and be willing to sign the informed consent. Exclusion Criteria: 1. Acute phase tinnitus; 2. Fluctuating tinnitus loudness; 3. Severe psychiatric disorders; 4. Inability to complete tinnitus testing; 5. Fluctuating or retrocochlear hearing loss; 6. Conductive hearing loss; 7. Currently participating in other research projects that may affect tinnitus; 8. Subjects who are not considered suitable for this clinical trial by the researchers.

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Conditions

The condition(s) this trial relates to.

tinnitus

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Tinnitus

Contacts and locations

Locations

  • Eye & ENT Hospital of Fudan University

    Shanghai, Shanghai Municipality, 200031, China

More trials for these conditions

Other studies related to the condition(s) this trial covers.