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Hidden hearing loss: why your grandparent can't hear you in a crowd

NCT ID NCT07646119

Knowledge-focused Sponsor: Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study looks at why some people aged 60 and older have trouble understanding speech in noisy settings, even though their standard hearing tests are normal. Researchers will use hearing tests and brain scans to see if the problem is related to how the brain processes sound timing. The goal is to better understand this hidden hearing loss and how the brain tries to compensate.

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.

Participants

About 200 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

Jun 2026

An estimate. Start dates often move.

Expected to finish

May 2027

An estimate. End dates often move.

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.

Who is studied

Community-dwelling adults aged 60 years and older residing in Shanghai, who has objectively normal hearing thresholds on pure-tone audiometry but self-report difficulties understanding speech in noisy or complex listening environments.

Ages

60 years and older

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. Aged 60 years or older; 2. Bilateral pure-tone average hearing thresholds across 0.5, 1, 2, and 4 kHz ≤ 25 dB HL; 3. Self-reported hearing difficulties identified during previous hearing screening; 4. Fluent in Mandarin Chinese; 5. No history of otologic disease, ear trauma, ototoxic medication history, or long-term noise exposure; 6. No known neurological or psychiatric disorders, or other major medical conditions that may affect nervous system function. Exclusion Criteria: 1. Unable to comply with or complete the study assessments; 2. Mini-Mental State Examination (MMSE) score \< 24 during previous health screening; 3. Refuse to participate in the study

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Conditions

The condition(s) this trial relates to.

Hearing Loss, Hidden presbycusis

As listed by the trial registrant

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

Hidden hearing loss

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Department of Otorhinolaryngology-Head and Neck Surgery, Shanghai Jiao Tong University School of Medicine, Shanghai, China

    RECRUITING

    Shanghai, Shanghai Municipality, 200011, China

More trials for these conditions

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