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Hearing aid study explores link between better hearing and brain health

NCT ID NCT04899037

Knowledge-focused Sponsor: University of South Florida 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Sep 10, 2026 · Updated 4 times

Summary

This study follows 50 adults aged 18–85 with certain types of hearing loss who either use or could use an FDA-approved bone-anchored hearing device. Over 3 years, researchers will measure changes in memory, attention, and other thinking skills. The goal is to see if treating hearing loss with this device might help slow cognitive decline.

What this could mean

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

What this could lead to
If successful, this study could show that treating hearing loss with an osseointegrated device helps preserve cognitive function in older adults.
What could go wrong
This is an observational pilot study with only 50 participants, so results may not apply to everyone. It does not test a new treatment, only tracks existing device users.

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 50 people

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

Started

Jan 2021

Expected to finish

Dec 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

adults age 18-85 years with an audiometric configuration (conductive or mixed hearing loss, single sided deafness) would could benefit from an OID hearing intervention

Ages

18 to 85 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: * age 18-85 years * community dwelling * residency: participants must plan to reside in the local area for the study duration. * fluent English-speaker * Audiometric hearing impairment: participants must have hearing configuration that could benefit from OID hearing intervention. * Mini-Mental State Exam (MMSE) score \> 23 for individuals with high-school degree or less; Mini-Mental State Exam (MMSE) score \>25 for individuals with some college or more; participants must be at risk for cognitive decline the range quantified well by neurocognitive testing, and so must be free from more substantial cognitive impairment at baseline. * willingness to participant and adhere to the protocol: participants must be willing and able to consent to participate in the study and be willing to commit to adhere to the study protocol for the duration of the study (3 years) Exclusion Criteria: * self-reported disability in \>2 or more Activities of Daily Living (ADL) * medical contraindication to use of OID; because OIDs will be the primary device used in the hearing intervention, participants with medical contraindications to OID use are excluded

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Conditions

The condition(s) this trial relates to.

conductive hearing loss disorder deafness, unilateral hearing loss disorder Hearing Loss, Conductive hearing loss, mixed conductive-sensorineural Hearing Loss, Unilateral

As listed by the trial registrant

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

Deafness, unilateral Hearing loss, conductive Hearing loss, mixed

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 USF Health Otolaryngology; Auditory Rehabilitation & Clinical Trials Lab

    RECRUITING

    Tampa, Florida, 33613, United States

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