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Hearing aids for the brain? study tests if cochlear implants boost memory in seniors

NCT ID NCT02729402

Knowledge-focused Sponsor: University of Utah 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study looked at whether cochlear implants, which help restore hearing, can also improve thinking and memory in adults aged 65 and older with hearing loss. Researchers gave 37 participants a series of cognitive tests before surgery and again at 6 months, 12 months, and 5 years after. The goal was to see if better hearing might lead to better brain function over time.

What this could mean

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

Active substance
cochlear implant
What this could lead to
If hearing restoration through cochlear implants is linked to better cognitive scores, it could point toward a way to slow or prevent dementia in older adults with hearing loss.
What could go wrong
This is a small, single-group study with no control group, so any cognitive changes could be due to other factors. The results may not apply to everyone with hearing loss.

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

37 people

The number who actually took part.

Started

Jun 2015

Finished

Oct 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

65 years and older

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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: * The subjects will be age 65 years and older, with no upper limit of age range with hearing loss that are candidates for a cochlear implant. Exclusion Criteria: * Those patients who are not able to undergo cochlear implantation surgery due to medical co-morbidities would not be eligible for the study.

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Conditions

The condition(s) this trial relates to.

dementia hearing loss disorder presbycusis

As listed by the trial registrant

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

Dementia Hearing loss Presbycusis

More trials for these conditions

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