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Cochlear implants help seniors hear better in noisy places

NCT ID NCT05250414

Symptom relief Sponsor: Med-El Corporation 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Sep 01, 2026 · Updated 2 times

Summary

This study tested whether a cochlear implant can help adults aged 65 and older who are deaf in one ear but have normal hearing in the other. Fifteen participants received the implant, and researchers measured how well they understood speech in noisy settings over a year. The goal was to see if the implant improved their ability to hear when noise comes from the side of the good ear.

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

18 people

The number who actually took part.

Started

Jun 2022

Finished

Aug 2025

Lead sponsor

A company

The lead sponsor is a pharmaceutical, biotech, or medical-device company.

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: * 65 years of age or older at the time of implantation * Unilateral profound hearing loss, as defined by a pure-tone average (500, 1000, 2000, and 4000 Hz) of 90 dB or greater in the ear to be implanted * Sensorineural hearing loss in the ear to be implanted, as defined by an air-bone gap less than or equal to 10 dB at two or more frequencies out of 500, 1000, 2000, and 4000 Hz * Normal or near-normal hearing in the non-implanted ear, as defined by a pure-tone average (500, 1000, 2000, and 4000 Hz) of 30 dB or less * Word recognition in the ear to be implanted of 5% or less on CNC word score in quiet * Previous experience with an appropriately-fit CROS, BI-CROS, bone conduction, or traditional hearing aid, as deemed appropriate by investigator * Fluent in English Exclusion Criteria: * Duration of profound hearing loss of 10 years or more * Sudden onset of hearing loss within six months of implantation * Evidence of non-functional cochlear nerve or other retrocochlear hearing loss * Evidence of severe cochlear malformation (i.e., common cavity or ossification) * External or middle ear infection * Suspected cognitive concern * Other medical contraindication for surgery or anesthesia

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Conditions

The condition(s) this trial relates to.

deafness, unilateral Hearing Loss, Unilateral sensorineural hearing loss disorder

As listed by the trial registrant

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

Hearing loss, unilateral

Contacts and locations

Locations

  • Sunnybrook Health Sciences Centre

    Toronto, Ontario, M4N 3M5, Canada

  • University of Iowa Hospitals and Clinics

    Iowa City, Iowa, 52242, United States

  • University of North Carolina

    Chapel Hill, North Carolina, 27599, United States

More trials for these conditions

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