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Can a custom sound map unlock better hearing for cochlear implant users?

NCT ID NCT05558514

Disease control Sponsor: Western University, Canada 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Aug 18, 2026 · Last updated Aug 19, 2026 · Updated 1 time

Summary

This trial is testing whether a personalized, place-based pitch map for cochlear implants can improve hearing compared to the standard one-size-fits-all map. The study involves adults with moderate-to-profound hearing loss who are getting a cochlear implant. Participants will be randomly assigned to receive either the standard map or a custom map based on their inner ear anatomy. Researchers will then compare hearing outcomes, including word recognition and speech understanding in noise, to see if the personalized approach makes a difference.

What this could mean

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

Active substance
Place-based cochlear implant mapping (customized pitch-map based on individual inner ear anatomy)
What this could lead to
If successful, this could lead to better hearing outcomes for cochlear implant users, with improved speech understanding and sound quality.
What could go wrong
The trial is small and early-stage, so results may not apply to all users. Custom maps might not work for everyone and could require adjustment.

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

24 people

The number who actually took part.

Started

Jun 2023

Finished

Jun 2026

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 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: * Adults (18 years of age or older) with moderate-to-profound sensorineural hearing loss bilaterally or single-sided deafness (SSD) * Approved by the Cochlear Implant Program at London Health Sciences Centre (LHSC) to undergo unilateral cochlear implantation * Identify as a native English speaker (recorded speech recognition/perception materials are presented in English) * Deny any cognitive issues * Willing and able to participate in study procedures (e.g., unaided testing, speech recognition testing, spatial hearing testing) * Willing and able to return for follow-up visits (same intervals as recommended clinically for routine follow-up) Exclusion Criteria: * Fail the Mini Mental State Examination based on their age and education level

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Conditions

The condition(s) this trial relates to.

deafness, unilateral hearing loss disorder Hearing Loss, Sensorineural sensorineural hearing loss disorder

As listed by the trial registrant

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

Cochlear implants Hearing loss, sensorineural

Contacts and locations

Locations

  • Western University

    London, Ontario, N6A 3K7, Canada

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