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Inside the ear: scientists probe why cochlear implant hearing varies

NCT ID NCT01805167

Knowledge-focused Sponsor: Centre Hospitalier Universitaire de Nice 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026

Summary

This study aimed to understand why people with cochlear implants vary in how well they understand speech. Researchers measured electrical interactions between the implant's electrodes in 17 adults with hearing loss. They compared these measurements to each person's ability to recognize words in quiet and noisy settings. The goal was to see if electrode interactions explain differences in hearing performance.

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

17 people

The number who actually took part.

Started

Mar 2013

Finished

Feb 2014

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 to 75 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: * Subject of French language * Subject with a moderate bilateral sensorineural hearing loss, severe to profound * Sensorineural hearing loss post-lingual (after onset of language acquisition) * Subject paired with the implant Neurelec (Appendix 1) for more than 9 months * Subject has received an appropriate setting under usual clinical follow-up * Elderly 18 to 75 years * Subject giving consent Exclusion Criteria: * Sensorineural hearing loss pre-lingual * Deafness following a meningitis, or neurodegenerative diseases * Illiteracy * Pregnant women * Subject blind * Subject enjoying a measure of legal protection * Subject incapable of giving consent * Subject vulnerable

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Conditions

The condition(s) this trial relates to.

hearing loss disorder sensorineural hearing loss disorder

As listed by the trial registrant

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

Hearing loss

Contacts and locations

Locations

  • CHU de Nice

    Nice, France

More trials for these conditions

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