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Cochlear implants under the microscope: registry aims to map years of hearing gains

NCT ID NCT03882229

Knowledge-focused Sponsor: MED-EL Elektromedizinische Geräte GesmbH 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Sep 16, 2026 · Last updated Sep 17, 2026 · Updated 1 time

Summary

Researchers are building a registry to collect long-term hearing and quality-of-life data from children and adults who receive MED-EL cochlear implants. Participants are treated as usual by their own doctors, and their clinical records are anonymized and entered into a secure cloud platform at set intervals. The goal is to compare repeated measures over time, such as hearing thresholds, sound quality, and auditory development, to better understand how well the implants work in real-world settings.

What this could mean

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

Active substance
MED-EL cochlear implant system
What this could lead to
If the registry succeeds, it could give doctors clearer, comparable evidence on how well cochlear implants restore hearing over years, which may help guide treatment choices.
What could go wrong
This is an observational registry, not a controlled experiment, so it cannot prove cause and effect. Data quality depends on clinics following the same procedures, and results may not apply to other implant brands or regions.

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 100 people

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

Started

Feb 2020

Expected to finish

Jan 2030

An estimate. End dates often move.

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.

Who is studied

Subjects of any age and gender who are implanted or will be implanted with a MED-EL CI system.

Ages

Children (under 18), adults (18 to 64) and older adults (65 and over)

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: * Subjects who are implanted or will be implanted with a MED-EL CI system. * Signed written informed consent for data collection for registry purposes. Exclusion Criteria: * Lack of compliance with any inclusion criteria. * Subjects not receiving a MED-EL CI system due to medical or personal reasons after having consented. * Anything that, in the opinion of the Investigator would place the subject at increased risk or preclude the subject's full compliance with or completion of the registry procedures.

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As listed by the trial registrant

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

Cochlear implants

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    3 sites in 2 countries. 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

  • Hearing and Speech Institute

    RECRUITING

    Cairo, Egypt

  • King Abdullah Ear Specialist Center (KAESC)

    RECRUITING

    Riyadh, 11411, Saudi Arabia

  • King Saud Medical City

    RECRUITING

    Riyāḑ, 12746, Saudi Arabia

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