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Brain drain: do kids with cochlear implants work harder to listen?

NCT ID NCT07509788

Knowledge-focused Sponsor: Xiong hao Source: ClinicalTrials.gov ↗

What the study statuses mean

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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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This observational study looks at how much mental energy children aged 6-18 with cochlear implants use when listening, and whether that extra effort slows their brain development over three years. Researchers will compare 240 children with cochlear implants to 120 children with normal hearing using safe, painless brain scans and eye-tracking during listening tasks. The study does not test any new treatment—it aims to help doctors understand when these children need extra support.

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 360 people

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

Started

Oct 2025

Expected to finish

Oct 2030

An estimate. End dates often move.

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.

Who is studied

We aim to recruit 360 participants aged 6-18 years, categorized into three groups: a normal-hearing (NH) control group, a unilateral listening group (unilateral cochlear implantation, UCI), and a bilateral listening group (comprising bilateral cochlear implantation or bimodal stimulation-unilateral CI with a contralateral hearing aid).

Ages

6 to 18 years

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.

CI Group Inclusion Criteria: 1. Aged 6-18 years 2. Normal vision, including corrected vision 3. Prelingual deafness with bilateral severe-to-profound sensorineural hearing loss, with unilateral or bilateral cochlear implantation 4. Good speech perception ability, with Categories of Auditory Performance-II (CAP-II) score of 5 or above 5. Cooperative with testing, with signed informed consent from parent or guardian Normal-Hearing Control Group Inclusion Criteria: 1. Aged 6-18 years 2. Normal vision, including corrected vision 3. Bilateral pure-tone average at 250, 500, 1000, 2000, and 4000 Hz of 30 dB HL or less 4. Cooperative with testing, with signed informed consent from parent or guardian Exclusion Criteria (All Groups): 1. Diagnosed neurological or psychiatric disorders 2. Absence of informed consent from parent or guardian 3. Other conditions deemed unsuitable for participation by the investigators

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Conditions

The condition(s) this trial relates to.

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 hearing loss Cochlear implant users

How to take part

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

  1. The places running it

    1 site. 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

  • Guangdong Provincial People's Hospital

    RECRUITING

    Guangzhou, Guangdong, China

More trials for these conditions

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