Clinical trial Recruiting at 1 site Observational Ages Any age to 16

Tracking hearing loss in children with specific genetic mutations

Official title: Longitudinal Study of the Natural History of Two Autosomal Recessive Non Syndromic Deafness (DFNB1A and DFNB9) in Children up to 16 Years of Age

Run by Sensorion · NCT05402813 · Data updated 2026-11-12

This study is tracking children with hearing loss caused by specific genetic mutations to see how their condition changes over time and how it affects their quality of life.

Quick facts

Study typeObservational
AgesAny age to 16 Years
SexAll
Enrollment180 (estimated)
SponsorSensorion
Industry-sponsored
Locations1 site (Paris)
StatusRecruiting
StartedNovember 18, 2022
Main results expectedJune 2031
Study endsJune 2031
Registry record updatedJune 1, 2026
Trial IDNCT05402813 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are children aged 16 years or younger with documented mutations in the GJB2 or OTOF genes and bilateral sensorineural hearing loss.

Probably not a fit

Patients with other types of deafness, such as unilateral deafness or syndromic deafness linked to different genetic mutations, may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational study follows children up to 16 years old who have mild to profound hearing loss due to mutations in the GJB2 or OTOF genes. It aims to describe the prevalence and types of mutations associated with DFNB1A and DFNB9, and to assess the clinical course of the disease. Participants will undergo pure tone audiometry assessments and complete quality of life questionnaires to gather comprehensive data on their audiological and genetic characteristics. The study will help differentiate between congenital and evolutive forms of hearing loss in these children.

Why it matters

Potential benefit: If successful, this study could enhance understanding of genetic hearing loss, leading to improved management and treatment strategies for affected children.

How similar studies have gone: Other studies have shown success in understanding genetic causes of hearing loss, making this approach promising but still requiring further exploration.

Who can join: the full rules

Show full inclusion / exclusion criteria
Main Inclusion Criteria:

Participants meeting all the following main inclusion criteria will be eligible to participate in the study:

* Aged ≤ 16 years on the date of signed informed consent for cohort 1 and ≤ 10 years for cohort 2;
* With a diagnosis of non-syndromic, bilateral, mild to profound, sensorineural hearing loss (according to the American Speech Language-Hearing Association);
* With documented genotyping results showing mutation(s) in GJB2 or OTOF genes;
* Written informed consent as required by local regulations.
* Either without Cochlear Implant, or with unilateral or bilateral Cochlear Implant(s)

Exclusion Criteria:

Participants presenting with any of the following main exclusion criteria will not be included in the study

* Other type of deafness, such as unilateral deafness, persistent conductive deafness, malformation syndrome, syndromic deafness, known familial deafness linked to mutations in other genes than OTOF or GJB2;
* Documented genotyping results showing pathogenic mutation(s) in other gene(s) than GJB2 or OTOF genes in the tested panel;
* Unable and/or unwilling to comply with all the protocol requirements and/or study procedures.

Where it's running

  • Necker Hospital
    Paris, France
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.