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

Sensorion1 site in 1 country180 target enrollmentNovember 18, 2022

ConditionsSensorineural Hearing Loss, Bilateral AUNB1 DFNB1A Congenital Deafness DFNB9 OTOF Gene Mutation GJB2 Gene Mutation

InterventionsQuality of Life Questionnaires Pure Tone Audiometry Assessment

Overview

Phase: N/A
Intervention: Quality of Life Questionnaires
Conditions: Sensorineural Hearing Loss, Bilateral
Sponsor: Sensorion
Enrollment: 180
Locations: 1
Primary Endpoint: Audiological characteristics
Status: Recruiting
Last Updated: 26 days ago

Overview Investigators Eligibility Criteria Arms & Interventions Outcomes Sites Similar Trials

Overview

Brief Summary

The purpose of this study is to follow the natural history of non-syndromic hearing loss caused by mutations in two genes (GJB2 or OTOF) in children up to 16 years of age.

Detailed Description

The study aims to: * better describe the prevalence of cases of DFNB1A and DFNB9, including the type of mutations, and to assess the clinical course of the disease in children up to 16 years of age who have a mild to profound deafness. * better understand the audiological and genetic characteristics of the participants with congenital versus evolutive DFNB1A and DFNB9 deafness.

Registry

clinicaltrials.gov

Start Date

November 18, 2022

End Date

November 18, 2028

Last Updated

26 days ago

Study Type

Observational

Sex

All

Investigators

Sponsor

Sensorion

Responsible Party

Sponsor

Eligibility Criteria

Inclusion 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.