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A Natural History Study With Hearing Loss Associated With GJB2, SLC26A4, OTOF, USH2A, MPZL2, and MT-RNR1

A Natural History Study With Hearing Loss Associated With GJB2, SLC26A4, OTOF, USH2A, MPZL2, and MT-RNR1

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2500111926
Enrollment
Unknown
Registered
2025-11-07
Start date
2025-11-09
Completion date
Unknown
Last updated
2025-11-11

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Hereditary hearing loss

Interventions

Hearing loss participant group:None

Sponsors

Eye & ENT Hospital of Fudan University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
No minimum to 60 Years

Inclusion criteria

Inclusion criteria: 1.The subject and/or their legal guardian(s) must provide informed consent for the study prior to any study procedures, voluntarily sign the written informed consent form, and be willing to comply with the follow-up visits as scheduled by the protocol; 2.The subject (with assistance from their guardian if necessary) must be able to communicate effectively with the investigator and adhere to the study requirements. For young children without mature language skills, they must be able to cooperate with the investigator's requirements with the assistance of their guardian; 3. Age <= 60 years, male or female; 4. Documented diagnosis of hearing loss associated with pathogenic variants in one of the following genes: GJB2, SLC26A4, OTOF, MPZL2, USH2A, or the mitochondrial gene MT-RNR1, as confirmed by a genetic test report; 5. Audiological inclusion criterion: A hearing threshold level greater than 20dB as determined by Auditory Brainstem Response (ABR) and/or PureTone Audiometry (PTA).

Exclusion criteria

Exclusion criteria: 1. No deafness-associated gene mutations were detected by genetic testing; 2. Presence of hearing loss caused by malformations of the external or middle ear; 3. Presence of a history of traumatic brain injury or hearing loss resulting from it; 4. A clear association exists between hearing loss and a history of hyperpyrexia (high fever); 5. Presence of central nervous system disorders or intellectual impairment that may compromise the validity of the assessments; 6. Any other condition(s) for which the investigator deems the subject unsuitable for participation in this study.

Design outcomes

Primary

MeasureTime frame
Imaging test;Assessment of hearing loss;Genetic testing;

Secondary

MeasureTime frame
Auditory and Speech Tests;Vestibular Function Tests;Clinical Developmental Scale;Hearing-Related Quality of Life Assessment;Ophthalmic Examinations;

Countries

China

Contacts

Public ContactYilai Shu

Eye & ENT Hospital of Fudan University

yilai_shu@fudan.edu.cn+86 21 6437 7134

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026