Hearing and Brain Development Cohort in Children and Adolescents
HBD-Cohort
A Longitudinal Cohort Study of Hearing and Brain Development in Children and Adolescents With Hearing Loss Across Different Hearing Management Pathways and in Normal-Hearing Controls
1 other identifier
observational
5,000
1 country
1
Brief Summary
This bidirectional observational cohort study aims to establish a Hearing and Brain Development (HBD) cohort in children and adolescents with hearing loss across different hearing management pathways, including hearing aid fitting, cochlear implantation, auditory brainstem implantation, gene therapy, and follow-up without intervention, as well as in a normal-hearing control group. Participants will undergo longitudinal assessments of hearing, speech, language, neurodevelopment, and multimodal brain function.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for all trials
Started May 2026
Longer than P75 for all trials
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
May 20, 2026
CompletedStudy Start
First participant enrolled
May 20, 2026
CompletedFirst Posted
Study publicly available on registry
June 4, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 31, 2030
ExpectedStudy Completion
Last participant's last visit for all outcomes
December 31, 2030
June 4, 2026
April 1, 2026
4.6 years
May 20, 2026
June 3, 2026
Conditions
Outcome Measures
Primary Outcomes (3)
Change in Categories of Auditory Performance-II Score
The Categories of Auditory Performance-II scale will be used to assess auditory performance. Scores range from 0 to 9, with higher scores indicating better auditory performance. Change is calculated as the value at follow-up minus the baseline value.
From baseline to 24-month follow-up
Change in Speech Intelligibility Rating Score
The Speech Intelligibility Rating scale will be used to assess speech intelligibility. Scores range from 1 to 5, with higher scores indicating better speech intelligibility. Change is calculated as the value at follow-up minus the baseline value.
From baseline to 24-month follow-up
Change in MRI-derived Brain Development Deviation Composite Score
The MRI-derived Brain Development Deviation Composite Score will be calculated from pre-specified multimodal brain magnetic resonance imaging measures using age-adjusted normative models. All pre-specified MRI measures will be combined into a single standardized composite score before analysis. The score summarizes the magnitude of deviation from age-expected brain development. Higher values indicate greater deviation from age-expected brain development. Change is calculated as the value at follow-up minus the baseline value.
From baseline to 24-month follow-up
Secondary Outcomes (4)
Change in Parent-Child Interaction Quality Composite Score
From baseline to 24-month follow-up
Change in Griffiths Mental Development Scales General Development Score
From baseline to 24-month follow-up
Change in Ages and Stages Questionnaires: Social-Emotional, Second Edition Total Score
From baseline to 24-month follow-up
Change in Adaptive Behavior Assessment System, Second Edition General Adaptive Composite Score
From baseline to 24-month follow-up
Study Arms (6)
HA
Participants suitable for unilateral or bilateral hearing aid(s) fitting, without any other intervention methods (cochlear implantation, gene therapy treatment, auditory brainstem implantation, etc.).
CI
Participants suitable for unilateral or bilateral cochlear implantation, without gene therapy treatment or auditory brainstem implantation.
ABI
Participants suitable for unilateral or bilateral auditory brainstem implantation.
GT
Participants suitable for gene therapy treatment.
FU
Participants with hearing loss who do not receive any intervention.
NH Control
Participants with normal hearing who are enrolled as healthy controls.
Eligibility Criteria
The study population consists of children and adolescents aged 0 to 18 years who are evaluated and/or managed at the Department of Otolaryngology-Head and Neck Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine. The cohort includes participants with hearing loss across different hearing management pathways, including hearing aid fitting, cochlear implantation, auditory brainstem implantation, gene therapy, and follow-up without intervention, as well as a normal-hearing control group.
You may qualify if:
- Age no more than 18 years.
- For the HA/CI/ABI/GT/FU groups: behavioral or pure-tone hearing threshold \>=20 dB HL, or air-conduction ABR \>=35 dB nHL; For the normal-hearing control group: participants diagnosed as normal hearing by experienced physicians.
You may not qualify if:
- Inability to cooperate with study testing procedures.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine
Shanghai, 200011, China
Biospecimen
Blood
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Hao Wu
Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine
- STUDY CHAIR
Hao Wu
Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine
Central Study Contacts
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
May 20, 2026
First Posted
June 4, 2026
Study Start
May 20, 2026
Primary Completion (Estimated)
December 31, 2030
Study Completion (Estimated)
December 31, 2030
Last Updated
June 4, 2026
Record last verified: 2026-04
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL, SAP
- Time Frame
- The IPD will be available beginning 6 months after study completion.
- Access Criteria
- Detailed data are available upon reasonable request.