Follows people with Usher syndrome over time to track vision, hearing and balance
Observes how Usher syndrome changes vision, hearing and balance over time.
Key facts
- Who runs it
- Centre Hospitalier National d'Ophtalmologie des Quinze-Vingts
- Where
- Paris, FranceSee the 4 sites
- Trial code
- Registry title
- Natural History Study of Usher Syndrome ( Light4Deaf )
- Status
- Recruiting
- People taking part
- 400 people, planned
- Started
- 8 Jun 2017
- Expected to end
- 8 Jun 2027
- Type of study
- Observational
- Record updated
- 14 December 2020
Who can take part
AI summary
From the trial's eligibility criteria. Machine-read from the registry text on this page, so it can be wrong. The registry text below and the trial team decide who can take part.
The trial is looking for people with Usher syndrome type I, II or III. They are followed for 5 years to record how the disease changes in the eyes, hearing and balance.
- Sex
- All sexes can join.
- Disease stage
- Usher syndrome type I, II or III.
- Biomarker or test result
- A molecular (genetic) diagnosis of Usher syndrome, or a clinical diagnosis that will then be confirmed by a molecular diagnosis.
Main reasons for not taking part
- People who cannot understand the study and cannot give informed consent, themselves or through a legal representative
The registry criteria, word for word
Show all 4 criteriaShow less
Who can take part
- Patient with a molecular diagnosis of Usher syndrome type I, II or III or a clinical diagnosis of Usher syndrome type I, II or III which will then be confirmed by a molecular diagnosis
- Health insurance beneficiary
- Informed consent signed by the patient or their legal representatives
Who cannot take part
- Patient or his/her legal representatives unable to understand the study and for whom informed consent cannot be obtained
Where in France
- Centre Hospitalier National D'ophtalmologie Des Quinze VingtsParis, FranceContact: Isabelle AUDO, PU-PHTaking people
- CHU NeckerParis, FranceContact: Natalie LoundonTaking people
- CHU Pitie SalpetriereParis, FranceContact: Bahram BodaghiTaking people
- CHU Robert DebréParis, FranceContact: Sylvette Wiener VacherTaking people
About the trial
What the trial wants to find out
Clinical centres in the LIGHT4DEAF consortium have developed and will continue to improve a reliable, early molecular diagnosis and protocols for full clinical characterisation of Usher syndrome, which will be valuable for the foreseen USH clinical trials. The clinical arm of the project aims at performing a deep-phenotyping of retinal degeneration, hearing loss, vestibular dysfunction, neurocognitive ability of subects with a molecular diagnosis of any Usher syndrome. Functional and structural parameters for retinal, auditory, and vestibular impairments are followed overtime to document the natural history of the disease and establish relevant clinical endpoint for disease progression that may be useful for future clinical trials.
Questions to ask the study team
- How often do I need to come in, and for how long each time?
- Are travel costs paid?
- Can I keep my own doctor?
- What happens if I want to stop?
Contact the study team: see the registry record → Contacts and Locations
Print a page for my doctorData and sources
- Registry record
- Listed on ClinicalTrials.gov.
- Official title
- Natural History Study of Usher Syndrome in a Cohort of Patients Followed Longitudinally for 5 Years
- Plain-language title
- Follows people with Usher syndrome over time to track vision, hearing and balanceGenerated from the registry record. The registry title is the official one.
- AI summary
- From the trial's eligibility criteria. Read by machine on 12 November 2026.
- Record updated
- 14 December 2020