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Taking people in FranceNo phase

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

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?

Contact the study team: see the registry record → Contacts and Locations

Print a page for my doctor

Data 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