# Natural History and Genetic Studies of Usher Syndrome

> **NCT00106743** · — · COMPLETED · sponsor: **National Eye Institute (NEI)** · enrollment: 249 (actual)

## Conditions studied

- Retinitis Pigmentosa Syndromic
- Congenital Deafness
- Usher Syndrome
- Retinitis Pigmentosa and Deafness
- Retinitis Pigmentosa

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT00106743
- **Lead sponsor:** National Eye Institute (NEI)
- **Sponsor class:** NIH
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2005-03-21
- **Primary completion:** —
- **Final completion:** 2019-04-30
- **Target enrollment:** 249 (ACTUAL)
- **Last updated:** 2019-12-12


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00106743

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00106743, "Natural History and Genetic Studies of Usher Syndrome". Retrieved via AI Analytics 2026-05-28 from https://api.ai-analytics.org/clinical/NCT00106743. Licensed CC0.

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