# Genetic Study of Patients Suffering From Congenital Amaurosis of Leber or From an Early Severe Retinal Dystrophy

> **NCT00422721** · NA · COMPLETED · sponsor: **Nantes University Hospital** · enrollment: 360 (estimated)

## Conditions studied

- Amaurosis
- Retinal Diseases

## Interventions

- **PROCEDURE:** realization of a family tree
- **PROCEDURE:** refractometry
- **PROCEDURE:** evaluation of the presence of a nystagmus
- **PROCEDURE:** ocular behavior
- **PROCEDURE:** test of baby vision
- **PROCEDURE:** test of keenness
- **PROCEDURE:** reading test
- **PROCEDURE:** visual field
- **PROCEDURE:** color vision
- **PROCEDURE:** electroretinographical activity
- **PROCEDURE:** biomicroscopical test
- **PROCEDURE:** retinal imaging
- **PROCEDURE:** retinal autofluorescence
- **PROCEDURE:** genotyping

## Key facts

- **NCT ID:** NCT00422721
- **Lead sponsor:** Nantes University Hospital
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2007-04
- **Primary completion:** —
- **Final completion:** —
- **Target enrollment:** 360 (ESTIMATED)
- **Last updated:** 2011-11-24


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00422721

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00422721, "Genetic Study of Patients Suffering From Congenital Amaurosis of Leber or From an Early Severe Retinal Dystrophy". Retrieved via AI Analytics 2026-06-25 from https://api.ai-analytics.org/clinical/NCT00422721. Licensed CC0.

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