# Investigating the Effect of Vitamin A Supplementation on Retinitis Pigmentosa

> **NCT00065455** · PHASE1 · COMPLETED · sponsor: **National Eye Institute (NEI)** · enrollment: 11 (—)

## Conditions studied

- Retinitis Pigmentosa

## Interventions

- **DRUG:** Vitamin A

## Key facts

- **NCT ID:** NCT00065455
- **Lead sponsor:** National Eye Institute (NEI)
- **Sponsor class:** NIH
- **Phase:** PHASE1
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2003-07-17
- **Primary completion:** —
- **Final completion:** 2009-05-06
- **Target enrollment:** 11 (—)
- **Last updated:** 2017-07-02


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00065455

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00065455, "Investigating the Effect of Vitamin A Supplementation on Retinitis Pigmentosa". Retrieved via AI Analytics 2026-05-26 from https://api.ai-analytics.org/clinical/NCT00065455. Licensed CC0.

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*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*