# Randomized Trial of Vitamin A and Vitamin E Supplementation for Retinitis Pigmentosa

> **NCT00000114** · PHASE3 · COMPLETED · sponsor: **National Eye Institute (NEI)**

## Conditions studied

- Retinitis Pigmentosa

## Interventions

- **DRUG:** Vitamin E
- **DRUG:** Vitamin A

## Key facts

- **NCT ID:** NCT00000114
- **Lead sponsor:** National Eye Institute (NEI)
- **Sponsor class:** NIH
- **Phase:** PHASE3
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 1984-05
- **Primary completion:** —
- **Final completion:** 1987-06
- **Target enrollment:** — (—)
- **Last updated:** 2009-09-17


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00000114

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00000114, "Randomized Trial of Vitamin A and Vitamin E Supplementation for Retinitis Pigmentosa". Retrieved via AI Analytics 2026-09-26 from https://api.ai-analytics.org/clinical/NCT00000114. Licensed CC0.

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