# Impact of Vitamin A Supplementation on Immune System in Multiple Sclerosis Patients

> **NCT01225289** · PHASE4 · COMPLETED · sponsor: **Tehran University of Medical Sciences** · enrollment: 36 (actual)

## Conditions studied

- Relapsing Remitting Multiple Sclerosis

## Interventions

- **DIETARY_SUPPLEMENT:** Vitamin A
- **DRUG:** Placebo

## Key facts

- **NCT ID:** NCT01225289
- **Lead sponsor:** Tehran University of Medical Sciences
- **Sponsor class:** OTHER
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2009-10
- **Primary completion:** 2013-12
- **Final completion:** 2014-01
- **Target enrollment:** 36 (ACTUAL)
- **Last updated:** 2014-03-14


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT01225289

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT01225289, "Impact of Vitamin A Supplementation on Immune System in Multiple Sclerosis Patients". Retrieved via AI Analytics 2026-06-02 from https://api.ai-analytics.org/clinical/NCT01225289. Licensed CC0.

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