# Vitamin D Supplementation D_SAF Pilot Study

> **NCT04033796** · NA · COMPLETED · sponsor: **University of Surrey** · enrollment: 532 (actual)

## Conditions studied

- Vitamin D Deficiency

## Interventions

- **DIETARY_SUPPLEMENT:** 25,000 IU
- **DIETARY_SUPPLEMENT:** 50,000 IU
- **DIETARY_SUPPLEMENT:** Placebo

## Key facts

- **NCT ID:** NCT04033796
- **Lead sponsor:** University of Surrey
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2014-12-01
- **Primary completion:** 2016-06-10
- **Final completion:** 2016-06-10
- **Target enrollment:** 532 (ACTUAL)
- **Last updated:** 2019-07-26

## Collaborators

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- [object Object]
- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04033796

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04033796, "Vitamin D Supplementation D_SAF Pilot Study". Retrieved via AI Analytics 2026-06-05 from https://api.ai-analytics.org/clinical/NCT04033796. Licensed CC0.

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