# Vitamin D Supplementation and Immunity/Physical Performance

> **NCT03132103** · NA · UNKNOWN · sponsor: **Bangor University** · enrollment: 260 (estimated)

## Conditions studied

- Vitamin D Status

## Interventions

- **DIETARY_SUPPLEMENT:** Oral Vitamin D3
- **DIETARY_SUPPLEMENT:** Placebo Oral Vitamin D3
- **RADIATION:** Solar simulated radiation (SSR)
- **RADIATION:** Placebo SSR

## Key facts

- **NCT ID:** NCT03132103
- **Lead sponsor:** Bangor University
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** UNKNOWN
- **Start date:** 2016-01-06
- **Primary completion:** 2017-04-28
- **Final completion:** 2017-08-31
- **Target enrollment:** 260 (ESTIMATED)
- **Last updated:** 2017-04-27

## Collaborators

- [object Object]
- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03132103

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03132103, "Vitamin D Supplementation and Immunity/Physical Performance". Retrieved via AI Analytics 2026-06-01 from https://api.ai-analytics.org/clinical/NCT03132103. Licensed CC0.

---

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