# The Efficacy of Vitamin D Supplementation to Sustain Performance Outcomes

> **NCT07654777** · NA · RECRUITING · sponsor: **Walter Reed Army Institute of Research (WRAIR)** · enrollment: 52 (estimated)

## Conditions studied

- Acute Stress Reaction

## Interventions

- **DIETARY_SUPPLEMENT:** Vitamin D3 (Cholecalciferol)
- **DIETARY_SUPPLEMENT:** Oral Placebo Tablet

## Key facts

- **NCT ID:** NCT07654777
- **Lead sponsor:** Walter Reed Army Institute of Research (WRAIR)
- **Sponsor class:** FED
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** RECRUITING
- **Start date:** 2026-07-17
- **Primary completion:** 2027-09
- **Final completion:** 2027-09
- **Target enrollment:** 52 (ESTIMATED)
- **Last updated:** 2026-09-10


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT07654777

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT07654777, "The Efficacy of Vitamin D Supplementation to Sustain Performance Outcomes". Retrieved via MORVS 2026-10-21 from https://api.morvs.ai/clinical/NCT07654777. Licensed CC0.

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