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NCT02954549 · ClinicalTrials.gov registry record · NA
Vitamin D Supplementation in Warfighters
A NA study, sponsored by Madigan Army Medical Center.
- Completed
- Registry status
- NA
- Development phase
- 131
- Enrollment target
NCT02954549: Completed NA study, sponsored by Madigan Army Medical Center.
NCT02954549 is a NA study that has completed, run by Madigan Army Medical Center. The registered enrollment target is 131 participants, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (91% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT02954549, a NA study, has completed, sponsored by Madigan Army Medical Center.
- COMPLETED
- Registry status
- NA
- Development phase
- 131 participants
- Enrollment target
Study Summary
A genomics-based approach will target specific genes that may explain the response in biomarkers and symptoms before and after supplementation. One objective is to generate evidence-based recommendations for vitamin D supplementation in Soldiers who often experience musculoskeletal disorders and immune dysfunction impacting physical performance and military readiness. The investigation is designed to address these specific aims: 1) explore vitamin D status in 105 Service Members to determine common symptoms associated with deficiency; 2) examine the effect of vitamin D levels on gene expression from select genes known to influence metabolism, bone density, and immune function; and 3) evaluate changes in gene expression between groups receiving high or low supplementation, and compare to healthy controls. Follow-up at 15 months will evaluate circulating vitamin D.
Primary Outcome
Serum measure of 25(OH) at baseline, 3 months, and 15 months
Interventions
- DIETARY_SUPPLEMENT Vitamin D3
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 131 participants |
| Start Date | 2016-01 |
| Est. Completion | 2018-06-29 |
| Phase | NA |
What the finished NCT02954549 record still lists
NCT02954549 is an interventional study that assigns participants to a tested intervention. The registered 131 participants enrollment target is mid-sized for trials with a published cap, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (91% lower).
The record links to 0 conditions, and to 1 intervention - of which Vitamin D3 is the first listed.
NCT02954549 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT02954549 about?
NCT02954549 is a clinical study titled "Vitamin D Supplementation in Warfighters". A genomics-based approach will target specific genes that may explain the response in biomarkers and symptoms before and after supplementation. One objective is to generate evidence-based recommendations for vitamin D supplementation in Soldiers who often experience musculoskeletal disorders and imm...
What is the current status of trial NCT02954549?
This trial is currently completed. It is a NA study. The enrollment target is 131 participants. The study started on 2016-01. Estimated completion is 2018-06-29.
What interventions are being tested in trial NCT02954549?
The interventions under investigation include: Vitamin D3 (DIETARY_SUPPLEMENT).
Who is sponsoring clinical trial NCT02954549?
This trial is sponsored by Madigan Army Medical Center, which has 22 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT02954549's enrollment target sits among peer trials
131 732nd of 2000 higher than 1,268 of 2,000 other NA trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other NA trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source ClinicalTrials.gov registry export · 2026-08-08
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