Vitamin D Supplementation in Warfighters
NCT02954549 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 131
Last updated 2019-05-10
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.
Conditions
- Vitamin D Deficiency Disease
Interventions
- DIETARY_SUPPLEMENT
-
Vitamin D3
As in Arms
Sponsors & Collaborators
-
TriService Nursing Research Program
collaborator OTHER -
Madigan Army Medical Center
lead FED
Principal Investigators
-
Mary S McCarthy, PhD · Madigan Army Medical Center
Study Design
- Allocation
- RANDOMIZED
- Purpose
- TREATMENT
- Masking
- TRIPLE
- Model
- PARALLEL
Eligibility
- Min Age
- 18 Years
- Sex
- ALL
- Healthy Volunteers
- Yes
Timeline & Regulatory
- Start
- 2016-01-31
- Primary Completion
- 2018-06-29
- Completion
- 2018-06-29
Countries
- United States
Study Locations
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