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Evaluation of Calcium and Vitamin D Supplementation During Marine Corps Training

NCT02636348 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 380

Last updated 2016-10-28

No results posted yet for this study

Summary

The primary objective of this randomized, double-blind, placebo-controlled trial is to determine the efficacy and effectiveness of Ca and vitamin D supplementation provided daily throughout Marine Corps recruit training on maintenance of PTH and indices of bone strength in Marine Corps recruits. The investigators hypothesize that Ca+D will prevent elevations in PTH and result in greater increases in indices of bone strength compared to placebo.

Conditions

  • Nutrition Status
  • Bone Health

Interventions

DIETARY_SUPPLEMENT

Calcium/Vitamin D

2000 mg calcium and 1000 IU vitamin D administered daily as 8 pills or 2 fortified snack bars.

DIETARY_SUPPLEMENT

Placebo

Administered daily as 8 placebo pills or 2 unfortified snack bars.

Sponsors & Collaborators

  • Uniformed Services University of the Health Sciences

    collaborator FED

  • United States Army Research Institute of Environmental Medicine

    lead FED

Principal Investigators

  • Erin Gaffney-Stomberg, Ph.D., R.D. · United States Army Research Institute of Environmental Medicine

Study Design

Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
QUADRUPLE
Model
PARALLEL

Eligibility

Min Age
17 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2015-07-31
Primary Completion
2016-04-30
Completion
2016-10-31

Countries

  • United States

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT02636348 on ClinicalTrials.gov