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NCT00476346 · ClinicalTrials.gov registry record · NA
Calcium and Vitamin D Supplementation Decreases Incidence of Stress Fractures in Female Navy Recruits
A NA study, sponsored by Creighton University.
- Completed
- Registry status
- NA
- Development phase
- 5,201
- Enrollment target
NCT00476346: Completed NA study, sponsored by Creighton University.
NCT00476346 is a NA study that has completed, run by Creighton University. The registered enrollment target is 5,201 participants, above the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (270% higher). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT00476346, a NA study, has completed, sponsored by Creighton University.
- COMPLETED
- Registry status
- NA
- Development phase
- 5,201 participants
- Enrollment target
Study Summary
We conducted a double-blind, placebo-controlled randomized clinical trial of calcium and vitamin D supplementation in 5201 female Naval recruits. During 8 weeks of basic training, supplementation with 2000 mg calcium and 800 IU vitamin D/day decreased incidence of stress fracture by 25%. The hypothesis was: Supplementation with calcium 2000 mg/d and vitamin D 800 IU/d will significantly reduce the incidence of stress fractures in female Navy recruits during 8 weeks of basic training.
Interventions
- DIETARY_SUPPLEMENT Calcium & Vitamin D
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 5,201 participants |
| Start Date | 2002-05 |
| Est. Completion | 2006-03 |
| Phase | NA |
What the finished NCT00476346 record still lists
NCT00476346 is an interventional study that assigns participants to a tested intervention. Its 5,201 participants enrollment target places it among the larger protocols in the corpus, above the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (270% higher).
The record links to 0 conditions, and to 1 intervention - of which Calcium & Vitamin D is the first listed.
NCT00476346 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT00476346 about?
NCT00476346 is a clinical study titled "Calcium and Vitamin D Supplementation Decreases Incidence of Stress Fractures in Female Navy Recruits". We conducted a double-blind, placebo-controlled randomized clinical trial of calcium and vitamin D supplementation in 5201 female Naval recruits. During 8 weeks of basic training, supplementation with 2000 mg calcium and 800 IU vitamin D/day decreased incidence of stress fracture by 25%. The hypothe...
What is the current status of trial NCT00476346?
This trial is currently completed. It is a NA study. The enrollment target is 5,201 participants. The study started on 2002-05. Estimated completion is 2006-03.
What interventions are being tested in trial NCT00476346?
The interventions under investigation include: Calcium & Vitamin D (DIETARY_SUPPLEMENT).
Who is sponsoring clinical trial NCT00476346?
This trial is sponsored by Creighton University, which has 98 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT00476346's enrollment target sits among peer trials
5,201 25th of 2000 higher than 1,976 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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