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NCT00421408 · ClinicalTrials.gov registry record · Phase 1
The Effect of Protein Supplementation on Bone Health in Healthy Older Men and Women
A Phase 1 study, sponsored by Yale University.
- Completed
- Registry status
- Phase 1
- Development phase
- 208
- Enrollment target
NCT00421408: Completed Phase 1 study, sponsored by Yale University.
NCT00421408 is a Phase 1 study that has completed, run by Yale University. The registered enrollment target is 208 participants, above the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target (247% higher). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT00421408, a Phase 1 study, has completed, sponsored by Yale University.
- COMPLETED
- Registry status
- Phase 1
- Development phase
- 208 participants
- Enrollment target
Study Summary
Women and men consuming a low protein diet may be at risk for bone loss. The purpose of this study is to determine whether a daily protein supplement will improve bone health among healthy older adults.
Primary Outcome
There is no absolute normative range for bone mineral density. Population norms have been established for specific races and men and women for the hip based on data collected by National Health Examination Nutrition Surveys (NHANES) and for the spine based largely on data collected by individual manufacturers. Values within 1 standard deviation of the population mean are generally considered normal. Values below 1 standard deviation from the population mean are generally considered to reflect re
Interventions
- DIETARY_SUPPLEMENT Placebo
- DIETARY_SUPPLEMENT Whey protein supplement
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 208 participants |
| Start Date | 2007-02 |
| Est. Completion | 2012-09 |
| Phase | Phase 1 |
What the finished NCT00421408 record still lists
NCT00421408 is an interventional study that assigns participants to a tested intervention. The registered 208 participants enrollment target is mid-sized for trials with a published cap, above the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target (247% higher).
The record links to 0 conditions, and to 2 interventions - of which Placebo is the first listed.
NCT00421408 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT00421408 about?
NCT00421408 is a clinical study titled "The Effect of Protein Supplementation on Bone Health in Healthy Older Men and Women". Women and men consuming a low protein diet may be at risk for bone loss. The purpose of this study is to determine whether a daily protein supplement will improve bone health among healthy older adults.
What is the current status of trial NCT00421408?
This trial is currently completed. It is a Phase 1 study. The enrollment target is 208 participants. The study started on 2007-02. Estimated completion is 2012-09.
What interventions are being tested in trial NCT00421408?
The interventions under investigation include: Placebo (DIETARY_SUPPLEMENT), Whey protein supplement (DIETARY_SUPPLEMENT).
Who is sponsoring clinical trial NCT00421408?
This trial is sponsored by Yale University, which has 1,492 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT00421408's enrollment target sits among peer trials
208 250th of 2000 higher than 1,749 of 2,000 other Phase 1 trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other Phase 1 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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