Medical Information Only. Always consult your healthcare provider before enrolling in any clinical trial.
NCT01199926 · ClinicalTrials.gov registry record · Phase 4
Effect of Vitamin D Supplementation on Muscle Mass and Function
A Phase 4 study, sponsored by Purdue University.
- Completed
- Registry status
- Phase 4
- Development phase
- 34
- Enrollment target
NCT01199926: Completed Phase 4 study, sponsored by Purdue University.
NCT01199926 is a Phase 4 study that has completed, run by Purdue University. The registered enrollment target is 34 participants, below the 518-participant average among 9,235 other Phase 4 trials with a reported enrollment target (93% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT01199926, a Phase 4 study, has completed, sponsored by Purdue University.
- COMPLETED
- Registry status
- Phase 4
- Development phase
- 34 participants
- Enrollment target
Study Summary
The study was designed to assess the effects of vitamin D supplementation during exercise training on body composition, muscle function, and glucose tolerance. The investigators hypothesis for these studies is that vitamin D supplementation enhances exercise-induced increases in strength and lean mass, potentially through enhancing insulin sensitivity and reducing inflammation.
Primary Outcome
The primary endpoint is the change in lean mass (kilograms) after the three month resistance exercise intervention.
Interventions
- DRUG Placebo
- DIETARY_SUPPLEMENT Vitamin D
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 34 participants |
| Start Date | 2008-08 |
| Est. Completion | 2010-02 |
| Phase | Phase 4 |
What the finished NCT01199926 record still lists
NCT01199926 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 34 participants, a relatively small participant target, below the 518-participant average among 9,235 other Phase 4 trials with a reported enrollment target (93% lower).
The record links to 0 conditions, and to 2 interventions - of which Placebo is the first listed.
NCT01199926 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT01199926 about?
NCT01199926 is a clinical study titled "Effect of Vitamin D Supplementation on Muscle Mass and Function". The study was designed to assess the effects of vitamin D supplementation during exercise training on body composition, muscle function, and glucose tolerance. The investigators hypothesis for these studies is that vitamin D supplementation enhances exercise-induced increases in strength and lean ma...
What is the current status of trial NCT01199926?
This trial is currently completed. It is a Phase 4 study. The enrollment target is 34 participants. The study started on 2008-08. Estimated completion is 2010-02.
What interventions are being tested in trial NCT01199926?
The interventions under investigation include: Placebo (DRUG), Vitamin D (DIETARY_SUPPLEMENT).
Who is sponsoring clinical trial NCT01199926?
This trial is sponsored by Purdue University, which has 141 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT01199926's enrollment target sits among peer trials
34 1520th of 2000 higher than 473 of 2,000 other Phase 4 trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other Phase 4 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
Nationwide trials with similar profiles
Cross-condition peers matched on enrollment target and registry start date, not the same-condition list above.
Similar enrollment target
- NCT02897063 · 34 participants · Phase 1
Effects of Midodrine and Droxidopa on Splanchnic Capacitance in Autonomic Failure
- NCT03906617 · 34 participants · Phase 4
Bupivacaine/Epinephrine +Dexamethasone vs. Liposomal Bupivacaine
- NCT03992378 · 34 participants · NA
Neuromodulation to Regulate Inflammation and Autonomic Imbalance in Sepsis
- NCT04047849 · 34 participants · Phase 4
Latency Antibiotics in Previable PPROM, 18 0/7- 22 6/7 WGA
Similar registry start date
- NCT05988463 · started 2027-01-01 · Phase 1
Dose-Escalation Study of Artesunate Patients With IPF
- NCT07219706 · started 2026-12-10 · NA
Dietary Fiber and Time Restricted Eating
- NCT02831335 · started 2026-12-01
Technical Development of Multi-Parametric Renocerebral MRI
- NCT05962346 · started 2026-12 · NA
Fetal Endoscopic Tracheal Occlusion for Congenital Diaphragmatic Hernia