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NCT00306774 · ClinicalTrials.gov registry record · Phase 2
Vitamin D to Slow Progression of Knee Osteoarthritis
A Phase 2 study of Osteoarthritis, Knee, sponsored by Tufts Medical Center.
- Completed
- Registry status
- Phase 2
- Development phase
- 146
- Enrollment target
- 1
- Study location
NCT00306774: Completed Phase 2 study of Osteoarthritis, Knee, sponsored by Tufts Medical Center.
NCT00306774 is a Phase 2 study of Osteoarthritis, Knee that has completed, run by Tufts Medical Center. The registered enrollment target is 146 participants, below the 496-participant average among 112 other Osteoarthritis, Knee trials with a reported enrollment target (71% lower). The trial reports 1 study location across 1 state. According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT00306774, a Phase 2 study of Osteoarthritis, Knee, has completed, sponsored by Tufts Medical Center.
- COMPLETED
- Registry status
- Phase 2
- Development phase
- 146 participants
- Enrollment target
- 1
- Study location
Study Summary
Knee osteoarthritis (OA) is a common and disabling health problem in older adults and for which there is no cure. The purpose of this study is to determine the effects of vitamin D on knee OA symptoms and physical function in adults aged 45 years and older.
Conditions Studied
Interventions
- DIETARY_SUPPLEMENT Placebo
- DIETARY_SUPPLEMENT Vitamin D (cholecalciferol)
Study Locations (1)
Massachusetts
- Tufts Medical Center, Division of Rheumatology - Boston
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 146 participants |
| Start Date | 2006-03 |
| Est. Completion | 2009-06 |
| Phase | Phase 2 |
What the finished NCT00306774 record still lists
NCT00306774 is an interventional study that assigns participants to a tested intervention. The registered 146 participants enrollment target is mid-sized for trials with a published cap, below the 496-participant average among 112 other Osteoarthritis, Knee trials with a reported enrollment target (71% lower).
The record links to 1 condition, with Osteoarthritis, Knee appearing as the primary indexed condition, and to 2 interventions - of which Placebo is the first listed.
NCT00306774 reports a single indexed study location in Massachusetts.
Frequently Asked Questions
What is clinical trial NCT00306774 about?
NCT00306774 is a clinical study titled "Vitamin D to Slow Progression of Knee Osteoarthritis". Knee osteoarthritis (OA) is a common and disabling health problem in older adults and for which there is no cure. The purpose of this study is to determine the effects of vitamin D on knee OA symptoms and physical function in adults aged 45 years and older.
What is the current status of trial NCT00306774?
This trial is currently completed. It is a Phase 2 study. The enrollment target is 146 participants. The study started on 2006-03. Estimated completion is 2009-06.
What conditions does trial NCT00306774 study?
This clinical trial studies the following conditions: Osteoarthritis, Knee.
What interventions are being tested in trial NCT00306774?
The interventions under investigation include: Placebo (DIETARY_SUPPLEMENT), Vitamin D (cholecalciferol) (DIETARY_SUPPLEMENT).
Who is sponsoring clinical trial NCT00306774?
This trial is sponsored by Tufts Medical Center, which has 169 total clinical trials registered on ClinicalTrials.gov.
Where is trial NCT00306774 being conducted?
This trial has 1 study location across Massachusetts. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.
Learn More About Clinical Trials
Similar trials for Osteoarthritis, Knee
Matched on the same primary condition, ranked to surface studies in the same phase first, then by recruiting status, no relevance scoring or editorial curation.
Where NCT00306774's enrollment target sits among peer trials
146 49th of 112 higher than 64 of 112 other Osteoarthritis, Knee trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other Osteoarthritis, Knee 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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