Medical Information Only. Always consult your healthcare provider before enrolling in any clinical trial.
NCT00423358 · ClinicalTrials.gov registry record · NA
Treatment of Hypovitaminosis D in Rheumatoid Arthritis
A NA study of Rheumatoid Arthritis and Hypovitaminosis D, sponsored by University of Wisconsin, Madison.
- Completed
- Registry status
- NA
- Development phase
- 22
- Enrollment target
- 1
- Study location
NCT00423358: Completed NA study of Rheumatoid Arthritis and Hypovitaminosis D, sponsored by University of Wisconsin, Madison.
NCT00423358 is a NA study of Rheumatoid Arthritis and Hypovitaminosis D that has completed, run by University of Wisconsin, Madison. The registered enrollment target is 22 participants, below the 4,691-participant average among 197 other Rheumatoid Arthritis trials with a reported enrollment target (100% lower). The trial reports 1 study location across 1 state. According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT00423358, a NA study of Rheumatoid Arthritis and Hypovitaminosis D, has completed, sponsored by University of Wisconsin, Madison.
- COMPLETED
- Registry status
- NA
- Development phase
- 22 participants
- Enrollment target
- 1
- Study location
Study Summary
This study recruits individuals with rheumatoid arthritis (RA) and low vitamin D concentrations. Subjects are dosed with vitamin D or placebo for one year. Primary outcome is change in bone turnover markers, additionally, bone mineral density and parameters of RA status are evaluated throughout the study.
Primary Outcome
Serum parathyroid hormone level
Conditions Studied
Interventions
- DIETARY_SUPPLEMENT Vitamin D
- DIETARY_SUPPLEMENT placebo
Study Locations (1)
Wisconsin
- University of Wisconsin - Madison
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 22 participants |
| Start Date | 2005-02 |
| Est. Completion | 2009-02 |
| Phase | NA |
What the finished NCT00423358 record still lists
NCT00423358 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 22 participants, a relatively small participant target, below the 4,691-participant average among 197 other Rheumatoid Arthritis trials with a reported enrollment target (100% lower).
The record links to 2 conditions, with Rheumatoid Arthritis appearing as the primary indexed condition, and to 2 interventions - of which Vitamin D is the first listed.
NCT00423358 reports a single indexed study location in Wisconsin.
Frequently Asked Questions
What is clinical trial NCT00423358 about?
NCT00423358 is a clinical study titled "Treatment of Hypovitaminosis D in Rheumatoid Arthritis". This study recruits individuals with rheumatoid arthritis (RA) and low vitamin D concentrations. Subjects are dosed with vitamin D or placebo for one year. Primary outcome is change in bone turnover markers, additionally, bone mineral density and parameters of RA status are evaluated throughout the ...
What is the current status of trial NCT00423358?
This trial is currently completed. It is a NA study. The enrollment target is 22 participants. The study started on 2005-02. Estimated completion is 2009-02.
What conditions does trial NCT00423358 study?
This clinical trial studies the following conditions: Rheumatoid Arthritis, Hypovitaminosis D.
What interventions are being tested in trial NCT00423358?
The interventions under investigation include: Vitamin D (DIETARY_SUPPLEMENT), placebo (DIETARY_SUPPLEMENT).
Who is sponsoring clinical trial NCT00423358?
This trial is sponsored by University of Wisconsin, Madison, which has 1,039 total clinical trials registered on ClinicalTrials.gov.
Where is trial NCT00423358 being conducted?
This trial has 1 study location across Wisconsin. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.
Learn More About Clinical Trials
Similar trials for Rheumatoid Arthritis
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 NCT00423358's enrollment target sits among peer trials
22 175th of 197 higher than 23 of 197 other Rheumatoid Arthritis trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other Rheumatoid Arthritis 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
-
EMPHASYS Cup Positioning in THA With Non-Invasive Navigation (Velys Hip Navigation (VHN))
RECRUITING · NA
-
Creating Health Course Study for People With Rheumatological Conditions
RECRUITING · NA
-
Physica System Total Knee Replacement Registry Study
RECRUITING · NA
-
Targeted Remotely-delivered Anti-inflammatory Interventions With Exercise for Rheumatoid Arthritis
RECRUITING · NA
-
Improving Hypertension Control in Rheumatoid Arthritis
RECRUITING · NA
-
Effect of Anti-inflammatory Diet in Rheumatoid Arthritis
RECRUITING · NA
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
- NCT02508038 · 22 participants · Phase 1
Alpha/Beta CD19+ Depleted Haploidentical Transplantation + Zometa for Pediatric Hematologic Malignancies and Solid Tumors
- NCT03099356 · 22 participants · Phase 2
Cyclophosphamide and Sirolimus for the Treatment of Metastatic, RAI-refractory, Differentiated Thyroid Cancer
- NCT03676647 · 22 participants
Diagnostic DNA Methylation Signature in Diagnosing Thyroid Cancer After Fine-Needle Aspiration in Patients With Thyroid Nodules
- NCT04569591 · 22 participants · NA
DDAVP for Pituitary Adenoma
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