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NCT03621553 · ClinicalTrials.gov registry record · Phase 4
Vitamin D Homeostasis in Sarcoidosis
A Phase 4 study of Sarcoidosis and Vitamin D Insufficiency, sponsored by University of Texas Southwestern Medical Center.
- Recruiting
- Registry status
- Phase 4
- Development phase
- 90
- Enrollment target
- 1
- Study location
NCT03621553: Recruiting Phase 4 study of Sarcoidosis and Vitamin D Insufficiency, sponsored by University of Texas Southwestern Medical Center.
NCT03621553 is a Phase 4 study of Sarcoidosis and Vitamin D Insufficiency that is actively recruiting participants, run by University of Texas Southwestern Medical Center. The registered enrollment target is 90 participants, below the 2,165-participant average among 21 other Sarcoidosis trials with a reported enrollment target (96% lower). The trial reports 1 study location across 1 state. According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT03621553, a Phase 4 study of Sarcoidosis and Vitamin D Insufficiency, is actively recruiting participants, sponsored by University of Texas Southwestern Medical Center.
- RECRUITING
- Registry status
- Phase 4
- Development phase
- 90 participants
- Enrollment target
- 1
- Study location
Study Summary
This study evaluates the relationship between vitamin-D status and severity of sarcoidosis, and the effects of vitamin-D repletion in vitamin-D insufficient patients with sarcoidosis. Half the patients with sarcoidosis who are vitamin-D insufficient will receive standard vitamin-D supplementation via standard regimen while the other half will receive a placebo. Sarcoidosis patients who are vitamin-D sufficient will also act as controls.
Primary Outcome
(Measurement at end of study)/(measurement at enrollment)
Conditions Studied
Interventions
- DRUG Placebo
- DRUG Ergocalciferol
- DRUG Calcium Citrate with Vitamin D2
Study Locations (1)
Texas
- University of Texas Southwestern Medical Center, and Parkland Health and Hospital System - Dallas
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 90 participants |
| Start Date | 2010-07-01 |
| Est. Completion | 2026-12-30 |
| Phase | Phase 4 |
What NCT03621553 shows while recruiting
NCT03621553 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 90 participants, a relatively small participant target, below the 2,165-participant average among 21 other Sarcoidosis trials with a reported enrollment target (96% lower).
The record links to 2 conditions, with Sarcoidosis appearing as the primary indexed condition, and to 3 interventions - of which Placebo is the first listed.
NCT03621553 reports a single indexed study location in Texas.
Frequently Asked Questions
What is clinical trial NCT03621553 about?
NCT03621553 is a clinical study titled "Vitamin D Homeostasis in Sarcoidosis". This study evaluates the relationship between vitamin-D status and severity of sarcoidosis, and the effects of vitamin-D repletion in vitamin-D insufficient patients with sarcoidosis. Half the patients with sarcoidosis who are vitamin-D insufficient will receive standard vitamin-D supplementation vi...
What is the current status of trial NCT03621553?
This trial is currently recruiting. It is a Phase 4 study. The enrollment target is 90 participants. The study started on 2010-07-01. Estimated completion is 2026-12-30.
What conditions does trial NCT03621553 study?
This clinical trial studies the following conditions: Sarcoidosis, Vitamin D Insufficiency.
What interventions are being tested in trial NCT03621553?
The interventions under investigation include: Placebo (DRUG), Ergocalciferol (DRUG), Calcium Citrate with Vitamin D2 (DRUG).
Who is sponsoring clinical trial NCT03621553?
This trial is sponsored by University of Texas Southwestern Medical Center, which has 837 total clinical trials registered on ClinicalTrials.gov.
Where is trial NCT03621553 being conducted?
This trial has 1 study location across Texas. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.
Learn More About Clinical Trials
Similar trials for Sarcoidosis
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 NCT03621553's enrollment target sits among peer trials
90 14th of 21 higher than 8 of 21 other Sarcoidosis trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other Sarcoidosis 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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