Vitamin D Homeostasis in Sarcoidosis
Public ClinicalTrials.gov record NCT03621553. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Study identification
- NCT ID
- NCT03621553
- Recruitment status
- Recruiting
- Study type
- Interventional
- Phase
- Phase 4
- Lead sponsor
- University of Texas Southwestern Medical Center
- Other
- Enrollment
- 90 participants
Conditions and interventions
Conditions
Interventions
- Calcium Citrate with Vitamin D2 Drug
- Ergocalciferol Drug
- Placebo Drug
Drug
Eligibility (public fields only)
- Age range
- 21 Years and older
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Jun 30, 2010
- Primary completion
- Jan 31, 2026
- Completion
- Dec 29, 2026
- Last update posted
- Jan 1, 2026
2010 – 2026
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| University of Texas Southwestern Medical Center, and Parkland Health and Hospital System | Dallas | Texas | 75390-9034 | Recruiting |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT03621553, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Jan 1, 2026 · Synced May 18, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT03621553 live on ClinicalTrials.gov.