Vitamin D Homeostasis in Sarcoidosis
Key facts
- Where
- Dallas, United StatesSee the site
- Phase
- Phase 4
Where in United States
- University of Texas Southwestern Medical Center, and Parkland Health and Hospital SystemDallas, United StatesContact: Connie Hsia, MD (principal investigator)Taking people
Questions to ask the study team
- How often do I need to come in, and for how long each time?
- Are travel costs paid?
- Can I keep my own doctor?
- What happens if I want to stop?
Contact the study team: see the registry record → Contacts and Locations
Print a page for my doctorTrial details
- Who runs it
- University of Texas Southwestern Medical Center
- Trial code
- NCT03621553
- Record updated
- 3 September 2026
- Original description
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.Read full original descriptionShow less
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.
Inclusion: Stable medical condition defined as no hospitalization or emergency room visit in the previous 3 months; No evidence of active pulmonary or systemic infection; No other active inflammatory disease,; No active malignancy; Normal serum ionized calcium level.
Exclusion: Hospitalization or emergency room visit in the previous 3 months; Evidence of active pulmonary or systemic infection; Evidence of active other inflammatory disease; Evidence of active malignancy; Elevated serum ionized calcium level.