Evaluating vitamin D's role in sarcoidosis

Vitamin D Homeostasis in Sarcoidosis

Phase 4 Interventional University of Texas Southwestern Medical Center · NCT03621553

This study is testing if giving vitamin D to people with sarcoidosis who have low levels of it can help reduce their symptoms compared to those who get a placebo.

Quick facts

PhasePhase 4
Study typeInterventional
Enrollment90 (estimated)
Ages21 Years and up
SexAll
SponsorUniversity of Texas Southwestern Medical Center Academic / other
Locations1 site (Dallas, Texas)
Trial IDNCT03621553 on ClinicalTrials.gov

What this trial studies

This study investigates how vitamin D levels affect the severity of sarcoidosis and the impact of vitamin D supplementation in patients who are deficient. Participants with sarcoidosis and low vitamin D will be divided into two groups: one receiving standard vitamin D supplementation and the other receiving a placebo. Additionally, patients with sufficient vitamin D levels will serve as control subjects. The study aims to clarify the relationship between vitamin D status and sarcoidosis inflammation.

Who should consider this trial

Good fit: Ideal candidates include patients diagnosed with sarcoidosis who are also vitamin D insufficient.

Not a fit: Patients with active infections, other inflammatory diseases, or malignancies may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved management of sarcoidosis through vitamin D repletion.

How similar studies have performed: Other studies have suggested a potential link between vitamin D levels and inflammatory conditions, but this specific approach is novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* 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 Criteria:

* 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

Where this trial is running

Dallas, Texas

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions SarcoidosisVitamin D Insufficiency
Last reviewed 2026-06-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.