Trial Parameters
Brief 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.
Eligibility 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