Could vitamin d ease sarcoidosis? new trial investigates
NCT ID NCT03621553
First seen Jan 07, 2026 · Last updated Jun 19, 2026 · Updated 20 times
Summary
This study looks at whether vitamin D supplements can help people with sarcoidosis who have low vitamin D levels. Researchers will give some participants vitamin D2 and others a placebo, then measure changes in lung function and quality of life. The goal is to see if correcting vitamin D deficiency improves sarcoidosis symptoms.
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This is a summary of
the original study
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Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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Contacts and locations
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Study contacts
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Contact
Phone: •••-•••-•••• Email: •••••@•••••
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Contact
Phone: •••-•••-•••• Email: •••••@•••••
Locations
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University of Texas Southwestern Medical Center, and Parkland Health and Hospital System
RECRUITINGDallas, Texas, 75390-9034, United States
Contact
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What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
Vitamin D2 (ergocalciferol)
What this could lead to
If it works, this could show that correcting vitamin D insufficiency improves lung function and quality of life in sarcoidosis patients.
What could go wrong
This is a small, early-phase trial with only 90 participants. The placebo group may also show improvement, and results may not apply to all sarcoidosis patients.
Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.