Vitamin d trial aims to strengthen immune system in black men with prostate cancer
NCT ID NCT07598032
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This phase 3 trial tests whether daily vitamin D supplements can improve immune function and quality of life in Black/West African men with prostate cancer who have low vitamin D levels. Researchers will compare men with localized disease to those with advanced cancer, tracking immune markers and cancer progression over up to 3 years. The study aims to show that correcting vitamin D deficiency may help slow the disease and improve well-being.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- Active substance
- vitamin D (cholecalciferol) 2000 IU daily
- What this could lead to
- If it works, this could show that correcting vitamin D deficiency improves immune function and quality of life, and may help slow prostate cancer progression in Black/West African men.
- What could go wrong
- This is an early-stage trial with only 200 participants, so results may not apply to all men. Vitamin D supplements may not significantly affect cancer outcomes, and long-term benefits are uncertain.
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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.
Contacts and locations
Locations
-
University of Ilorin Teaching Hospital
Ilorin, Kwara State, 240001, Nigeria
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