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Study identifier: NCT05045066 Synced from ClinicalTrials.gov · July 29, 2026
● Recruiting

Immunological Effects of Vitamin D Replacement Among Black/African American Prostate Cancer Patients

Condition: Localized Prostate Carcinoma · Stage IV Prostate Cancer AJCC v8 · Locally Recurrent Prostate Carcinoma  ·  Sponsor: Mayo Clinic

PhaseEARLY_Phase 1
Planned participants220
Who can joinMale, 18 Years to no upper limit
Healthy volunteersNo

About this study

This early phase I is to find out how common vitamin D insufficiency is among African American patients with a history of prostate cancer that has not spread to other parts of the body (localized) or has spread to other places in the body (metastatic) and how vitamin D insufficiency affects the immune system. This study also aims to find out if replacing vitamin D results in normalization of the immune function. Information from this study may benefit prostate cancer patients by identifying vitamin D insufficiency which in several studies had been found to contribute to more aggressive prostate cancers.

This description comes directly from the study's public registry record.

Talk to the study team

Clinical Trials Referral Office  ·  855-776-0015  ·  mayocliniccancerstudies@mayo.edu

Cancer Center Clinical Trials  ·  866-273-4681 or 507-266-4000

Always discuss trial participation with your own doctor first.

Locations (2)

Mayo Clinic in ArizonaScottsdale, Arizona, United StatesRecruiting
Mayo Clinic in FloridaJacksonville, Florida, United StatesRecruiting

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Source record: clinicaltrials.gov/study/NCT05045066