Differences in Immunological Effects of Vitamin D Replacement Among African American Prostate Cancer Patients With Localized Versus Metastatic Disease

Overview

About this study

The aims of this study are to evaluate the prevalence of vitamin D insufficiency among B/AA prostate cancer patients and to determine the deficits in immunity associated with vitamin D insufficiency. Also, we will evaluate whether the peripheral blood immune cell function is different in B/AA prostate cancer patients with metastatic disease as compared with those with localized disease.

Participation eligibility

Participant eligibility includes age, gender, type and stage of disease, and previous treatments or health concerns. Guidelines differ from study to study, and identify who can or cannot participate. There is no guarantee that every individual who qualifies and wants to participate in a trial will be enrolled. Contact the study team to discuss study eligibility and potential participation.

Inclusion Criteria:

  • African American males.
  • Age ≥ 18 years.
  • Patients with a previous history of localized or locally recurrent metastatic prostate cancer.
  • Willing to travel to Mayo Clinic for baseline and 8 weeks visit for blood collection, if eligible.

Exclusion Criteria: 

  • Known hypersensitivity to vitamin D.
  • End stage renal failure on dialysis.
  • Liver cirrhosis.
  • Currently taking a vitamin D or multivitamin supplement, that has more than 400 IU/10mcg of vitamin D daily for the past month.
  • Legal inability or restricted legal ability, medical or psychological conditions not allowing proper study completion or informed consent signature.

Note: Other protocol defined Inclusion/Exclusion Criteria may apply.

Eligibility last updated 9/1/23. Questions regarding updates should be directed to the study team contact.

Participating Mayo Clinic locations

Study statuses change often. Please contact the study team for the most up-to-date information regarding possible participation.

Mayo Clinic Location Status Contact

Jacksonville, Fla.

Mayo Clinic principal investigator

Gerardo Colon-Otero, M.D.

Open for enrollment

Contact information:

Cancer Center Clinical Trials Referral Office

855-776-0015

Scottsdale/Phoenix, Ariz.

Mayo Clinic principal investigator

Cassandra Moore, M.D.

Open for enrollment

Contact information:

Cancer Center Clinical Trials Referral Office

(855) 776-0015

More information

Publications

Publications are currently not available

Additional contact information

Cancer-related trials contact form

Phone: 855-776-0015 (toll-free)

International patient clinical studies questions