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Calcium/Vitamin D, Biomarkers & Colon Polyp Prevention


Calcium/Vitamin D, Biomarkers & Colon Polyp Prevention




We have developed a set of biomarkers of risk for colon cancer, and in this study we will test 1) whether or not calcium and/or vitamin D supplementation can favorably affect these biomarkers in persons who are at higher than average risk for colon cancer (ie, have already undergone the removal of colon growths, called adenomatous polyps, which are known to be precursors to developing colon cancer), and 2) whether effects on the biomarkers predict who will get new colon polyps or not.

Study Status: Active, not recruiting


Condition Intervention Phase
Colorectal Adenomatous Polyps Drug: Calcium
Drug: Vitamin D3
Drug: Calcium and vitamin D combined
Other: Placebo
Phase 3

Verified by Emory University November, 2013

Sponsored by: Emory University
Information provided by: Emory University identifier: NCT00399607

Study Type: Interventional

Study Design: Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Factorial Assignment, Masking: Double Blind (Subject, Caregiver, Investigator), Primary Purpose: Prevention

Cleveland Clinic Foundation
Cleveland, Ohio 44195
United States

Roberd M Bostick, MD, MPH., Principal Investigator

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