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Clinical Trial Details

Vitamin D Use in Advanced Cancer

Randomized, Double-Blind, Phase II Trial of Vitamin D Supplementation in Participants With Previously Untreated Metastatic Colorectal Cancer.


Previous small studies have shown that there may be a relationship between colon cancer coming back and the use of Vitamin D. This study split participants into two groups. One will receive Vitamin D and the other will receive placebo to try to confirm if this is true.

IRB Protocol Number
DFCI 11-436
Principal Investigator(s)
Charles Catcher, MD

Clinical Trial Categories

  • Colorectal Cancer
National Cancer Institute
Barbara Beauchemin, RN, BSN at 603-224-2556
How to Participate

Inclusion Criteria:

  • For locally advanced or metastatic colon or rectal cancer.

Exclusion Criteria:

  • Patients who had prior chemotherapy with curative intent are eligible IF the last does of chemotheraphy was at least 12 months before the recurrent disease was found;
  • Patients cannot take more than 2,000 of Vitamin D per day prior to enrollment.



  • Payson Center for Cancer Care
    250 Pleasant Street
    Concord, NH 03301
    Main: 603-230-6000