At a glance
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Effects of High-Dose Vitamin D on Circulating Vitamin D Levels and Breast Density in Postmenopausal Women at High Risk for Breast Cancer Development
In Brief
A Phase 2 clinical trial evaluating Cholecalciferol and Placebo capsule for Breast Cancer. Completed, enrolled 20 participants across 1 site.
Detailed Summary
This is a phase II study which will enroll 20 postmenopausal women who are at high risk for breast cancer development. The goal is to determine whether a one-year intervention of high-dose vitamin D at 2 different doses (20,000 IU weekly or 30,000 IU weekly) will increase circulating blood levels of vitamin D and to obtain preliminary data on the biologic effects of vitamin D for breast cancer prevention.
Study Details
Timeline
Interventions
Cholecalciferol is a vitamin D3. Vitamin D is important for the absorption of calcium from the stomach and for the functioning of calcium in the body. Cholecalciferol is used to treat or prevent many conditions caused by a lack of vitamin D. Cholecalciferol will be available in gel capsule form at 10,000 IU (0.25 mg cholecalciferol) each.
Matching placebo capsules