Heart Failure Clinical Trial
Official title:
Double-Blind, Placebo-Controlled Trial of Vitamin D3 (Cholecalciferol) Supplementation for Heart Failure Patients
The purpose of this study is to determine if treatment with vitamin D3 of 10,000 International Units (IU) daily in vitamin D deficient patients for 6 months will improve B type natriuretic peptide (BNP), a marker of heart function, compared to placebo. The investigators also aim to determine if vitamin D helps cardiopulmonary function as evaluated by cardiopulmonary exercise test (CPX), laboratory values, strength, and quality of life in patients with stable congestive heart failure (Class II or III).
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