Protocol Number: 03-H-0217
Patients 21 years of age and older with heart failure and type II diabetes or glucose intolerance, or both, may be eligible for this study. Patients must be stable on current therapy for heart failure and must not have any planned surgeries for coronary artery disease. Candidates will be admitted to the NIH Clinical Center for from 2 to 7 days for screening procedures, which include a medical history and physical examination, blood and urine tests, electrocardiogram (ECG), chest x-ray, magnetic resonance imaging (MRI), exercise testing, and echocardiography (ultrasound test of the heart). Participants will be randomly assigned to receive either rosiglitazone or placebo (an identical-looking pill with no active ingredient). They will take one tablet a day for the first month, one tablet twice a day for the second month, and then two tablets twice a day from the third month to the end of the study at 6 months. During the treatment period, patients will have a history, physical examination, and blood tests every 4 weeks, exercise testing and echocardiography at 3 and 6 months, and urinalysis, electrocardiogram and MRI at 6 months. To check for fluid accumulation in the legs or lungs, patients will report their weight and symptoms every 2 weeks throughout the study. After the 6-month treatment period, patients will be put back on the diabetes medicines they were taking before the study. Their physicians will be notified of possible modifications in treatment for maintaining optimum glucose tolerance. Six months after completing treatment (one year after beginning the study), patients will return to the Clinical Center for blood tests to measure the long-term effects of rosiglitazone and to evaluate progress. They will then be invited to return to the clinic for annual checkups, if possible, or for yearly follow-up by mail or telephone to review their health status.
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