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Find 535 clinical trials for heart disease near Boston, Massachusetts. Connect with research centers in your area.
Showing 361-380 of 535 trials
NCT00869869
The purpose of this study is to determine whether melatonin can improve sleep, quality of life and markers of heart failure in patients with heart failure.
NCT00683696
The EchoCRT trial evaluates the effects of Cardiac Resynchronization Therapy (CRT) on mortality and morbidity of subjects with heart failure due to left ventricular systolic dysfunction, already receiving optimized HF medication, with a narrow QRS width (\< 130 ms) and echocardiographic evidence of ventricular dyssynchrony.