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Find 452 clinical trials for heart disease near Boston, Massachusetts. Connect with research centers in your area.
Showing 181-200 of 452 trials
NCT01807897
The purpose of this study is to compare three treatment modalities for central, or mixed obstructive and central, sleep apnea in patients with chronic heart failure and reduced ejection fraction. The modalities to be tested are nocturnal supplemental oxygen (NSO) and continuous positive airway pressure (CPAP). The main outcome measures will be left ventricular ejection fraction on echocardiogram and peak oxygen consumption on cardiopulmonary exercise testing.
NCT03003780
This is a developmental project with two phases. The first phase will adapt an existing web-based intervention to incorporate mind-body exercises to develop a multi-modal intervention to promote physical activity in patients with COPD and HF. The second phase will pilot test this new intervention in a longitudinal study (subjects randomized to intervention or usual care).
NCT00303498
The aim of this study was to determine whether long-term (≥ 6 months at the target dose) blockade of ETA receptors using sitaxsentan showed functional benefit in subjects with chronic Heart Failure and an Left Ventricular Ejection Fraction ≥50%.