Current and ongoing randomized trials in heart failure and left ventricular dysfunction

Several large randomized trials have been completed recently and provided valuable information on the effects of various interventions in heart failure and left ventricular dysfunction. A review of ongoing randomized trials showed that there were 19 major trials addressing the effect of treatments on exercise tolerance, morbidity or mortality. Although it is hoped that these trials will answer many questions, they will also raise additional questions. Therefore, these remaining questions will need to be answered by future clinical trials.