Randomized controlled trials of therapies for the primary andsecondary prevention of cardiovascular disease increasinglyare powered to study overall mortality. The interventions frequentlytreat asymptomatic risk factors among high-risk patients andhave a diverse spectrum of potential adverse effects. Thus,medications such as clofibrate or encainide that successfullyalter surrogate end points but increase the rate of death areof little clinical interest. Many believe that a new preventivetherapy for cardiovascular disease should be used sparingly,if at all, until clinical trials establish equivalence or evensuperiority to existing treatments in terms of mortality fromall causes.
Dr. Ray is a professor at the Center for Education and Research on Therapeutics, Department of Preventive Medicine, Vanderbilt University School of Medicine, and a research scientist at the Geriatric Research, Education and Clinical Center, Veterans Affairs Medical Center both in Nashville.
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