Placebo controlled study of prophylaxis of ventricular arrhythmias in acute myocardial infarction.

Successful prophylaxis of ventricular arrhythmias in acute myocardial infarction might achieve a major reduction in mortality of this condition. No satisfactory drug is yet available, but many new antiarrhythmic agents are being tested in this role. Such placebo controlled investigations in the earliest phase of myocardial infarction encounter unique problems of study design, drug pharmacokinetics, study conduct, and data analysis.