Abstract

The results of the first randomized controlled trial of a medical treatment were reported in 1947. The antibiotic streptomycin was demonstrated to be dramatically superior to bed rest alone in treating tuberculosis. Looking back on this trial in 1990, A. B. Hill, the distinguished medical statistician who played a prominent role in the use of randomization in this study, made a telling statement about the moral climate of clinical research at the time: "Of course, there were no ethical problems in those days: we did not ask the patient’s permission or anybody’s permission. We did not tell them they were in a trial—we just did it" (1990, 78). From our perspective today it is obvious that it is not true that there ..