Cardiovascular disease is the leading cause of death in men in the United States and in the developed world. Men with prostate cancer have a higher incidence of cardiovascular disease than those without, and among men with prostate cancer, cardiovascular disease is the principal non–cancer-related cause of death.1,2 The relationship of androgen-deprivation therapy (ADT) to fatal cardiovascular events is uncertain because of conflicting evidence; nonetheless, the general consensus is that men with preexisting cardiovascular disease are at increased risk for cardiovascular toxic effects when treated with ADT.3 The phase 3 HERO trial now reported in the Journal shows that relugolix, . . .