[Clinical implications from the results of the CASE-J extension].

The Candesartan Antihypertensive Survival Evaluation in Japan (CASE-J) trial was conducted to compare the effects of the angiotensin II receptor blocker (ARB) candesartan and the calcium channel blocker (CCB) amlodipine on the incidence of cardiovascular events in Japanese high-risk hypertensive patients. The CASE-J Extension (CASE-J Ex) was an observational study designed to evaluate the long-term effects of ARB candesartan and CCB amlodipine, incorporating an additional 3-year follow-up of the CASE-J trial. As in the CASE-J trial, no statistically significant difference was observed in the incidence of primary cardiovascular events, all-cause mortality, or cardiovascular death between the two groups. The superiority of candesartan over amlodipine in reducing new-onset diabetes was sustained in the three-year-long CASE-J Ex, thereby corroborating the results of the CASE-J trial.