Overview Treatment of Hypertension Status: Completed Trial end date: 1979-01-01 Target enrollment: Participant gender: Summary To determine whether the long-term treatment of essential hypertension without significant target organ disease materially influenced mortality and/or cardiovascular renal morbidity. Phase: Phase 3 Details Lead Sponsor: National Heart, Lung, and Blood Institute (NHLBI)Treatments: Chlorothiazide