Overview Diuretics, Hypertension, and Arrhythmias Clinical Trial Status: Completed Trial end date: 1969-12-31 Target enrollment: Participant gender: Summary To determine whether hypertensive patients with ECG abnormalities and receiving hydrochlorothiazide diuretics were at increased risk of sudden death. Phase: Phase 3 Details Lead Sponsor: University of California, San FranciscoCollaborator: National Heart, Lung, and Blood Institute (NHLBI)Treatments: ChlorthalidoneHydrochlorothiazideTriamterene