Diuretics, Hypertension, and Arrhythmias Clinical Trial
NCT ID: NCT00000525
Last Updated: 2013-09-19
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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COMPLETED
PHASE3
233 participants
INTERVENTIONAL
1986-07-31
Brief Summary
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Detailed Description
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The Multiple Risk Factor Intervention Trial (MRFIT) revealed an unexpected subgroup finding: an association between diuretic therapy (especially with hydrochlorothiazide) and an increased rate of sudden death in hypertensive men with left ventricular hypertrophy and other ECG abnormalities. The Diuretics, Hypertension, and Arrhythmias Clinical Trial sought to determine whether the finding resulted from random variation or represented a serious toxic response to hydrochlorothiazide.
DESIGN NARRATIVE:
Randomized, double-blind. Following one month of withdrawal from all diuretics and repletion with oral potassium and magnesium, the study participants were randomized to two months of treatment with one of six treatment groups: hydrochlorothiazide; hydrochlorothiazide with oral potassium; hydrochlorothiazide with oral potassium and magnesium; hydrochlorothiazide and triamterene; chlorthalidone; or placebo. The main outcome measures were ventricular arrhythmias on 24-hour Holter monitoring and serum and intracellular potassium and magnesium levels.
Conditions
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Study Design
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RANDOMIZED
DOUBLE
Interventions
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hydrochlorothiazide
diet, potassium supplementation
diet, magnesium supplementation
triamterene
chlorthalidone
Eligibility Criteria
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Inclusion Criteria
Subjects had been treated for at least six months by their own physicians with hydrochlorothiazide (HCT), HCT and potassium supplementation, triamteren
35 Years
70 Years
MALE
No
Sponsors
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National Heart, Lung, and Blood Institute (NHLBI)
NIH
University of California, San Francisco
OTHER
Principal Investigators
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Stephen Hulley
Role:
University of California
References
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Siegel D, Cheitlin MD, Black DM, Seeley D, Hearst N, Hulley SB. Risk of ventricular arrhythmias in hypertensive men with left ventricular hypertrophy. Am J Cardiol. 1990 Mar 15;65(11):742-7. doi: 10.1016/0002-9149(90)91381-f.
Chang SW, Fine R, Siegel D, Chesney M, Black D, Hulley SB. The impact of diuretic therapy on reported sexual function. Arch Intern Med. 1991 Dec;151(12):2402-8.
Siegel D, Black DM, Seeley DG, Hulley SB. Circadian variation in ventricular arrhythmias in hypertensive men. Am J Cardiol. 1992 Feb 1;69(4):344-7. doi: 10.1016/0002-9149(92)90231-m.
Siegel D, Hulley SB, Black DM, Cheitlin MD, Sebastian A, Seeley DG, Hearst N, Fine R. Diuretics, serum and intracellular electrolyte levels, and ventricular arrhythmias in hypertensive men. JAMA. 1992 Feb 26;267(8):1083-9.
Siegel D, Cheitlin MD, Seeley DG, Black DM, Hulley SB. Silent myocardial ischemia in men with systemic hypertension and without clinical evidence of coronary artery disease. Am J Cardiol. 1992 Jul 1;70(1):86-90. doi: 10.1016/0002-9149(92)91395-k.
Siegel D, Saliba P, Haffner S. Glucose and insulin levels during diuretic therapy in hypertensive men. Hypertension. 1994 Jun;23(6 Pt 1):688-94. doi: 10.1161/01.hyp.23.6.688.
Other Identifiers
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44
Identifier Type: -
Identifier Source: org_study_id