CI

At a glance

ClinicalIndex Comparison Record
Phase 3Completed· 20,723 enrolled
Drug / intervention
Hydrochlorothiazide (HCTZ) +1 moredrug
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT02185417
NCT02185417Phase 3Completed

CSP #597 - Diuretic Comparison Project

VA Office of Research and Development·interventional·Posted Jul 9, 2014·Updated May 22, 2024

In Brief

A Phase 3 clinical trial evaluating Hydrochlorothiazide (HCTZ) and Chlorthalidone (CTD) for Hypertension. Completed, enrolled 20,723 participants across 70 sites in 2 countries.

Detailed Summary

The Diuretic Comparison Project aimed to evaluate whether chlorthalidone, as compared with hydrochlorothiazide, would reduce the risk of major nonfatal cardiovascular disease outcomes and non-cancer-related deaths in older patients with hypertension who were receiving hydrochlorothiazide at baseline. The investigators incorporated the pragmatic methods used by the Department of Veterans Affairs (VA) Healthcare System to provide a real-world assessment of the effectiveness of chlorthalidone as compared with hydrochlorothiazide in routine clinical care.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
ConditionsHypertension
CountriesPuerto Rico, United States
Collaborators--

Timeline

Phase 3CompletedFinished
201520162017201820192020202120222023202420252026
First PostedJul 9, 2014
Enrollment StartJun 15, 2016
Primary CompletionOct 15, 2022
Study CompletionDec 29, 2022
TodayJul 2, 2026
Enrollment to primary: 6.3 yearsPosted 12.0 years ago

Interventions

Hydrochlorothiazide (HCTZ)drug

Trial activities following study randomization were considered as usual care. Prescriptions of the allocated drug were managed by the primary care providers and patients would receive the prescribed mediations through the VA outpatient pharmacy services.

Chlorthalidone (CTD)drug

Trial activities following study randomization were considered as usual care. Prescriptions of the allocated drug were managed by the primary care providers and patients would receive the prescribed mediations through the VA outpatient pharmacy services.