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EBMtrialcentral- Comparing Initial Diuretic Therapies Using a Collaborative Network

NCT01748123 · Status: WITHDRAWN · Phase: PHASE4 · Type: INTERVENTIONAL

Last updated 2017-08-18

No results posted yet for this study

Summary

* Clinical equipoise exists with respect to the important question, "What is the best initial diuretic for the treatment of Hypertension"? A pragmatic comparative effectiveness research (CER) study comparing Chlorthalidone to Hydrochlorthiazide (HCTZ) could help inform decision making for this common problem.
* The investigators aim to harness both the power of bioinformatics (using web-based data-capture and electronic health records) and of online media (through collaboration) in order to facilitate such a CER in "usual-care" settings. This process may also provide a foundation for testing a wealth of important clinical questions which commonly arise in the delivery of contemporary healthcare and would otherwise be left unanswered.
* To this end the investigators are developing a website, EBMtrialcentral, where eligible physicians can go online and join their collaborative network. Physicians can then enroll eligible patients in this study. These will include under-served urban patients. Clinical information will be entered online (using a secure database housed at Johns Hopkins), patient consent will be obtained electronically and treatment recommendations will be randomly allocated to either 25mg daily of oral HCTZ or 12.5mg daily of oral Chlorthalidone. The investigators aim to increase to 50mg HCTZ and 25mg Chlorthalidone over 8 weeks and compare their effects on BP measured with a 24 hour monitor.
* The investigators' primary hypothesis is that non-blinded, random, parallel allocation of 12.5mg daily Chlorthalidone (titrated to 25mg at 4 weeks) will demonstrate a clinically meaningful ≥5mmHg improvement in BP control (as measured by change in BP from baseline using 24hr ABPM) compared to 25mg daily HCTZ (titrated to 50mg at 4 weeks) in newly hypertensive patients followed in a usual-care clinic setting over 8 weeks. They will also analyze differences in side-effects or safety (serum electrolytes) between these two medications.

Conditions

Interventions

DRUG

Chlorthalidone

Initial dose of 12.5mg daily Chlorthalidone (force titrated to 25mg at 4 weeks)

DRUG

Hydrochlorothiazide

Initial dose 25mg daily HCTZ (force titrated to 50mg at 4 weeks)

Sponsors & Collaborators

Principal Investigators

  • Steven P Schulman, MD · Johns Hopkins University

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
21 Years
Max Age
90 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2016-08-31
Primary Completion
2017-06-30
Completion
2018-06-30

Countries

  • United States

Study Locations

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Diseases
Companies

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT01748123 on ClinicalTrials.gov