CI

At a glance

ClinicalIndex Comparison Record
N/ACompleted· 918 enrolled
Drug / intervention
Cardiac Resynchronization Therapy (CRT) +1 moredevice
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.

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NCT00267098N/ACompleted
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Biventricular Versus Right Ventricular Pacing in Heart Failure Patients With Atrioventricular Block (BLOCK HF)

Medtronic Cardiac Rhythm and Heart Failure·interventional·Posted Dec 20, 2005·Updated Mar 26, 2014

In Brief

A clinical study evaluating Cardiac Resynchronization Therapy (CRT) for Atrioventricular Block and Heart Diseases. Completed, enrolled 918 participants across 54 sites in 2 countries.

Detailed Summary

Heart failure is a progressive disease that decreases the pumping action of the heart. This may cause a backup of fluid in the heart and may result in heart beat changes. When there are changes in the heartbeat, sometimes a pacemaker is used to control the rate and rhythm of the heartbeat. In this trial, the researchers will test if pacing both the left and right lower half of the heart (ventricles) will: * decrease the number of hospital and clinic visits due to heart failure symptoms * extend life * delay heart failure symptoms as compared to those who are paced in only one ventricle (the right ventricle)

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
ConditionsAtrioventricular Block, Heart Diseases
CountriesCanada, United States
Collaborators--

Timeline

N/ACompletedFinished
200420052006200720082009201020112012201320142015201620172018201920202021202220232024202520262027
First PostedDec 20, 2005
Enrollment StartDec 1, 2003
Primary CompletionDec 1, 2012
Study CompletionMar 1, 2013
TodayJul 2, 2026
Enrollment to primary: 9 yearsPosted 20.5 years ago

Interventions

Cardiac Resynchronization Therapy (CRT)device

Biventricular pacing

Cardiac Resynchronization Therapy (CRT)device

Right ventricular pacing