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Catheter Ablation of Arrhythmias to Improve CRT Response

Catheter Ablation of Arrhythmias to Improve CRT Response

Status
Terminated
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03035227
Acronym
ABLATE-CRT
Enrollment
2
Registered
2017-01-27
Start date
2017-01-23
Completion date
2018-05-01
Last updated
2022-09-10

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Arrhythmia, Cardiac

Brief summary

The purpose of this study is to test if catheter ablation is better than medication therapy at treating arrhythmias originating from the upper and/or lower chambers of the heart in order to allow the heart to beat properly.

Interventions

PROCEDURECatheter Ablation

Catheter ablation of atrial or ventricular arrhythmia. The technique and type of ablation will be at the discretion of the treating electrophysiologists.

DRUGAnti-Arrhythmics

Anti-Arrhythmic drugs that are deemed to be appropriate for the given participants's arrhythmia by the treating physician.

Sponsors

Biosense Webster, Inc.
CollaboratorINDUSTRY
Kansas City Heart Rhythm Institute
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

* Heart failure patients with CRT-D or CRT-P greater than 3 months * Bi-ventricular pacing less than 94% of the time * 3 months after CRT-D or CRT-P implantation an EF improvement less than 5% * Presence of one of the following arrhythmias and eligible for catheter ablation: * Atrial fibrillation * Atrial flutter * Supraventricular tachycardia * Premature ventricular contraction burden greater than 30% in a 24-hour period * Ventricular tachycardia

Exclusion criteria

* Estimated survival less than one year * Patient unable to make scheduled follow up visits at treating center * Participating in another investigational study

Design outcomes

Primary

MeasureTime frameDescription
Change in Ejection Fraction (EF)90 DaysChange in Ejection Fraction (EF)
Bi-ventricular Pacing Improvement90 Daysdata not analyzed
Cardiovascular Mortality365Daysdata not analyzed

Secondary

MeasureTime frameDescription
Hospital Admissions for Heart Failure Exacerbation365 Daysdata not analyzed
Change in Quality of Life Kansas City Cardiomyopathy Questionnaire (KCCQ)30 Daysdata not analyzed
Change in 6 Minute Walk Test30 Daysdata not analyzed
New York Heart Association (NYHA) Class Change30 Days
Change in Quality of Life - SF-3630 Daysdata not analyzed
All-cause Mortality365 Daysdata was not analyzed

Countries

United States

Participant flow

Participants by arm

ArmCount
Catheter Ablation
Catheter ablation procedure of atrial and/or ventricular arrhythmias. Catheter Ablation: Catheter ablation of atrial or ventricular arrhythmia. The technique and type of ablation will be at the discretion of the treating electrophysiologists.
0
Medical Therapy
Medical management using antiarrhythmic drugs per standard of care of treating physician. Anti-Arrhythmics: Anti-Arrhythmic drugs that are deemed to be appropriate for the given participants's arrhythmia by the treating physician.
0
Total0

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall Studystudy stopped due to PI leaving institut11

Baseline characteristics

Characteristic
Region of Enrollment
United States

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 00 / 0
other
Total, other adverse events
0 / 00 / 0
serious
Total, serious adverse events
0 / 00 / 0

Outcome results

Primary

Bi-ventricular Pacing Improvement

data not analyzed

Time frame: 90 Days

Population: data not analyzed

Primary

Cardiovascular Mortality

data not analyzed

Time frame: 365Days

Population: data not analyzed

Primary

Change in Ejection Fraction (EF)

Change in Ejection Fraction (EF)

Time frame: 90 Days

Population: data not analyzed

Secondary

All-cause Mortality

data was not analyzed

Time frame: 365 Days

Population: data not analyzed

Secondary

Change in 6 Minute Walk Test

data not analyzed

Time frame: 30 Days

Population: data not analyzed

Secondary

Change in Quality of Life Kansas City Cardiomyopathy Questionnaire (KCCQ)

data not analyzed

Time frame: 30 Days

Population: data not analyzed

Secondary

Change in Quality of Life - SF-36

data not analyzed

Time frame: 30 Days

Population: data not analyzed

Secondary

Hospital Admissions for Heart Failure Exacerbation

data not analyzed

Time frame: 365 Days

Population: data not analyzed

Secondary

New York Heart Association (NYHA) Class Change

Time frame: 30 Days

Population: data not analyzed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026