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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Cardiac resynchronization pacing Clear all
Completed No phase listed Observational

Cardiac Resynchronization Therapy (CRT) Based Heart Failure Monitoring Study

NCT00632372
View directory record Official record
Conditions
Heart Failure
Interventions
Cardiac Resynchronization Therapy, HeartPOD™ System
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years to 85 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2015
U.S. locations
9
States / cities
Los Angeles, California • Boston, Massachusetts • Rochester, New York + 5 more
Source: ClinicalTrials.gov public record
Updated Oct 11, 2020 · Synced Sep 21, 2026, 3:16 PM EDT
Completed Not applicable Interventional

Does Echocardiographically Guided Ventriculo-Ventricular Optimization Yield a Sustained Improvement in Echocardiographic Parameters in Cardiac Resynchronization Therapy Patients? (DEVISE CRT)

NCT00737490
View directory record Official record
Conditions
Cardiomyopathy, Heart Failure
Interventions
"Sequential Arm" (Promote , model # 2207-36 or Atlas HF , model # V-343), "Simultaneous Arm" (Promote , model # 2207-36 or Atlas HF , model # V-343)
Other
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2011
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 31, 2014 · Synced Sep 21, 2026, 3:16 PM EDT
Completed No phase listed Observational Results available

MultiPoint Pacing™ Post Market Study

NCT02832622
View directory record Official record
Conditions
Heart Failure
Interventions
MPP, BiV/MPP
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
2,169 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
110
States / cities
Birmingham, Alabama • Huntsville, Alabama • Avondale, Arizona + 99 more
Source: ClinicalTrials.gov public record
Updated Feb 16, 2021 · Synced Sep 21, 2026, 3:16 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Biomarkers to Predict CRT Response in Patients With HF (BIOCRT)

NCT01949246
View directory record Official record
Conditions
Heart Failure
Interventions
Not listed
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
221 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2016
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 2, 2022 · Synced Sep 21, 2026, 3:16 PM EDT
Terminated Phase 3 Interventional Results available

AV Node Ablation and Pacemaker Therapy Compared to Drug Therapy for Atrial Fibrillation - Pilot Study

NCT00589303
View directory record Official record
Conditions
Atrial Fibrillation, Heart Failure
Interventions
FDA approved rate and rhythm control drugs, AV Node ablation and device implant
Drug · Device
Lead sponsor
Mayo Clinic
Other
Eligibility
65 Years and older
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2011
U.S. locations
5
States / cities
Scottsdale, Arizona • Evansville, Indiana • Rochester, Minnesota + 2 more
Source: ClinicalTrials.gov public record
Updated Apr 3, 2013 · Synced Sep 21, 2026, 3:16 PM EDT
Recruiting Not applicable Interventional

His-Bundle Corrective Pacing in Heart Failure

NCT05265520
View directory record Official record
Conditions
Right Bundle-Branch Block, Heart Failure, His-bundle Pacing, Cardiac Resynchronization Therapy
Interventions
His-CRT implantation, BIV-CRT implantation
Procedure
Lead sponsor
University of Rochester
Other
Eligibility
18 Years and older
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2028
U.S. locations
14
States / cities
Phoenix, Arizona • Los Angeles, California • Tampa, Florida + 8 more
Source: ClinicalTrials.gov public record
Updated Feb 8, 2026 · Synced Sep 21, 2026, 3:16 PM EDT
Completed Not applicable Interventional

Comparison of Epicardial Versus Conventional Lead Placement in Cardiac Resynchronization Therapy

NCT01302470
View directory record Official record
Conditions
Cardiac Resynchronization Therapy, Heart Failure
Interventions
Primary epicardial placement of left ventricular lead, Transvenous placement of left ventricular lead
Procedure
Lead sponsor
St. Luke's-Roosevelt Hospital Center
Other
Eligibility
18 Years to 85 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2012
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 18, 2015 · Synced Sep 21, 2026, 3:16 PM EDT
Recruiting Not applicable Interventional

Mechanistic Clinical Trial of Advanced Imaging for CRT

NCT03398369
View directory record Official record
Conditions
Heart Failure, Systolic
Interventions
CMR/CTA Guidance for CRT
Diagnostic Test
Lead sponsor
University of Virginia
Other
Eligibility
20 Years to 90 Years
Enrollment
180 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2025
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Feb 5, 2020 · Synced Sep 21, 2026, 3:16 PM EDT
Terminated Not applicable Interventional Results available

Survey of QRS Frequency at Various Left Ventricular Pacing Sites for Cardiac Resynchronization

NCT03253809
View directory record Official record
Conditions
Cardiomyopathies, Congestive Heart Failure
Interventions
Biotronik Vision Guidewire
Device
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years and older
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2021
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 8, 2022 · Synced Sep 21, 2026, 3:16 PM EDT
Completed Phase 2Phase 3 Interventional

Comparison of Medical Therapy, Pacing and Defibrillation in Heart Failure

NCT00180258
View directory record Official record
Conditions
Congestive Heart Failure
Interventions
Cardiac Resynchronization Therapy with & without defibrillator
Device
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
18 Years and older
Enrollment
2,200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2002
U.S. locations
1
States / cities
Saint Paul, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 24, 2007 · Synced Sep 21, 2026, 3:16 PM EDT
Completed No phase listed Observational

Optimizing Cardiac Resynchronization

NCT00205192
View directory record Official record
Conditions
Heart Failure
Interventions
Cardiac resynchronization pacing
Procedure
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
Not listed
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2011
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Aug 28, 2012 · Synced Sep 21, 2026, 3:16 PM EDT
Completed No phase listed Observational

Conduction System Pacing International Registry (CONSPIRE)

NCT04831125
View directory record Official record
Conditions
Bradyarrhythmia, Heart Failure
Interventions
Data collection
Other
Lead sponsor
University of Chicago
Other
Eligibility
18 Years and older
Enrollment
383 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
5
States / cities
Tucson, Arizona • Chicago, Illinois • New York, New York + 2 more
Source: ClinicalTrials.gov public record
Updated Mar 2, 2026 · Synced Sep 21, 2026, 3:16 PM EDT
Completed No phase listed Observational

Quadripolar Pacing Post Approval Study

NCT01555619
View directory record Official record
Conditions
Heart Failure
Interventions
CRT-D System
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
1,971 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2019
U.S. locations
71
States / cities
Birmingham, Alabama • Huntsville, Alabama • Montgomery, Alabama + 68 more
Source: ClinicalTrials.gov public record
Updated Apr 15, 2019 · Synced Sep 21, 2026, 3:16 PM EDT
Completed No phase listed Observational

Personalized CRT - MPP Post Approval Study

NCT03232944
View directory record Official record
Conditions
Heart Failure
Interventions
Cardiac Resynchronization Therapy - MPP
Device
Lead sponsor
Medtronic
Industry
Eligibility
Not listed
Enrollment
1,338 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2021
U.S. locations
46
States / cities
Birmingham, Alabama • Little Rock, Arkansas • Chula Vista, California + 41 more
Source: ClinicalTrials.gov public record
Updated Feb 16, 2021 · Synced Sep 21, 2026, 3:16 PM EDT
Completed Not applicable Interventional

Attain StarFix™ Model 4195 Left Ventricular Lead

NCT00269230
View directory record Official record
Conditions
Heart Failure
Interventions
Pacing Lead
Device
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
18 Years and older
Enrollment
441 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2005
U.S. locations
20
States / cities
Long Beach, California • Palo Alto, California • Newark, Delaware + 17 more
Source: ClinicalTrials.gov public record
Updated Nov 19, 2008 · Synced Sep 21, 2026, 3:16 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Strategic Management to Optimize Response To Cardiac Resynchronization Therapy

NCT03089281
View directory record Official record
Conditions
Heart Failure
Interventions
CRT-D
Device
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
18 Years and older
Enrollment
699 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2020
U.S. locations
41
States / cities
Birmingham, Alabama • Huntsville, Alabama • Tucson, Arizona + 37 more
Source: ClinicalTrials.gov public record
Updated Apr 4, 2022 · Synced Sep 21, 2026, 3:16 PM EDT
Completed Not applicable Interventional

InSync III Marquis Model 7279 Cardioverter Defibrillator Cardiac Resynchronization System

NCT00271232
View directory record Official record
Conditions
Heart Failure
Interventions
Cardiac resynchronization therapy
Device
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
18 Years and older
Enrollment
238 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2005
U.S. locations
34
States / cities
Anchorage, Alaska • Phoenix, Arizona • Los Angeles, California + 31 more
Source: ClinicalTrials.gov public record
Updated Dec 20, 2007 · Synced Sep 21, 2026, 3:16 PM EDT
Terminated Phase 4 Interventional Results available

Combined Use of BIOTRONIK Home Monitoring and Predefined Anticoagulation to Reduce Stroke Risk

NCT00559988
View directory record Official record
Conditions
Atrial Fibrillation, Atrial Flutter, Stroke, Embolism, Systemic Arterial, Major Bleeding
Interventions
Home Monitoring Guided OAC, Physician-Directed OAC
Drug
Lead sponsor
Biotronik, Inc.
Industry
Eligibility
18 Years and older
Enrollment
2,718 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2013
U.S. locations
73
States / cities
Phoenix, Arizona • Scottsdale, Arizona • Anaheim, California + 70 more
Source: ClinicalTrials.gov public record
Updated Dec 4, 2017 · Synced Sep 21, 2026, 3:16 PM EDT
Completed Not applicable Interventional Results available

ECG Belt to Assess Electrical Synchronization

NCT04583709
View directory record Official record
Conditions
Bradycardia, Heart Failure
Interventions
ECG Belt
Device
Lead sponsor
Pugazhendhi Vijayaraman
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021
U.S. locations
1
States / cities
Wilkes-Barre, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 21, 2022 · Synced Sep 21, 2026, 3:16 PM EDT
Enrolling by invitation No phase listed Observational

Lead Evaluation for Defibrillation and Reliability Post Approval Study

NCT07005232
View directory record Official record
Conditions
Tachyarrhythmia
Interventions
defibrillation lead
Device
Lead sponsor
Medtronic
Industry
Eligibility
Not listed
Enrollment
2,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2032
U.S. locations
52
States / cities
Birmingham, Alabama • Stanford, California • Torrance, California + 45 more
Source: ClinicalTrials.gov public record
Updated Aug 2, 2026 · Synced Sep 21, 2026, 3:16 PM EDT
Terminated Not applicable Interventional

Effect of Cardiac Resynchronization Therapy (CRT) on Left Ventricular Assist Device (LVAD) Function

NCT04153786
View directory record Official record
Conditions
LVAD (Left Ventricular Assist Device) Driveline Infection
Interventions
Temporary changes in an already-implanted medical device (biventricular pacemaker)
Other
Lead sponsor
University of California, Davis
Other
Eligibility
Not listed
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Nov 6, 2024 · Synced Sep 21, 2026, 3:16 PM EDT
Active, not recruiting Not applicable Interventional

REsynchronization Comparison In LBBB and Normal or Mildly Reduced VENTricular Function With CRT (REINVENT-CRT)

NCT05652218
View directory record Official record
Conditions
Left Ventricular Ejection Fraction, Heart Failure (HF), Left Bundle-Branch Block
Interventions
LB-CRT, BIV-CRT
Device
Lead sponsor
Inova Health Care Services
Other
Eligibility
Not listed
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
2
States / cities
Durham, North Carolina • Falls Church, Virginia
Source: ClinicalTrials.gov public record
Updated May 5, 2026 · Synced Sep 21, 2026, 3:16 PM EDT
Completed No phase listed Observational Results available

InSync Model 8040 (InSync) and InSync III Model 8042 (InSync III) Registry

NCT00273182
View directory record Official record
Conditions
Heart Failure, Cardiomyopathy
Interventions
InSync Model 8040, InSync III Model 8042
Device
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
18 Years and older
Enrollment
1,999 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2011
U.S. locations
82
States / cities
Birmingham, Alabama • Peoria, Arizona • Fort Smith, Arkansas + 79 more
Source: ClinicalTrials.gov public record
Updated Aug 4, 2013 · Synced Sep 21, 2026, 3:16 PM EDT
Completed Not applicable Interventional Results available

Adaptive Cardiac Resynchronization Therapy Study

NCT00980057
View directory record Official record
Conditions
Heart Failure
Interventions
Adaptive CRT (aCRT), Echo
Device
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
18 Years and older
Enrollment
522 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
55
States / cities
Huntsville, Alabama • Anchorage, Alaska • Phoenix, Arizona + 52 more
Source: ClinicalTrials.gov public record
Updated Oct 15, 2018 · Synced Sep 21, 2026, 3:16 PM EDT