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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Pacing Therapy Clear all
Completed Not applicable Interventional Results available

CRT Implant Strategy Using the Longest Electrical Delay for Non-left Bundle Branch Block Patients

NCT01983293
View directory record Official record
Conditions
Non-left Bundle Branch Block, Ischemic or Non-ischemic Cardiomyopathy
Interventions
QLV based implant strategy, Standard of care implant strategy
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
248 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2018
U.S. locations
32
States / cities
Glendale, California • Los Angeles, California • Mission Viejo, California + 25 more
Source: ClinicalTrials.gov public record
Updated Mar 12, 2019 · Synced Sep 19, 2026, 5:02 PM EDT
Completed Not applicable Interventional Results available

Assessment of Primary Prevention Patients Receiving An ICD - Systematic Evaluation of ATP

NCT02923726
View directory record Official record
Conditions
Sudden Cardiac Death
Interventions
Arm 1 (ATP+Shock), Arm 2 (shock only)
Device
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
21 Years and older
Enrollment
2,692 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2023
U.S. locations
89
States / cities
Huntsville, Alabama • Anchorage, Alaska • Mesa, Arizona + 82 more
Source: ClinicalTrials.gov public record
Updated Oct 21, 2024 · Synced Sep 19, 2026, 5:02 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 19, 2026, 5:02 PM EDT
Completed Phase 2 Interventional

A Comparison of Two Treatments: Pacemaker and Percutaneous Transluminal Septal Ablation for Hypertrophic Cardiomyopathy

NCT00001894
View directory record Official record
Conditions
Hypertrophic Cardiomyopathy
Interventions
pacemaker implantation, percutaneous transluminal septal ablation (PTSA)
Procedure
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
Not listed
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2002
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 3, 2006 · Synced Sep 19, 2026, 5:02 PM EDT
Recruiting Not applicable Interventional

ELEVATE-HFpEF Clinical Study

NCT06678841
View directory record Official record
Conditions
Heart Failure With Preserved Ejection Fraction (HFpEF)
Interventions
Personalized cardiac pacing
Device
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
40 Years and older
Enrollment
700 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
26
States / cities
Phoenix, Arizona • San Francisco, California • Hartford, Connecticut + 22 more
Source: ClinicalTrials.gov public record
Updated Aug 2, 2026 · Synced Sep 19, 2026, 5:02 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 19, 2026, 5:02 PM EDT
Terminated Not applicable Interventional Results available

Biventricular Pacing After Cardiopulmonary Bypass

NCT00498940
View directory record Official record
Conditions
Heart Failure
Interventions
Optimization Testing, Temporary Biventricular Pacing
Device
Lead sponsor
Henry M. Spotnitz
Other
Eligibility
18 Years and older
Enrollment
111 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2012
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 21, 2018 · Synced Sep 19, 2026, 5:02 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 19, 2026, 5:02 PM EDT
Completed Phase 4 Interventional

Optimal Anti-tachycardia Therapy in Implantable Cardioverter-defibrillator (ICD) Patients Without Pacing Indications

NCT00729703
View directory record Official record
Conditions
Tachycardia
Interventions
OVATIO DR 6550
Device
Lead sponsor
LivaNova
Industry
Eligibility
18 Years and older
Enrollment
462 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2013
U.S. locations
5
States / cities
Atlanta, Georgia • Decatur, Georgia • Mandeville, Louisiana + 2 more
Source: ClinicalTrials.gov public record
Updated Jan 12, 2015 · Synced Sep 19, 2026, 5:02 PM EDT
Withdrawn Not applicable Interventional

Evaluation of Left Bundle Branch Area Pacing As A Rescue Strategy for Cardiac Resynchronization Therapy Non-Response

NCT05884411
View directory record Official record
Conditions
Systolic Heart Failure, Heart Failure With Reduced Ejection Fraction, CRT Non-Response, Left Bundle Branch Area Pacing
Interventions
Left bundle branch area pacing, Cardiac MRI
Device · Diagnostic Test
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
Not listed
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 10, 2025 · Synced Sep 19, 2026, 5:02 PM EDT
Recruiting No phase listed Observational

ATrial Tachycardia PAcing Therapy in Congenital Heart

NCT03209583
View directory record Official record
Conditions
Atrial Arrhythmia, Atrial Tachycardia, Congenital Heart Disease, Pacemaker Re-Entrant Tachycardia
Interventions
Medtronic
Device
Lead sponsor
Ian Law
Other
Eligibility
Not listed
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2027
U.S. locations
14
States / cities
Los Angeles, California • Orange, California • Hollywood, Florida + 11 more
Source: ClinicalTrials.gov public record
Updated Mar 12, 2026 · Synced Sep 19, 2026, 5:02 PM EDT
Terminated Not applicable Interventional

Use of 3-D Blood Pool Scintigraphy to Guide Left Ventricular Pacing Lead Placement in Patients Requiring Cardiac Resynchronization Therapy

NCT02669290
View directory record Official record
Conditions
Heart Failure, Left Ventricular Dysfunction, Cardiac Resynchronization Therapy
Interventions
Guided, Non-guided
Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2018
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jan 12, 2020 · Synced Sep 19, 2026, 5:02 PM EDT
Completed Not applicable Interventional

Physiologic Accelerated Pacing as a Treatment in Patients With Heart Failure With Preserved Ejection Fraction

NCT04546555
View directory record Official record
Conditions
Heart Failure, Diastolic
Interventions
Dual chamber pacemaker, Accelerated Physiologic Pacing, Nocturnal Pacing
Device · Other
Lead sponsor
Daniel L Lustgarten
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Jul 27, 2023 · Synced Sep 19, 2026, 5:02 PM EDT
Completed Not applicable Interventional Results available

Attain Stability™ Quad Clinical Study

NCT03099655
View directory record Official record
Conditions
Heart Failure
Interventions
Attain Stability Quad Left Ventricular Pacing Lead
Device
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
18 Years and older
Enrollment
471 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
35
States / cities
Phoenix, Arizona • East Palo Alto, California • Torrance, California + 30 more
Source: ClinicalTrials.gov public record
Updated Jan 8, 2020 · Synced Sep 19, 2026, 5:02 PM EDT
Terminated Not applicable Interventional Results available

Right Ventricular Septal Pacing in Patients With Right Bundle Branch Block and Heart Failure (The SPARK Trial)

NCT02441101
View directory record Official record
Conditions
Right Bundle-Branch Block, Heart Failure
Interventions
RV DDD(R)-60 with AV optimization, RV DDD(R)-60
Device
Lead sponsor
Barry London
Other
Eligibility
18 Years and older
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Jun 17, 2024 · Synced Sep 19, 2026, 5:02 PM EDT
Recruiting No phase listed Observational

Product Performance Report: Evaluate Long-term Reliability & Performance of Medtronic Marketed Cardiac Therapy Products

NCT00271180
View directory record Official record
Conditions
Arrhythmia, Bradycardia, Heart Failure, Sinus Tachycardia
Interventions
Device
Device
Lead sponsor
Medtronic
Industry
Eligibility
Not listed
Enrollment
20,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1983 – 2040
U.S. locations
113
States / cities
Birmingham, Alabama • Anchorage, Alaska • Chandler, Arizona + 110 more
Source: ClinicalTrials.gov public record
Updated Aug 19, 2026 · Synced Sep 19, 2026, 5:02 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 19, 2026, 5:02 PM EDT
Completed No phase listed Observational Results available

Quadripolar CRT-D On Currently Approved Lead SystemS

NCT02232984
View directory record Official record
Conditions
Heart Failure
Interventions
Not listed
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
18 Years and older
Enrollment
749 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
60
States / cities
Gilbert, Arizona • Phoenix, Arizona • Yuma, Arizona + 49 more
Source: ClinicalTrials.gov public record
Updated Apr 8, 2019 · Synced Sep 19, 2026, 5:02 PM EDT
Completed Not applicable Interventional Results available

HIS-Purkinje Conduction System Pacing Optimized Trial of Cardiac Resynchronization Therapy

NCT04561778
View directory record Official record
Conditions
Heart Failure，Congestive, Cardiomyopathies, Left Ventricular Dysfunction
Interventions
HOT-CRT, Biventricular Pacing
Device
Lead sponsor
Pugazhendhi Vijayaraman
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Danville, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 6, 2024 · Synced Sep 19, 2026, 5:02 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 19, 2026, 5:02 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 19, 2026, 5:02 PM EDT
Completed Not applicable Interventional Results available

Attain Performa(TM) Quadripolar Lead Study

NCT01751022
View directory record Official record
Conditions
Heart Failure
Interventions
Device: Attain Performa Pacing Lead (along with a standard CRT-D system)
Device
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
18 Years and older
Enrollment
1,202 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
67
States / cities
Glendale, California • Riverside, California • San Diego, California + 64 more
Source: ClinicalTrials.gov public record
Updated Dec 4, 2016 · Synced Sep 19, 2026, 5:02 PM EDT
Completed Phase 3 Interventional

RethinQ Study - Evaluating Pacing in Heart Failure Patients

NCT00132977
View directory record Official record
Conditions
Heart Failure
Interventions
Cardiac Resynchronization Therapy
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
34
States / cities
Birmingham, Alabama • Scottsdale, Arizona • Little Rock, Arkansas + 28 more
Source: ClinicalTrials.gov public record
Updated Feb 3, 2019 · Synced Sep 19, 2026, 5:02 PM EDT
Completed Phase 4 Interventional Results available

PEGASUS CRT Study: Atrial Support Study in Cardiac Resynchronization Therapy

NCT00146848
View directory record Official record
Conditions
Heart Failure
Interventions
Atrial support pacing through cardiac resynchronization therapy. Device: RENEWAL family of CRT-D devices
Device
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
18 Years and older
Enrollment
1,742 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2009
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 27, 2011 · Synced Sep 19, 2026, 5:02 PM EDT