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

Identification of the Pericardiophrenic Vein During Cardiac Device Implant Procedures to Prevent Extracardiac Stimulation

NCT01008670
View directory record Official record
Conditions
Heart Failure
Interventions
Not listed
Lead sponsor
Respicardia, Inc.
Industry
Eligibility
18 Years to 85 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
6
States / cities
Birmingham, Alabama • Baltimore, Maryland • Cincinnati, Ohio + 3 more
Source: ClinicalTrials.gov public record
Updated Nov 23, 2010 · Synced Sep 7, 2026, 7:55 AM EDT
Completed Phase 1 Interventional

Natural History and Results of Dual Chamber (DDD) Pacemaker Therapy of Children With Obstructive Hypertrophic Cardiomyop...

NCT00001396
View directory record Official record
Conditions
Hypertrophic Cardiomyopathy
Interventions
Paragon Pacemaker
Device
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
5 Years to 20 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1993 – 2008
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Sep 7, 2026, 7:55 AM EDT
Completed No phase listed Observational

HBP Device EGM Data Collection

NCT03564860
View directory record Official record
Conditions
Sick Sinus Syndrome, AV Block, Heart Failure
Interventions
Device data collection
Procedure
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
3
States / cities
Huntsville, Alabama • Sayre, Pennsylvania • Greenville, South Carolina
Source: ClinicalTrials.gov public record
Updated Oct 7, 2020 · Synced Sep 7, 2026, 7:55 AM EDT
Completed No phase listed Observational

PROSPECT: Predictors of Response to Cardiac Re-Synchronization Therapy

NCT00253357
View directory record Official record
Conditions
Heart Failure, Congestive Heart Failure, Cardiomyopathy
Interventions
Not listed
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
18 Years and older
Enrollment
450 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2006
U.S. locations
16
States / cities
Several Locations, California • Gainsville, Florida • Atlanta, Georgia + 13 more
Source: ClinicalTrials.gov public record
Updated Dec 20, 2007 · Synced Sep 7, 2026, 7:55 AM EDT
Not listed No phase listed Observational

The Registry Evaluating Functional Outcomes of Resynchronization Management

NCT00959179
View directory record Official record
Conditions
Congestive Heart Failure
Interventions
Not listed
Lead sponsor
Saint Luke's Health System
Other
Eligibility
18 Years to 90 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
2
States / cities
Elgin, Illinois • Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Aug 13, 2009 · Synced Sep 7, 2026, 7:55 AM EDT
Completed Not applicable Interventional Results available

Remote Device Interrogation In The Emergency Department

NCT01871090
View directory record Official record
Conditions
Heart Disease, Cardiovascular Disease, Heart Failure, Arrhythmias, Cardiac
Interventions
Unpaired remote monitoring transmitter
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
99 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Zanesville, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 14, 2019 · Synced Sep 7, 2026, 7:55 AM EDT
Withdrawn Not applicable Interventional

The Effect of Yoga on Cardiac Sympathetic Innervation Evaluated by I-123 mIBG

NCT03227393
View directory record Official record
Conditions
Heart Failure, Systolic
Interventions
Yoga training
Behavioral
Lead sponsor
University of Cincinnati
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 19, 2018 · Synced Sep 7, 2026, 7:55 AM EDT
Completed Not applicable Interventional Results available

Deep Brain Stimulation for the Treatment of Traumatic Brain Injury

NCT02881151
View directory record Official record
Conditions
TBI (Traumatic Brain Injury)
Interventions
Deep brain stimulation
Device
Lead sponsor
Jaimie M. Henderson
Other
Eligibility
22 Years to 60 Years
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2022
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Dec 22, 2022 · Synced Sep 7, 2026, 7:55 AM EDT
Enrolling by invitation Not applicable Interventional

Rehabilitation With the Shoulder Pacemaker

NCT06501859
View directory record Official record
Conditions
Shoulder Injuries
Interventions
Standard of care physical therapy, Shoulder pacemaker with physical therapy
Other · Device
Lead sponsor
University of Utah
Other
Eligibility
18 Years to 80 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Jun 4, 2026 · Synced Sep 7, 2026, 7:55 AM EDT
Recruiting No phase listed Observational

Ultra-High Frequency - Electrocardiogram (UHF-ECG) for the Diagnosis of Ventricular Electrical Dyssynchrony (VED)

NCT06641362
View directory record Official record
Conditions
Bradycardia, Heart Failure, Ventricular Dysfunction
Interventions
Ultra High Frequency Electrocardiogram (UHF-ECG)
Device
Lead sponsor
VDI Technologies
Industry
Eligibility
18 Years and older
Enrollment
360 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
7
States / cities
Avondale, Arizona • Mesa, Arizona • Chicago, Illinois + 4 more
Source: ClinicalTrials.gov public record
Updated May 4, 2026 · Synced Sep 7, 2026, 7:55 AM 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 7, 2026, 7:55 AM EDT
Withdrawn Phase 1 Interventional

Pilot Study of Electronic Uterine Contraction Inhibitor

NCT00994058
View directory record Official record
Conditions
Prematurity
Interventions
Electrical Inhibition (EI) Uterine Pacemaker
Device
Lead sponsor
Winthrop University Hospital
Other
Eligibility
18 Years to 50 Years · Female only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
Mineola, New York
Source: ClinicalTrials.gov public record
Updated Dec 23, 2015 · Synced Sep 7, 2026, 7:55 AM EDT
Active, not recruiting Not applicable Interventional Results available

Effectiveness of the EMPOWER™ Modular Pacing System and EMBLEM™ Subcutaneous ICD to Communicate Antitachycardia Pacing

NCT04798768
View directory record Official record
Conditions
Tachycardia, Ventricular, Arrhythmia, Ventricular
Interventions
mCRM Therapy System
Device
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
18 Years and older
Enrollment
297 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2030
U.S. locations
18
States / cities
Phoenix, Arizona • Scottsdale, Arizona • Jonesboro, Arkansas + 14 more
Source: ClinicalTrials.gov public record
Updated Jul 22, 2026 · Synced Sep 7, 2026, 7:55 AM 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 7, 2026, 7:55 AM EDT
Completed No phase listed Observational

Long-Term Results of DDD Pacing in Obstructive Hypertrophic Cardiomyopathy

NCT00001530
View directory record Official record
Conditions
Cardiomyopathy, Hypertrophic
Interventions
Not listed
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
Not listed
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1996 – 2000
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Sep 7, 2026, 7:55 AM EDT
Completed Phase 2 Interventional

Studying the Effectiveness of Pacemaker Therapy in Children Who Have Thickened Heart Muscle

NCT00001960
View directory record Official record
Conditions
Hypertrophic Cardiomyopathy
Interventions
Pacemaker therapy
Device
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
Not listed
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2002
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Sep 7, 2026, 7:55 AM EDT
Completed No phase listed Observational

iBeat Wristwatch Validation Study

NCT03711695
View directory record Official record
Conditions
Arrythmia, Cardiac
Interventions
iBeat wristwatch device
Device
Lead sponsor
University of California, San Francisco
Other
Eligibility
21 Years to 85 Years
Enrollment
55 participants
Timeline
2018
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Mar 4, 2019 · Synced Sep 7, 2026, 7:55 AM EDT
Recruiting Not applicable Interventional

Left vs Left Randomized Clinical Trial

NCT05650658
View directory record Official record
Conditions
Heart Failure, Heart Failure With Reduced Ejection Fraction, AV Block, LBBB, RBBB, Intraventricular Conduction Delay, Pacing-Induced Cardiomyopathy
Interventions
His/LBBP, BiVP
Device
Lead sponsor
Baylor College of Medicine
Other
Eligibility
18 Years and older
Enrollment
2,136 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2029
U.S. locations
57
States / cities
Gilbert, Arizona • Tucson, Arizona • Little Rock, Arkansas + 46 more
Source: ClinicalTrials.gov public record
Updated Oct 1, 2025 · Synced Sep 7, 2026, 7:55 AM EDT
Completed Not applicable Interventional Results available

Hypoglossal Nerve Stimulation on Cardiovascular Outcomes

NCT03359096
View directory record Official record
Conditions
Obstructive Sleep Apnea
Interventions
Therapeutic HGNS, Subtherapeutic 'Sham' HGNS
Device
Lead sponsor
University of Pennsylvania
Other
Eligibility
22 Years and older
Enrollment
63 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2022
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 29, 2023 · Synced Sep 7, 2026, 7:55 AM EDT
Completed Not applicable Interventional Results available

Conduction System Pacing Optimized Therapy

NCT04905290
View directory record Official record
Conditions
Heart Failure
Interventions
Left ventricular coronary sinus (BiV) configuration, Conduction system pacing-only configuration, Conduction System Pacing Optimized Therapy (CSPOT) configuration
Device
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
7
States / cities
Tampa, Florida • Chicago, Illinois • Houma, Louisiana + 4 more
Source: ClinicalTrials.gov public record
Updated Apr 14, 2025 · Synced Sep 7, 2026, 7:55 AM EDT
Completed Not applicable Interventional Results available

His Bundle Pacing Versus Coronary Sinus Pacing for Cardiac Resynchronization Therapy

NCT02700425
View directory record Official record
Conditions
Congestive Heart Failure
Interventions
CRT Pacemaker
Device
Lead sponsor
University of Chicago
Other
Eligibility
18 Years and older
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
8
States / cities
Los Angeles, California • Chicago, Illinois • Naperville, Illinois + 3 more
Source: ClinicalTrials.gov public record
Updated Sep 4, 2021 · Synced Sep 7, 2026, 7:55 AM 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 7, 2026, 7:55 AM EDT
Recruiting Not applicable Interventional

BradycArdia paCemaKer With AV Interval Modulation for Blood prEssure treAtmenT

NCT06059638
View directory record Official record
Conditions
Hypertension, Hypertension, Systolic, Hypertension, Essential
Interventions
Medtronic Astra/Azure DR MRI IPG with AVIM therapy Activated, Medtronic Astra/Azure DR MRI IPG with AVIM therapy Deactivated
Device
Lead sponsor
Orchestra BioMed, Inc
Industry
Eligibility
18 Years and older
Enrollment
316 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2029
U.S. locations
72
States / cities
Scottsdale, Arizona • Glendale, California • Newport Beach, California + 60 more
Source: ClinicalTrials.gov public record
Updated Aug 25, 2026 · Synced Sep 7, 2026, 7:55 AM EDT
Terminated Phase 4 Interventional

HEAL-HF: A Cardiac Resynchronization Therapy (CRT) Outcomes Study

NCT00370526
View directory record Official record
Conditions
Heart Failure, Congestive
Interventions
Acute hemodynamic assessment using PV Loops (CD Leycom, The Netherlands) during LV lead placement
Procedure
Lead sponsor
Stereotaxis
Industry
Eligibility
18 Years to 80 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007
U.S. locations
3
States / cities
Gainesville, Georgia • Charleston, South Carolina • Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Jan 10, 2008 · Synced Sep 7, 2026, 7:55 AM EDT