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ClinicalTrials.gov public records Last synced Oct 25, 2026, 8:47 PM EDT

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Showing 217–235 of 235 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Pacemaker Clear all
Completed No phase listed Observational

The Atrial High Rate Episodes in Pacemaker Patients

NCT00627328
View directory record Official record
Conditions
Arrhythmia, Atrial Fibrillation, Atrioventricular Block, Bradycardia, Sick Sinus Syndrome
Interventions
Not listed
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
50 Years and older
Enrollment
427 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2004
U.S. locations
37
States / cities
Hot Springs, Arkansas • Little Rock, Arkansas • Fresno, California + 34 more
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Oct 25, 2026, 8:47 PM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

InterventiOn of Biventricular Pacemaker Function on ventrIcular Function Among Patients With LVAD's

NCT03232736
View directory record Official record
Conditions
Heart Diseases, Left Ventricular Dysfunction
Interventions
Not listed
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 80 Years
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2020
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Nov 14, 2023 · Synced Oct 25, 2026, 8:47 PM EDT
Completed No phase listed Observational

Evaluation of EMI in Patients With Micra Leadless Pacemaker

NCT03508128
View directory record Official record
Conditions
Electromagnetic Interference
Interventions
surgical procedure
Other
Lead sponsor
Edward-Elmhurst Health System
Other
Eligibility
18 Years and older
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018
U.S. locations
1
States / cities
Naperville, Illinois
Source: ClinicalTrials.gov public record
Updated Aug 21, 2018 · Synced Oct 25, 2026, 8:47 PM EDT
Enrolling by invitation Not applicable Interventional

Magnetic Resonance Imaging (MRI) in Patients With Pacemakers and Implanted Cardioverter Defibrillators

NCT02888353
View directory record Official record
Conditions
Device:MRI
Interventions
Device: MRI
Device
Lead sponsor
Johns Hopkins University
Other
Eligibility
9 Years to 100 Years
Enrollment
4,500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2027
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 15, 2025 · Synced Oct 25, 2026, 8:47 PM EDT
Completed No phase listed Observational

ICD-ON Registry: Periop Management of Cardiac Devices

NCT02052453
View directory record Official record
Conditions
Oversensing Cardiac Pacemaker, ICD, Surgery
Interventions
Not listed
Lead sponsor
Edward Hospital
Other
Eligibility
18 Years and older
Enrollment
350 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
3
States / cities
Downers Grove, Illinois • Elmhurst, Illinois • Naperville, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 28, 2017 · Synced Oct 25, 2026, 8:47 PM EDT
Completed No phase listed Observational

Myocardial Injury in Patients With Cardiac Implantable Electronic Devices Following Magnetic Resonance Imaging

NCT04151953
View directory record Official record
Conditions
Magnetic Resonance Imaging (MRI)
Interventions
Blood sample collection
Diagnostic Test
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
105 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 5, 2022 · Synced Oct 25, 2026, 8:47 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 7, 2024 · Synced Oct 25, 2026, 8:47 PM EDT
Recruiting Not applicable Interventional

Remote Alert Pathway To Optimize CaRe of Cardiac Implantable Electrical Devices

NCT06937658
View directory record Official record
Conditions
Pacemaker DDD, Implantable Defibrillator User
Interventions
Alert-based care, Guideline-based care
Device
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years and older
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 7, 2026 · Synced Oct 25, 2026, 8:47 PM EDT
Completed No phase listed Observational Results available

Imaging Study of Lead Implant for His Bundle Pacing

NCT03294317
View directory record Official record
Conditions
Cardiac Pacemaker, Artificial
Interventions
His bundle pacing
Device
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
18 Years and older
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
3
States / cities
Indianapolis, Indiana • Wilkes-Barre, Pennsylvania • Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Jun 1, 2021 · Synced Oct 25, 2026, 8:47 PM 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 Oct 2, 2026 · Synced Oct 25, 2026, 8:47 PM EDT
Withdrawn Phase 4 Interventional

Remote Interrogation in Rural Emergency Departments

NCT02421549
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
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Albuquerque, New Mexico
Source: ClinicalTrials.gov public record
Updated Feb 4, 2019 · Synced Oct 25, 2026, 8:47 PM EDT
Completed No phase listed Observational Results available

ProMRI Study of the Entovis Pacemaker System

NCT01761162
View directory record Official record
Conditions
Safety of the ProMRI Pacemaker System Under Specific MRI Conditions
Interventions
Patients with a ProMRI Pacemaker System, Magnetic Resonance Imaging (MRI) scan
Device · Other
Lead sponsor
Biotronik, Inc.
Industry
Eligibility
18 Years and older
Enrollment
229 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
25
States / cities
Scottsdale, Arizona • Concord, California • Newport Beach, California + 22 more
Source: ClinicalTrials.gov public record
Updated Feb 9, 2017 · Synced Oct 25, 2026, 8:47 PM 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 4, 2008 · Synced Oct 25, 2026, 8:47 PM EDT
Completed No phase listed Observational

Optivol Diagnostic Data for Discharge in Heart Failure

NCT00420108
View directory record Official record
Conditions
Heart Failure, Congestive, Cardiac Pacemaker, Artificial
Interventions
Not listed
Lead sponsor
Thomas Jefferson University
Other
Eligibility
18 Years and older
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2010
U.S. locations
5
States / cities
Saint Joseph, Missouri • Elmer, New Jersey • Philadelphia, Pennsylvania + 1 more
Source: ClinicalTrials.gov public record
Updated Aug 20, 2010 · Synced Oct 25, 2026, 8:47 PM EDT
Recruiting Not applicable Interventional

PrEcision Pacing in HFpEF: the PEP-HFpEF Trial

NCT07864558
View directory record Official record
Conditions
Heart Failure and Preserved Ejection Fraction, Heart Failure New York Heart Association Class III, Heart Failure New York Heart Association (NYHA) Class II
Interventions
Individualized myPACE pacemaker programming
Device
Lead sponsor
Tufts Medical Center
Other
Eligibility
18 Years and older
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 20, 2026 · Synced Oct 25, 2026, 8:47 PM EDT
Completed No phase listed Observational

Safety of Magnetic Resonance Imaging in Patients With Pacemakers and Defibrillators

NCT02227004
View directory record Official record
Conditions
Conditions Requiring Diagnostic Evaluation
Interventions
Perform MRI in patients with pacemaker or ICD
Diagnostic Test
Lead sponsor
Johns Hopkins University
Other
Eligibility
9 Years to 100 Years
Enrollment
1,275 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 20, 2021 · Synced Oct 25, 2026, 8:47 PM EDT
Completed Phase 4 Interventional

Syncope: Pacing or Recording in the Later Years

NCT01423994
View directory record Official record
Conditions
Syncope, Heart Block, Conduction Disorder of the Heart
Interventions
pacemaker, implantable loop recorder
Procedure
Lead sponsor
Canadian Institutes of Health Research (CIHR)
Government
Eligibility
Not listed
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2017
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated May 16, 2019 · Synced Oct 25, 2026, 8:47 PM EDT
Completed Phase 2 Interventional Results available

Study to Evaluate the Effect of Ranolazine and Dronedarone When Given Alone and in Combination in Patients With Paroxysmal Atrial Fibrillation

NCT01522651
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
Ranolazine, Dronedarone, Ranolazine placebo, Dronedarone placebo
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years and older
Enrollment
134 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
15
States / cities
Beverly Hills, California • Newport Beach, California • San Francisco, California + 12 more
Source: ClinicalTrials.gov public record
Updated Nov 6, 2020 · Synced Oct 25, 2026, 8:47 PM EDT
Completed Not applicable Interventional Results available

Micra Transcatheter Pacing System Continued Access Study Protocol

NCT02488681
View directory record Official record
Conditions
Bradycardia
Interventions
Micra Pacemaker Implant
Device
Lead sponsor
Medtronic
Industry
Eligibility
18 Years and older
Enrollment
285 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
29
States / cities
Los Angeles, California • New Haven, Connecticut • Jacksonville, Florida + 25 more
Source: ClinicalTrials.gov public record
Updated Apr 12, 2018 · Synced Oct 25, 2026, 8:47 PM EDT