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ClinicalTrials.gov public records Last synced May 21, 2026, 8:25 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–24 of 191 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: Pacing Clear all
Completed No phase listed Observational
View directory record Official record
Conditions
Cardiac Rhythm Disorder
Interventions
Not listed
Lead sponsor
Medtronic
Industry
Eligibility
Not listed
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2021
U.S. locations
118
States / cities
Birmingham, Alabama • Anchorage, Alaska • Chandler, Arizona + 115 more
Source: ClinicalTrials.gov public record
Updated Aug 21, 2022 · Synced May 21, 2026, 8:25 PM EDT
Completed Not applicable Interventional
View directory record Official record
Conditions
Right Ventricular (RV) Dysfunction
Interventions
left ventricular epicardial pacing lead
Other
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 84 Years
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Nov 13, 2017 · Synced May 21, 2026, 8:25 PM EDT
Terminated No phase listed Observational Results available
View directory record Official record
Conditions
Safety and Effectiveness of the Siello S Lead
Interventions
market-released BIOTRONIK pacemaker system including one or two Siello S leads.
Device
Lead sponsor
Biotronik, Inc.
Industry
Eligibility
18 Years and older
Enrollment
1,758 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2019
U.S. locations
53
States / cities
La Jolla, California • La Mesa, California • New Haven, Connecticut + 50 more
Source: ClinicalTrials.gov public record
Updated May 31, 2020 · Synced May 21, 2026, 8:25 PM EDT
Completed Not applicable Interventional
View directory record Official record
Conditions
Heart Failure, Dilated Cardiomyopathy
Interventions
PITA
Device
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 13, 2023 · Synced May 21, 2026, 8:25 PM EDT
Completed Not applicable Interventional Results available
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 11, 2018 · Synced May 21, 2026, 8:25 PM EDT
Completed Not applicable Interventional
View directory record Official record
Conditions
Bradycardia
Interventions
Pacing Lead
Device
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
0 Years and older
Enrollment
365 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2005
U.S. locations
26
States / cities
Anchorage, Alaska • Peoria, Arizona • Long Beach, California + 23 more
Source: ClinicalTrials.gov public record
Updated Oct 12, 2006 · Synced May 21, 2026, 8:25 PM EDT
Completed Not applicable Interventional
View directory record Official record
Conditions
Heart Failure, Left Bundle-Branch Block
Interventions
Mapping and Pacing the His Bundle, Placing a guidewire in Coronary sinus for measurement of Q-LV during His Bundle pacing or, if needed, for LV pacing
Procedure
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Oct 1, 2025 · Synced May 21, 2026, 8:25 PM EDT
Completed No phase listed Observational
View directory record Official record
Conditions
Heart Failure, Pacing Induced Dyssynchrony
Interventions
Not listed
Lead sponsor
Allina Health System
Other
Eligibility
18 Years and older
Enrollment
743 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
1
States / cities
Saint Paul, Minnesota
Source: ClinicalTrials.gov public record
Updated Feb 23, 2016 · Synced May 21, 2026, 8:25 PM EDT
Completed Not applicable Interventional Results available
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
197 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
19
States / cities
Pasadena, California • Sacramento, California • Atlantis, Florida + 16 more
Source: ClinicalTrials.gov public record
Updated Feb 17, 2019 · Synced May 21, 2026, 8:25 PM EDT
Recruiting Not applicable Interventional
View directory record Official record
Conditions
Left Branch Bundle Block, RV - Right Ventricular Abnormality
Interventions
Pacemaker Interrogation and Electrocardiogram (ECG):, Cardiopulmonary Exercise Test (CPET) and Exercise Stress Cardiac Magnetic Resonance (ExeCMR, Continuous pacemaker telemetry (CPT)
Other
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Apr 15, 2026 · Synced May 21, 2026, 8:25 PM EDT
Completed No phase listed Observational
View directory record Official record
Conditions
Ventricular Tachycardia (V-Tach), Implantable Cardioverter Defibrillator (ICD), Arrythmia
Interventions
Not listed
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years and older
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 9, 2023 · Synced May 21, 2026, 8:25 PM EDT
Completed No phase listed Observational
View directory record Official record
Conditions
Heart Failure
Interventions
No intervention is used. Collection of signals only.
Device
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
2
States / cities
Richmond, Virginia • Morgantown, West Virginia
Source: ClinicalTrials.gov public record
Updated Jun 27, 2022 · Synced May 21, 2026, 8:25 PM EDT
Completed No phase listed Observational
View directory record Official record
Conditions
Left Ventricular Pacing Leads
Interventions
Quicksite, Quickflex
Device
Lead sponsor
Dhanunjaya Lakkireddy, MD, FACC
Other
Eligibility
18 Years and older
Enrollment
190 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2012
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Aug 8, 2013 · Synced May 21, 2026, 8:25 PM EDT
Completed No phase listed Observational
View directory record Official record
Conditions
Bradycardia
Interventions
Cardiac pacing
Device
Lead sponsor
Duke University
Other
Eligibility
1 Day and older
Enrollment
1,383 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
8
States / cities
Sarasota, Florida • Chicago, Illinois • Indianapolis, Indiana + 5 more
Source: ClinicalTrials.gov public record
Updated May 22, 2025 · Synced May 21, 2026, 8:25 PM EDT
Terminated Not applicable Interventional Results available
View directory record Official record
Conditions
Heart Diseases
Interventions
Rate adaptive pacemaker
Device
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
18 Years and older
Enrollment
566 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
2
States / cities
Jonesboro, Arkansas • Davenport, Iowa
Source: ClinicalTrials.gov public record
Updated Jun 13, 2017 · Synced May 21, 2026, 8:25 PM EDT
Withdrawn Early Phase 1 Interventional
View directory record Official record
Conditions
Heart Failure
Interventions
EnSite NavX-Guided CRT implant
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
Not listed
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Feb 3, 2019 · Synced May 21, 2026, 8:25 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Heart Diseases
Interventions
Angiography only, Angiography and ECG
Diagnostic Test
Lead sponsor
Pugazhendhi Vijayaraman
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Wilkes-Barre, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 21, 2025 · Synced May 21, 2026, 8:25 PM EDT
Terminated Not applicable Interventional Results available
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 May 21, 2026, 8:25 PM EDT
Completed Phase 4 Interventional
View directory record Official record
Conditions
Tricuspid Regurgitation, Right Ventricular Dysfunction, Left Ventricular Dysfunction
Interventions
Echo
Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 90 Years
Enrollment
119 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2016
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Nov 2, 2016 · Synced May 21, 2026, 8:25 PM EDT
Recruiting Phase 4 Interventional
View directory record Official record
Conditions
Pain, Postoperative
Interventions
Ibuprofen, Acetominophen
Drug
Lead sponsor
Boston University
Other
Eligibility
4 Years to 6 Years
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Brighton, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 1, 2026 · Synced May 21, 2026, 8:25 PM EDT
Terminated Not applicable Interventional Results available
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 May 21, 2026, 8:25 PM EDT
Withdrawn Phase 4 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Heart Block AV
Interventions
Medtronic Micra AV Device
Device
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 16, 2024 · Synced May 21, 2026, 8:25 PM EDT
Completed No phase listed Observational Results available
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 May 21, 2026, 8:25 PM EDT
Completed Phase 4 Interventional
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 15, 2019 · Synced May 21, 2026, 8:25 PM EDT