Independent directory Public ClinicalTrials.gov records United States
Clinical Trials Finder
Objective public record navigation
Search Results

Search by objective public record fields.

Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results come from ClinicalTrials.gov. When the live registry is unavailable, a clearly labeled stored copy may be shown.

Clear filters

These results were retrieved from the live ClinicalTrials.gov registry. Filters and sort order apply to this result list.

ClinicalTrials.gov public records Last synced Oct 25, 2026, 10:12 AM EDT

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

Showing 25–37 of 37 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Pacemaker Rate Clear all
Not yet recruiting Not applicable Interventional

PACE Cognition Proof-of-Concept Study

NCT07769424
View directory record Official record
Conditions
Symptomatic Bradycardia, Cognitive Function, Pacemaker, Health Status
Interventions
Physiologic Pacemaker Programming, Standard Pacemaker Programming
Device
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years and older
Enrollment
110 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
2
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Oct 7, 2026 · Synced Oct 25, 2026, 10:12 AM EDT
Terminated Not applicable Interventional Results available

Restoration of Chronotropic Competence in Heart Failure Patients With Normal Ejection Fraction

NCT00670111
View directory record Official record
Conditions
Heart Failure
Interventions
Insignia Plus / Ultra (Guidant/Boston Scientific)
Device
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
18 Years and older
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
5
States / cities
Jonesboro, Arkansas • Louisville, Kentucky • Baltimore, Maryland + 2 more
Source: ClinicalTrials.gov public record
Updated May 19, 2017 · Synced Oct 25, 2026, 10:12 AM EDT
Terminated Not applicable Interventional Results available

Investigational Device Exemption (IDE) Study for the Approval of Closed Loop Stimulation (CLS) and Cardiac Resyncronization Pacing Therapies (CRT) for the Treatment of Atrial Fibrillation (AF) With Ablate and Pace

NCT00356057
View directory record Official record
Conditions
Atrial Fibrillation, Congestive Heart Failure
Interventions
Protos DR/CLS and Stratos LV CRT pacemakers
Device
Lead sponsor
Biotronik, Inc.
Industry
Eligibility
18 Years and older
Enrollment
153 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2008
U.S. locations
10
States / cities
Birmingham, Alabama • Lake Charles, Louisiana • Boston, Massachusetts + 7 more
Source: ClinicalTrials.gov public record
Updated Feb 27, 2018 · Synced Oct 25, 2026, 10:12 AM EDT
Completed Not applicable Interventional Results available

Efficacy Study of Pacemakers to Treat Slow Heart Rate in Patients With Heart Failure

NCT02145351
View directory record Official record
Conditions
Heart Failure With a Preserved Ejection Fraction, Heart Failure, Diastolic, Chronotropic Incompetence
Interventions
Rate adaptive atrial pacing using a dual-chamber pacemaker, Pacemaker system will be implanted but set to Pacing Off.
Device
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2022
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Apr 5, 2023 · Synced Oct 25, 2026, 10:12 AM EDT
Terminated Not applicable Interventional Results available

APPROPRIATE - Rate Adaptive Pacing Sensor

NCT00757666
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 14, 2017 · Synced Oct 25, 2026, 10:12 AM EDT
Completed Not applicable Interventional

Personalized Pacing: A New Paradigm for Patients With Diastolic Dysfunction or Heart Failure With Preserved Ejection Fraction

NCT04721314
View directory record Official record
Conditions
Pacemaker, Diastolic Dysfunction, Diastolic Heart Failure
Interventions
Adjustment of lower rate limit, Maintenance of lower rate limit
Device
Lead sponsor
University of Vermont
Other
Eligibility
18 Years and older
Enrollment
123 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Feb 9, 2022 · Synced Oct 25, 2026, 10:12 AM EDT
Recruiting Phase 4 Interventional Accepts healthy volunteers

Prevention of Postop Atrial Fibrillation Through Intraoperative Inducibility of Atrial Fibrillation and Amiodarone Treatment

NCT03868150
View directory record Official record
Conditions
Postoperative Atrial Fibrillation
Interventions
Amiodarone Injection, Intraoperative Rapid Atrial Pacing
Drug · Device
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
600 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2050
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Feb 17, 2026 · Synced Oct 25, 2026, 10:12 AM EDT
Completed Not applicable Interventional

PITA-HF: Feasibility, Safety, and Tolerability

NCT04159454
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 14, 2023 · Synced Oct 25, 2026, 10:12 AM EDT
Recruiting Not applicable Interventional

Programmed Ventricular Stimulation to Risk Stratify for Early Cardioverter-Defibrillator (ICD) Implantation to Prevent Tachyarrhythmias Following Acute Myocardial Infarction (PROTECT-ICD)

NCT03588286
View directory record Official record
Conditions
Sudden Cardiac Death
Interventions
Electrophysiology study (EPS), Standard Care, Cardiac Magnetic Resonance (CMR)
Procedure · Other
Lead sponsor
Western Sydney Local Health District
Other
Eligibility
18 Years to 85 Years
Enrollment
1,058 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2029
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 7, 2024 · Synced Oct 25, 2026, 10:12 AM EDT
Terminated Not applicable Interventional Results available

MIRACLE EF Clinical Study

NCT01735916
View directory record Official record
Conditions
Congestive Heart Failure, Left Bundle Branch Block, Systolic Heart Failure
Interventions
CRT-P Implant, CRT-P OFF
Device
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
18 Years and older
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
69
States / cities
Concord, California • La Jolla, California • Los Angeles, California + 62 more
Source: ClinicalTrials.gov public record
Updated Nov 6, 2017 · Synced Oct 25, 2026, 10:12 AM EDT
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, 10:12 AM 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, 10:12 AM 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, 10:12 AM EDT