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 are retrieved from ClinicalTrials.gov and synchronized into the directory. Search pages remain noindex by default.

Clear filters
ClinicalTrials.gov public records Last synced Sep 20, 2026, 5:10 AM EDT

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

Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: Cardiac Chambers Clear all
Completed No phase listed Observational

Exercise in Chronically Paced Children

NCT00374608
View directory record Official record
Conditions
Congenital Diseases, Complete Heart Block, Pacemaker
Interventions
Not listed
Lead sponsor
Emory University
Other
Eligibility
10 Years to 21 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated May 31, 2012 · Synced Sep 20, 2026, 5:10 AM EDT
Completed No phase listed Observational

Brain Perfusion and Hemodynamic Stability in Patients Undergoing Radiofrequency Ablation of Ventricular Tachycardia

NCT01695551
View directory record Official record
Conditions
Ventricular Tachycardia
Interventions
Data Collection Forms
Other
Lead sponsor
Dhanunjaya Lakkireddy, MD, FACC
Other
Eligibility
18 Years and older
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Jan 8, 2017 · Synced Sep 20, 2026, 5:10 AM EDT
Recruiting No phase listed Observational

Aveir VR Coverage With Evidence Development Post-Approval Study

NCT05336877
View directory record Official record
Conditions
Cardiac Pacemaker, Arrythmia, Bradycardia
Interventions
Aveir VR Leadless Pacemaker System, Single-Chamber Transvenous Pacemaker
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
8,744 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2028
U.S. locations
1
States / cities
Sylmar, California
Source: ClinicalTrials.gov public record
Updated Jul 30, 2025 · Synced Sep 20, 2026, 5:10 AM EDT
Recruiting Phase 3 Interventional

Apixaban Versus Warfarin for Left Ventricular Thrombus

NCT07709780
View directory record Official record
Conditions
Left Ventricular Thrombus
Interventions
Apixaban, Warfarin
Drug
Lead sponsor
University of Arizona
Other
Eligibility
18 Years and older
Enrollment
218 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Jul 16, 2026 · Synced Sep 20, 2026, 5:10 AM EDT
Completed Not applicable Interventional Results available

Reducing Decompensation Events Utilizing Intracardiac Pressures in Patients With Chronic Heart Failure (HF) (REDUCEhf)

NCT00354159
View directory record Official record
Conditions
Heart Failure
Interventions
Implantable Hemodynamic Monitor (Chronicle® IHM), and IHM in combination with single chamber ICD (Chronicle ICD)
Device
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
18 Years and older
Enrollment
442 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2011
U.S. locations
52
States / cities
Birmingham, Alabama • La Jolla, California • Loma Linda, California + 43 more
Source: ClinicalTrials.gov public record
Updated Aug 8, 2012 · Synced Sep 20, 2026, 5:10 AM EDT
Completed No phase listed Observational

Safety Monitoring of Patients Having Pulmonary Vein Ablation

NCT00590668
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
Transesophageal Echocardiography
Diagnostic Test
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years and older
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2013
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 2, 2017 · Synced Sep 20, 2026, 5:10 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 2, 2008 · Synced Sep 20, 2026, 5:10 AM EDT
Recruiting No phase listed Observational

AVEIR DR Coverage With Evidence Development (CED) Study

NCT05932602
View directory record Official record
Conditions
Cardiac Pacemaker, Arrythmia, Bradycardia
Interventions
Aveir DR Leadless Pacemaker System, Dual Chamber Transvenous Pacemaker
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
2,812 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2030
U.S. locations
1
States / cities
Sylmar, California
Source: ClinicalTrials.gov public record
Updated Apr 5, 2025 · Synced Sep 20, 2026, 5:10 AM EDT
Completed No phase listed Observational

Association Between Genetic Variant Scores and Warfarin Effect

NCT03894878
View directory record Official record
Conditions
Atrial Fibrillation, Deep Vein Thrombosis, Intracardiac Thrombus, Pulmonary Embolism, Venous Thromboembolic Disease
Interventions
Not listed
Lead sponsor
Cipherome, Inc.
Industry
Eligibility
18 Years to 99 Years
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
Santa Clara, California
Source: ClinicalTrials.gov public record
Updated Feb 15, 2023 · Synced Sep 20, 2026, 5:10 AM EDT
Completed Phase 1 Interventional

A Phase I Study to Assess the Electrophysiologic Effects of BMS-394136 on the Atrium and Ventricle in Patients With Dual-Chamber Pacemakers or Defibrillators

NCT00162448
View directory record Official record
Conditions
Heart Diseases
Interventions
BMS-394136, Placebo
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years to 80 Years
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2005
U.S. locations
3
States / cities
Salisbury, Maryland • Ann Arbor, Michigan • Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 19, 2008 · Synced Sep 20, 2026, 5:10 AM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

CARTO® 3 System and Real Time Intracardiac Ultrasound

NCT01716663
View directory record Official record
Conditions
Atrial Fibrillation, Paroxysmal AF
Interventions
Catheter Ablation
Device
Lead sponsor
Biosense Webster, Inc.
Industry
Eligibility
18 Years and older
Enrollment
234 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
26
States / cities
Phoenix, Arizona • Scottsdale, Arizona • Santa Barbara, California + 23 more
Source: ClinicalTrials.gov public record
Updated Nov 30, 2014 · Synced Sep 20, 2026, 5:10 AM EDT
Active, not recruiting No phase listed Observational

Aveir VR Real-World Evidence Post-Approval Study

NCT05270499
View directory record Official record
Conditions
Cardiac Pacemaker, Arrythmia, Bradycardia
Interventions
Aveir VR Leadless Pacemaker System
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
3,427 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2034
U.S. locations
1
States / cities
Sylmar, California
Source: ClinicalTrials.gov public record
Updated May 19, 2026 · Synced Sep 20, 2026, 5:10 AM EDT
Completed Phase 3 Interventional Results available

Intracardiac CrYoablation for AtrioVentricular Nodal Reentrant Tachycardia

NCT01426425
View directory record Official record
Conditions
AtrioVentricular Nodal Reentrant Tachycardia, Supraventricular Tachycardia, Heart Disease
Interventions
Freezor Xtra Cryoablation Catheter
Device
Lead sponsor
Medtronic Cardiac Ablation Solutions
Industry
Eligibility
18 Years and older
Enrollment
572 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
26
States / cities
Phoenix, Arizona • Santa Monica, California • Stanford, California + 23 more
Source: ClinicalTrials.gov public record
Updated Feb 12, 2025 · Synced Sep 20, 2026, 5:10 AM EDT
Completed No phase listed Observational

Effects Rapid Atrial Pacing Has on the Electrocardiogram (ECG) in Patients With Dual Chamber Pacemakers

NCT00883610
View directory record Official record
Conditions
Prolonged QT Interval
Interventions
Not listed
Lead sponsor
Vanderbilt University
Other
Eligibility
21 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Dec 10, 2014 · Synced Sep 20, 2026, 5:10 AM EDT
Recruiting Not applicable Interventional

Evaluation of 4D Intracardiac Echocardiography (ICE) During Structural Heart and Electrophysiology Procedures

NCT07806890
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
4D ICE Adjunct Imaging
Device
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 7, 2026 · Synced Sep 20, 2026, 5:10 AM EDT
Recruiting Phase 3 Interventional

[64Cu]FBP8 PET for Early Detection of Intracardiac Thrombus in Amyloid Cardiomyopathy

NCT07560306
View directory record Official record
Conditions
Cardiac Amyloidosis
Interventions
[64Cu]FBP8 PET/MR
Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 20, 2026 · Synced Sep 20, 2026, 5:10 AM EDT
Recruiting No phase listed Observational

Aveir DR Real-World Evidence Post-Approval Study

NCT05935007
View directory record Official record
Conditions
Cardiac Pacemaker, Arrythmia, Bradycardia
Interventions
Aveir DR Leadless Pacemaker System
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
1,805 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2030
U.S. locations
1
States / cities
Sylmar, California
Source: ClinicalTrials.gov public record
Updated May 19, 2026 · Synced Sep 20, 2026, 5:10 AM EDT
Recruiting No phase listed Observational

Single Chamber Atrial Leadless Pacing for Isolated Sinus Node Dysfunction

NCT07638995
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
Implantable Loop Recorder
Device
Lead sponsor
Northwell Health
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
6
States / cities
Bay Shore, New York • Huntington, New York • Manhasset, New York + 3 more
Source: ClinicalTrials.gov public record
Updated Jun 9, 2026 · Synced Sep 20, 2026, 5:10 AM EDT
Completed Not applicable Interventional

Temporary Biventricular Pacing

NCT01987531
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 Sep 20, 2026, 5:10 AM EDT
Completed Phase 4 Interventional Results available

The Use of Dual Chamber ICD With Special Programmed Features to Lower the Risk of Inappropriate Shock

NCT00787800
View directory record Official record
Conditions
Ventricular Tachycardia, Ventricular Fibrillation, Atrial Fibrillation, Supraventricular Tachycardia
Interventions
Dual Chamber ICD, Single Chamber ICD
Device
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 90 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
2
States / cities
Jacksonville, Florida • Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 23, 2014 · Synced Sep 20, 2026, 5:10 AM EDT
Completed No phase listed Observational

Siemens 3-D C-Arm CT of the Heart Chambers

NCT00619450
View directory record Official record
Conditions
Atrial Fibrillation
Interventions
3D C-arm CT scan
Other
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years and older
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 31, 2017 · Synced Sep 20, 2026, 5:10 AM EDT
Completed Phase 4 Interventional

Reduce Ventricular Pacing in Dual Chamber Implantable Cardioverter Defibrillators Using AutoIntrinsic Conduction Search Study

NCT00187239
View directory record Official record
Conditions
Arrhythmia
Interventions
Autointrinsic Conduction Search Algorithm
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
157 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
1
States / cities
Pomona, New Jersey
Source: ClinicalTrials.gov public record
Updated Feb 3, 2019 · Synced Sep 20, 2026, 5:10 AM EDT
Completed Not applicable Interventional Results available

Chronicle Offers Management to Patients With Advanced Signs and Symptoms of Heart Failure (COMPASS-HF)

NCT00643279
View directory record Official record
Conditions
Heart Failure
Interventions
Chronicle Implantable Hemodynamic Monitor, Standard of Care
Device · Other
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
18 Years and older
Enrollment
277 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2013
U.S. locations
28
States / cities
Birmingham, Alabama • Loma Linda, California • Los Angeles, California + 22 more
Source: ClinicalTrials.gov public record
Updated Dec 21, 2023 · Synced Sep 20, 2026, 5:10 AM EDT
Enrolling by invitation Not applicable Interventional

EDEN Intracardiac Electrogram Recording and Classifying System

NCT07137455
View directory record Official record
Conditions
Ventricular Arrhythmia
Interventions
EDEN Intracardiac Electrogram Recording and Classifying System
Device
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
21 Years to 100 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Sep 17, 2026 · Synced Sep 20, 2026, 5:10 AM EDT