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ClinicalTrials.gov public records Last synced May 22, 2026, 3:45 AM 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 30 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Heart Block AV Clear all
Withdrawn Phase 4 Interventional Accepts healthy volunteers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 22, 2026, 3:45 AM EDT
Completed Not applicable Interventional Results available
View directory record Official record
Conditions
Atrioventricular Conduction Block
Interventions
MARVEL 2 Algorithm Monitor Mode then Adaptive Mode
Device
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
18 Years and older
Enrollment
77 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019
U.S. locations
5
States / cities
Jacksonville, Florida • Miami, Florida • Manhasset, New York + 2 more
Source: ClinicalTrials.gov public record
Updated Jun 3, 2020 · Synced May 22, 2026, 3:45 AM EDT
Completed Not applicable Interventional
View directory record Official record
Conditions
Sick Sinus Syndrome, Heart Failure, Congestive, Atrial Fibrillation, Bradycardia, Ventricular Dysfunction
Interventions
Implantable Pulse Generators
Device
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
18 Years and older
Enrollment
1,070 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2008
U.S. locations
63
States / cities
Phoenix, Arizona • Scottsdale, Arizona • Conway, Arkansas + 60 more
Source: ClinicalTrials.gov public record
Updated Feb 28, 2008 · Synced May 22, 2026, 3:45 AM EDT
Completed Not applicable Interventional Results available
View directory record Official record
Conditions
Atrioventricular Block, Heart Diseases
Interventions
Cardiac Resynchronization Therapy (CRT)
Device
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
18 Years and older
Enrollment
918 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2013
U.S. locations
51
States / cities
Anchorage, Alaska • Peoria, Arizona • Little Rock, Arkansas + 48 more
Source: ClinicalTrials.gov public record
Updated Mar 25, 2014 · Synced May 22, 2026, 3:45 AM EDT
Completed No phase listed Observational
View directory record Official record
Conditions
Sjogren's Syndrome, Neonatal Systemic Lupus Erythematosus, Fetal Heart Block Complete
Interventions
Not listed
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
700 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2020
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Jun 22, 2021 · Synced May 22, 2026, 3:45 AM EDT
Completed No phase listed Observational
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 May 22, 2026, 3:45 AM EDT
Completed No phase listed Observational
View directory record Official record
Conditions
Ventricular Flutter, Atrioventricular Block, Intraventricular Conduction Delay, Bundle Branch Block, Pacemaker Implantation
Interventions
Permanent Pacemaker Placement
Device
Lead sponsor
Baylor Research Institute
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
1
States / cities
Plano, Texas
Source: ClinicalTrials.gov public record
Updated Jan 21, 2020 · Synced May 22, 2026, 3:45 AM EDT
Recruiting Phase 3 Interventional
View directory record Official record
Conditions
AVB - Atrioventricular Block, Fetal AVB
Interventions
Dexamethasone, IVIG
Drug
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years and older · Female only
Enrollment
1,300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2029
U.S. locations
23
States / cities
Phoenix, Arizona • Los Angeles, California • Palo Alto, California + 17 more
Source: ClinicalTrials.gov public record
Updated Apr 5, 2026 · Synced May 22, 2026, 3:45 AM EDT
Completed Phase 1 Interventional
View directory record Official record
Conditions
Atrioventricular Conduction Block
Interventions
MARVEL algorithm
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
U.S. locations
4
States / cities
Jacksonville, Florida • Miami, Florida • Atlanta, Georgia + 1 more
Source: ClinicalTrials.gov public record
Updated Oct 25, 2018 · Synced May 22, 2026, 3:45 AM EDT
Active, not recruiting No phase listed Observational
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 May 22, 2026, 3:45 AM EDT
Recruiting No phase listed Observational
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 May 22, 2026, 3:45 AM EDT
Completed Phase 1 Interventional
View directory record Official record
Conditions
Sinus Bradycardia, Atrioventricular Block
Interventions
Adenosine, Cardiac catheterization
Drug · Procedure
Lead sponsor
Columbia University
Other
Eligibility
6 Months to 25 Years
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 7, 2018 · Synced May 22, 2026, 3:45 AM EDT
Completed Not applicable Interventional Results available
View directory record Official record
Conditions
Atrioventricular Block, Sick Sinus Syndrome, Symptomatic Bradycardia, Cardiac Arrhythmia
Interventions
Long, fixed AV delay, Short, optimized AV delay
Device
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years and older
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2021
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Jul 23, 2025 · Synced May 22, 2026, 3:45 AM EDT
Recruiting No phase listed Observational
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 May 22, 2026, 3:45 AM EDT
Completed Phase 4 Interventional Results available
View directory record Official record
Conditions
Chronic Total Occlusion of Coronary Artery, Vascular Disease, Myocardial Ischemia, Coronary Artery Stenosis, Coronary Disease, Coronary Artery Disease, Coronary Restenosis
Interventions
placebo + aspirin, clopidogrel + aspirin OR prasugrel + aspirin, XIENCE V Everolimus Eluting Coronary Stent System (XIENCE V EECSS)
Drug · Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
870 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2015
U.S. locations
144
States / cities
Birmingham, Alabama • Fairhope, Alabama • Scottsdale, Arizona + 126 more
Source: ClinicalTrials.gov public record
Updated Nov 13, 2023 · Synced May 22, 2026, 3:45 AM EDT
Terminated Not applicable Interventional
View directory record Official record
Conditions
Heart Failure
Interventions
Adaptiv CRT
Device
Lead sponsor
Stern Cardiovascular Foundation, Inc.
Industry
Eligibility
18 Years and older
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Germantown, Tennessee
Source: ClinicalTrials.gov public record
Updated Sep 18, 2019 · Synced May 22, 2026, 3:45 AM EDT
Completed Not applicable Interventional Results available
View directory record Official record
Conditions
AV Block, AV Block Complete, 3rd Degree Heart Block, Complete Heart Block
Interventions
Accelerometer Sensing for Micra AV Study
Device
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
18 Years and older
Enrollment
157 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
18
States / cities
Stockton, California • Jacksonville, Florida • Leesburg, Florida + 14 more
Source: ClinicalTrials.gov public record
Updated Feb 22, 2023 · Synced May 22, 2026, 3:45 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Congenital Heart Block, Neonatal Lupus, Atrioventricular Nodal Dysfunction, Myocardial Injury
Interventions
Dexamethasone or other corticosteroid
Drug
Lead sponsor
NYU Langone Health
Other
Eligibility
16 Years to 50 Years · Female only
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2000 – 2008
U.S. locations
4
States / cities
New Haven, Connecticut • Livingston, New Jersey • New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 10, 2016 · Synced May 22, 2026, 3:45 AM EDT
Terminated Not applicable Interventional Results available
View directory record Official record
Conditions
Bradycardia, Sinus Node Dysfunction, Atrioventricular Block
Interventions
Select Secure pacing lead
Device
Lead sponsor
David Haines, MD
Other
Eligibility
19 Years and older
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
2
States / cities
Royal Oak, Michigan • Troy, Michigan
Source: ClinicalTrials.gov public record
Updated Aug 16, 2022 · Synced May 22, 2026, 3:45 AM EDT
Completed No phase listed Observational
View directory record Official record
Conditions
Patients Implanted With a Pacemaker
Interventions
Not listed
Lead sponsor
LivaNova
Industry
Eligibility
18 Years and older
Enrollment
1,440 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2011
U.S. locations
7
States / cities
Birmingham, Alabama • Sheffield, Alabama • Mesa, Arizona + 4 more
Source: ClinicalTrials.gov public record
Updated Nov 13, 2017 · Synced May 22, 2026, 3:45 AM EDT
Completed Phase 4 Interventional
View directory record Official record
Conditions
Sinus Node Dysfunction, Brady Tachy Syndrome
Interventions
PACEMAKER SYMPHONY 2550
Device
Lead sponsor
LivaNova
Industry
Eligibility
18 Years and older
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2007
U.S. locations
10
States / cities
Birmingham, Alabama • Mesa, Arizona • Los Angeles, California + 7 more
Source: ClinicalTrials.gov public record
Updated Jul 26, 2010 · Synced May 22, 2026, 3:45 AM EDT
Terminated No phase listed Observational
View directory record Official record
Conditions
Indication for Peripheral Intravenous Catheterization, Atrial Flutter, Premature Atrial Contraction, Premature Ventricular Contraction, Premature Junctional Contraction, Tachycardia, Atrioventricular Block, Bundle-Branch Block
Interventions
PICC placement with SHERLOCK 3CG™ Diamond TCS with MODUS II software
Procedure
Lead sponsor
C. R. Bard
Industry
Eligibility
21 Years and older
Enrollment
232 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
6
States / cities
Las Vegas, Nevada • Greensboro, North Carolina • Greenville, North Carolina + 3 more
Source: ClinicalTrials.gov public record
Updated Oct 19, 2021 · Synced May 22, 2026, 3:45 AM EDT
Recruiting Not applicable Interventional
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 May 22, 2026, 3:45 AM EDT
Completed Not applicable Interventional Results available
View directory record Official record
Conditions
Bradycardia, Atrioventricular Block, Left Bundle-Branch Block, Cardiomyopathies
Interventions
Solia S lead
Device
Lead sponsor
Biotronik, Inc.
Industry
Eligibility
18 Years and older
Enrollment
194 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
14
States / cities
Phoenix, Arizona • Ventura, California • Washington D.C., District of Columbia + 9 more
Source: ClinicalTrials.gov public record
Updated Mar 17, 2025 · Synced May 22, 2026, 3:45 AM EDT