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ClinicalTrials.gov public records Last synced Sep 17, 2026, 5:15 AM EDT

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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: Bradyarrhythmia Clear all
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 11, 2018 · Synced Sep 17, 2026, 5:15 AM EDT
Completed Phase 4 Interventional Results available

Heart Rate Response to Atropine Doses Less Than 0.1mg IV to Anesthetized Infants

NCT01819064
View directory record Official record
Conditions
Bradycardia, Arrhythmias
Interventions
Atropine
Drug
Lead sponsor
State University of New York at Buffalo
Other
Eligibility
1 Day to 2 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Apr 5, 2023 · Synced Sep 17, 2026, 5:15 AM EDT
Completed No phase listed Observational

MEDTRONIC ADAPTA, VERSA AND SENSIA nEw3 POST APPROVAL STUDY

NCT01076374
View directory record Official record
Conditions
Arrhythmia, Bradycardia
Interventions
Not listed
Lead sponsor
Medtronic
Industry
Eligibility
Not listed
Enrollment
2,927 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2015
U.S. locations
110
States / cities
Birmingham, Alabama • Anchorage, Alaska • Gilbert, Arizona + 107 more
Source: ClinicalTrials.gov public record
Updated Apr 25, 2018 · Synced Sep 17, 2026, 5:15 AM EDT
Terminated Not applicable Interventional Results available

Left Bundle Area Versus Selective His Bundle Pacing

NCT04093414
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 Sep 17, 2026, 5:15 AM EDT
Completed Not applicable Interventional

SAVEPACe - Search AV Extension and Managed Ventricular Pacing for Promoting Atrio-Ventricular Conduction

NCT00284830
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 Sep 17, 2026, 5:15 AM EDT
Completed No phase listed Observational

Heart Rate Changes Following the Administration of Sugammadex

NCT03294018
View directory record Official record
Conditions
Bradycardia
Interventions
Recording heart rate changes
Other
Lead sponsor
Joseph D. Tobias
Other
Eligibility
Up to 18 Years
Enrollment
276 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Oct 8, 2019 · Synced Sep 17, 2026, 5:15 AM EDT
Recruiting No phase listed Observational

Aveir AR Coverage With Evidence Development (CED) Study

NCT06100770
View directory record Official record
Conditions
Cardiac Pacemaker, Arrhythmia, Bradycardia
Interventions
Aveir AR Leadless Pacemaker, Single-chamber atrial transvenous pacemaker
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
586 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2031
U.S. locations
1
States / cities
Sylmar, California
Source: ClinicalTrials.gov public record
Updated Apr 3, 2025 · Synced Sep 17, 2026, 5:15 AM EDT
Completed No phase listed Observational Results available

Pacemaker Therapy in Adults With Congenital Heart Defects

NCT00303511
View directory record Official record
Conditions
Congenital Disorder
Interventions
Not listed
Lead sponsor
Emory University
Other
Eligibility
19 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1996 – 2006
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Aug 7, 2014 · Synced Sep 17, 2026, 5:15 AM EDT
Completed Not applicable Interventional Results available

BIOTRONIK Conduction System Pacing With the Solia Lead

NCT05251363
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 Sep 17, 2026, 5:15 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Optimizing Dose of Bupivacaine in Combined Spinal Epidurals To Reduce Side Effects

NCT02159807
View directory record Official record
Conditions
Pregnancy
Interventions
Bupivacaine, Fentanyl
Drug
Lead sponsor
St. Luke's-Roosevelt Hospital Center
Other
Eligibility
18 Years to 48 Years · Female only
Enrollment
170 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 2, 2019 · Synced Sep 17, 2026, 5:15 AM EDT
Completed Phase 1Phase 2 Interventional

An Exploratory Safety and Efficacy Clinical Study of CARDIX-101 for the Treatment of Chronic Bradycardia

NCT05117346
View directory record Official record
Conditions
Bradycardia
Interventions
CARDIX-101A, CARDIX-101B, CARDIX-101C
Drug
Lead sponsor
Cardix Therapeutics LLC
Industry
Eligibility
18 Years to 80 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Aug 12, 2024 · Synced Sep 17, 2026, 5:15 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Fetal Heart Rate Changes and Labor Neuraxial Analgesia: a Machine Learning Approach

NCT05399979
View directory record Official record
Conditions
Fetal Bradycardia
Interventions
Labor Neuraxial Analgesia
Procedure
Lead sponsor
Augusta University
Other
Eligibility
18 Years and older · Female only
Enrollment
1,077 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Augusta, Georgia
Source: ClinicalTrials.gov public record
Updated Jun 2, 2022 · Synced Sep 17, 2026, 5:15 AM EDT
Active, not recruiting No phase listed Observational

Longitudinal Coverage With Evidence Development Study on Micra AV Leadless Pacemakers (Micra AV CED)

NCT04235491
View directory record Official record
Conditions
Bradycardia
Interventions
Not listed
Lead sponsor
Medtronic
Industry
Eligibility
Not listed
Enrollment
37,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2029
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Sep 28, 2025 · Synced Sep 17, 2026, 5:15 AM EDT
Completed No phase listed Observational Results available

INGEVITY+ Active Fixation Pace/Sense Lead Clinical Study

NCT04346537
View directory record Official record
Conditions
Bradycardia
Interventions
INGEVITY+™ Pace/Sense Lead
Device
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
18 Years and older
Enrollment
109 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
13
States / cities
Huntsville, Alabama • Jonesboro, Arkansas • Torrance, California + 10 more
Source: ClinicalTrials.gov public record
Updated Jul 13, 2022 · Synced Sep 17, 2026, 5:15 AM EDT
Recruiting Not applicable Interventional

The Effect of Womb Recordings on Maturation of Respiratory Control in Preterm Infants

NCT05298748
View directory record Official record
Conditions
Apnea of Prematurity, Intermittent Hypoxemia, Bradycardia
Interventions
Womb sound recordings
Other
Lead sponsor
Case Western Reserve University
Other
Eligibility
1 Week to 5 Weeks
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 4, 2025 · Synced Sep 17, 2026, 5:15 AM EDT
Completed No phase listed Observational Results available

Model 4965 Post-Approval Study

NCT01076348
View directory record Official record
Conditions
Heart Failure, Pacing, Bradycardia, Arrhythmia
Interventions
Not listed
Lead sponsor
Medtronic
Industry
Eligibility
19 Years and older
Enrollment
73 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1996 – 2011
U.S. locations
84
States / cities
Birmingham, Alabama • Anchorage, Alaska • Phoenix, Arizona + 81 more
Source: ClinicalTrials.gov public record
Updated Feb 26, 2019 · Synced Sep 17, 2026, 5:15 AM EDT
Completed Not applicable Interventional

Accuracy of the Apple Watch Series 4 for Detection of Heart Rhythm: A Pilot Study

NCT03798613
View directory record Official record
Conditions
Heart Rate Fast, Heart Rate Low
Interventions
Apple Watch 4 Series Device, Continuous Telemetry Monitor
Device
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Apr 8, 2019 · Synced Sep 17, 2026, 5:15 AM EDT
Terminated Phase 2Phase 3 Interventional Results available

Specialized Pacing for Patients With Congenital Heart Disease

NCT03361189
View directory record Official record
Conditions
Congenital Heart Disease, Bradycardia Sinus
Interventions
Closed loop stimulation, Standard rate response
Device
Lead sponsor
University of California, Los Angeles
Other
Eligibility
14 Years to 65 Years
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jan 19, 2023 · Synced Sep 17, 2026, 5:15 AM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Detection and Classification of Cardiac Rhythm and Atrial Fibrillation Using a Finger-worn Ring

NCT06892938
View directory record Official record
Conditions
Atrial Fibrillation (AF), Arrhythmias Cardiac, Tachycardia, Palpitations, Bradycardia
Interventions
Atrial Fibrillation Identification
Diagnostic Test
Lead sponsor
Everbeat
Industry
Eligibility
18 Years and older
Enrollment
232 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
3
States / cities
La Jolla, California • Baton Rouge, Louisiana • Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 26, 2025 · Synced Sep 17, 2026, 5:15 AM EDT
Completed No phase listed Observational Results available

Verification of Prediction Algorithm

NCT02863666
View directory record Official record
Conditions
Shortness of Breath Episode, Tachycardia, Bradycardia, Difficulty Breathing
Interventions
Not listed
Lead sponsor
Zoll Medical Corporation
Industry
Eligibility
18 Years and older
Enrollment
673 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
2
States / cities
Birmingham, Alabama • Royal Oak, Michigan
Source: ClinicalTrials.gov public record
Updated May 12, 2024 · Synced Sep 17, 2026, 5:15 AM EDT
Active, not recruiting No phase listed Observational

Cardiac Implantable Electronic Device (CIED) Research Study

NCT05061862
View directory record Official record
Conditions
Arrhythmias, Cardiac, Bradycardia, Tachycardia
Interventions
cardiac implantable electronic devices (CIEDs)
Device
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
18 Years and older
Enrollment
1,000 participants
Timeline
2022 – 2026
U.S. locations
8
States / cities
Gainesville, Florida • Macon, Georgia • Portland, Oregon + 5 more
Source: ClinicalTrials.gov public record
Updated Dec 9, 2025 · Synced Sep 17, 2026, 5:15 AM EDT
Completed Not applicable Interventional

Prematurity Related Ventilatory Control (PRE-VENT) - Specific Aim 2

NCT03333161
View directory record Official record
Conditions
Infant,Premature
Interventions
Cardiorespiratory monitoring
Diagnostic Test
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
1 Day to 15 Days
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Sep 20, 2021 · Synced Sep 17, 2026, 5:15 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 17, 2026, 5:15 AM EDT