Medical Information Only. Consult your healthcare provider before considering clinical trial enrollment.

2026 data Public-data reference. official source

Bradycardia

Open-data reference.

30 US clinical trials · 11 currently recruiting

Active & Recent Trials

RECRUITING 20,000 participants

Product Performance Report: Evaluate Long-term Reliability & Performance of Medtronic Marketed Cardiac Therapy Products

Medtronic

NCT00271180

RECRUITING 8,744 participants

Aveir VR Coverage With Evidence Development Post-Approval Study

Abbott Medical Devices

NCT05336877

RECRUITING 4,000 participants

The Alaska Oculocardiac Reflex Study

Alaska Blind Child Discovery

NCT04353960

RECRUITING 2,812 participants

AVEIR DR Coverage With Evidence Development (CED) Study

Abbott Medical Devices

NCT05932602

RECRUITING 2,100 participants

Aveir VR Real-World Evidence Post-Approval Study

Abbott Medical Devices

NCT05270499

RECRUITING 1,805 participants

Aveir DR Real-World Evidence Post-Approval Study

Abbott Medical Devices

NCT05935007

RECRUITING 586 participants

Aveir AR Coverage With Evidence Development (CED) Study

Abbott Medical Devices

NCT06100770

RECRUITING 360 participants

Ultra-High Frequency - Electrocardiogram (UHF-ECG) for the Diagnosis of Ventricular Electrical Dyssynchrony (VED)

VDI Technologies

NCT06641362

RECRUITING 80 participants

His Bundle Pacing in Bradycardia and Heart Failure

Yong-Mei Cha

NCT03008291

RECRUITING NA 34 participants

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

Case Western Reserve University

NCT05298748

RECRUITING NA 25 participants

Augmented Pacing for Shock in the Cardiac Intensive Care Unit

Vanderbilt University Medical Center

NCT06713668

ACTIVE NOT RECRUITING 37,000 participants

Longitudinal Coverage With Evidence Development Study on Micra Leadless Pacemakers

Medtronic

NCT03039712

ACTIVE NOT RECRUITING 37,000 participants

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

Medtronic

NCT04235491

ACTIVE NOT RECRUITING 3,100 participants

Micra Transcatheter Pacing System Post-Approval Registry

Medtronic

NCT02536118

ACTIVE NOT RECRUITING 1,000 participants

Cardiac Implantable Electronic Device (CIED) Research Study

Medtronic Cardiac Rhythm and Heart Failure

NCT05061862

ACTIVE NOT RECRUITING NA 464 participants

Aveir DR i2i Study

Abbott Medical Devices

NCT05252702

ACTIVE NOT RECRUITING NA 326 participants

The LEADLESS II IDE Study for the Aveir VR Leadless Pacemaker System

Abbott Medical Devices

NCT04559945

ACTIVE NOT RECRUITING 232 participants

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

Everbeat

NCT06892938

ACTIVE NOT RECRUITING NA 192 participants

BIOTRONIK Conduction System Pacing With the Solia Lead - Solia CSP S

Biotronik

NCT06540079

COMPLETED 2,927 participants

MEDTRONIC ADAPTA, VERSA AND SENSIA nEw3 POST APPROVAL STUDY

Medtronic

NCT01076374

COMPLETED Phase 4 1,491 participants

Effectiveness of Pacemaker With Closed Loop Stimulation Compared to Pacemakers With and Without Standard Rate Response

Biotronik

NCT00355797

COMPLETED Phase 4 950 participants

ULTRA Study for Pacemaker Patients

Boston Scientific Corporation

NCT00133289

COMPLETED 950 participants

VIBRANT Registry: Value of Information Based From Pacemaker Recordings and New Technologies

Medtronic Cardiac Rhythm and Heart Failure

NCT00294034

COMPLETED NA 860 participants

CAPTURE - Complete Automatic Pacing Threshold Utilization Recorded by EnPulse

Medtronic Cardiac Rhythm and Heart Failure

NCT00275769

COMPLETED NA 484 participants

EMRI SureScan™ Clinical Study

Medtronic Cardiac Rhythm and Heart Failure

NCT00433654

COMPLETED Phase 3 200 participants

SITELINE 2 Polyurethane

Boston Scientific Corporation

NCT00180284

COMPLETED 117 participants

Patient Preferences for Leadless Pacemakers

Abbott Medical Devices

NCT05327101

COMPLETED 73 participants

Model 4965 Post-Approval Study

Medtronic

NCT01076348

COMPLETED NA 37 participants

Feasibility Study of Remote Support for Implantable Pulse Generator (IPG)/Implantable Cardioverter Defibrillator (ICD) Implant

Medtronic Cardiac Rhythm and Heart Failure

NCT01809652

COMPLETED NA 20 participants

ECG Belt to Assess Electrical Synchronization

Pugazhendhi Vijayaraman

NCT04583709

Phase Distribution

PhaseTrial count
Phase 3 1
Phase 4 2

Source: ClinicalTrials.gov, National Library of Medicine. Data is informational only.

Reading the Bradycardia Trial Landscape

ClinicalTrials.gov lists 30 US studies indexed under Bradycardia, and 11 of those are currently open to recruitment — roughly 37% of the total volume on the registry. That ratio is a useful proxy for activity level: a high share of recruiting studies often signals that research interest is current and that new enrollment opportunities are appearing, while a low share typically means the field is dominated by completed or follow-up work where most participant spots have already been filled. These counts reflect the public registry only and include studies at every stage of design, so they should be read as an index of research attention rather than as a measure of treatment availability.

The phase distribution for Bradycardia shows 3 late-stage studies (Phase 3 and Phase 4 combined) alongside 0 earlier-phase entries (Phase 1 through Phase 2). Phase 1 and Phase 2 studies focus on early safety signals, dosing, and preliminary effect, while Phase 3 studies are typically the larger efficacy and safety trials submitted toward regulatory review, and Phase 4 studies follow approved interventions in real-world use. A condition weighted toward later phases often reflects a mature research pipeline with several interventions already close to or past approval, whereas a heavier early-phase tilt suggests the field is still exploring new mechanisms and candidate approaches.

Top sponsor activity for Bradycardia is led by Abbott Medical Devices with 8 indexed trials, alongside 9 other organizations in the top contributor list. The list on this page surfaces up to 30 of the most relevant recent and active entries, ordered with recruiting studies first so practical options are visible. All figures are derived from the public ClinicalTrials.gov dataset maintained by the National Library of Medicine and are reproduced here for reference. Inclusion of a trial, sponsor, or intervention on this page is neither an endorsement nor a recommendation — eligibility, protocol changes, and site-level status can shift frequently, so always verify current details on ClinicalTrials.gov and consult a qualified healthcare provider before acting on anything you see here.

Frequently Asked Questions

How many clinical trials are there for Bradycardia?

PlainTrial tracks 30 US clinical trials for Bradycardia, of which 11 are currently recruiting participants. Data sourced from ClinicalTrials.gov.

How do I find a recruiting trial for Bradycardia?

Use the trial list above filtered by "Recruiting" status, or visit our trial finder at /recruiting to search by condition and state. Always discuss trial participation with your healthcare provider before enrolling.

Is this data current?

Data is sourced from ClinicalTrials.gov and reflects our most recent data pull. Trial status may have changed since then. Always verify current information at ClinicalTrials.gov before making decisions about participation.

Related

Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainTrial Editorial

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from ClinicalTrials.gov (National Library of Medicine). Consult a qualified professional before making decisions based on this data.

Source: ClinicalTrials.gov (NIH/NLM) ClinicalTrials.gov AACT registry · 2024 Trial counts and statuses sourced from ClinicalTrials.gov. Sponsor counts include both industry and federal/academic sponsors.

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