Medical Information Only. Consult your healthcare provider before considering clinical trial enrollment.
Bradycardia: later-stage trial registry
11 of 30 indexed Bradycardia trials are currently recruiting, with more weight in Phase 3-4.
Corpus placement: #519 of 28,707 conditions by registered trial count.
30 US clinical trials · 11 currently recruiting · #519 of 28,707 conditions by registered trial count
Bradycardia: 30 US clinical trials tracked, 11 recruiting.
Bradycardia is the subject of 30 registered US clinical trials on ClinicalTrials.gov, 11 of them currently open to new participants. 3 are in Phase 3-4 (later-stage) and 0 in Phase 1-2 (earlier-stage). The most active sponsor is Abbott Medical Devices, running 8 of these trials.
Enrollment posture brief
Registry condition bradycardia
OPEN 11 | RECR 37% | LATE 3 | EARLY 0 | RANK #519 | SPON 8
Volume-matched condition peers
Nearest open-share peer: Bariatric Surgery Candidate (37% recruiting · 30 trials)
Bradycardia lists 11 open slots (37% of 30 indexed trials). Peers are matched on registered volume, not therapeutic-area browse lists. How peer matching works →
Key findings
What ClinicalTrials.gov does not surface for Bradycardia on its own pages , computed from the registry mirror as of 2026-08-08. Each line carries its own denominator so it can be quoted as it stands.
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Bradycardia is recruiting below its size-band peers.
11 of 30 indexed trials (36.7%) are open to enrollment, against a 39.7% average across 762 conditions with 20-99 trials. The peer set uses the same ClinicalTrials.gov-derived counts as this page.
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One sponsor concentrates Bradycardia research.
Abbott Medical Devices accounts for 8 of 30 trials (26.7%). 12 distinct sponsors appear on at least one study for this condition label.
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Typical Bradycardia enrolment sits around 860 participants.
Median target enrolment is 860 among the 30 trials that report a genuine target (sentinel values excluded). 6 of those (20%) plan for fewer than 100 participants.
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Bradycardia research leans observational.
12 interventional and 18 observational studies make up this index (40% interventional). Study type is sponsor-reported on ClinicalTrials.gov.
Open and recent trials
30 total, page 1 of 1
Product Performance Report: Evaluate Long-term Reliability & Performance of Medtronic Marketed Cardiac Therapy Products
Medtronic
NCT00271180
Aveir VR Coverage With Evidence Development Post-Approval Study
Abbott Medical Devices
NCT05336877
The Alaska Oculocardiac Reflex Study
Alaska Blind Child Discovery
NCT04353960
AVEIR DR Coverage With Evidence Development (CED) Study
Abbott Medical Devices
NCT05932602
Aveir VR Real-World Evidence Post-Approval Study
Abbott Medical Devices
NCT05270499
Aveir DR Real-World Evidence Post-Approval Study
Abbott Medical Devices
NCT05935007
Aveir AR Coverage With Evidence Development (CED) Study
Abbott Medical Devices
NCT06100770
Ultra-High Frequency - Electrocardiogram (UHF-ECG) for the Diagnosis of Ventricular Electrical Dyssynchrony (VED)
VDI Technologies
NCT06641362
His Bundle Pacing in Bradycardia and Heart Failure
Yong-Mei Cha
NCT03008291
The Effect of Womb Recordings on Maturation of Respiratory Control in Preterm Infants
Case Western Reserve University
NCT05298748
Augmented Pacing for Shock in the Cardiac Intensive Care Unit
Vanderbilt University Medical Center
NCT06713668
Longitudinal Coverage With Evidence Development Study on Micra Leadless Pacemakers
Medtronic
NCT03039712
Longitudinal Coverage With Evidence Development Study on Micra AV Leadless Pacemakers (Micra AV CED)
Medtronic
NCT04235491
Micra Transcatheter Pacing System Post-Approval Registry
Medtronic
NCT02536118
Cardiac Implantable Electronic Device (CIED) Research Study
Medtronic Cardiac Rhythm and Heart Failure
NCT05061862
Aveir DR i2i Study
Abbott Medical Devices
NCT05252702
The LEADLESS II IDE Study for the Aveir VR Leadless Pacemaker System
Abbott Medical Devices
NCT04559945
Detection and Classification of Cardiac Rhythm and Atrial Fibrillation Using a Finger-worn Ring
Everbeat
NCT06892938
BIOTRONIK Conduction System Pacing With the Solia Lead - Solia CSP S
Biotronik
NCT06540079
MEDTRONIC ADAPTA, VERSA AND SENSIA nEw3 POST APPROVAL STUDY
Medtronic
NCT01076374
Effectiveness of Pacemaker With Closed Loop Stimulation Compared to Pacemakers With and Without Standard Rate Response
Biotronik
NCT00355797
ULTRA Study for Pacemaker Patients
Boston Scientific Corporation
NCT00133289
VIBRANT Registry: Value of Information Based From Pacemaker Recordings and New Technologies
Medtronic Cardiac Rhythm and Heart Failure
NCT00294034
CAPTURE - Complete Automatic Pacing Threshold Utilization Recorded by EnPulse
Medtronic Cardiac Rhythm and Heart Failure
NCT00275769
EMRI SureScan™ Clinical Study
Medtronic Cardiac Rhythm and Heart Failure
NCT00433654
SITELINE 2 Polyurethane
Boston Scientific Corporation
NCT00180284
Patient Preferences for Leadless Pacemakers
Abbott Medical Devices
NCT05327101
Model 4965 Post-Approval Study
Medtronic
NCT01076348
Feasibility Study of Remote Support for Implantable Pulse Generator (IPG)/Implantable Cardioverter Defibrillator (ICD) Implant
Medtronic Cardiac Rhythm and Heart Failure
NCT01809652
ECG Belt to Assess Electrical Synchronization
Pugazhendhi Vijayaraman
NCT04583709
Phase Distribution
| Phase | Trial count |
|---|---|
| Phase 3 | 1 |
| Phase 4 | 2 |
Top Sponsors
Named interventions
Most-linked intervention names on Bradycardia records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.
US sites by state
Facility locations filed on Bradycardia trials. A trial with sites in several states counts in each.
Source: ClinicalTrials.gov, National Library of Medicine. Data is informational only.
Related
What to do with this Bradycardia page
30 registered trials, 11 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.
- 11 Bradycardia trials are currently recruiting, check eligibility criteria before contacting a site. Browse recruiting trials
- Abbott Medical Devices sponsors the most Bradycardia trials on record, review their full trial history before evaluating a specific study. See Abbott Medical Devices's trials
- Bring the specific trial ID (NCT number) to your own doctor before enrolling, this page is a directory, not medical guidance. Read the trial-finding guide
Trial and recruiting counts reflect ClinicalTrials.gov registry status as of the data vintage above; individual trial eligibility and enrollment status can change.
Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. This Bradycardia condition card totals 30 registered trials; most-linked intervention Aveir DR Leadless Pacemaker System; top US site state California. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.