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ClinicalTrials.gov public records Last synced Sep 14, 2026, 7:05 AM EDT

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Showing 1–24 of 36 matching trials from the live ClinicalTrials.gov search.
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Conditions
Atrial Fibrillation
Interventions
VARIPULSE Catheter System, LAAO Device
Device
Lead sponsor
Biosense Webster, Inc.
Industry
Eligibility
18 Years to 80 Years
Enrollment
1,070 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2031
U.S. locations
3
States / cities
Tucson, Arizona • Jonesboro, Arkansas • The Bronx, New York
Suspended Not applicable Interventional

The CONFORM Pivotal Trial

NCT05147792
Conditions
Atrial Fibrillation, Stroke
Interventions
CLAAS, WATCHMAN left atrial appendage closure device / Amulet left atrial appendage occluder
Device
Lead sponsor
Conformal Medical, Inc
Industry
Eligibility
18 Years and older
Enrollment
1,600 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2031
U.S. locations
78
States / cities
Birmingham, Alabama • Phoenix, Arizona • Scottsdale, Arizona + 66 more
Active, not recruiting Not applicable Interventional

Amplatzer Amulet LAAO vs. NOAC

NCT04226547
Conditions
Atrial Fibrillation, Stroke, Bleeding
Interventions
Left Atrial Appendage Occlusion (Amplatzer Amulet LAA Occluder), Non-Vitamin K Oral Antagonists
Device · Drug
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
2,650 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2031
U.S. locations
79
States / cities
Birmingham, Alabama • Huntsville, Alabama • Phoenix, Arizona + 65 more
Conditions
Heart Diseases
Interventions
LAAx, Inc. TigerPaw® System II
Device
Lead sponsor
LAAx, Inc.
Industry
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015
U.S. locations
4
States / cities
Pleasanton, California • Baltimore, Maryland • Danville, Pennsylvania + 1 more
Completed No phase listed Observational

Peri-device Leakage Closure After LAAO

NCT04590898
Conditions
Atrial Fibrillation, Stroke, Bleeding, Leakage of Cardiac Device
Interventions
Peri-device leakage closure after left atrial appendage occlusion
Device
Lead sponsor
Cardiovascular Center Frankfurt
Other
Eligibility
18 Years to 100 Years
Enrollment
85 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
7
States / cities
Phoenix, Arizona • La Jolla, California • Overland Park, Kansas + 4 more
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

The CONFORMAL Early Feasibility Study

NCT03616028
Conditions
Non-valvular Atrial Fibrillation
Interventions
left atrial appendage closure
Device
Lead sponsor
Conformal Medical, Inc
Industry
Eligibility
18 Years and older
Enrollment
64 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2028
U.S. locations
11
States / cities
Jonesboro, Arkansas • Santa Monica, California • Manchester, New Hampshire + 7 more
Conditions
Atrial Fibrillation, Stroke
Interventions
WATCHMAN Left Atrial Appendage Closure Technology, Warfarin
Device · Drug
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
18 Years and older
Enrollment
800 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2014
U.S. locations
58
States / cities
Gilbert, Arizona • Scottsdale, Arizona • La Jolla, California + 46 more
Not listed No phase listed Observational

APPEND-CT Registry

NCT06213285
Conditions
Stroke, Ischemic, Device Related Thrombosis, Atrial Fibrillation
Interventions
Watchman FLX left atrial appendage occlusion
Device
Lead sponsor
Aarhus University Hospital
Other
Eligibility
18 Years and older
Enrollment
2,000 participants
Timeline
2024 – 2025
U.S. locations
1
States / cities
Rochester, Minnesota
Conditions
Atrial Fibrillation
Interventions
Not listed
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2008
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Conditions
Atrial Fibrillation, Left Atrial Appendage Thrombosis, CVA
Interventions
LAmbre PlusTM Left Atrial Appendage Closure System, Market approved oral anticoagulation (OAC), such as warfarin (Coumadin), dabigatran (Pradaxa), rivaroxaban (Xarelto), apixiban (Eliquis), edoxaban (Savaysa), or betrixaban (Bevyxxa)
Device · Drug
Lead sponsor
Brian O'Neill MD
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024
U.S. locations
1
States / cities
Detroit, Michigan
Conditions
Device-Related Thrombosis, Atrial Fibrillation, Left Atrial Appendage Occlusion
Interventions
ASA plus Clopidogrel, Genetic-Tailored AntiThrombotic Strategy, Half-Dose of novel OAC
Drug
Lead sponsor
Texas Cardiac Arrhythmia Research Foundation
Other
Eligibility
18 Years and older
Enrollment
360 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Austin, Texas
Active, not recruiting No phase listed Observational

Amulet™ ADVANCE LAA

NCT05997446
Conditions
Atrial Fibrillation, Stroke, Bleeding
Interventions
Left atrial appendage occlusion (LAAO)
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
610 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
16
States / cities
Phoenix, Arizona • Little Rock, Arkansas • Jacksonville, Florida + 13 more
Not listed Not applicable Interventional

RF Applications for Residual LAA Leaks

NCT04726943
Conditions
Left Atrial Appendage Thrombosis, Stroke, Ischemic, Atrial Fibrillation
Interventions
Radiofrequency Energy Applications
Procedure
Lead sponsor
Texas Cardiac Arrhythmia Research Foundation
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
2
States / cities
Overland Park, Kansas • Austin, Texas
Conditions
Device Related Thrombosis, Peri-device Leak
Interventions
Transesophageal echocardiography (TEE), Cardiac CTA
Procedure
Lead sponsor
University Hospitals Cleveland Medical Center
Other
Eligibility
18 Years and older
Enrollment
320 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
5
States / cities
Los Angeles, California • Roslyn, New York • Charlotte, North Carolina + 2 more
Conditions
Atrial Fibrillation, Stroke
Interventions
Left atrial appendage occlusion with the dual mechanism closure Amulet device using a novel steerable sheath.
Other
Lead sponsor
Kansas City Heart Rhythm Research Foundation
Other
Eligibility
18 Years and older
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
7
States / cities
Overland Park, Kansas • Independence, Missouri • Kansas City, Missouri
Conditions
Atrial Fibrillation
Interventions
Left Atrial Appendage Device Implant
Device
Lead sponsor
Heart Rhythm Clinical and Research Solutions, LLC
Other
Eligibility
18 Years and older
Enrollment
569 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
7
States / cities
Birmingham, Alabama • Tucson, Arizona • Aurora, Colorado + 4 more
Conditions
Left Atrial Appendage Occlusion
Interventions
Medtronic LAA Occlusion Device
Device
Lead sponsor
Medtronic Cardiovascular
Industry
Eligibility
18 Years to 80 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
5
States / cities
Rancho Mirage, California • New Haven, Connecticut • Chicago, Illinois + 2 more
Conditions
Coronary Artery Disease, Atrial Fibrillation (AF)
Interventions
Hybrid procedure, Endocardial ablations, left atrial appendage occlusion
Procedure
Lead sponsor
Cardiovascular Innovation and Research Institute
Other
Eligibility
18 Years and older
Enrollment
1,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2030
U.S. locations
1
States / cities
Glenwood Springs, Colorado
Conditions
Persistent Atrial Fibrillation
Interventions
cryoballoon ablation
Device
Lead sponsor
Staten Island University Hospital
Other
Eligibility
18 Years to 80 Years
Enrollment
62 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
New York, New York
Conditions
Atrial Fibrillation
Interventions
Not listed
Lead sponsor
CorVita Science Foundation
Other
Eligibility
18 Years and older
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2027
U.S. locations
1
States / cities
Chicago, Illinois
Conditions
Left Atrial Appendage Incomplete Closure
Interventions
Interlock-35 Fibered IDC Occlusion System, Concerto Helix Detachable Coil System, Azur Peripheral Coil System
Device
Lead sponsor
Texas Cardiac Arrhythmia Research Foundation
Other
Eligibility
18 Years and older
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
1
States / cities
Austin, Texas
Conditions
Atrial Fibrillation
Interventions
Left Atrial Appendage Occlusion
Procedure
Lead sponsor
American College of Cardiology
Other
Eligibility
18 Years and older
Enrollment
3,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2029
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Conditions
Atrial Fibrillation, Stroke, Ischemic, Systemic Embolism
Interventions
WATCHMAN device
Device
Lead sponsor
Hamilton Health Sciences Corporation
Other
Eligibility
18 Years and older
Enrollment
4,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2029
U.S. locations
50
States / cities
Birmingham, Alabama • Jonesboro, Arkansas • Fountain Valley, California + 45 more
Conditions
Nonvalvular Atrial Fibrillation, Severe Degenerative Mitral Regurgitation
Interventions
MitraClip TMVR and Watchman LAAO
Procedure
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
1
States / cities
Rochester, Minnesota