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Showing 1–24 of 50 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Atrial Septal Defects Clear all
Withdrawn Not applicable Interventional

Patent Foramen Ovale (PFO) Closure at the Time of Endovascular Cardiac Electronic Device Implantation

NCT03232450
View directory record Official record
Conditions
Foramen Ovale, Patent
Interventions
Aspirin, Cardiovascular Implantable Device (CIED), Gore Cardioform Septal Occluder
Drug · Device
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 85 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Mar 12, 2020 · Synced Jun 28, 2026, 5:03 AM EDT
Not listed Not applicable Interventional

Stitch Closure of PFO and Septal Repair

NCT03373929
View directory record Official record
Conditions
Foramen Ovale, Patent, Septal Defect, Atrial, Septal Defect, Heart
Interventions
PFO Closure Rate, Published PFO Device Closure
Device
Lead sponsor
HeartStitch.Com
Industry
Eligibility
18 Years to 65 Years
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2022
U.S. locations
1
States / cities
Falls Church, Virginia
Source: ClinicalTrials.gov public record
Updated Dec 13, 2017 · Synced Jun 28, 2026, 5:03 AM EDT
Recruiting Not applicable Interventional

GORE® CARDIOFORM Septal Occluder and Antiplatelet Medical Management for Reduction of Recurrent Stroke in Patients With Patent Foramen Ovale (PFO): the REDUCE Post Approval Study

NCT03821129
View directory record Official record
Conditions
Stroke, PFO - Patent Foramen Ovale
Interventions
PFO closure with GORE® CARDIOFORM Septal Occluder
Device
Lead sponsor
W.L.Gore & Associates
Industry
Eligibility
18 Years to 70 Years
Enrollment
636 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2031
U.S. locations
45
States / cities
Tucson, Arizona • La Jolla, California • Loma Linda, California + 39 more
Source: ClinicalTrials.gov public record
Updated May 4, 2026 · Synced Jun 28, 2026, 5:03 AM EDT
Not listed Phase 2Phase 3 Interventional

Evaluation of the STARFlex® Septal Closure System in Patients With a Stroke or TIA Due to the Possible Passage of a Clot of Unknown Origin Through a Patent Foramen Ovale (PFO)

NCT00201461
View directory record Official record
Conditions
Patent Foramen Ovale, Stroke, Ischemic Attack, Transient
Interventions
STARFlex septal closure system, Best medical therapy
Device · Drug
Lead sponsor
NMT Medical
Industry
Eligibility
18 Years to 60 Years
Enrollment
900 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2010
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 29, 2008 · Synced Jun 28, 2026, 5:03 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Intravenous L-Citrulline to Treat Children Undergoing Heart Bypass Surgery : Revised Protocol

NCT01120964
View directory record Official record
Conditions
Atrial Septal Defect, Ventricular Septal Defect, Atrioventricular Septal Defect
Interventions
Intravenous L-Citrulline, Placebo of Intravenous L-Citrulline
Drug
Lead sponsor
Asklepion Pharmaceuticals, LLC
Industry
Eligibility
Up to 6 Years
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
2
States / cities
St Louis, Missouri • Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 26, 2022 · Synced Jun 28, 2026, 5:03 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Long-term Safety Study of the GORE® HELEX® Septal Occluder

NCT00581308
View directory record Official record
Conditions
Septal Defect, Atrial
Interventions
GORE® HELEX® Septal Occluder
Device
Lead sponsor
W.L.Gore & Associates
Industry
Eligibility
Not listed
Enrollment
215 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2014
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 18, 2018 · Synced Jun 28, 2026, 5:03 AM EDT
Active, not recruiting Not applicable Interventional

AMPLATZER PFO Occluder Post Approval Study

NCT03309332
View directory record Official record
Conditions
Stroke, Patent Foramen Ovale
Interventions
AMPLATZER™ PFO Occluder
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years to 60 Years
Enrollment
1,214 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2030
U.S. locations
78
States / cities
Birmingham, Alabama • Huntsville, Alabama • Chandler, Arizona + 63 more
Source: ClinicalTrials.gov public record
Updated Mar 10, 2026 · Synced Jun 28, 2026, 5:03 AM EDT
Terminated Phase 3 Interventional

Right to Left Cardiac Shunt Detection

NCT01773252
View directory record Official record
Conditions
Right to Left Shunt, Patent Foramen Ovale, Atrial Septal Defect
Interventions
Flow Detection System
Device
Lead sponsor
Cardiox Corporation
Industry
Eligibility
18 Years and older
Enrollment
141 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
8
States / cities
Phoenix, Arizona • Los Angeles, California • Aurora, Colorado + 5 more
Source: ClinicalTrials.gov public record
Updated Nov 12, 2015 · Synced Jun 28, 2026, 5:03 AM EDT
Recruiting No phase listed Observational

Pulmonary Embolism and Right-to-Left Shunts

NCT07519876
View directory record Official record
Conditions
Pulmonary Embolism (PE), Right-to-Left Shunt, Stroke, Atrial Septal Defects, Patent Foramen Ovale (PFO), Pulmonary Arteriovenous Malformation
Interventions
Not listed
Lead sponsor
Tufts Medical Center
Other
Eligibility
18 Years and older
Enrollment
256 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 8, 2026 · Synced Jun 28, 2026, 5:03 AM EDT
Completed Not applicable Interventional

Comparison of Lower vs Upper Extremity Injection Agitated Saline to Identify Patent Foramen Ovale With Echocardiography

NCT07009678
View directory record Official record
Conditions
Patent Foramen Ovale, Cryptogenic Stroke, Embolic Infarction
Interventions
intravenous access in greater saphenous vein compared to upper extremity site.
Diagnostic Test
Lead sponsor
St. John's Hospital
Other
Eligibility
18 Years and older
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Maple Grove, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 5, 2025 · Synced Jun 28, 2026, 5:03 AM EDT
Completed Not applicable Interventional Results available

Safety and Efficacy of the GORE® Septal Occluder to Treat Ostium Secundum Atrial Septal Defects

NCT01711983
View directory record Official record
Conditions
Septal Defect, Atrial
Interventions
GORE® CARDIOFORM Septal Occluder
Device
Lead sponsor
W.L.Gore & Associates
Industry
Eligibility
Not listed
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2018
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Aug 20, 2020 · Synced Jun 28, 2026, 5:03 AM EDT
Completed No phase listed Observational

Does Patent Foramen Ovale Size Matter in Men and Women

NCT03904277
View directory record Official record
Conditions
Patent Foramen Ovale
Interventions
Not listed
Lead sponsor
University of Oregon
Other
Eligibility
18 Years to 40 Years
Enrollment
28 participants
Timeline
2018 – 2023
U.S. locations
1
States / cities
Eugene, Oregon
Source: ClinicalTrials.gov public record
Updated Jan 31, 2023 · Synced Jun 28, 2026, 5:03 AM EDT
Completed Not applicable Interventional Results available

Safety and Efficacy Study of Transcatheter Closure of Ostium Secundum ASDs

NCT02985684
View directory record Official record
Conditions
Atrial Septal Defect
Interventions
GORE® CARDIOFORM ASD Occluder
Device
Lead sponsor
W.L.Gore & Associates
Industry
Eligibility
Not listed
Enrollment
125 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2022
U.S. locations
22
States / cities
Phoenix, Arizona • Los Angeles, California • Aurora, Colorado + 17 more
Source: ClinicalTrials.gov public record
Updated Mar 16, 2026 · Synced Jun 28, 2026, 5:03 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Regional Anesthesia Following Pediatric Cardiac Surgery

NCT05688670
View directory record Official record
Conditions
Atrial Septal Defect, Ventricular Septal Defect, Pain, Procedural
Interventions
Regional Anesthesia, Wound infiltration, Ropivacaine 0.2% Injectable Solution
Procedure · Drug
Lead sponsor
Duke University
Other
Eligibility
Up to 17 Years
Enrollment
52 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 27, 2025 · Synced Jun 28, 2026, 5:03 AM EDT
Not listed Not applicable Interventional

Radiation-Free Heart Catheterization Using MRI

NCT02739087
View directory record Official record
Conditions
Aortic Coarctation, Cardiomyopathy, Atrial Septal Defect, Aortic Stenosis, Post Heart Transplant Catheter Procedure, Patent Ductus Arteriosus
Interventions
MRI guided cardiac catheterization, Magnetic resonance imaging
Procedure · Device
Lead sponsor
Joshua Kanter
Other
Eligibility
Not listed
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2024
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Feb 5, 2024 · Synced Jun 28, 2026, 5:03 AM EDT
Not yet recruiting Phase 3 Interventional

Migraine Headaches Elimination With Patent Foramen Ovale-Directed Therapy

NCT07629635
View directory record Official record
Conditions
Migraine Disease, Patent Foramen Ovale
Interventions
Prasugrel 5mg, Transcatheter Closure of Patent Foramen Ovale
Drug · Device
Lead sponsor
Columbia University
Other
Eligibility
18 Years to 55 Years
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 4, 2026 · Synced Jun 28, 2026, 5:03 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers Results available

GORE® CARDIOFORM Septal Occluder Migraine Clinical Study

NCT04100135
View directory record Official record
Conditions
Migraine, Patent Foramen Ovale, PFO - Patent Foramen Ovale
Interventions
Actual device PFO closure, Thienopyridine (clopidogrel or prasugrel), Sham device PFO closure
Device · Drug
Lead sponsor
W.L.Gore & Associates
Industry
Eligibility
18 Years to 55 Years
Enrollment
7 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
15
States / cities
Phoenix, Arizona • Los Angeles, California • Santa Barbara, California + 11 more
Source: ClinicalTrials.gov public record
Updated Jun 8, 2026 · Synced Jun 28, 2026, 5:03 AM EDT
Terminated Phase 3 Interventional

A Study Evaluating the Efficacy and Safety of IV L-Citrulline for the Prevention of Clinical Sequelae of Acute Lung Injury Induced by Cardiopulmonary Bypass in Pediatric Patients Undergoing Surgery for Congenital Heart Defects

NCT05253209
View directory record Official record
Conditions
Ventricular Septal Defect, Atrioventricular Septal Defect, Primum Atrial Septal Defect
Interventions
L-citrulline, Plasmalyte A
Drug
Lead sponsor
Asklepion Pharmaceuticals, LLC
Industry
Eligibility
Up to 18 Years
Enrollment
64 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
10
States / cities
Birmingham, Alabama • Aurora, Colorado • Chicago, Illinois + 7 more
Source: ClinicalTrials.gov public record
Updated Sep 18, 2024 · Synced Jun 28, 2026, 5:03 AM EDT
Recruiting Not applicable Interventional

Early Feasibility Study (EFS) Evaluating Percutaneous Repair of the Atrial Septum With a Novel PFO Occluder: The PROTEA-PFO Study

NCT07172464
View directory record Official record
Conditions
PFO, PFO - Patent Foramen Ovale, Cryptogenic Stroke, Patent Foramen Ovale, PFO-associated Stroke
Interventions
Recross P3 Occluder (P3O) System
Device
Lead sponsor
Recross Cardio, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2031
U.S. locations
5
States / cities
Los Angeles, California • Gainesville, Florida • Boston, Massachusetts + 2 more
Source: ClinicalTrials.gov public record
Updated Mar 3, 2026 · Synced Jun 28, 2026, 5:03 AM EDT
Terminated Phase 3 Interventional

Cardiox Shunt Detection Technology Study

NCT01333761
View directory record Official record
Conditions
Patent Foramen Ovale
Interventions
Cardiox FDS
Device
Lead sponsor
Cardiox Corporation
Industry
Eligibility
18 Years and older
Enrollment
71 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
7
States / cities
Birmingham, Alabama • Phoenix, Arizona • Los Angeles, California + 4 more
Source: ClinicalTrials.gov public record
Updated Jan 8, 2013 · Synced Jun 28, 2026, 5:03 AM EDT
Completed Not applicable Interventional Results available

PREMIUM Migraine Trial

NCT00355056
View directory record Official record
Conditions
Migraine Headaches, Patent Foramen Ovale
Interventions
Sham Procedure, AMPLATZER PFO Occluder
Other · Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years to 65 Years
Enrollment
230 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2015
U.S. locations
30
States / cities
Phoenix, Arizona • Los Angeles, California • Colorado Springs, Colorado + 23 more
Source: ClinicalTrials.gov public record
Updated Jul 29, 2020 · Synced Jun 28, 2026, 5:03 AM EDT
Completed Not applicable Interventional Results available

Patent Foramen Ovale Closure or Medical Therapy After Stroke - RESPECT Trial

NCT00465270
View directory record Official record
Conditions
Cryptogenic Stroke
Interventions
AMPLATZER PFO Occluder, Standard of Care - Medical Management
Device · Other
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
18 Years to 60 Years
Enrollment
980 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2016
U.S. locations
61
States / cities
Birmingham, Alabama • Scottsdale, Arizona • Los Angeles, California + 52 more
Source: ClinicalTrials.gov public record
Updated Feb 17, 2019 · Synced Jun 28, 2026, 5:03 AM EDT
Not listed Phase 2Phase 3 Interventional

MIST II PFO-Migraine Trial With BioSTAR® Bioabsorbable Septal Repair Implant

NCT00283738
View directory record Official record
Conditions
Migraine, Aura, Patent Foramen Ovale
Interventions
BioSTAR Septal Repair Implant System, Sham Procedure
Device · Procedure
Lead sponsor
NMT Medical
Industry
Eligibility
18 Years to 60 Years
Enrollment
610 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
2
States / cities
Stamford, Connecticut • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jan 24, 2008 · Synced Jun 28, 2026, 5:03 AM EDT
Recruiting Not applicable Interventional

Encore PFO Closure Device - The PerFOrm Trial

NCT05537753
View directory record Official record
Conditions
Patent Foramen Ovale, Cryptogenic Stroke
Interventions
Encore PFO closure device, FDA-approved PFO closure device
Device
Lead sponsor
Encore Medical Inc.
Industry
Eligibility
18 Years to 60 Years
Enrollment
500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2030
U.S. locations
8
States / cities
Little Rock, Arkansas • La Jolla, California • Tampa, Florida + 5 more
Source: ClinicalTrials.gov public record
Updated Sep 18, 2024 · Synced Jun 28, 2026, 5:03 AM EDT