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ClinicalTrials.gov public records Last synced Oct 17, 2026, 2:49 PM EDT

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Showing 1–24 of 50 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Atrial Septal Defects Clear all
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 6, 2025 · Synced Oct 17, 2026, 2:49 PM EDT
Withdrawn Not applicable Interventional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 13, 2020 · Synced Oct 17, 2026, 2:49 PM EDT
Recruiting No phase listed Observational

Non-Invasive Detection of Right-to-Left Cardiac Shunts

NCT07420400
View directory record Official record
Conditions
Patent Foramen Ovale (PFO)
Interventions
Point-of-care ultrasound
Diagnostic Test
Lead sponsor
Scripps Health
Other
Eligibility
18 Years and older
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Feb 19, 2026 · Synced Oct 17, 2026, 2:49 PM EDT
Terminated No phase listed Observational

Nickel Allergy With Septal Closure Devices

NCT01068366
View directory record Official record
Conditions
Atrial Septal Defect, Patent Foramen Ovale, Allergic Reaction to Nickel
Interventions
Not listed
Lead sponsor
University of Utah
Other
Eligibility
18 Years and older
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated May 15, 2013 · Synced Oct 17, 2026, 2:49 PM 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 6, 2024 · Synced Oct 17, 2026, 2:49 PM 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 21, 2020 · Synced Oct 17, 2026, 2:49 PM 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 19, 2024 · Synced Oct 17, 2026, 2:49 PM 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 27, 2022 · Synced Oct 17, 2026, 2:49 PM 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 19, 2024 · Synced Oct 17, 2026, 2:49 PM EDT
Completed Not applicable Interventional Results available

GORE® Septal Occluder Device for Patent Foramen Ovale (PFO) Closure in Stroke Patients

NCT00738894
View directory record Official record
Conditions
Stroke, Transient Ischemic Attack
Interventions
Septal Occluder Device, Antiplatelet Medical Therapy
Device · Drug
Lead sponsor
W.L.Gore & Associates
Industry
Eligibility
18 Years to 60 Years
Enrollment
664 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2020
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Nov 20, 2020 · Synced Oct 17, 2026, 2:49 PM 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 30, 2008 · Synced Oct 17, 2026, 2:49 PM 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 Jul 30, 2026 · Synced Oct 17, 2026, 2:49 PM 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 Feb 1, 2023 · Synced Oct 17, 2026, 2:49 PM EDT
Active, not recruiting Not applicable Interventional

Comparing PFO Outcomes of the Occlutech Flex II PFO Occluder to Standard of Care PFO Occlusion

NCT05069558
View directory record Official record
Conditions
Stroke, Patent Foramen Ovale, PFO
Interventions
Investigational PFO Closure Device, Standard of Care PFO Closure Device
Device
Lead sponsor
Occlutech International AB
Industry
Eligibility
18 Years and older
Enrollment
450 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2029
U.S. locations
27
States / cities
Phoenix, Arizona • Stanford, California • Thousand Oaks, California + 20 more
Source: ClinicalTrials.gov public record
Updated Oct 16, 2026 · Synced Oct 17, 2026, 2:49 PM EDT
Completed No phase listed Observational Results available

Comorbidities Associated With Migraine and Patent Foramen Ovale (CAMP)

NCT01257880
View directory record Official record
Conditions
Migraine With Aura, Patent Foramen Ovale
Interventions
Not listed
Lead sponsor
Swedish Medical Center
Other
Eligibility
18 Years to 55 Years
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
2
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Sep 27, 2011 · Synced Oct 17, 2026, 2:49 PM 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 19, 2018 · Synced Oct 17, 2026, 2:49 PM EDT
Completed Not applicable Interventional Results available

Closure of Atrial Septal Defects With the AMPLATZER Septal Occluder - Post Approval Study

NCT00650936
View directory record Official record
Conditions
Atrial Septal Defect
Interventions
AMPLATZER Septal Occluder
Device
Lead sponsor
Abbott Medical Devices
Industry
Eligibility
Not listed
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2014
U.S. locations
51
States / cities
Birmingham, Alabama • Los Angeles, California • Madera, California + 44 more
Source: ClinicalTrials.gov public record
Updated Jul 9, 2019 · Synced Oct 17, 2026, 2:49 PM 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 30, 2020 · Synced Oct 17, 2026, 2:49 PM EDT
Completed Not applicable Interventional Results available

RoBotic TCD Ultrasound BubbLe Study Compared to Transthoracic Echocardiography for Detection of Right to Left Shunt

NCT04604015
View directory record Official record
Conditions
Embolic Stroke of Undetermined Source, Transient Ischemic Attack, Right-To-Left Atrial Shunt, Patent Foramen Ovale
Interventions
NeuralBot Investigational System, Transthoracic Echocardiography (TTE)
Diagnostic Test
Lead sponsor
NeuraSignal Inc dba NovaSignal
Industry
Eligibility
18 Years and older
Enrollment
154 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
7
States / cities
Phoenix, Arizona • Portland, Oregon • Chattanooga, Tennessee + 3 more
Source: ClinicalTrials.gov public record
Updated Jan 24, 2024 · Synced Oct 17, 2026, 2:49 PM EDT
Completed Phase 2 Interventional Results available

Safety Study of Varisolve® Procedure for Treatment of Varicose Veins in Patients With Right-to-left Cardiac Shunt

NCT00442364
View directory record Official record
Conditions
Varicose Veins
Interventions
Polidocanol (1%) Microfoam (Varisolve), Endovenous Microfoam Occlusion
Drug · Procedure
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
18 Years to 60 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
7
States / cities
Los Angeles, California • Durham, North Carolina • Winston-Salem, North Carolina + 4 more
Source: ClinicalTrials.gov public record
Updated Apr 21, 2021 · Synced Oct 17, 2026, 2:49 PM 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 25, 2008 · Synced Oct 17, 2026, 2:49 PM 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 13, 2015 · Synced Oct 17, 2026, 2:49 PM EDT
Not listed No phase listed Observational

International PFO Consortium

NCT00859885
View directory record Official record
Conditions
Stroke, Transient Ischemic Attack
Interventions
Antithrombotic treatment, percutaneous device closure of PFO
Drug · Device
Lead sponsor
Insel Gruppe AG, University Hospital Bern
Other
Eligibility
18 Years and older
Enrollment
1,500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2021
U.S. locations
3
States / cities
Boston, Massachusetts • Springfield, Massachusetts • Tyler, Texas
Source: ClinicalTrials.gov public record
Updated Dec 12, 2017 · Synced Oct 17, 2026, 2:49 PM EDT
Withdrawn Phase 3 Interventional

Iatrogenic Atrial Septal Defect Study (iASD)

NCT04395027
View directory record Official record
Conditions
Septal Defect, Atrial
Interventions
atrial septal defect closure
Device
Lead sponsor
Henry Ford Health System
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Detroit, Michigan
Source: ClinicalTrials.gov public record
Updated Dec 8, 2022 · Synced Oct 17, 2026, 2:49 PM EDT