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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Congenital Heart Defects Clear all
Completed Not applicable Interventional

Re-Energize Fontan

NCT04195451
View directory record Official record
Conditions
Single-ventricle
Interventions
Live-Video-Supervised Exercise Intervention, Usual Care then Live-Video Supervised Exercise Intervention
Other
Lead sponsor
Stanford University
Other
Eligibility
8 Years to 19 Years
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Jun 21, 2026 · Synced Jul 21, 2026, 1:26 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 8, 2019 · Synced Jul 21, 2026, 1:26 PM EDT
Completed Not applicable Interventional

Transitional Telehealth Home Care: REACH

NCT01941667
View directory record Official record
Conditions
Congenital Heart Disease, Post Cardiac Surgery
Interventions
Daily Messages, Virtual Home Visits, Usual Care
Behavioral · Other
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
2 Weeks to 5 Months
Enrollment
218 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2017
U.S. locations
2
States / cities
Cincinnati, Ohio • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 2, 2017 · Synced Jul 21, 2026, 1:26 PM EDT
Terminated Phase 3 Interventional

Angiotensin Converting Enzyme Inhibition in Children With Mitral Regurgitation

NCT00113698
View directory record Official record
Conditions
Heart Defects, Congenital, Heart Septal Defects, Ventricular, Heart Failure, Congestive
Interventions
Enalapril, Placebo
Drug · Other
Lead sponsor
University of Utah
Other
Eligibility
Up to 18 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2006
U.S. locations
6
States / cities
Boston, Massachusetts • New York, New York • Durham, North Carolina + 3 more
Source: ClinicalTrials.gov public record
Updated Mar 12, 2014 · Synced Jul 21, 2026, 1:26 PM EDT
Completed Phase 3 Interventional Results available

Trial of Angiotensin Converting Enzyme Inhibition in Infants With Single Ventricle--Pediatric Heart Network

NCT00113087
View directory record Official record
Conditions
Heart Defects, Congenital, Heart Failure, Congestive
Interventions
Enalapril, Placebo
Drug
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
Up to 45 Days
Enrollment
230 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2008
U.S. locations
8
States / cities
Boston, Massachusetts • New York, New York • Durham, North Carolina + 5 more
Source: ClinicalTrials.gov public record
Updated Sep 27, 2010 · Synced Jul 21, 2026, 1:26 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Influence of Testosterone Administration on Drug-Induced QT Interval Prolongation and Torsades de Pointes

NCT02513940
View directory record Official record
Conditions
Long QT Syndrome
Interventions
Testosterone, Progesterone, Placebo, Ibutilide
Drug
Lead sponsor
Indiana University
Other
Eligibility
65 Years and older · Male only
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Aug 27, 2019 · Synced Jul 21, 2026, 1:26 PM EDT
Completed Not applicable Interventional

Study of the Native Outflow Tract Transcatheter Pulmonary Valve (TPV)

NCT01762124
View directory record Official record
Conditions
Congenital Heart Disease, Tetralogy of Fallot
Interventions
Native Outflow Tract TPV
Device
Lead sponsor
Medtronic Heart Valves
Industry
Eligibility
Not listed
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2020
U.S. locations
2
States / cities
Boston, Massachusetts • Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 6, 2020 · Synced Jul 21, 2026, 1:26 PM EDT
Completed No phase listed Observational

Cardiac Remodeling and Circulating Biomarkers in Pediatric Left Ventricular Pressure Loading Lesions

NCT02545790
View directory record Official record
Conditions
Coarctation of Aorta, Aortic Stenosis, Cardiac Hypertrophy
Interventions
Echocardiogram, Serology
Procedure · Biological
Lead sponsor
University of Colorado, Denver
Other
Eligibility
Up to 18 Years
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2020
U.S. locations
1
States / cities
Denver, Colorado
Source: ClinicalTrials.gov public record
Updated Jan 18, 2021 · Synced Jul 21, 2026, 1:26 PM EDT
Completed No phase listed Observational

Cardiac Biomarkers in Patients With Single Ventricle Physiology

NCT03678909
View directory record Official record
Conditions
Hypoplastic Left Heart, Congenital Heart Disease, Cyanotic Congenital Heart Disease, Cardiac Disease
Interventions
Norwood Palliation / DKS / Damus-Kaye-Stansel procedure
Procedure
Lead sponsor
Baylor College of Medicine
Other
Eligibility
Up to 2 Months
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Aug 2, 2020 · Synced Jul 21, 2026, 1:26 PM EDT
Completed Early Phase 1 Interventional

Study Using Citrate to Replace Heparin in Babies Requiring Extracorporeal Membrane Oxygenation (ECMO)

NCT00968565
View directory record Official record
Conditions
Heart Defects, Congenital, Respiratory Insufficiency
Interventions
sodium citrate
Drug
Lead sponsor
Vanderbilt University
Other
Eligibility
1 Day to 1 Year
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2015
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jun 2, 2015 · Synced Jul 21, 2026, 1:26 PM EDT
Completed Not applicable Interventional Results available

Comparison of Two Types of Shunts in Infants With Single Ventricle Defect Undergoing Staged Reconstruction--Pediatric Heart Network

NCT00115934
View directory record Official record
Conditions
Heart Defects, Congenital
Interventions
Blalock-Taussig pulmonary artery shunt, Right ventricular to pulmonary artery shunt
Procedure
Lead sponsor
Carelon Research
Other
Eligibility
Not listed
Enrollment
555 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2009
U.S. locations
12
States / cities
Los Angeles, California • Wilmington, Delaware • St. Petersburg, Florida + 9 more
Source: ClinicalTrials.gov public record
Updated Mar 10, 2025 · Synced Jul 21, 2026, 1:26 PM EDT
Completed Phase 1 Interventional

A Phase I Study of Dexmedetomidine Bolus and Infusion in Corrective Infant Cardiac Surgery: Safety and Pharmacokinetics

NCT01915277
View directory record Official record
Conditions
Transposition of the Great Arteries, Tetralogy of Fallot, Ventricular Septal Defect
Interventions
Dexmedetomidine
Drug
Lead sponsor
Carelon Research
Other
Eligibility
Up to 180 Days
Enrollment
119 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
4
States / cities
Boston, Massachusetts • Ann Arbor, Michigan • Philadelphia, Pennsylvania + 1 more
Source: ClinicalTrials.gov public record
Updated Mar 22, 2018 · Synced Jul 21, 2026, 1:26 PM EDT
Completed No phase listed Observational

MRI Assessment of RV Function: Patients With TOF or Aortic Coarctation

NCT00277901
View directory record Official record
Conditions
Congenital Disorders
Interventions
Not listed
Lead sponsor
Children's Healthcare of Atlanta
Other
Eligibility
Up to 21 Years
Enrollment
390 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2009
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Dec 1, 2014 · Synced Jul 21, 2026, 1:26 PM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Non-Invasive Determination of Fetal Chromosome Abnormalities

NCT00891852
View directory record Official record
Conditions
Down Syndrome (Trisomy 21), Edward's Syndrome (Trisomy 18), Patau Syndrome (Trisomy 13), Klinefelter Syndrome (47, XXY), and Other Chromosome, Abnormalities.
Interventions
Not listed
Lead sponsor
Lenetix Medical Screening Laboratory
Industry
Eligibility
18 Years and older · Female only
Enrollment
1,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
7
States / cities
Rockville, Maryland • Moristown, New Jersey • Mineola, New York + 3 more
Source: ClinicalTrials.gov public record
Updated Apr 30, 2009 · Synced Jul 21, 2026, 1:26 PM EDT
Not listed No phase listed Observational

Evaluating Pulse Oximetry Bias in Children With Darker Skin Pigmentation

NCT05617547
View directory record Official record
Conditions
Congenital Heart Disease in Children, Cardiomyopathies
Interventions
Pulse Oximeter (Massimo)
Diagnostic Test
Lead sponsor
Stanford University
Other
Eligibility
Up to 21 Years
Enrollment
154 participants
Timeline
2022 – 2024
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Mar 31, 2024 · Synced Jul 21, 2026, 1:26 PM EDT
Completed No phase listed Observational

SVRII Family Factors Study

NCT01582529
View directory record Official record
Conditions
Hypoplastic Left Heart Syndrome
Interventions
Not listed
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
18 Years to 60 Years
Enrollment
187 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2019
U.S. locations
10
States / cities
Los Angeles, California • Wilmington, Delaware • St. Petersburg, Florida + 7 more
Source: ClinicalTrials.gov public record
Updated Jan 21, 2020 · Synced Jul 21, 2026, 1:26 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

RASopathy Biorepository

NCT04395495
View directory record Official record
Conditions
RAS Mutation, Neurofibromatosis 1, Noonan Syndrome, Noonan Syndrome With Multiple Lentigines, Noonan Neurofibromatosis Syndrome, Cardiofaciocutaneous Syndrome, Costello Syndrome, Legius Syndrome, Smith-Kingsmore Syndrome, MTOR Gene Mutation, GATOR-1 Gene Mutation, SYNGAP1-Related Intellectual Disability, DLG4, MAPK1 Gene Mutation
Interventions
Not listed
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
Not listed
Enrollment
1,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2065
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 17, 2025 · Synced Jul 21, 2026, 1:26 PM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Study of Energy Expenditure in Infants With Ventricular Septal Defects

NCT00006272
View directory record Official record
Conditions
Heart Septal Defects, Ventricular
Interventions
Not listed
Lead sponsor
National Center for Research Resources (NCRR)
NIH
Eligibility
3 Months to 4 Months
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 1994
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Jun 23, 2005 · Synced Jul 21, 2026, 1:26 PM EDT
Terminated Not applicable Interventional Results available

Pediatric REPlAcement of the PulmonaRy ValvE in Tetralogy of Fallot -

NCT03634072
View directory record Official record
Conditions
Tetralogy of Fallot
Interventions
PVR
Procedure
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
13 Years to 21 Years
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
6
States / cities
Washington D.C., District of Columbia • Atlanta, Georgia • Chicago, Illinois + 2 more
Source: ClinicalTrials.gov public record
Updated Oct 5, 2023 · Synced Jul 21, 2026, 1:26 PM EDT
Terminated No phase listed Observational

Resynchronization of Left Ventricular Contraction After Reimplantation of Anomalous Left Coronary Artery

NCT00268112
View directory record Official record
Conditions
Congenital Disorders
Interventions
Not listed
Lead sponsor
Children's Healthcare of Atlanta
Other
Eligibility
Up to 21 Years
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2006
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Mar 15, 2012 · Synced Jul 21, 2026, 1:26 PM EDT
Completed No phase listed Observational

Noninvasive Screening for Fetal Aneuploidy: A New Maternal Plasma Marker

NCT00971334
View directory record Official record
Conditions
Pregnancy, Aneuploidy, Down Syndrome, Edwards Syndrome
Interventions
Not listed
Lead sponsor
Sequenom, Inc.
Industry
Eligibility
18 Years and older · Female only
Enrollment
2,502 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
30
States / cities
Mobile, Alabama • La Mesa, California • San Diego, California + 21 more
Source: ClinicalTrials.gov public record
Updated Feb 16, 2012 · Synced Jul 21, 2026, 1:26 PM EDT
Completed No phase listed Observational Results available

Philips Intracardiac Echocardiography (ICE) Clinical Registry

NCT04950192
View directory record Official record
Conditions
Atrial Fibrillation, Stroke, Valve Disease, Heart, Atrial Septal Defect, Patent Foramen Ovale, Mitral Valve Disease, Tricuspid Valve Disease, Aortic Valve Disease
Interventions
ICE Image guidance
Device
Lead sponsor
Philips Clinical & Medical Affairs Global
Industry
Eligibility
18 Years and older
Enrollment
155 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
5
States / cities
Aurora, Colorado • Chicago, Illinois • Boston, Massachusetts + 2 more
Source: ClinicalTrials.gov public record
Updated Jan 5, 2025 · Synced Jul 21, 2026, 1:26 PM 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 Jul 21, 2026, 1:26 PM EDT
Terminated Not applicable Interventional Results available

Methacetin Breath Test in Patients With Liver Disease Secondary to Heart Disease

NCT04176458
View directory record Official record
Conditions
Dilated Cardiomyopathy, Tricuspid Atresia
Interventions
Methacetin Breath Test (MBT)
Device
Lead sponsor
Northwestern University
Other
Eligibility
18 Years and older
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 4, 2023 · Synced Jul 21, 2026, 1:26 PM EDT