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Showing 25–46 of 22 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: Single-ventricle Fontan Clear all
Completed Phase 2Phase 3 Interventional Results available

Early Use of Vasopressin in Post-Fontan Management

NCT03088345
View directory record Official record
Conditions
Circulatory Perfusion Disorder, Congenital Heart Disease, Single-ventricle
Interventions
Vasopressin, Arginine, Placebo
Drug
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
3 Weeks to 18 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jul 6, 2020 · Synced Jul 22, 2026, 2:20 PM EDT
Completed Phase 4 Interventional Results available

Study of Effects of Sildenafil on Patients With Fontan Heart Circulation

NCT01815502
View directory record Official record
Conditions
Single Ventricle Heart Disease After Fontan Surgery
Interventions
Cardiac catheterization
Diagnostic Test
Lead sponsor
Medical University of South Carolina
Other
Eligibility
3 Years to 40 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Dec 6, 2018 · Synced Jul 22, 2026, 2:20 PM EDT
Recruiting Not applicable Interventional

REHAB Fontan Failure: A Trial of Cardiac Rehabilitation

NCT06150950
View directory record Official record
Conditions
Heart Failure Congenital, Single-ventricle
Interventions
Cardiac rehabilitation, Usual care
Behavioral · Other
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
2
States / cities
Stanford, California • Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jan 4, 2026 · Synced Jul 22, 2026, 2:20 PM EDT
Recruiting Not applicable Interventional

Fontan Fitness Trial

NCT06918795
View directory record Official record
Conditions
Single-ventricle, Congenital Heart Disease
Interventions
Digital Exercise Intervention
Behavioral
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
10 Years to 17 Years
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 12, 2026 · Synced Jul 22, 2026, 2:20 PM EDT
Completed No phase listed Observational

Fontan Imaging Biomarkers (FIB) Study

NCT03119090
View directory record Official record
Conditions
Single-ventricle, Congenital Heart Disease
Interventions
Not listed
Lead sponsor
Boston Children's Hospital
Other
Eligibility
3 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2021
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 4, 2021 · Synced Jul 22, 2026, 2:20 PM EDT
Terminated Phase 3 Interventional Results available

An Upcoming Clinical Study to Measure the Safety and Impact of a Drug Called Macitentan in Teenage and Adult Fontan Patients.

NCT03775421
View directory record Official record
Conditions
Congenital Heart Disease With Fontan Circulation
Interventions
macitentan 10 mg
Drug
Lead sponsor
Actelion
Industry
Eligibility
12 Years and older
Enrollment
112 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
2
States / cities
Boston, Massachusetts • Spokane, Washington
Source: ClinicalTrials.gov public record
Updated Mar 6, 2023 · Synced Jul 22, 2026, 2:20 PM EDT
Completed No phase listed Observational

Diffuse Myocardial Fibrosis in Fontan Patients

NCT01929174
View directory record Official record
Conditions
Congenital Heart Disease, Single Ventricle, Myocardial Fibrosis
Interventions
Not listed
Lead sponsor
Oregon Health and Science University
Other
Eligibility
18 Years to 90 Years
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2019
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Apr 15, 2019 · Synced Jul 22, 2026, 2:20 PM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Global and Regional Myocardial Strain and Power Output In Patients With Single Ventricles Using Novel MRI Techniques

NCT01107990
View directory record Official record
Conditions
Fontan Procedure, Hypoplastic Left Heart Syndrome, Tricuspid Atresia, Double Inlet Left Ventricle
Interventions
Not listed
Lead sponsor
University of California, San Francisco
Other
Eligibility
10 Years and older
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2012
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jan 20, 2020 · Synced Jul 22, 2026, 2:20 PM EDT
Completed Not applicable Interventional

Enhanced External Counterpulsation in Patients With Fontan Circulation

NCT04956952
View directory record Official record
Conditions
Single-ventricle, Congenital Heart Disease
Interventions
EECP
Device
Lead sponsor
Boston Children's Hospital
Other
Eligibility
18 Years and older
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 12, 2023 · Synced Jul 22, 2026, 2:20 PM EDT
Completed Phase 2Phase 3 Interventional Results available

Use of Vasopressin Following the Fontan Operation

NCT02975999
View directory record Official record
Conditions
Pleural Effusion, Single-ventricle
Interventions
Vasopressin, Normal Saline
Drug
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Months to 7 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Oak Lawn, Illinois
Source: ClinicalTrials.gov public record
Updated Oct 23, 2024 · Synced Jul 22, 2026, 2:20 PM EDT
Terminated Phase 4 Interventional Results available

The Effects of Eplerenone on Markers of Myocardial Fibrosis in Adult Congenital Heart Disease

NCT01971593
View directory record Official record
Conditions
Tetralogy of Fallot, Transposition of the Great Vessels With an Arterial Switch, Single Ventricle With a Fontan Palliation
Interventions
Eplerenone
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 80 Years
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated May 3, 2018 · Synced Jul 22, 2026, 2:20 PM EDT
Completed Phase 3 Interventional Results available

Evaluation of Fontan-associated Hepatic Stiffness and the Efficacy of Udenafil in Reducing Liver Stiffness

NCT03430583
View directory record Official record
Conditions
Single Ventricle Heart Disease
Interventions
Udenafil
Drug
Lead sponsor
Mezzion Pharma Co. Ltd
Industry
Eligibility
12 Years and older
Enrollment
88 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
16
States / cities
Aurora, Colorado • Wilmington, Delaware • Washington D.C., District of Columbia + 13 more
Source: ClinicalTrials.gov public record
Updated Oct 13, 2025 · Synced Jul 22, 2026, 2:20 PM EDT
Terminated No phase listed Observational

Intra-Atrial vs. Extra-Cardiac Technique During Fontan Operation

NCT00266942
View directory record Official record
Conditions
Congenital Disorders
Interventions
Not listed
Lead sponsor
Children's Healthcare of Atlanta
Other
Eligibility
Up to 18 Years
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1990 – 2007
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated May 22, 2007 · Synced Jul 22, 2026, 2:20 PM EDT
Terminated Phase 2Phase 3 Interventional Results available

Colchicine in Postoperative Fontan Patients

NCT03575572
View directory record Official record
Conditions
Single-ventricle, Heart Diseases
Interventions
Colchicine
Drug
Lead sponsor
University of Michigan
Other
Eligibility
20 Months to 5 Years
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated May 8, 2022 · Synced Jul 22, 2026, 2:20 PM EDT
Completed Phase 1Phase 2 Interventional

Fibrosis and the Fontan

NCT04901975
View directory record Official record
Conditions
Single-ventricle
Interventions
Spironolactone
Drug
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
1 Year to 6 Years
Enrollment
98 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 30, 2026 · Synced Jul 22, 2026, 2:20 PM EDT
Recruiting Phase 2 Interventional

CAMEO-FONTAN -Dapagliflozin in the Failing Fontan Circulation

NCT06762964
View directory record Official record
Conditions
Fontan Circulation, Single Ventricle Heart Disease, HFpEF - Heart Failure With Preserved Ejection Fraction
Interventions
Dapagliflozin tablet, Placebo Tablet
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated May 5, 2026 · Synced Jul 22, 2026, 2:20 PM EDT
Active, not recruiting Phase 1 Interventional

Intramyocardial Injection of Autologous UCB-MNC During Fontan Surgery for SRV Dependent CHD

NCT04907526
View directory record Official record
Conditions
Congenital Heart Disease, SRV Dependent
Interventions
Autologous mononuclear cells
Biological
Lead sponsor
Timothy J Nelson, MD, PhD
Other
Eligibility
2 Years to 5 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
6
States / cities
Birmingham, Alabama • Los Angeles, California • Aurora, Colorado + 3 more
Source: ClinicalTrials.gov public record
Updated Jun 26, 2025 · Synced Jul 22, 2026, 2:20 PM EDT
Completed No phase listed Observational

Biomarker Study for Heart Failure in Children With Single Ventricle Physiology

NCT00571233
View directory record Official record
Conditions
Tricuspid Atresia, Hypoplastic Left Heart Syndrome, Unbalanced AV Canal
Interventions
Not listed
Lead sponsor
University of California, San Francisco
Other
Eligibility
1 Month to 6 Years
Enrollment
71 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2015
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated May 13, 2015 · Synced Jul 22, 2026, 2:20 PM EDT
Completed Phase 1 Interventional

Effect of Tadalafil on Exercise Capacity in Pediatric Fontan Patients

NCT01291069
View directory record Official record
Conditions
Single Ventricle
Interventions
Tadalafil Citrate, Sugar pill
Drug
Lead sponsor
University of Utah
Other
Eligibility
8 Years to 35 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Apr 16, 2017 · Synced Jul 22, 2026, 2:20 PM EDT
Completed Phase 4 Interventional Results available

Effect of Carvedilol on Exercise Performance in Fontan Patients

NCT02946892
View directory record Official record
Conditions
Single Ventricle, Fontan
Interventions
Carvedilol, Placebo
Drug
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
10 Years to 35 Years
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Jan 21, 2021 · Synced Jul 22, 2026, 2:20 PM EDT
Withdrawn Not applicable Interventional

The Destination Therapy Evaluation for Failing Fontan Study

NCT01149603
View directory record Official record
Conditions
Failing Fontan Physiology, Failing Fontan, Single-ventricle, Single-ventricle Fontan, Single-ventricle Physiology
Interventions
HeartMate II Ventricular Assist Device
Device
Lead sponsor
Timothy Icenogle, MD
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2017
U.S. locations
1
States / cities
Spokane, Washington
Source: ClinicalTrials.gov public record
Updated Sep 20, 2017 · Synced Jul 22, 2026, 2:20 PM EDT
Completed Phase 4 Interventional Results available

The Effects of Ambrisentan on Exercise Capacity in Fontan Patients

NCT01971580
View directory record Official record
Conditions
Single Ventricle Fontan Palliation
Interventions
Ambrisentan
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 50 Years
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated May 6, 2018 · Synced Jul 22, 2026, 2:20 PM EDT