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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: 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 21, 2026, 9:21 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 21, 2026, 9:21 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 21, 2026, 9:21 PM EDT
Recruiting No phase listed Observational

Fontan Associated Liver Disease and the Evaluation of Biomarkers for Disease Severity Assessment

NCT05213598
View directory record Official record
Conditions
Congenital Heart Disease
Interventions
Not listed
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years to 100 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2051
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 16, 2026 · Synced Jul 21, 2026, 9:21 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 21, 2026, 9:21 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 21, 2026, 9:21 PM EDT
Completed Phase 2Phase 3 Interventional Results available

The Effects of Inhaled Nitric Oxide After Fontan Operation

NCT00945529
View directory record Official record
Conditions
Congenital Heart Defect
Interventions
inhaled nitric oxide (iNO)
Drug
Lead sponsor
Ellen Spurrier
Other
Eligibility
1 Year to 5 Years
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
Wilmington, Delaware
Source: ClinicalTrials.gov public record
Updated May 18, 2023 · Synced Jul 21, 2026, 9:21 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

The Effects of Sildenafil on Exercise Function and Capacity in Patients With Fontan Circulation

NCT00964782
View directory record Official record
Conditions
Fontan Circulation
Interventions
Sildenafil, Placebo, Sildenafil 2, Placebo 2
Drug
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
6 Years to 17 Years
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2012
U.S. locations
1
States / cities
Hershey, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 25, 2019 · Synced Jul 21, 2026, 9:21 PM EDT
Completed Phase 3 Interventional Results available

Role of Sildenafil for Fontan Associated Liver Disease (SiFALD) Study

NCT03154476
View directory record Official record
Conditions
Cirrhosis, Congenital Heart Disease
Interventions
Sildenafil, Placebo
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 22, 2021 · Synced Jul 21, 2026, 9:21 PM EDT
Completed Not applicable Interventional

WE BEAT - HEART Club Fontan Wellness Project: A Virtual Resilience Promotion and Frailty Prevention Program

NCT05199857
View directory record Official record
Conditions
Fontan Physiology, Frailty, Single Ventricle Heart Disease
Interventions
WE BEAT Group Wellness Education program - phase 1, HEART Club Home Exercise program - phase 2
Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
13 Years to 18 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jul 9, 2026 · Synced Jul 21, 2026, 9:21 PM EDT
Terminated No phase listed Observational

Development of Novel MRI Methods for Detecting, Discriminating, and Measuring Liver Fibrosis and Congestion in Fontan Patients

NCT03539757
View directory record Official record
Conditions
Liver Fibrosis
Interventions
Non-Contrast Magnetic Resonance Imaging
Device
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
8 Years to 99 Years
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 6, 2024 · Synced Jul 21, 2026, 9:21 PM EDT
Completed Not applicable Interventional Results available

Stage 3 Fontan Operation Liver Ultrasound Study

NCT02269709
View directory record Official record
Conditions
Fontan Operation
Interventions
ARFI Ultrasound
Device
Lead sponsor
University of Michigan
Other
Eligibility
Up to 17 Years
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jan 11, 2018 · Synced Jul 21, 2026, 9:21 PM EDT
Terminated Phase 2 Interventional Results available

Effects of Perioperative Nesiritide or Milrinone Infusion on Recovery From Fontan Surgery

NCT00543309
View directory record Official record
Conditions
Heart Defects, Congenital
Interventions
nesiritide, milrinone, placebo
Drug
Lead sponsor
John M Costello
Other
Eligibility
Not listed
Enrollment
106 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2013
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 24, 2018 · Synced Jul 21, 2026, 9:21 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Multimodality Biomarkers for Noninvasive Assessment of the Fontan Patient

NCT03263312
View directory record Official record
Conditions
Single-ventricle, Myocardial Fibrosis
Interventions
Exercise
Behavioral
Lead sponsor
Maria Bano
Other
Eligibility
10 Years to 40 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2025
U.S. locations
1
States / cities
Irving, Texas
Source: ClinicalTrials.gov public record
Updated Sep 4, 2021 · Synced Jul 21, 2026, 9:21 PM EDT
Completed No phase listed Observational

Cholate Clearance in Fontans

NCT03726229
View directory record Official record
Conditions
Fontan Procedure
Interventions
Cholate assay
Device
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 9, 2022 · Synced Jul 21, 2026, 9:21 PM EDT
Recruiting Phase 1 Interventional

IMProving DRug Dosing and Outcomes for Single VEntricle Patients With Fontan Associated Liver Disease

NCT06324396
View directory record Official record
Conditions
Fontan Circulation
Interventions
Sildenafil 10mg oral tablet (participants <20kg), or 20mg oral tablet (participants ≥20kg), Pravastatin 20 mg oral tablet (ages <13 years), or 40 mg oral tablet (≥14 years)
Drug
Lead sponsor
Children's Mercy Hospital Kansas City
Other
Eligibility
8 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated Jan 1, 2026 · Synced Jul 21, 2026, 9:21 PM EDT
Terminated No phase listed Observational

Characterizing the Effect of Dopamine on Markers of Lymph Re-circulation in Fontan-associated Protein-losing Enteropathy

NCT03322345
View directory record Official record
Conditions
Dopamine, Protein-Losing Enteropathies, Lymphatic System, Lymph, Catecholamine, Single-ventricle, Congenital Heart Disease
Interventions
Not listed
Lead sponsor
University of Michigan
Other
Eligibility
3 Years and older
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2026
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jul 13, 2026 · Synced Jul 21, 2026, 9:21 PM EDT
Completed No phase listed Observational

Clinical Characteristics and Associations of the "Good Fontan" Patient

NCT03470428
View directory record Official record
Conditions
Congenital Heart Disease, Single-ventricle
Interventions
Not listed
Lead sponsor
Boston Children's Hospital
Other
Eligibility
10 Years to 60 Years
Enrollment
146 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2023
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 18, 2023 · Synced Jul 21, 2026, 9:21 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 21, 2026, 9:21 PM EDT
Completed No phase listed Observational

Ventricular and Pulmonary Vascular Reserve After the Fontan Operation

NCT03853837
View directory record Official record
Conditions
Heart Failure, Congenital Heart Disease
Interventions
rest-exercise echocardiography
Diagnostic Test
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 99 Years
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Oct 5, 2022 · Synced Jul 21, 2026, 9:21 PM EDT
Completed No phase listed Observational

Increased Liver Stiffness: A Study of Acoustic Radiation Force Impulse (ARFI) Elastography

NCT03382119
View directory record Official record
Conditions
Liver Fibroses
Interventions
Ultrasound with ARFI (acoustic radiation force impulse), Ultrasound with backscatter imaging
Device
Lead sponsor
University of Michigan
Other
Eligibility
2 Years to 5 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jun 1, 2020 · Synced Jul 21, 2026, 9:21 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 21, 2026, 9:21 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Cholate Clearance in Fontan and Heart Failure

NCT07009132
View directory record Official record
Conditions
Fontan, Right Heart Failure
Interventions
Dual cholate clearance assay, MRI
Device · Radiation
Lead sponsor
HepQuant, LLC
Industry
Eligibility
18 Years and older
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2031
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 14, 2025 · Synced Jul 21, 2026, 9:21 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 21, 2026, 9:21 PM EDT