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Showing 1–24 of 140 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Single-ventricle Clear all
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 21, 2026, 10:55 AM EDT
Terminated Not applicable Interventional Results available

Perioperative Treprostinil in Pediatric Patients Undergoing the Fontan Operation

NCT02498444
View directory record Official record
Conditions
Single Ventricle
Interventions
Treprostinil
Drug
Lead sponsor
Stanford University
Other
Eligibility
1 Year to 18 Years
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2020
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Mar 30, 2022 · Synced Jul 21, 2026, 10:55 AM EDT
Completed No phase listed Observational

The Effect of Fontan Fenestration Closure on Hepatic Stiffness

NCT03481985
View directory record Official record
Conditions
Single-ventricle, Hepatic Congestion
Interventions
Fenestration status
Other
Lead sponsor
Boston Children's Hospital
Other
Eligibility
Not listed
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 18, 2023 · Synced Jul 21, 2026, 10:55 AM EDT
Recruiting Not applicable Interventional

PARTNER 3 Trial - Aortic Valve-in-Valve

NCT03003299
View directory record Official record
Conditions
Aortic Stenosis, Aortic Stenosis, Severe
Interventions
Edwards SAPIEN 3/SAPIEN 3 Ultra THV
Device
Lead sponsor
Edwards Lifesciences
Industry
Eligibility
Not listed
Enrollment
125 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2038
U.S. locations
50
States / cities
Phoenix, Arizona • Los Angeles, California • Sacramento, California + 43 more
Source: ClinicalTrials.gov public record
Updated May 9, 2024 · Synced Jul 21, 2026, 10:55 AM EDT
Terminated Phase 3 Interventional Results available

International Study to Determine if AdreView Heart Function Scan Can be Used to Identify Patients With Mild or Moderate Heart Failure (HF) That Benefit From Implanted Medical Device

NCT02656329
View directory record Official record
Conditions
Heart Failure
Interventions
Iobenguane I -123 Injection, Implantable Cardioverter Defibrillator, Thyroid blocking
Drug · Device
Lead sponsor
GE Healthcare
Industry
Eligibility
18 Years and older
Enrollment
395 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
29
States / cities
Birmingham, Alabama • Bakersfield, California • La Mesa, California + 24 more
Source: ClinicalTrials.gov public record
Updated May 21, 2019 · Synced Jul 21, 2026, 10:55 AM EDT
Recruiting Not applicable Interventional

Trial of the F2 Filter and Delivery System for Embolic Protection During TAVR

NCT06689839
View directory record Official record
Conditions
Aortic Stenosis Treated With TAVI, Aortic Diseases
Interventions
F2 Filter and Delivery System, Transcatheter Aortic Valve Replacement (TAVR)
Device · Procedure
Lead sponsor
EnCompass Technologies, Inc.
Industry
Eligibility
50 Years and older
Enrollment
500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
8
States / cities
Naples, Florida • Indianappolis, Indiana • Detroit, Michigan + 5 more
Source: ClinicalTrials.gov public record
Updated Nov 19, 2025 · Synced Jul 21, 2026, 10:55 AM 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 21, 2026, 10:55 AM EDT
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, 10:55 AM 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, 10:55 AM 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, 10:55 AM 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, 10:55 AM 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, 10:55 AM EDT
Terminated No phase listed Observational

Evaluating Right Ventricular (RV) Size and Function Using the Upper Valley RV Algorithm and Novel Imaging Modalities

NCT03935178
View directory record Official record
Conditions
Pulmonary Hypertension, Valvular Heart Disease, Congenital Heart Disease, Congestive Heart Failure, Pulmonary Embolism, Acute Coronary Syndrome
Interventions
Measuring Right Ventricular Size and Function
Diagnostic Test
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
18 Years and older
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
Lebanon, New Hampshire
Source: ClinicalTrials.gov public record
Updated Apr 5, 2022 · Synced Jul 21, 2026, 10:55 AM 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 21, 2026, 10:55 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Cerebral Anatomy, Hemodynamics and Metabolism

NCT02919956
View directory record Official record
Conditions
Hypoplastic Left Heart Syndrome
Interventions
Magnetic Resonance Imaging, Neurodevelopmental Testing
Other
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
3 Years and older
Enrollment
121 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2022
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 17, 2024 · Synced Jul 21, 2026, 10:55 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Low Ejection Fraction in Single Lead ECG

NCT05010655
View directory record Official record
Conditions
Left Ventricular Dysfunction, Ventricular Dysfunction, Heart Diseases, Cardiovascular Diseases
Interventions
Use of Eko DUO Electronic Stethoscope
Device
Lead sponsor
Eko Devices, Inc.
Industry
Eligibility
18 Years and older
Enrollment
1,935 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
2
States / cities
O'Fallon, Illinois • Springfield, Illinois
Source: ClinicalTrials.gov public record
Updated Dec 8, 2022 · Synced Jul 21, 2026, 10:55 AM EDT
Completed No phase listed Observational

The PaTHS Descriptive Correlational Longitudinal Study

NCT04785482
View directory record Official record
Conditions
Single-ventricle, Posttraumatic Stress Disorder, Psychosocial Impairment
Interventions
Not listed
Lead sponsor
Children's Mercy Hospital Kansas City
Other
Eligibility
Not listed
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated Jul 21, 2022 · Synced Jul 21, 2026, 10:55 AM EDT
Completed Not applicable Interventional Results available

Imaging With a Radio Tracer to Guide VT Ablations

NCT01250912
View directory record Official record
Conditions
Ventricular Tachycardia, Arrhythmia
Interventions
123I-metaiodobenzylguanidine
Drug
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2019
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 26, 2022 · Synced Jul 21, 2026, 10:55 AM EDT
Completed No phase listed Observational

Pharmacokinetics and Safety Profile of Digoxin in Infants With Single Ventricle Congenital Heart Disease

NCT03877965
View directory record Official record
Conditions
Congenital Heart Disease
Interventions
Digoxin
Drug
Lead sponsor
Christoph P Hornik, MD MPH
Other
Eligibility
Up to 6 Months
Enrollment
50 participants
Timeline
2019 – 2022
U.S. locations
11
States / cities
Los Angeles, California • San Diego, California • Aurora, Colorado + 8 more
Source: ClinicalTrials.gov public record
Updated Oct 11, 2022 · Synced Jul 21, 2026, 10:55 AM EDT
Recruiting Not applicable Interventional

Impact of Early Fortini Initiation on Growth and Interstage Outcomes in Infants With Single Ventricle Physiology

NCT07087782
View directory record Official record
Conditions
Single-ventricle
Interventions
Fortini formula, Standard Nutritional Care
Other
Lead sponsor
Driscoll Children's Hospital
Other
Eligibility
0 Months to 6 Months
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
1
States / cities
Corpus Christi, Texas
Source: ClinicalTrials.gov public record
Updated May 12, 2026 · Synced Jul 21, 2026, 10:55 AM EDT
Completed Not applicable Interventional Results available

Assess Safety and Probable Benefit of the EXCOR® Pediatric Ventricular Assist Device

NCT00583661
View directory record Official record
Conditions
Heart Failure, Cardiomyopathies
Interventions
EXCOR Pediatric
Device
Lead sponsor
Berlin Heart, Inc
Industry
Eligibility
1 Day to 16 Years
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2011
U.S. locations
15
States / cities
Birmingham, Alabama • Little Rock, Arkansas • Palo Alto, California + 12 more
Source: ClinicalTrials.gov public record
Updated Mar 14, 2013 · Synced Jul 21, 2026, 10:55 AM EDT
Completed Early Phase 1 Interventional

Interstage Monitoring Using an Implantable Loop Recorder: A Pilot Study

NCT05744934
View directory record Official record
Conditions
Univentricular Heart
Interventions
LUX-Dx™
Device
Lead sponsor
Boston Children's Hospital
Other
Eligibility
Up to 30 Days
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 18, 2026 · Synced Jul 21, 2026, 10:55 AM EDT
Completed Phase 1 Interventional Results available

Sildenafil in Single Ventricle Patients

NCT01169519
View directory record Official record
Conditions
Heart Disease
Interventions
Sildenafil by injection
Drug
Lead sponsor
Duke University
Other
Eligibility
3 Months to 120 Months
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Dec 4, 2013 · Synced Jul 21, 2026, 10:55 AM 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 21, 2026, 10:55 AM EDT