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Showing 25–46 of 22 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Hypoplastic Left Heart Clear all
Completed Not applicable Interventional Accepts healthy volunteers

3D Modalities for Medical Student Education of Congenital Heart Disease

NCT07295730
View directory record Official record
Conditions
Tetralogy of Fallot (TOF), Hypoplastic Left Heart Syndrome (HLHS)
Interventions
3D-printed heart models and augmented reality
Other
Lead sponsor
Case Western Reserve University
Other
Eligibility
18 Years and older
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 25, 2025 · Synced Sep 24, 2026, 5:35 AM EDT
Completed No phase listed Observational

Cerebral Blood Flow in Single Ventricles Throughout Staged Surgical Reconstruction

NCT02135081
View directory record Official record
Conditions
Single Ventricle Defect
Interventions
Not listed
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
4 Months to 10 Years
Enrollment
260 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2016
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 18, 2018 · Synced Sep 24, 2026, 5:35 AM EDT
Completed No phase listed Observational

Evaluation of Panel Reactive Antibody in Children Following Stage I Palliation for Hypoplastic Left Heart Syndrome

NCT01135485
View directory record Official record
Conditions
Congenital Heart Disease
Interventions
Not listed
Lead sponsor
University of Pennsylvania
Other
Eligibility
8 Years to 18 Years
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2016
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 1, 2017 · Synced Sep 24, 2026, 5:35 AM EDT
Completed No phase listed Observational

Neurodevelopmental Outcomes in Hypoplastic Left Heart Syndrome

NCT00399555
View directory record Official record
Conditions
Congenital Heart Disease
Interventions
Not listed
Lead sponsor
Emory University
Other
Eligibility
29 Months to 6 Years
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Nov 26, 2013 · Synced Sep 24, 2026, 5:35 AM EDT
Completed Phase 1 Interventional Results available

Understanding Dexmedetomidine in Neonates After Open Heart Surgery

NCT00576381
View directory record Official record
Conditions
Tetrology of Fallot, Heart Ventricle, Hypoplastic Left Heart
Interventions
Dexmedetomidine
Drug
Lead sponsor
Athena Zuppa
Other
Eligibility
1 Hour to 30 Days
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2010
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 17, 2013 · Synced Sep 24, 2026, 5:35 AM EDT
Terminated Phase 1 Interventional

Cold Heart Study: A Randomized Pilot Trial of Surfactant Therapy

NCT04181255
View directory record Official record
Conditions
Congenital Heart Disease, Hypoplastic Left Heart Syndrome
Interventions
Curosurf, Sham
Drug
Lead sponsor
University of Michigan
Other
Eligibility
1 Day to 12 Weeks
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Sep 12, 2023 · Synced Sep 24, 2026, 5:35 AM EDT
Not listed Phase 1Phase 2 Interventional

Lomecel-B Delivered During Stage II Surgery for Hypoplastic Left Heart Syndrome (ELPIS)

NCT03525418
View directory record Official record
Conditions
HLHS
Interventions
Longeveron Mesenchymal Stem Cells
Biological
Lead sponsor
Longeveron Inc.
Industry
Eligibility
1 Day to 1 Year
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2025
U.S. locations
5
States / cities
Atlanta, Georgia • Baltimore, Maryland • Cincinnati, Ohio + 1 more
Source: ClinicalTrials.gov public record
Updated Oct 3, 2023 · Synced Sep 24, 2026, 5:35 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Erythropoetin Neuroprotection for Neonatal Cardiac Surgery

NCT00513240
View directory record Official record
Conditions
Congenital Heart Disease, Hypoplastic Left Heart Syndrome, Transposition of the Great Arteries, Aortic Arch Hypoplasia or Interruption
Interventions
Erythropoetin, Normal saline
Drug
Lead sponsor
Baylor College of Medicine
Other
Eligibility
1 Day to 30 Days
Enrollment
62 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2015
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 6, 2020 · Synced Sep 24, 2026, 5:35 AM EDT
Withdrawn No phase listed Observational

Sleep Disordered Breathing in Children With Single Ventricle Physiology

NCT00156455
View directory record Official record
Conditions
Hypoplastic Left Heart Syndrome, Obstructive Sleep Apnea Syndrome, Single Ventricle Physiology
Interventions
Not listed
Lead sponsor
University of Rochester
Other
Eligibility
1 Month to 2 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2004
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Apr 29, 2015 · Synced Sep 24, 2026, 5:35 AM 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 Sep 24, 2026, 5:35 AM EDT
Recruiting No phase listed Observational

Effect of Fetal Aortic Valvuloplasty on Outcomes

NCT05386173
View directory record Official record
Conditions
Congenital Heart Disease, Aortic Valve Stenosis, Fetal Cardiac Disorder, Hypoplastic Left Heart Syndrome
Interventions
Fetal aortic balloon dilatation
Procedure
Lead sponsor
Queen Silvia Children's Hospital, Gothenburg, Sweden
Other
Eligibility
23 Weeks to 31 Weeks
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2029
U.S. locations
2
States / cities
San Francisco, California • Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 20, 2025 · Synced Sep 24, 2026, 5:35 AM EDT
Terminated Phase 1 Interventional

Safety and Feasibility Study of Umbilical Cord Blood Cells for Infants With Hypoplastic Left Heart Syndrome

NCT01445041
View directory record Official record
Conditions
Hypoplastic Left Heart Syndrome
Interventions
Autologous Umbilical Cord Blood
Biological
Lead sponsor
Michael Cotten
Other
Eligibility
Up to 2 Days
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2016
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated May 15, 2024 · Synced Sep 24, 2026, 5:35 AM EDT
Completed No phase listed Observational

A Prospective Study of Patients With Hypoplastic Left Heart Syndrome (HLHS) Following Stage II Surgical Palliation

NCT01708863
View directory record Official record
Conditions
Hypoplastic Left Heart Syndrome
Interventions
Not listed
Lead sponsor
Timothy J Nelson, MD, PhD
Other
Eligibility
0 Months to 18 Months
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2020
U.S. locations
3
States / cities
Rochester, Minnesota • Oklahoma City, Oklahoma • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 4, 2020 · Synced Sep 24, 2026, 5:35 AM EDT
Completed No phase listed Observational

NIRS in Neonatal Cardiac Surgery

NCT00166101
View directory record Official record
Conditions
Hypoplastic Left Heart, Surgery
Interventions
Not listed
Lead sponsor
Emory University
Other
Eligibility
1 Day to 1 Year
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2008
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Nov 13, 2012 · Synced Sep 24, 2026, 5:35 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 Sep 24, 2026, 5:35 AM 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 Sep 24, 2026, 5:35 AM EDT
Active, not recruiting Phase 2 Interventional Results available

Intramyocardial Injection of Autologous Umbilical Cord Blood Derived Mononuclear Cells During Surgical Repair of Hypoplastic Left Heart Syndrome

NCT03779711
View directory record Official record
Conditions
Hypoplastic Left Heart Syndrome
Interventions
Autologous (self) mononuclear cells derived from umbilical cord blood, Stage II Surgical repair
Biological · Procedure
Lead sponsor
Timothy J Nelson, MD, PhD
Other
Eligibility
Up to 12 Months
Enrollment
95 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2026
U.S. locations
8
States / cities
Birmingham, Alabama • Los Angeles, California • Aurora, Colorado + 5 more
Source: ClinicalTrials.gov public record
Updated Jul 7, 2025 · Synced Sep 24, 2026, 5:35 AM EDT
Completed Phase 1 Interventional Results available

The CHILD Trial: Hypoplastic Left Heart Syndrome Study.

NCT03406884
View directory record Official record
Conditions
Hypoplastic Left Heart Syndrome
Interventions
c-kit+ cells
Biological
Lead sponsor
Joshua M Hare
Other
Eligibility
1 Day to 21 Days
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
4
States / cities
Atlanta, Georgia • Chicago, Illinois • Baltimore, Maryland + 1 more
Source: ClinicalTrials.gov public record
Updated Jan 22, 2026 · Synced Sep 24, 2026, 5:35 AM EDT
Completed Not applicable Interventional Results available

Oxygen Consumption-based Assessments of Hemodynamics in Neonates Following Congenital Heart Surgery (Oxy-CAHN Study)

NCT02184169
View directory record Official record
Conditions
Transposition of the Great Vessels, Hypoplastic Left Heart Syndrome, Oxygen Consumption Based Assessment of Hemodynamics
Interventions
General Electric Healthcare E-COVX Gas Monitoring Module for VO2 Measurments, Edwards Continuous SVO2 Catheter and Monitoring System - 4.5 fr
Device
Lead sponsor
Boston Children's Hospital
Other
Eligibility
1 Day to 6 Months
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2019
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 3, 2020 · Synced Sep 24, 2026, 5:35 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 Sep 24, 2026, 5:35 AM EDT
Completed Phase 2 Interventional Results available

Ambrisentan in Single Ventricle

NCT02080637
View directory record Official record
Conditions
Hypoplastic Left Heart Syndrome, Hypoplastic Right-sided Heart Complex
Interventions
Ambrisentan, Placebo
Drug · Other
Lead sponsor
Kevin Hill
Other
Eligibility
24 Months to 120 Months
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 11, 2019 · Synced Sep 24, 2026, 5:35 AM EDT
Completed No phase listed Observational

Single Ventricle Outcome

NCT00308217
View directory record Official record
Conditions
Heart Disease, Congenital, Single Ventricle, Hypoplastic Left Heart Syndrome
Interventions
Not listed
Lead sponsor
Emory University
Other
Eligibility
Not listed
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Dec 11, 2013 · Synced Sep 24, 2026, 5:35 AM EDT