CI

At a glance

ClinicalIndex Comparison Record
Phase 2Active· 95 enrolled
Drug / intervention
Autologous (self) mononuclear cells derived from umbilical cord blood +1 morebiological
Likely dose
Autologous (self) mononuclear cells derived from umbilical cord blood 0.1 mLfrom record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT03779711
NCT03779711Phase 2Active

Phase IIb Study of Intramyocardial Injection of Autologous Umbilical Cord Blood Derived Mononuclear Cells During Stage II Surgical Repair of Right Ventricular Dependent Variants of Hypoplastic Left Heart Syndrome (AutoCell-S2)

Timothy J Nelson, MD, PhD·interventional·Posted Dec 19, 2018·Updated Jul 8, 2025

In Brief

A Phase 2 clinical trial evaluating Autologous (self) mononuclear cells derived from umbilical cord blood and Stage II Surgical repair for Hypoplastic Left Heart Syndrome. Active but no longer recruiting, targeting 95 participants across 8 sites.

Detailed Summary

Researchers want to better understand what happens to the heart when the stem cells are injected directly into the muscle of the right side of the heart during the Stage II palliative surgery for single ventricle patients with hypoplastic left heart syndrome (HLHS) or HLHS variant. Researchers want to see if there are changes in the heart's structure/function following this stem cell-based therapy and compared to children that have not had cell-based therapy.

Study Details

Timeline

Phase 2ActiveOverdue
20192020202120222023202420252026
First PostedDec 19, 2018
Enrollment StartJun 6, 2019
Primary CompletionMay 22, 2022
Study CompletionFeb 1, 2026
TodayJul 2, 2026
Enrollment to primary: 3.0 yearsPosted 7.5 years ago

Interventions

Autologous (self) mononuclear cells derived from umbilical cord bloodbiological

The investigational product will be delivered into the right myocardium via sub-epicardial injections of 0.1 mL per kg body weight to achieve the target dose of 1-3 million TNC per kg body weight.at the time of Stage II surgical repair.

Stage II Surgical repairprocedure

This operation usually is performed about six months after Stage I surgery to divert half of the blood to the lungs when circulation through the lungs no longer needs as much pressure from the ventricle. The shunt to the pulmonary arteries is disconnected and the right pulmonary artery is connected directly to the superior vena cava, the vein that brings deoxygenated blood from the upper part of the body to the heart. This sends half of the deoxygenated blood directly to the lungs without going through the ventricle.