NCT05647213

Brief Summary

The goal of this clinical trial is to test the safety of lab-grown heart cells made from stem cells in subjects with congenital heart disease. The main questions it aims to answer are:

  • Is this product safe to deliver to humans
  • Is the conduct of this trial feasible Participants will be asked to:
  • Agree to testing and monitoring before and after product administration
  • Receive investigational product
  • Agree to lifelong follow-up Researchers will compare subjects from the same pool to see if there is a difference between treated and untreated subjects.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
50

participants targeted

Target at P50-P75 for phase_1

Timeline
33mo left

Started Feb 2023

Longer than P75 for phase_1

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress54%
Feb 2023Feb 2029

First Submitted

Initial submission to the registry

November 30, 2022

Completed
12 days until next milestone

First Posted

Study publicly available on registry

December 12, 2022

Completed
2 months until next milestone

Study Start

First participant enrolled

February 3, 2023

Completed
4.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2027

Expected
1.4 years until next milestone

Study Completion

Last participant's last visit for all outcomes

February 1, 2029

Last Updated

March 13, 2026

Status Verified

June 1, 2025

Enrollment Period

4.6 years

First QC Date

November 30, 2022

Last Update Submit

March 11, 2026

Conditions

Keywords

univentricularheart diseaseiPSCinduced pluripotent stem cell

Outcome Measures

Primary Outcomes (2)

  • Short term safety

    The primary safety endpoint is short term safety defined as the rate of new or worsening serious adverse events (SAE) from any System Organ Class (SOC) within 3 months of the iPSC-CL delivery as compared to the control arm.

    3 months

  • Feasibility

    The primary feasibility endpoint is the percentage of individuals with collected skin cells that meet all iPSC-CL release criteria and the percentage of individuals that have cells delivered.

    12 months

Secondary Outcomes (5)

  • Long term safety

    2 years

  • Cardiac High Sensitivity Troponin T

    1 month

  • NT-pro-BNP

    3 months

  • Tumor marker levels

    Three months from date of treatment and every 12 months after treatment, assessed up to 15 years

  • Panel Reactive Antibody (PRA) levels

    12 months

Study Arms (2)

Treated

EXPERIMENTAL

Subjects in Treated arm will receive one dose of Investigational Product. Within this arm are three dose levels. Dose level selection will be determined by product availability subjects have available product and when they can be treated. Dose levels will escalate in order of treatment date.

Biological: iPSC-CL

Control

NO INTERVENTION

Subjects who enroll but do not receive Investigational Product will be placed in the control arm.

Interventions

iPSC-CLBIOLOGICAL

Autologous IPSCL

Treated

Eligibility Criteria

Age18 Years - 40 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may not qualify if:

  • Individuals who meet all the following criteria are eligible for enrollment as study participants:
  • Age 18 to 40 years old
  • Subject must be able to understand and provide informed consent.
  • Univentricular congenital heart disease.
  • End-stage systolic heart failure, defined as Class IV according to New York Heart Association (NYHA) with abnormal visually estimated ejection fraction below 40%.
  • Prognosis of 1 to 1.5 years survival at time of skin biopsy.
  • The patient falls into one of the following categories:
  • Currently listed for heart transplantation at an accredited program in the US but has an expected waiting time for a suitable organ that is likely longer than anticipated life-expectancy.
  • Has been denied access to a heart transplantation at an accredited US institution.
  • Is currently on or planning to be on mechanical support as destination therapy.
  • All guideline directed therapy available to the subject has been maximized, for a minimum of 3 months prior to enrollment.
  • Adequate social support system that facilitates subject participation in all study required tests and procedures and supports the subject's ability to comply with long-term study requirements.
  • Individuals who meet any of the following criteria are not eligible for enrollment as study participants:
  • No available autologous iPSC-CL as defined by the manufacturer's release criteria. (This applies to Part II of the study and applies to the treatment arm only.)
  • History of symptomatic episodes of cardiac arrythmia requiring cardiac defibrillation or escalation of medications.
  • +24 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Mayo Clinic

Rochester, Minnesota, 55901, United States

RECRUITING

MeSH Terms

Conditions

Univentricular HeartHeart Defects, CongenitalHeart Diseases

Condition Hierarchy (Ancestors)

Cardiovascular AbnormalitiesCardiovascular DiseasesCongenital AbnormalitiesCongenital, Hereditary, and Neonatal Diseases and Abnormalities

Study Officials

  • Timothy J Nelson, M.D., Ph.D.

    HeartWorks, Inc.

    STUDY DIRECTOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
phase 1
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 30, 2022

First Posted

December 12, 2022

Study Start

February 3, 2023

Primary Completion (Estimated)

September 1, 2027

Study Completion (Estimated)

February 1, 2029

Last Updated

March 13, 2026

Record last verified: 2025-06

Locations