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NCT Number: NCT06866600

IPSC-CMs Combined with LVAD or CABG for the Treatment of Heart Failure

This clinical trial investigates the safety, feasibility, and therapeutic potential of a combined approach using HiCM-188 cardiomyocyte injection delivered intramyocardially alongside either LVAD implantation or CABG surgery in patients with advanced ischemic heart failure.

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Key information

Age range

35 year–75 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 1 / Phase 2

Primary location

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Male or female aged 35-75 years (inclusive) at the time of signing the informed consent form.
  • Capable of understanding the informed consent form, voluntarily agreeing to participate in the trial, and signing the informed consent form.
  • Diagnosed with end-stage heart failure.
  • Receiving optimized medical therapy for heart failure, with New York Heart Association (NYHA) functional class III-IV.
  • Echocardiography demonstrating regional hypokinesia or akinesia of the ventricular wall.
  • Cardiac magnetic resonance imaging (MRI) confirming left ventricular ejection fraction (LVEF) ≤35%.
  • Myocardial perfusion-metabolism imaging with radionuclide indicating infarcted myocardium in the left anterior descending (LAD) artery territory.
  • Meets criteria for coronary artery bypass grafting (CABG) under cardiopulmonary bypass during screening and requires CABG surgery.
  • For patients enrolled in the LVAD implantation group, the following additional criteria must be met:
  • Definitive indication for LVAD implantation due to end-stage heart failure.
  • Anticipated significant improvement in hemodynamic stability post-LVAD implantation, with potential for further cardiac functional improvement via myocardial cell injection.
  • Absence of significant contraindications for LVAD surgery.

Exclusion criteria

  • History of pacemaker, implantable cardioverter-defibrillator (ICD), or cardiac resynchronization therapy (CRT).
  • Severe valvular heart disease.
  • Acute myocardial infarction or history of percutaneous coronary intervention (PCI) within 1 month prior to screening.
  • Non-ischemic cardiomyopathy or acute viral myocarditis.
  • Acute cerebrovascular event within 1 month prior to screening.
  • History of malignancy within 5 years prior to screening.
  • Autoimmune disease or chronic use of immunosuppressive agents.
  • History of organ transplantation.
  • Planned concurrent major surgery (excluding left ventricular aneurysm resection or left atrial appendage closure/resection).
  • Malignant ventricular arrhythmia.
  • Contraindications for CABG surgery.
  • Positive serology for human immunodeficiency virus (HIV), hepatitis B surface antigen (HBsAg), hepatitis C virus (HCV) antibody, or Treponema pallidum antibody.
  • Inability to undergo cardiac MRI or PET/CT imaging.
  • Contraindications to immunosuppressive therapy or inability to comply with the protocol-specified immunosuppressive regimen.
  • Hypersensitivity to mycophenolate sodium, mycophenolic acid, mycophenolate mofetil, tacrolimus, macrolides, prednisone acetate/methylprednisolone, other corticosteroids, or basiliximab.
  • Participation in another clinical trial within 3 months prior to screening.
  • Pregnancy, lactation, or positive pregnancy test in female patients.
  • Any other condition deemed by the investigator to render the patient unsuitable for trial participation.

Treatment and study plan

low dose CABG+iPSC-CMs

Biological

CABG+0.5×10^8 iPSC-CMs

High dose CABG/LVAD+iPSC-CMs

Biological

CABG+1.5×10^8 iPSC-CMs or LVAD+1.5×10^8 iPSC-CMs

CABG/LVAD+Saline

Other

CABG/LVAD+Saline

Primary outcomes

  1. 6-minute walk test

    Time frame: baseline, 1, 3, 6, 12 months post-operation

  2. Major Adverse Cardiovascular Events

    Time frame: From enrollment to the end of study at 12 months

    The composite endpoint events occurring during the prescribed postoperative follow-up period included cardiac death, non-fatal myocardial infarction, non-fatal stroke, and emergency target vessel revascularization (e.g., PCI or CABG), which was expressed as the percentage of subjects experiencing at least one of these events (%).

  3. Survival rate

    Time frame: From enrollment to the end of study at 12 months

Secondary outcomes

  1. Left ventricular ejection fraction

    Time frame: baseline, 1, 3, 6, 12 months post-operation

    Improvement of left ventricular ejection fraction assessed by ECHO

  2. Cardiac magnetic resonance detection index

    Time frame: baseline, 1, 3, 6, 12 months post-operation

    Myocardial infarction size and Myocardial fibrosis assessed by MRI

  3. BNP

    Time frame: baseline, 1, 3, 6, 12 months post-operation

    BNP levels are measured by venous blood samples

  4. SF-36

    Time frame: baseline, 1, 3, 6, 12 months post-operation

    life quality assessed by SF-36 (The Short-Form-36 Health Survey). The SF-36 scale is a tool used to assess health-related quality of life, including eight dimensions: Physical Functioning (PF), Role-Physical (RP), Bodily Pain (BP), General Health (GH), Vitality (VT), Social Functioning (SF), Role-Emotional (RE), and Mental Health (MH). Each dimension has its unique scoring criteria, and the score range for each dimension is from 0 to 100 points. Higher scores indicate better health outcomes

  5. KCCQ

    Time frame: baseline, 1, 3, 6, 12 months post-operation

    Kansas City Cardiomyopathy Questionnaire, KCCQ is designed to assess the health status and quality of life of patients with heart failure. The score range is from 0 to 100 and higher scores reflect better health status and quality of life.

  6. Removal rate of LVAD

    Time frame: From enrollment to the end of study at 12 months

    Percentage of subjects who had their Left Ventricular Assist Device (LVAD) successfully removed after surgery

Study contacts

Contact information is provided by the study sponsor or research team.

Jiaxian Wang, MD, PhD

CONTACT

[email protected]

+86-18565616060

Sponsors and collaborators

Lead sponsor

HELP Therapeutics Co., Ltd.

Industry

Registry information

Official study title

Study on the Safety and Efficacy of Human IPSC-Derived Cardiomyocytes in the Treatment of End-Stage Heart Failure

Important dates

Study start
2025
Primary completion
2027
Study completion
2027
First posted
Mar 10, 2025
Registry last updated
Mar 14, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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