The Application of the Umbilical Cord Mesenchymal Stem Cells in the Complex Treatment of Non-ischemic Heart Failure

Last updated: April 16, 2025
Sponsor: The Research-Clinical Center for Cardiac Surgery and Transplantology LLP
Overall Status: Completed

Phase

1/2

Condition

Chest Pain

Congestive Heart Failure

Circulation Disorders

Treatment

Cardiac catheterization

Intracoronary administration of the umbilical cord-derived mesenchymal stromal cells

Intracoronary administration of umbilical cord-derived MSCs

Clinical Study ID

NCT04325594
RCCCT 02-02-2020
  • Ages > 18
  • All Genders

Study Summary

The purpose of this prospective single-arm clinical study was to evaluate the safety and potential efficacy of intracoronary administration of allogeneic umbilical cord-derived mesenchymal stromal cells (MSCs) as an addition to standard medical therapy in patients with chronic non-ischemic heart failure.

Eligibility Criteria

Inclusion

Inclusion Criteria:

  • Men and women aged 18 years and older

  • Registered at the Research-Clinical Center for Cardiac Surgery and Transplantology

  • Established diagnosis of non-ischemic dilated cardiomyopathy (NYHA Class III-IV)

  • Non-ischemic etiology confirmed by coronary angiography or contrast-enhanced cardiacCT

  • Left ventricular ejection fraction (LVEF) ≤ 35% based on echocardiography or cardiacCT

  • Clinical indications for implantation of an implantable cardioverter-defibrillator (ICD), regardless of actual implantation status

  • No clinical or laboratory signs of dysfunction or insufficiency of other majororgans

  • No history of malignancy within the past 5 years and no abnormal tumor markers

  • Signed written informed consent

Exclusion

Exclusion Criteria:

  • Ischemic heart disease or prior cardiac surgery, including coronary artery stenting

  • Significant valvular heart disease, intracardiac thrombus, left ventricularaneurysm, hypertrophic, postpartum, alcoholic or restrictive cardiomyopathy,congenital heart defects, or resistant hypertension

  • Stroke within the past 2 years

  • Autoimmune or immunodeficiency disorders

  • Polyvalent allergy

  • Decompensated chronic comorbidities

  • Use of systemic corticosteroids, cytotoxic or immunosuppressive drugs (e.g.,cyclophosphamide, methotrexate, cyclosporine, azathioprine) within 4 weeks beforeenrollment

  • Positive tests for hepatitis B or C, syphilis, or HIV/AIDS

  • Active systemic infections requiring targeted antibiotic therapy

  • Untreated peptic ulcer disease or history of gastrointestinal bleeding

  • Clinically significant traumatic brain injury requiring treatment

  • Uncontrolled epileptic seizures

  • Porphyria

  • Requirement for hospice-level care

  • Alcohol or drug abuse, lack of permanent residence, severe depression,disorientation, or inability to participate in follow-up

Study Design

Total Participants: 30
Treatment Group(s): 3
Primary Treatment: Cardiac catheterization
Phase: 1/2
Study Start date:
March 01, 2020
Estimated Completion Date:
April 01, 2023

Study Description

This prospective, open-label, single-arm clinical trial investigated the safety and potential efficacy of intracoronary administration of allogeneic umbilical cord-derived mesenchymal stromal cells (MSCs) in patients with chronic non-ischemic heart failure.

A total of 30 patients were enrolled. All participants received standard pharmacological therapy and underwent a single intracoronary infusion of 1×10⁷ MSCs delivered into the left coronary artery during routine cardiac catheterization. The primary objective was to assess the safety of the cell therapy over the first 5 days of hospitalization. Secondary outcomes included changes in left ventricular ejection fraction (LVEF), end-diastolic and end-systolic volumes and diameters, serum NT-proBNP levels, NYHA functional class, 6-minute walk test distance, and quality of life indicators (SF-12, KCCQ, MLHFQ) at 1, 3, and 6 months post-infusion.

Although the study was originally registered with a control group and randomization, it was ultimately conducted as a single-arm design due to ethical and logistical constraints in recruitment. All patients received the same intervention, and no allocation or randomization was performed.

While most patients had clinical indications for an implantable cardioverter-defibrillator (ICD) in accordance with international guidelines, not all had the device implanted due to personal refusal of the procedure. Therefore, ICD presence was not required for inclusion in the study.

Although remuscularization of the myocardium was not a predefined endpoint, retrospective analysis revealed post-treatment thickening of the left ventricular posterior wall and interventricular septum in a subset of patients, as observed on cardiac computed tomography. This structural change was associated with improved systolic function and may guide future hypothesis-driven research.

Connect with a study center

  • The Research-Clinical Center for Cardiac Surgery and Transplantology LLP

    Taraz, Zhambyl 080000
    Kazakhstan

    Site Not Available

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