Recruiting
Phase 2

Umbilical Cord MSCs

Sponsor:

Roberto Bolli

Code:

NCT06145035

Conditions

Ischemic Heart Disease

Eligibility Criteria

Sex: All

Age: 21 - 70+

Healthy Volunteers: Not accepted

Interventions

umbilical cord-derived mesenchymal stromal cells (UC-MSCs)

Study Details

Brief summary:

This is a Phase IIA, randomized, double blind, placebo controlled, multicenter study designed to assess the safety, feasibility, and efficacy of umbilical cord derived mesenchymal stromal cells (UC MSCs, stem cells), administered intravenously (IV) as a single dose or repeated doses, in patients with ischemic cardiomyopathy (ICM).

Conditions

Ischemic Heart Disease

Study ID

NCT06145035

Start date

Mar 4, 2024

Status verified date

May, 2026

Completion date

Sep 1, 2028

Anticipated

Primary completion date

Jan 1, 2028

Anticipated

Eligibility Criteria

Eligibility Criteria

Sex: All

Age: 21 - 70+

Healthy Volunteers: Not accepted

Inclusion Criteria:

1. Be ≥ 21 and ≤ 85 years of age.
2. Have documented CAD (> 70% lesion in at least 1 epicardial vessel) with evidence of myocardial injury, LV dysfunction, and clinical evidence of HF.
3. Have a "detectable" area of myocardial injury defined as ≥ 5% LV involvement (infarct volume) and any subendocardial involvement by MRI.
4. Have an EF ≤ 40% by MRI.
5. Be receiving guideline driven medical therapy for HF (beta blockers, diuretics, ACE inhibitors or ARBs, or ARNIs, aldosterone antagonists, hydralazine isosorbide, sodium-glucose transporter 2 inhibitors) ) at stable, maximally tolerated doses for ≥ 1 month prior to consent. "Stable" is defined as stable dose with no changes for 30 days after last dose adjustment. For beta blockade "stable" is defined as no greater than a 50% reduction in dose or no more than a 100% increase in dose.
6. Have NYHA class I, II or III symptoms of HF (see Appendix A)
7. If a female of childbearing potential, be willing to use one form of birth control for the duration of the study and undergo a serum pregnancy test at baseline and within 36 hours prior to infusion

Exclusion Criteria:

1. Indication for standard of care surgery (including valve surgery, placement of left ventricular assist device, or imminent heart transplantation), coronary artery bypass grafting (CABG) procedure, and/or percutaneous coronary intervention (PCI) for the treatment of ischemic and/or valvular heart disease. Subjects who require or undergo PCI should undergo these procedures a minimum of 3 months in advance of randomization. Subjects who require or undergo CABG should undergo these procedures a minimum of 3 months in advance of randomization. In addition, subjects who develop a need for revascularization following enrollment should undergo revascularization without delay. Indication for imminent heart transplantation is defined as a high likelihood of transplant prior to collection of the 12 month study endpoint. Candidates cannot be UNOS 1A or 1B, and they must have documented a low probability of being transplanted.
2. Severe valvular (any valve) insufficiency and/or regurgitation within 12 months of consent
3. History of ischemic or hemorrhagic stroke within 90 days of consent
4. Presence of a pacemaker and/or implantable cardiac device (ICD) generator with any of the following limitations/conditions:

  • manufactured before the year 2000
  • leads implanted < 6 weeks prior to consent
  • non transvenous epicardial or abandoned leads
  • subcutaneous ICDs (if not MRI compatible)
  • leadless pacemakers
  • any other condition that, in the judgment of device trained staff, would deem an MRI contraindicated
5. Pacemaker dependence with an ICD (Note: pacemaker dependent candidates without an ICD are not excluded)
6. A cardiac resynchronization therapy (CRT) device implanted less than 3 months prior to consent.
7. Other MRI contraindications (e.g. patient body habitus incompatible with MRI)
8. An appropriate ICD firing or anti tachycardia pacing (ATP) for ventricular fibrillation or ventricular tachycardia within 30 days of consent
9. Ventricular tachycardia ≥ 20 consecutive beats without an ICD within 3 months of consent, or symptomatic Mobitz II or higher degree atrioventricular block without a functioning pacemaker within 3 months of consent
10. Evidence of active myocarditis
11. Baseline glomerular filtration rate (eGFR) < 35 ml/min/1.73m2
12. Blood glucose levels (HbA1c) >10%
13. Hematologic abnormality evidenced by hematocrit < 25%, white blood cell < 2,500/ul or platelet count < 100,000/ul
14. Liver dysfunction evidenced by enzymes (AST and ALT) ˃ 3 times the ULN.
15. HIV and/or active HBV or HCV
16. Known history of anaphylactic reaction to penicillin or streptomycin
17. Received gene or cell based therapy from any source within the previous 12 months.
18. History of malignancy within 2 years (i.e., subjects with prior malignancy must be disease free for 2 years), excluding basal cell carcinoma and cervical carcinoma in situ which have been definitively treated.
19. Condition that limits lifespan to < 1 year
20. History of drug abuse (illegal "street" drugs except marijuana, or prescription medications not being used appropriately for a pre-existing medical condition) or alcohol abuse (≥ 5 drinks/day for ˃ 3 months), or documented medical, occupational, or legal problems arising from the use of alcohol or drugs within the past 12 months.
21. Participation in an investigational therapeutic or device trial within 30 days of consent
22. Cognitive or language barriers that prohibit obtaining informed consent or any study elements
23. Pregnancy or lactation or plans to become pregnant in the next 12 months.
24. Any other condition that, in the judgment of the Investigator or Sponsor, would impair enrollment, study product administration, or follow up.

Study Design

Enrollment

60 participants

Anticipated

Allocation

Randomized

Intervention Model

Parallel Assignment

Primary purpose

Treatment

Interventions and Outcome Measures

Arms

placebo comparator: control group

Four doses of vehicle (Plasma-Lyte A supplemented with 1% HSA) will be given 2 months apart. Each dose will be infused IV at a rate of 2 ml/min for a total of 60 ml over 30 minutes.

experimental: single-dose group

One dose of UC-MSCs (100 x 106 cells) will be infused IV at a rate of 2 ml/min for a total of 60 ml over 30 minutes (3.3 million cells/ml/min). This will be followed by three IV infusions of placebo (same volume and rate) 2, 4, and 6 months later.

experimental: repeated-dose group

Four doses of UC-MSCs (100 x 106 cells each) will be given 2 months apart. Each dose will be infused IV at a rate of 2 ml/min for a total of 60 ml over 30 minutes (3.3 million cells/ml/min).

Interventions

umbilical cord-derived mesenchymal stromal cells (UC-MSCs)

The study product will consist of 100 million UC-MSCs suspended in a final volume of 60 ml given at a rate of 3.3 million cells/min. The product will be infused into vein via intravenous line placed in the arm.

Primary outcome measure

  • change in LVEF (D LVEF) between baseline (M0) and 12 months after the first study product infusion (SPI) (M12) [ Time Frame: Baseline, 12 months ]

Central Contacts and Locations

Central contacts

Locations

University of Miami Miller School of Medicine

Recruiting

Miami, Florida, United States, 33136

Contacts

University of Louisville School of Medicine, Institute of Molecular Cardiology

Recruiting

Louisville, Kentucky, United States, 40202

Contacts

Principal Investigator:

Roberto Bolli, MD

The Texas Heart Institute Houston Texas

Recruiting

Houston, Texas, United States, 77030

Contacts

More Information

Sponsor

Roberto Bolli

Last update posted

May 13, 2026

Last verified

May, 2026

Keywords

  • ischemic cardiopathy
  • UC-MSCs

Trial information was received from ClinicalTrials.gov and was last updated on 2026-09-09. This information was provided to ClinicalTrials.gov by Roberto Bolli on 2026-05-13.