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ST Elevation Myocardial InfarctionPhase 2NCT06147986

Evaluate the Efficacy and Safety of Allogeneic Umbilical Cord Mesenchymal Stem Cells as an Add-On Treatment for Acute ST-elevation Myocardial Infarction (STEMI) Patients

A Phase 2 study testing Allogeneic umbilical cord mesenchymal stem cells in people with ST Elevation Myocardial Infarction, run by Ever Supreme Bio Technology Co., Ltd. at 1 site in Taiwan.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
Search all trials

Trial summary

This phase IIa study is to identify the efficacy and safety of IC(intracoronary) and IV(Intravenous) administrations of UMSC01 in patients with STEMI . This product is a new cell therapy product for treating AMI and produced by Ever Supreme Bio Technology Co., Ltd in Taiwan. Read more about this study

Who is it for?
Ages 20 to 75 years
Conditions the study is for
ST Elevation Myocardial Infarction
What is being tested?
Allogeneic umbilical cord mesenchymal stem cells
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
41 participants
Where
1 siteTaiwan
Study dates
24 Sep 2023to 24 Jun 2027
Phase
Phase 2
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 20 to 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Male or female subjects are aged ≥ 20, < 76 years old on date of consent
  • Presence of typical ischemic chest pain within 12 hours after symptoms onset and clinical diagnosis of acute STEMI according to the 2013 American College of Cardiology (ACC) Foundation/ American Heart Association (AHA) guideline for the Management of STEMI
  • Has undergone standard-of-care for STEMI; the immediate reperfusion management should include primary percutaneous coronary intervention (PCI), aspiration thrombectomy and adjunctive antithrombotic therapy within 12 hours after the onset of symptoms
  • Received successful acute reperfusion therapy (residual stenosis visually < 50% and thrombolysis in myocardial infarction flow ≥ 2) with placement of an intracoronary stent and having a patent infarct-related artery suitable for cell infusion to the target area of abnormal wall motion following myocardial infarction
  • Evidence of LVEF ≥ 30% and < 50% diagnosed by echocardiogram
  • Evidence of stable vital signs prior to IC infusion of UMSC01 (Day 1), defined as no clinical significance of abnormal respiration, afebrile as judged by the investigator, systolic pressure ≥ 90 mmHg and < 160 mmHg, heart rate > 50/min and < 110/min
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  • Adequate pulmonary function test defined as a force expiratory volume 1 second (FEV1) > 50% predicted and peripheral artery oxygen saturation ≥ 95% at room air
  • Adequate hematopoietic function at the screening and before administration of study medication:
  • Platelets ≥ 100,000 counts/μL.
  • Hemoglobin ≥ 8 g/dL.
  • PT, APTT ≤ 1.5X upper limit of normal (ULN).
  • Has signed and dated informed consent
  • All male subjects and female subjects with child-bearing potential (between puberty and 2 years after menopause) should use appropriate contraception method(s) shown below, for at least 1 year after the last UMSC01 treatment a. Total abstinence (when this is in line with the preferred and usual lifestyle of the subject. Periodic abstinence (e.g., calendar, ovulation, symptothermal, post-ovulation methods) and withdrawal are not acceptable methods of contraception) b. Female sterilization (have had surgical bilateral oophorectomy with or without hysterectomy) or tubal ligation at least six weeks before taking study treatment. In case of oophorectomy alone, only when the reproductive status of the woman has been confirmed by follow up hormone level assessment c. Male sterilization (at least 6 months prior to screening). For female subjects on the study, the vasectomized male partner should be the sole partner for that subject d. Combination of any two of the following listed methods: (d.1+d.2 or d.1+d.3, or d.2+d.3): d.1 Use of oral, injected or implanted hormonal methods of contraception or other forms of hormonal contraception that have comparable efficacy (failure rate < 1%), for example hormone vaginal ring or transdermal hormone contraception d.2 Placement of an intrauterine device (IUD) or intrauterine system (IUS) d.3 Barrier methods of contraception: Condom or occlusive cap (diaphragm or cervical/vault caps) with spermicidal foam/gel/film/cream/vaginal suppository

Who cannot join

  • With cardiogenic shock (defined as systolic blood pressure <80mmHg requiring vasopressors, intra-aortic balloon pump(IABP) or extracorporeal membrane oxygenation (ECMO)
  • Presence of severe aortic stenosis or regurgitation according to the recommendation of the 2020 ACC/AHA guideline for themanagement of patients with valvular heart disease
  • Presence of severe mitral stenosis or regurgitation according to the recommendation of the 2020 ACC/AHA guideline for the management of patients with valvular heart disease
  • With a need to undergo staged coronary intervention therapy or coronary artery bypass grafting (CABG) surgery
  • Under an immuno-compromised condition, with known clinically significantly autoimmune conditions, or receiving immunosuppressive treatments within 12 weeks prior to the study intervention
  • Presence of any active malignancy that required treatment within 2 years prior to Screening Visit
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  • With ongoing or within the past 2 years serious medical conditions (e.g., concurrent illness), other clinically significant cardiovascular diseases, psychiatric condition (e.g., alcoholism, drug abuse), medical history, physical findings, or laboratory abnormality that in the investigators' opinion could interfere with the results of the trial or adversely affect the safety of the subject
  • With inadequate hepatic and renal function after onset of STEMI: aspartate aminotransferase (AST) and alanine aminotransferase (ALT) ≥ 4 x upper limit of normal (ULN); estimated glomerular filtration rate (eGFR) < 40 mL/min, calculated by Modification of Diet in Renal Disease equation (MDRD) 175 formula
  • With uncontrolled diabetes mellitus (blood glucose level > 200 mg/dL or HbA1c ≥ 8.5%)
  • Participation in a clinical trial of an investigational product within 3 months prior to Screening Visit
  • Known or suspected hypersensitivity or previous adverse reaction to any ingredients of study product
  • Female subject with child-bearing potential (between puberty and 2 years after menopause) who is pregnant, lactating or has positive urine pregnancy test at Screening Visit
  • Subjects not suitable to participate the trial as judged by the Investigator(s)

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

Taiwan1 site, 1 recruiting
  • China Medical University Hospital

    Taichung

    Sammi Hsu, cthsu@ever-supreme.com.tw

    Yu-Chen Wang, PhD

    Recruiting

Other trials in Taiwan

About this study

Official title: A Phase IIa, Dose-Escalation Followed by Randomized, Open-Label, Parallel-Group Study to Evaluate the Efficacy and Safety of Allogeneic Umbilical Cord Mesenchymal Stem Cells as an Add-On Treatment for Acute ST-elevation Myocardial Infarction (STEMI) Patients

This phase IIa study is to identify the efficacy and safety of IC(intracoronary) and IV(Intravenous) administrations of UMSC01 in patients with STEMI . This product is a new cell therapy product for treating AMI and produced by Ever Supreme Bio Technology Co., Ltd in Taiwan. The previous Phase I, open-label, single arm, single center study was conducted to evaluate the safety and to explore the efficacy of UMSC01 in subjects with STEMI via intracoronary administration followed by intravenous infusion. This first-in-human Phase I study of UMSC01 was completed on August 2nd, 2021. Among 8 subjects enrolled, no subjects experienced treatment-related TEAEs.

Read the detailed description

This is a two-stage Phase IIa, dose escalation followed by randomized, open-label, controlled with standard treatment, parallel-group study to evaluate the efficacy and safety of allogeneic umbilical cord mesenchymal stem cell, UMSC01, as an add-on treatment in subjects with STEMI. Subjects should present typical ischemic chest pain within 12 hours after symptoms onset and are diagnosed acute STEMI. Subjects should have undergone standard-of-care for STEMI, the immediate reperfusion management should include primary percutaneous coronary intervention (PCI), aspiration thrombectomy, and adjunctive antithrombotic therapy within 12 hours after the onset of symptoms. This study aims to treat eligible subjects with UMSC01 as an add-on stem cell therapy along with standard-of-care for STEMI. The investigational product (IP), UMSC01, will be applied to subjects via intracoronary (IC) infusion on the 4th - 5th day after the onset of the heart attack, followed by intravenous (IV) infusion 2 days after the IC infusion.

Being tested
Allogeneic umbilical cord mesenchymal stem cells, Control group
Medical subject headings
ST Elevation Myocardial Infarction

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Allogeneic umbilical cord mesenchymal stem cellsBiological

    UMSC01 cells will be IC infusion followed by IV infusion with 24 months of follow up after treatment.

  • Control groupOther

    Standard-of-care for STEMI

Study groups in NCT06147986
Study groupRoleWhat they receive
UMSC01ExperimentalUMSC01 cells mixed with normal saline will be administered to patients after the onset of diagnosis of ST-elevation Myocardial Infarction.
Receives: Biological: Allogeneic umbilical cord mesenchymal stem cells
standard treatmentOtherStandard-of-care for ST-elevation Myocardial Infarction
Receives: Other: Control group

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Incidence of adverse event (AE) as presented by MedDRA coding system

    AE incidences up to 1-month

    Measured: from Day 1 to 1-month follow-up period

  2. Incidence of Serious adverse event (SAE) as presented by MedDRA coding system

    SAE incidences up to 1-month

    Measured: from Day 1 to 1-month follow-up period

  3. Incidence of Suspected and unexpected serious adverse reaction (SUSAR) as presented by MedDRA coding system

    SUSAR incidences up to 1-month

    Measured: from Day 1 to 1-month follow-up period

  4. Cardiopulmonary Exercise Testing (CPET)

    Change in peak oxygen consumption (VO2) at the end of maximal exercise over the study period

    Measured: from Day 6 to 6-month follow-up period

Secondary outcomes (22)
  1. Percentage of subject with cardiovascular hospitalizations or urgent care/ emergency room visits for heart failure/exacerbation of coronary artery disease (CAD)

    The percentage of subject with cardiovascular hospitalizations or urgent care/ emergency room visits for heart failure/exacerbation of coronary artery disease (CAD) over the study period

    Measured: from Day 3 to 24-month follow-up period

  2. Percentage of subject with major adverse cardiovascular events (MACE)

    The percentage of subject with major adverse cardiovascular events (MACE), including death, recurrent acute myocardial infarction (AMI), stroke, and target vessel revascularization over the study period

    Measured: from Day 6 to 24-month follow-up period

  3. Percentage of subject with ventricular tachycardia/ventricular fibrillation (VT/VF)

    The percentage of subject with ventricular tachycardia/ventricular fibrillation (VT/VF) over the study period

    Measured: from Day 6 to 24-month follow-up period

  4. New York Heart Association (NYHA) Classification

    Changes in New York Heart Association (NYHA) classification over the study period

    Measured: from Day 6 to 24-month follow-up period

  5. Echocardiography

    Changes in echocardiography variables regional left ventricular wall-motion score index (RWMSI) in total score over the study period

    Measured: from Day 6 to 24-month follow-up period

  6. Echocardiography

    Changes in echocardiography variables left ventricular end-systolic volume (LVESV) in mL over the study period

    Measured: from Day 6 to 24-month follow-up period

  7. Echocardiography

    Changes in echocardiography variables left ventricular end-diastolic volume (LVEDV) in mL over the study period

    Measured: from Day 6 to 24-month follow-up period

  8. Echocardiography

    Changes in echocardiography variables left ventricular ejection fraction (LVEF) in % over the study period

    Measured: from Day 6 to 24-month follow-up period

  9. Echocardiography

    Changes in echocardiography variables stroke volume (SV) in mL over the study period

    Measured: from Day 6 to 24-month follow-up period

  10. Echocardiography

    Changes in echocardiography variables LV fractional shortening in % over the study period

    Measured: from Day 6 to 24-month follow-up period

  11. Cardiopulmonary Exercise Testing (CPET)

    Changes in peak oxygen consumption (VO2) at the end of maximal exercise over the study period

    Measured: from Day 6 to 24-month follow-up period

  12. Cardiopulmonary Exercise Testing (CPET)

    Changes in exercise time (min) at the end of maximal exercise over the study period

    Measured: from Day 6 to 24-month follow-up period

  13. Cardiopulmonary Exercise Testing (CPET)

    Changes in ventilatory efficiency/carbon dioxide production (VE/VCO2) slope at the end of maximal exercise over the study period

    Measured: from Day 6 to 24-month follow-up period

  14. Cardiopulmonary Exercise Testing (CPET)

    Changes in peak heart rate at the end of maximal exercise over the study period

    Measured: from Day 6 to 24-month follow-up period

  15. 6-minute walk distance (6MWD)

    Changes in 6-minute walk distance (6MWD) over the study period

    Measured: from Day 6 to 24-month follow-up period

  16. Serum level of amino-terminal pro-brain natriuretic peptide (NT pro-BNP)

    Changes in serum level of amino-terminal pro-brain natriuretic peptide (NT pro-BNP) over the study period

    Measured: from Day 6 to 24-month follow-up period

  17. cardiac enzyme levels

    Changes in cardiac enzyme levels including creatinine kinase (CK), creatinine kinase-MB (CK-MB), and troponin I over the study period

    Measured: from Day 6 to 1-month follow-up period

  18. Pulmonary function test

    Changes in forced expiratory volume (FEV1) will be tested by Spirometry over the study period

    Measured: from Day 6 to 24-month follow-up period

  19. Incidence of adverse event (AE) as presented by MedDRA coding system

    AE incidences over the study period

    Measured: from Day 3 to 24-month follow-up period

  20. Incidence of serious adverse event (SAE) as presented by MedDRA coding system

    SAE incidences over the study period

    Measured: from Day 3 to 24-month follow-up period

  21. Incidence of suspected and unexpected serious adverse reactions (SUSAR) s presented by MedDRA coding system

    Suspected and unexpected serious adverse reactions (SUSAR) incidences over the study period

    Measured: from Day 3 to 24-month follow-up period

  22. 12-lead ECG Test

    Changes in 12-lead electrocardiogram (ECG) parameters in PR, QRS, QT, QTc, and RR intervals over the study period

    Measured: from Day 1 to 24-month follow-up period

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted28 Nov 2023
  2. Study start24 Sep 2023
  3. Primary completion24 Jun 2027 (estimated)
  4. Study completion24 Jun 2027 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
41 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06147986
Sponsor's protocol ID
ES-CMSC01-A1201
Status last verified
Sep 2026
First submitted
8 May 2023
Last updated
23 Sep 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Allogeneic umbilical cord mesenchymal stem cells in people with ST Elevation Myocardial Infarction, run by Ever Supreme Bio Technology Co., Ltd. at 1 site in Taiwan.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 13 inclusion and 13 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 23 Sep 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Taiwan. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Sammi Hsu (886-4-2325-288, cthsu@ever-supreme.com.tw), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Incidence of adverse event (AE) as presented by MedDRA coding system (time frame: from Day 1 to 1-month follow-up period). The study lists 4 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 23 Sep 2026.

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