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A Phase I Study of Allogeneic Myocardium-Derived Mesenchymal Stem Cells (HB1011) in Patients With Ischemic Cardiomyopathy (HEART-1)

30 september 2026 bijgewerkt door: HieraBio Inc.

Prospective, Open-label, Dose-escalation, Single-center, Non-randomized Phase I Study to Evaluate Safety and Tolerability of Allogeneic Myocardium-derived Mesenchymal Stem Cells (HB1011) in Patients With Ischemic Cardiomyopathy

Ischemic cardiomyopathy occurs when the heart muscle is permanently weakened due to blocked coronary arteries that limit blood flow. Current treatments, including medications and lifestyle changes, can manage symptoms but cannot restore the damaged heart muscle.

Stem cell therapy offers a promising approach to repair and regenerate damaged heart tissue. This study will evaluate the safety and tolerability of HB1011 - an allogeneic myocardium-derived mesenchymal stem cell therapy - in patients with ischemic cardiomyopathy who are undergoing coronary artery bypass grafting (CABG) surgery. HB1011 will be injected directly into the damaged heart muscle during the CABG procedure. Participants will receive different doses of HB1011, starting from a lower dose and gradually increasing, to identify the safest and most appropriate dose for future studies.

Studie Overzicht

Gedetailleerde beschrijving

Participation in this study will last approximately 12 months following treatment. Prior to surgery, potential participants will undergo a screening visit to confirm eligibility. Screening assessments will include a physical exam, review of medical history and current medications, blood tests, electrocardiogram (ECG), echocardiogram, and cardiac MRI. Eligible participants will be admitted to the hospital 1 to 2 days before their scheduled CABG surgery for final pre-operative assessments.

On the day of surgery, CABG will be performed as planned. Once the bypass procedure is complete and before chest closure, HB1011 will be injected directly into the damaged heart muscle through a transepicardial approach. Participants will be assigned to either a low-dose or high-dose group following a sequential dose-escalation design, with safety carefully monitored at each stage before proceeding to the next dose level. After receiving the injections, participants will remain hospitalized for post-operative monitoring and observation.

Following discharge, participants will return for scheduled outpatient visits at 1, 3, 6, 9, and 12 months after surgery. At each visit, safety and tolerability will be assessed through physical exams, blood tests, and cardiac evaluations. Exploratory assessments of heart function, including echocardiogram and cardiac MRI, will be performed at selected time points to evaluate any changes over the course of the study.

Studietype

Ingrijpend

Inschrijving (Geschat)

12

Fase

  • Fase 1

Contacten en locaties

In dit gedeelte vindt u de contactgegevens van degenen die het onderzoek uitvoeren en informatie over waar dit onderzoek wordt uitgevoerd.

Studiecontact

Studie Locaties

    • Gyeonggi-do
      • Seongnam-si, Gyeonggi-do, Zuid -Korea, 13620
        • Werving
        • Seoul National University Bundang Hospital
        • Contact:

Deelname Criteria

Onderzoekers zoeken naar mensen die aan een bepaalde beschrijving voldoen, de zogenaamde geschiktheidscriteria. Enkele voorbeelden van deze criteria zijn iemands algemene gezondheidstoestand of eerdere behandelingen.

Geschiktheidscriteria

Leeftijden die in aanmerking komen voor studie

19 jaar tot 85 jaar (Volwassen, Oudere volwassene)

Accepteert gezonde vrijwilligers

Nee

Geslachten die in aanmerking komen voor studie

Allemaal

Beschrijving

Inclusion Criteria:

  • Scheduled to undergo coronary artery bypass grafting (CABG) surgery
  • Left ventricular ejection fraction (LVEF) ≤ 40%
  • Age 19 to 85 years, male or female
  • Diagnosed with ischemic cardiomyopathy
  • NYHA functional Class II-IV at screening
  • Ability to understand the study and willing to provide written informed consent

Exclusion Criteria:

  • New myocardial infarction within 28 days prior to screening, or unstabilized cardiac enzyme levels at screening
  • Participation in another clinical trial involving an investigational drug or device within 6 months prior to screening
  • Contraindication to cardiac MRI (e.g., pacemaker, severe claustrophobia)
  • Pregnant, breastfeeding, or unwilling to use adequate contraception during the study
  • History of malignancy within 5 years, severe allergic reaction, prior cardiac surgery (including CABG), stroke within 3 months, or incomplete recovery from major surgery within 12 weeks
  • Significant comorbidities at screening, including severe ventricular arrhythmia, uncontrolled atrial fibrillation, severe or unstable COPD, congenital heart disease, active viral or severe infection, autoimmune disease, or active tuberculosis
  • Active hepatitis B, hepatitis C, or HIV infection
  • Systemic immunosuppressive therapy at protocol-defined high doses, or high-dose short-term steroid therapy within 4 weeks prior to treatment
  • Suspected active infection within 48 hours before surgery
  • Life expectancy less than 1 year due to non-cardiac conditions
  • Requirement for concomitant major cardiac or aortic procedures at the time of CABG (e.g., valve repair/replacement, aortic surgery)
  • Severe chronic renal impairment (eGFR < 30 mL/min/1.73m²), renal replacement therapy, or significant hepatic disease
  • Hemodynamically unstable patients
  • Severe pulmonary hypertension or conditions requiring resting oxygen therapy
  • Panel reactive antibody (PRA) Class I or II ≥ 50%
  • HbA1c > 10% in patients with diabetes
  • Severe peripheral arterial disease with rest pain, ischemic ulcer, or gangrene
  • Hypersensitivity to bovine-derived proteins
  • Any other condition deemed unsuitable for participation by the investigator

Studie plan

Dit gedeelte bevat details van het studieplan, inclusief hoe de studie is opgezet en wat de studie meet.

Hoe is de studie opgezet?

Ontwerpdetails

  • Primair doel: Behandeling
  • Toewijzing: Niet-gerandomiseerd
  • Interventioneel model: Sequentiële toewijzing
  • Masker: Geen (open label)

Wapens en interventies

Deelnemersgroep / Arm
Interventie / Behandeling
Experimenteel: Group 1: Low Dose of HB1011

Drug: HB1011 (0.5 × 10⁷ cells), transepicardial intramyocardial injection at the time of CABG

Biological: Lower dose of HB1011 injection Participants will receive between 5 intramyocardial injections of 1 million allogeneic myocardium-derived mesenchymal stem cells for a total of 0.5 x 10^7 cells. The injections will be administered following completion of CABG surgery.

Biological: Higher dose of HB1011 injection Participants will receive between 5 intramyocardial injections of 2 million allogeneic myocardium-derived mesenchymal stem cells for a total of 1.0 x 10^7 cells. The injections will be administered following completion of CABG surgery.

Experimenteel: Group 2: High Dose of HB1011

Drug: HB1011 (1.0 × 10⁷ cells), transepicardial intramyocardial injection at the time of CABG

Biological: Lower dose of HB1011 injection Participants will receive between 5 intramyocardial injections of 1 million allogeneic myocardium-derived mesenchymal stem cells for a total of 0.5 x 10^7 cells. The injections will be administered following completion of CABG surgery.

Biological: Higher dose of HB1011 injection Participants will receive between 5 intramyocardial injections of 2 million allogeneic myocardium-derived mesenchymal stem cells for a total of 1.0 x 10^7 cells. The injections will be administered following completion of CABG surgery.

Wat meet het onderzoek?

Primaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Adverse event, AE
Tijdsspanne: 12 Months

Treatment-Emergent Adverse Event, TEAE, Adverse Drug Reaction, ADR, Serious Adverse Event, SAE, Serious Adverse Drug Reaction, SADR, Suspected Unexpected Serious Adverse Drug Reaction, SUSAR

12 Months
DLT, Dose Limiting Toxicity
Tijdsspanne: 12 Months

DLT, Dose Limiting Toxicity

12 Months

Secundaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Change in LVEF by Echocardiography
Tijdsspanne: Baseline, 3, 6, and 12 months post-treatment

Change in left ventricular ejection fraction (LVEF) from baseline as measured by echocardiography

Baseline, 3, 6, and 12 months post-treatment
Change in LVEF by Cardiac MRI
Tijdsspanne: Baseline, 6, and 12 months post-treatment

Change in LVEF from baseline as measured by cardiac MRI

Baseline, 6, and 12 months post-treatment
Change in Infarct Scar Size (ISS)
Tijdsspanne: Baseline, 6, and 12 months post-treatment

Change in infarct scar size from baseline as measured by delayed contrast-enhanced cardiac MRI

Baseline, 6, and 12 months post-treatment
Regional Wall Motion Abnormality (RWMA)
Tijdsspanne: Baseline, 6, and 12 months post-treatment

Change in regional wall motion abnormality at the site of HB1011 injection as assessed by echocardiography

Baseline, 6, and 12 months post-treatment
NYHA Functional Classification
Tijdsspanne: Baseline, 1, 3, 6, 9, and 12 months post-treatment

Change in NYHA functional class based on patient-reported activity limitation (Improved / Unchanged / Worsened)

Baseline, 1, 3, 6, 9, and 12 months post-treatment
MACCE Incidence
Tijdsspanne: Within 12 months post-treatment

Composite rate of major adverse cardiac and cerebrovascular events including death, hospitalization for heart failure, non-fatal recurrent MI, target vessel revascularization, and stroke

Within 12 months post-treatment
Mortality
Tijdsspanne: Within 12 months post-treatment

Proportion of patients who died following CABG surgery, categorized as early mortality (within 30 days), in-hospital mortality, and late mortality (after 30 days)

Within 12 months post-treatment

Medewerkers en onderzoekers

Hier vindt u mensen en organisaties die betrokken zijn bij dit onderzoek.

Sponsor

Studie record data

Deze datums volgen de voortgang van het onderzoeksdossier en de samenvatting van de ingediende resultaten bij ClinicalTrials.gov. Studieverslagen en gerapporteerde resultaten worden beoordeeld door de National Library of Medicine (NLM) om er zeker van te zijn dat ze voldoen aan specifieke kwaliteitscontrolenormen voordat ze op de openbare website worden geplaatst.

Bestudeer belangrijke data

Studie start (Werkelijk)

23 juni 2026

Primaire voltooiing (Geschat)

31 oktober 2027

Studie voltooiing (Geschat)

31 januari 2028

Studieregistratiedata

Eerst ingediend

30 september 2026

Eerst ingediend dat voldeed aan de QC-criteria

30 september 2026

Eerst geplaatst (Werkelijk)

6 oktober 2026

Updates van studierecords

Laatste update geplaatst (Werkelijk)

6 oktober 2026

Laatste update ingediend die voldeed aan QC-criteria

30 september 2026

Laatst geverifieerd

1 september 2026

Meer informatie

Termen gerelateerd aan deze studie

Plan Individuele Deelnemersgegevens (IPD)

Bent u van plan om gegevens van individuele deelnemers (IPD) te delen?

NEE

Informatie over medicijnen en apparaten, studiedocumenten

Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel

Nee

Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct

Nee

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