Actively Recruiting

Phase 2
Age: 20Years - 70Years
All Genders
ID06752720

Intracerebral Autologous Mesenchymal Stem Cell Transplantation Therapy for Patients with Chronic Ischemic Stroke Phase 2a Clinical Trial

Led by Hokkaido University Hospital · Updated on 2025-01-24

8

Participants Needed

1

Research Sites

156 weeks

Total Duration

On this page

Sponsors

H

Hokkaido University Hospital

Lead Sponsor

R

RAINBOW Inc.

Collaborating Sponsor

AI-Summary

What this Trial Is About

Researchers are evaluating a stem cell transplantation therapy called HUNS001-01 for patients who have had an ischemic stroke in the chronic phase, resulting in moderate to severe neurological disability. This phase 2a clinical trial aims to determine if injecting the patient's own mesenchymal stem cells into the brain can improve disability scores and be safely performed without adverse events over a one-year period. The study focuses on adults aged 20 to 70 years who experienced stroke between 6 months and 5 years prior and have specific neurological impairments. Participants will undergo screening including interviews, blood tests, and imaging to confirm eligibility. Eligible patients will have platelet concentrate and bone marrow harvested, followed by intracerebral transplantation surgery where 40 million autologous stem cells are injected into two brain sites. After surgery, participants will receive rehabilitation and be monitored closely. Follow-up will continue for up to one year or until the trial ends. Throughout the study, participants will undergo regular assessments including neurological evaluations and imaging to track changes and measure the effectiveness of the stem cell treatment. Researchers will monitor safety and neurological recovery using disability scales over the one-year period. The trial includes ongoing observation to detect any side effects and ensure participant well-being during and after the intervention.

CONDITIONS

Official Title

Intracerebral Autologous Stem Cell Therapy for Chronic Stroke Patients

Who Can Participate

Age: 20Years - 70Years
All Genders

Eligibility Criteria

Eligible

You may qualify if you...

  • Age between 20 and 70 years
  • Clinical diagnosis of ischemic stroke between 6 months and 5 years ago
  • Ischemic area in the territory of unilateral internal cerebral artery
  • Moderate to severe neurological symptoms; mRS 3 or 4, and Brunnstrom stage II or IV
  • Subjects with a DTI-RAINBOW (R-DTI) value of more than 70% at screening MR imaging
  • No significant neurological impairment before the stroke (Pre-stroke mRS of 0 or 1)
  • Subjects who can give informed consent by themselves
Not Eligible

You will not qualify if you...

  • Severe lower extremity contracture (Maximum knee extension less than -15 degrees, Maximum ankle flexion less than 0 degree)
  • Anaemia (Hemoglobin less than 10.0 g/dL)
  • Thrombocytopaenia (platelet count less than 100,000/mm3)
  • Severe heart disease (ischemic heart disease, heart failure)
  • Severe systemic organ failure: ALT less than 3.7 times upper limit of normal, Total bilirubin less than 1.75 times upper limit of normal, Serum creatinine less than 1.75 times upper limit of normal
  • History of malignancy
  • Carriers of infectious diseases: syphilis, HBV, HCV, HIV-1/HIV-2, HTLV-1, parvovirus B19
  • Pregnant or lactating or expecting to become pregnant during the study
  • Known serious allergy to any agents used in the study
  • Contraindication for magnetic resonance imaging
  • History of seizure within 2 years
  • Body weight less than 45 kg for males and less than 40 kg for females
  • Participating in another clinical trial within 90 days, or planning to participate in another clinical trial in the future
  • Any condition that in the judgement of the investigator would place the patient at undue risk

AI-Screening

AI-Powered Screening

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Trial Site Locations

Total: 1 location

1

Hokkaido University Hospital

Sapporo, Hokkaido, Japan, 0608638

Actively Recruiting

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Research Team

K

Kota Kurisu, M.D., Ph.D.

How is the study designed?

Study Type

INTERVENTIONAL

Masking

NONE

Allocation

NA

Model

SINGLE_GROUP

Primary Purpose

TREATMENT

Number of Arms

1

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