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Updated May 2026 · ClinicalTrials.gov

RECRUITINGPhase 2INTERVENTIONAL

Intracerebral Autologous Stem Cell Therapy for Chronic Stroke Patients

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

Intracerebral Autologous Stem Cell Therapy for Chronic Stroke Patients (NCT06752720) is a Phase 2 interventional studying Stroke and Stroke, Ischemic, sponsored by Hokkaido University Hospital. RECRUITING as of the most recent ClinicalTrials.gov update. Talk to your doctor before contacting the trial site.

Important: This information is not medical advice. Talk to your doctor about whether a clinical trial is right for you.

About This Trial

The goal of this clinical trial is to evaluate if autologous mesenchymal stem cell (HUNS001-01) transplantation therapy can provide neurological recovery in patients with chronic stage of stroke resulting in moderate to severe neurological sequelae. The main questions it aims to answer are: Can HUNS001-01 intracerebral transplantation demonstrate improvement in the mRS of disability for 1 year after intervention? Can HUNS001-01 intracerebral transplantation can be performed without any adverse events for 1 year after intervention? Participants will receive the below interventions. * Screening for the eligibility to enroll the clinical trial (interview, blood test, imaging) * Harvest of platelet concentrates (PC) * Harvest of bone marrows (BM) * Receive intracerebral transplantation surgery of HUNS001-01 * Post-operative rehabilitation * Follow-up studies (until 1 year or termination of the trial)

What Stage of Research Is This?

Phase 2 trials evaluate whether a treatment actually works against Stroke and continue monitoring side effects. Phase 2 enrolls larger groups (typically 100–300 patients) and produces the first real efficacy signal. A successful Phase 2 readout is what unlocks the much larger Phase 3 confirmatory trials needed for FDA approval.

This trial is currently recruiting participants. The sponsor has registered the study with ClinicalTrials.gov as actively enrolling, which means new applicants who meet the eligibility criteria can be considered for screening. Trial status can change between updates — confirm current recruiting status with the study contact before traveling for a screening visit.

With a target enrollment of 8 participants, this is a small study — typical of early-phase research, rare-disease trials, or pilot studies designed to generate preliminary signal before a larger study is launched.

Who May Be Eligible (Plain English)

Inclusion criteria 1. Age between 20 and 70 years 2. Clinical diagnosis of ischemic stroke between 6 months and 5 years ago 3. Ischemic area in the territory of unilateral interanal cerebral artery 4. Moderate to severe neurological symptoms; mRS 3 or 4, and Brunnstrom stage Ⅲ or IV 5. Subjects with a DTI-RAINBOW (R-DTI) value of more than 70% at screening MR imaging 6. No significant neurological impairment before the stroke (Pre-stroke mRS of 0 or 1) 7. Subjects who can give willing to sign a consent form by its self Exclusion criteria 1. Subject showing severe lower extremity contracture (Maximum knee extension less than -15 degrees, Maximum ankle flexion less than 0 degree)" 2. Anaemia (Hg \< 10·0 g/dL) 3. Thrombocytopaenia (platelet count \< 100,000/mm3) 4. Severe heart disease (ischaemic heart disease, heart failure) 5. Severe Systemic organ failure ALT \<3·0× upper limit of normal Total bilirubin \< 1·5× upper limit of normal Serum creatinine \< 1·5× upper limit of normal 6. History of malignancy 7. Carriers of infectious disease: syphilis, HBV, HCV, HIV-1/HIV-2, HTLV-1, parvovirus B19 8. Pregnant or lactating or expecting to become pregnant during the study 9. Known serious allergy to any agents used in the study 10. Contraindication for magnetic resonance imaging 11. History of seizure within 2 years 12. Subject's body weight less than 45 kg for male and 40kg for female "13. Participating in another clinical trial within 90 days, or planning to participate in another clinical trial in the future" 14\. Any condition that in the judgement of the investigator would place the patient at undue risk Always talk to your doctor about whether this trial is right for you.

These are translations of the protocol\'s inclusion and exclusion criteria, simplified for patients and caregivers. The original clinical text appears below. Eligibility is ultimately confirmed by the trial site\'s screening process — this summary is a starting point for a conversation with your doctor, not a final determination.

Original Eligibility Criteria

View original clinical language
Inclusion criteria 1. Age between 20 and 70 years 2. Clinical diagnosis of ischemic stroke between 6 months and 5 years ago 3. Ischemic area in the territory of unilateral interanal cerebral artery 4. Moderate to severe neurological symptoms; mRS 3 or 4, and Brunnstrom stage Ⅲ or IV 5. Subjects with a DTI-RAINBOW (R-DTI) value of more than 70% at screening MR imaging 6. No significant neurological impairment before the stroke (Pre-stroke mRS of 0 or 1) 7. Subjects who can give informed consent by its self Exclusion criteria 1. Subject showing severe lower extremity contracture (Maximum knee extension less than -15 degrees, Maximum ankle flexion less than 0 degree)" 2. Anaemia (Hg \< 10·0 g/dL) 3. Thrombocytopaenia (platelet count \< 100,000/mm3) 4. Severe heart disease (ischaemic heart disease, heart failure) 5. Severe Systemic organ failure ALT \<3·0× upper limit of normal Total bilirubin \< 1·5× upper limit of normal Serum creatinine \< 1·5× upper limit of normal 6. History of malignancy 7. Carriers of infectious disease: syphilis, HBV, HCV, HIV-1/HIV-2, HTLV-1, parvovirus B19 8. Pregnant or lactating or expecting to become pregnant during the study 9. Known serious allergy to any agents used in the study 10. Contraindication for magnetic resonance imaging 11. History of seizure within 2 years 12. Subject's body weight less than 45 kg for male and 40kg for female "13. Participating in another clinical trial within 90 days, or planning to participate in another clinical trial in the future" 14\. Any condition that in the judgement of the investigator would place the patient at undue risk

Treatments Being Tested

DRUG

Stem cell Transplantation

Manufactured autologous mescenchymal stem cell (HUNS001-01) in our cell processing center will be injected into the brain, totally 4 x 10\^7 cells, in 2 brain sites.

Locations (1)

Trial sites listed on ClinicalTrials.gov for this study. Site activation status can vary — confirm with the specific site before traveling for a screening visit.

Hokkaido University Hospital
Sapporo, Hokkaido, Japan

How to Talk to Your Doctor About This Trial

Bring the printable summary of this trial — including the NCT ID (NCT06752720), the sponsor (Hokkaido University Hospital), and the key eligibility criteria — to your next appointment. Your doctor can review the inclusion and exclusion criteria against your medical history, lab values, and current treatments to assess whether you are likely to qualify. They can also help you weigh whether trial participation makes sense alongside your existing care plan.

Useful questions to walk through together: What does the trial protocol require beyond standard care? How long is the active treatment phase, and how long is follow-up? Are there study visits at sites I can reach? Who pays for the trial-specific procedures, and who pays for standard-of-care portions? See our 25 questions to ask about clinical trials guide for a more complete checklist.

Authoritative Sources

The official record for this trial lives on ClinicalTrials.gov — the federal registry maintained by the National Library of Medicine at NIH. For background on how this trial fits into the FDA approval pathway, see the FDA drug approval process. For oncology-specific guidance for patients considering trials, the National Cancer Institute publishes patient-oriented overviews. International trial registries are aggregated by the WHO ICTRP.

Frequently Asked Questions

What is the NCT06752720 clinical trial studying?

The goal of this clinical trial is to evaluate if autologous mesenchymal stem cell (HUNS001-01) transplantation therapy can provide neurological recovery in patients with chronic stage of stroke resulting in moderate to severe neurological sequelae. The main questions it aims to answer are: Can HUNS001-01 intracerebral transplantation demonstrate improvement in the mRS of disability for 1 year after intervention? Can HUNS001-01 intracerebral transplantation can be performed without any adverse events for 1 year after intervention? Participants will receive the below interventions. * Screeni… The full protocol is registered on ClinicalTrials.gov and includes the primary outcome measures, eligibility criteria, and study endpoints.

Who can participate in NCT06752720?

Eligibility for this trial depends on the specific inclusion and exclusion criteria set by the sponsor. The plain-English summary above translates the most important criteria into accessible language; the official clinical text is preserved in the collapsible section underneath. Whether you fit any specific trial is a medical decision your doctor needs to confirm — bring the trial information to your treating physician for a full review against your medical history.

How do I contact the trial site for NCT06752720?

Contact information registered with ClinicalTrials.gov is shown in the sidebar of this page. Before reaching out, confirm with your treating physician that this trial is appropriate for your situation. The trial site will then walk you through the screening process to determine final eligibility.

Is participating in a clinical trial safe?

Clinical trials in the United States are regulated by the FDA and overseen by Institutional Review Boards (IRBs) that review the protocol for safety. Risk varies by trial — Phase 1 studies test new treatments in humans for the first time, while Phase 3 trials use treatments that have already passed earlier safety screening. The informed consent document for any specific trial details the known risks and what to expect. Discuss those risks with your physician before deciding whether to participate.

Where can I verify the data on this page?

Every detail on this page comes directly from the ClinicalTrials.gov API. Click "View on ClinicalTrials.gov" in the sidebar to see the official, unmodified record. The federal record is always authoritative; this page is a structured presentation with a plain-English eligibility translation. For background on how clinical trials are regulated, see the FDA drug approval process documentation.

How This Page Is Built

Every field on this page is pulled directly from the ClinicalTrials.gov API v2 — no estimates, no proxies. The plain-English eligibility translation is generated from the original protocol text and reviewed for fidelity to the underlying clinical criteria. The original clinical text remains visible in the collapsible section above so users and clinicians can verify the translation. Read the full methodology for the data pipeline and known limitations.

Source: ClinicalTrials.gov API v2 record for NCT06752720. Maintained by the National Library of Medicine at NIH. Public domain. Cite as: "TrialFinderData. NCT06752720. Data: ClinicalTrials.gov."

Medical disclaimer: This page is informational, not medical advice. Talk to your doctor about whether a clinical trial is right for you.

Last updated 2026-05-08 · Data from ClinicalTrials.gov.