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Intracerebral Transplantation of Autologous MSC Combined With Scaffold Product for Chronic Intracerebral Hemorrhage

Phase I/II Trial of Intracerebral Transplantation of Autologous Bone Marrow Stromal Cells Combined With Recombinant Peptide Scaffold for Patients With Chronic Intracerebral Hemorrhage

Status
Recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06361433
Acronym
RAINBOW-Hx
Enrollment
8
Registered
2024-04-11
Start date
2023-12-01
Completion date
2026-02-28
Last updated
2024-04-11

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Intracerebral Hemorrhage

Keywords

Mesenchymal stromal cell, scaffold, chronic, intracerebral hemorrhage, intraparenchymal transplantation

Brief summary

The goal of this clinical trial is to test intracerebral transplantation of stem cell product in patient with chronic intracerebral hemorrhage. The main questions aims to answer are: * The safety of the product * The efficacy of the product

Detailed description

Introduction: Intracerebral hemorrhage stands as a leading global cause of death and disability, posing a significant challenge with limited treatment options, especially for chronic patients. Recent advances of stem cell therapies have opened new avenues for therapeutic potential. The investigators' previous preclinical research has demonstrated that intracerebral transplantation of bone marrow stromal cells (BMSCs) combined with a recombinant human collagen type I scaffold enables higher cell survival and engraftment, holds promising potential. The investigators present the protocol for a novel clinical trial, named Research on Advanced Intervention using Novel Bone Marrow Stem Cells for Chronic Intracerebral Hemorrhage (RAINBOW-Hx). Methods and Analysis: RAINBOW-Hx is a phase I/II, open-label, uncontrolled study with the primary objective of assessing the safety and efficacy of intracerebral transplantation of autologous BMSCs combined with the scaffold (HUFF-01) in patients with chronic intracerebral hemorrhage. Eight patients, experiencing moderate to severe neurological deficits for 12 months or longer, will be enrolled. The hemorrhage location will be limited to the basal ganglia and thalamus. Approximately 50 mL of bone marrow will be extracted from the iliac bone of each patient, and BMSCs will be cultured using autologous platelet lysate. Three days before transplantation, BMSCs will be combined with the scaffold to generate HUFF-01. Each patient will receive a 50,000 HUFF-01 dose, containing approximately 50 million BMSCs, through stereotactic transplantation into the hemorrhagic cavity. Neurological assessments, magnetic resonance imaging, 18F-fluorodeoxyglucose positron emission tomography, and 123I-Iomazenil single-photon emission computed tomography will be performed for one year after administration.

Interventions

DRUGHUFF-01

autologous MSC combined with scaffold

Sponsors

Japan Agency for Medical Research and Development
CollaboratorOTHER_GOV
Hokkaido University Hospital
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
20 Years to 70 Years
Healthy volunteers
No

Inclusion criteria

* 1\. Age between 20 and 70 years * 2\. Clinical diagnosis of intracerebral hemorrhage 12 month or more from onset * 3\. Hemorrhagic location of unilateral basal ganglia or thalamus * 4\. Moderate to severe neurological symptoms; mRS 3 or 4, and Brunnstrom stage Ⅲ or IV * 5\. No significant neurological impairment before hemorrhage (Pre-hemorrhagic mRS of 0 or 1) * 6\. Subjects who can give informed consent by its self

Exclusion criteria

* 1\. Severe microbleeds found by T2\* * 2\. Hemorrhagic cavity less than 2 mL * 3\. The hemorrhage is due to arteriovenous malformation, cerebral aneurysm, and Moyamoya disease * 4\. Subject showing obvious communication between the hemorrhagic cavity and lateral ventricle on MRI * 5\. Subject showing severe lower extremity contracture (Maximum knee extension less than -15 degrees, Maximum ankle flexion less than 0 degree) * 6\. Subject's body weight less than 45 kg for male and 40kg for female * 7\. Anaemia (Hg \< 10·0 g/dL) * 8\. Thrombocytopaenia (platelet count \< 100,000/mm3) * 9\. Severe heart disease (ischaemic heart disease, heart failure) * 10\. Uncontrolled hypertension, despite antihypertensive therapy * 11\. Carriers of infectious disease: syphilis, HBV, HCV, HIV-1/HIV-2, HTLV-1, parvovirus B19 * 12\. Pregnant or lactating or expecting to become pregnant during the study * 13\. History of malignancy * 14\. 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 * 15\. Known serious allergy to any agents used in the study * 16\. Contraindication for magnetic resonance imaging * 17\. Any condition that in the judgement of the investigator would place the patient at undue risk

Design outcomes

Primary

MeasureTime frameDescription
Number of participants with treatment-related adverse events as assessed by CTCAE v5.0one yearListing unexpected CTCAE grade changes in physiological (physical examination/blood test) and Radiographical (MRI/CT) examination

Secondary

MeasureTime frameDescription
Change in NIHSS examinationOne yearMean improvement of NIHSS (0-42, higher score means worse outcome)
Change in FIM examinationOne yearMean improvement of FIM (18-126, higher score means better outcome)
Change in Fugl-Myer examinationOne yearMean improvement of Fugl-Myer (0-226, higher score means better outcome)
Change in mRS examinationOne yearPercentage of the patients number who showed improvement of mRS (0-6, higher score means worse outcome) of more than 1 point
Change in FDG-PET examinationOne yearMean improvement of FDG-PET set for ipsilateral motor cortex
Change in IMZ-SPECT examinationOne yearMean improvement of IMZ-SPECT set for ipsilateral motor cortex
Change in Barthal index examinationOne yearMean improvement of Barthal index (0-100, higher score means better outcome)

Countries

Japan

Contacts

Primary ContactMasahito Kawabori, MD, PHD
masahitokawabori@yahoo.co.jp+81117065987

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026