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Clinical Trial of Umbilical Cord Mesenchymal Stem Cells in Subacute Ischemic Stroke

A Multicenter, Double-Blind, Randomized, Placebo-Controlled, Phase II Clinical Study to Evaluate the Efficacy and Safety of IxCell hUC-MSC-S in Patients With Ischemic Stroke in the Recovery Phase

Status
Not yet recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07197606
Enrollment
86
Registered
2025-09-29
Start date
2025-10-01
Completion date
2027-12-31
Last updated
2025-09-29

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

Conditions

Ischemic Stroke

Brief summary

The goal of this clinical trial is to evaluate the efficacy, safety, and pharmacodynamic characteristics of Human Umbilical Cord Mesenchymal Stem Cells (hUC-MSCs) in adults with ischemic stroke in the anterior circulation during the recovery phase. Researchers will compare hUC-MSCs to a placebo to determine whether hUC-MSCs treatment is effective in treating recovery-phase anterior circulation ischemic stroke.

Detailed description

This study aims to further evaluate the efficacy and safety of human umbilical cord-derived mesenchymal stem cells (hUC-MSCs) in the treatment of stroke. Eligible participants will be randomized to receive either intravenous infusions of hUC-MSCs or a matching placebo. Over the 12-month study period, participants will be required to attend regular clinic visits for comprehensive neurological assessments, including the Fugl-Meyer Assessment (FMA), Modified Rankin Scale (mRS), National Institutes of Health Stroke Scale (NIHSS), Barthel Index (BI), and Mini-Mental State Examination (MMSE), as well as vascular imaging studies and biomarker analyses. Additionally, participants (or their caregivers, where applicable) will be instructed to consistently document neurological symptoms, functional activities, and the use of any rehabilitation medications or assistive devices.

Interventions

DRUGPlacebo

Intravenous injection of placebo

DRUGIxCell hUC-MSC-S (Human Umbilical Cord Mesenchymal Stem Cells)

Intravenous injection of IxCell hUC-MSC-S

Sponsors

Shanghai IxCell Biotechnology Co., LTD
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Investigator, Outcomes Assessor)

Eligibility

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

Inclusion criteria

* Age ≥18 years and ≤70 years, regardless of gender. * 14 to 90 days after ischemic stroke. * Clinical diagnosis of anterior circulation ischemic stroke. * National Institutes of Health Stroke Scale (NIHSS) score is 6-20 points (inclusive), with NIHSS motor arm (item 5) or motor leg (item 6) score of 2-4 points, and NIHSS level of consciousness item (1a) score \<2 points. * It was anticipated that participants would either be able to give informed consent or have a legal representative who could do so.

Exclusion criteria

* People who had a history of epilepsy, dementia, Parkinson's disease, severe depression, or other neurological or psychiatric disorders. * Intracranial hemorrhagic conditions. * Pre-stroke mRS score \>1. * Severe cardiovascular disease. * Severe pulmonary diseases.

Design outcomes

Primary

MeasureTime frameDescription
Fugl-Meyer Assessment motor score12 monthsThe Fugl-Meyer Assessment (FMA) is a stroke-specific, performance-based scale used to evaluate motor impairment. Its motor score, which ranges from 0 to 100, serves as a key parameter for quantifying motor recovery, where a higher score indicates better motor function.

Secondary

MeasureTime frameDescription
Modified Rankin Scale12 monthsThe Modified Rankin Scale (mRS) is designed to evaluate the degree of dependence in daily activities rather than specific impairments. The mRS is a simple ordinal scale ranging from 0 to 6, where 0 indicates no symptoms and 6 indicates death. A lower score on the scale signifies a better level of independence and a lower degree of disability.
National Institutes of Health Stroke Scale12 monthsThe National Institutes of Health Stroke Scale (NIHSS) is designed to evaluate the effects of a stroke on key functional domains such as consciousness, vision, motor strength, sensation, and language.The NIHSS score ranges from 0 to 42, with a higher score indicating more severe neurological deficits.
Barthel Index12 monthsThe Barthel Index (BI) is commonly employed to evaluate functional disability and monitor rehabilitation progress in patients with chronic conditions or following events such as stroke. The total score ranges from 0 to 100, with a higher score indicating a greater degree of functional independence.
Mini-Mental State Examination12 monthsThe Mini-Mental State Examination (MMSE) is a standardized screening tool designed to provide a quick assessment of an individual's global cognitive function.The total score ranges from 0 to 30, with a higher score indicating better cognitive performance.

Countries

China

Contacts

Primary ContactMing Xiao, PHD
xiaoming@ixcell.com.cn+86 21 68911597

Outcome results

None listed

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