Stem Cell Infusion in the Treatment of Patients With Neurological Complications After Ischemic Stroke

Ischemic Stroke Clinical Trial

Official title:

Outcomes of Umbilical Cord Blood-derived Mesenchymal Stem Cell Infusion in Patients With Neurological Complications After Ischemic Stroke

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT05292625
• Other study ID #: VinmecISC1809
• Status: Completed
• Phase: Phase 1/Phase 2
• Start date: July 7, 2020
• Est. completion date: November 30, 2023

Study information

• Verified date: June 2024
• Source: Vinmec Research Institute of Stem Cell and Gene Technology
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

This trial is to investigate the safety and potential therapeutic efficacy of allogeneic administration of umbilical cord-derived MSCs (UC-MSCs) in combination with standard neurological complications after ischemic stroke treatment in Vietnam.

Description:

Stroke is the second leading cause of death behind ischemic heart disease worldwide. Traditional treatments have some limitations whereas preclinical data suggest that stem cell therapy is a promising regenerative medical treatment given the limited capacity of the central nervous system for self-repairs after ischemic stroke. Previous studies have shown that umbilical cord blood-derived Mesenchymal stem cell (UC-MSC) infusion improves the outcomes of several neurological damage conditions, including stroke. These results encouraged us to initiate the phase I/II clinical trial aiming to evaluate the safety and the efficiency of UC-MSC transplantation in the treatment of patients with neurological complications after ischemic stroke. This case-control phase I/II trial is conducted at Vinmec Times City International Hospital, Hanoi, Vietnam between 2021 and 2023. In this trial, 48 patients with neurological complications after ischemic stroke will be enrolled into 3 groups: UC-MSC infusion via intravenous route group (16), UC-MSC infusion via intrathecal administration route group (16), and control group (16). The UC-MSC group (IV/intrathecal) will receive two doses of thawed UC-MSC product at 1.5x106 cells/kg patient body weight with an intervention interval of three months. The primary outcome measures will include the incidence of prespecified administration-associated adverse events (AEs) and serious adverse events (SAEs). The potential efficacy will be measured using these scales including National Institutes of Health Stroke Scale-NIHSS, Functional Independence Measure -FIM, Modified Ashworth Scale-MAS, Fine motor skills-FMS, 36-Item Short Form Survey -SF-36. The clinical evaluation will be conducted at baseline and 3-, 6- and 12-months post-intervention.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 48
• Est. completion date: November 30, 2023
• Est. primary completion date: December 30, 2022
• Accepts healthy volunteers: No
• Gender: All
• Age group: 40 Years to 75 Years

Eligibility

• Age: from 40 to 75 years.

• Gender: either sex

• Patients have been discharged/patients who are hospitalized but their general condition is stable:

• No need for vasopressor drugs

• No need for mechanical ventilation or oxygen support

• No signs of infection (fever, high WBC, high CRP/Procalcitonin)

• No kidney failure, liver failure, heart failure.

• Time from onset to study participation = 24 months

• National Institutes of Health Stroke Scale (NIHSS) score >=5

• Agree to participate in the study

Exclusion Criteria:

• Hematologic cause of stroke

• There is evidence of active infections, failure of heart, lung, liver, or kidney, respiratory distress syndrome, anemia, clotting disorder

• Cancer.

• Pregnancy.

• Tracheostomy, coma, complete quadriplegia, vegetative.

Related Conditions & MeSH terms

• Cerebral Infarction
• Ischemia
• Ischemic Stroke
• Stroke

Intervention

Biological:
• UC-MSC infusion via intravenous route
Patients assigned to UC-MSC administration groups will receive two administrations at a dose of 1.5 million cells/kg patient body weight via the intravenous (IV) route with a 3-month intervening interval
• UC-MSC infusion via intrathecal route
Patients assigned to UC-MSC administration groups will receive two administrations at a dose of 1.5 million cells/kg patient body weight via the intrathecal route with a 3-month intervening interval

Other:
• standard stroke treatment and rehabilitation therapy
Each patient can receive up to 30 days of rehabilitation therapy

Locations

Country	Name	City	State
Vietnam	Vinmec Research Institute of Stem Cell and Gene Technology	Hanoi

Sponsors (1)

Lead Sponsor	Collaborator
Vinmec Research Institute of Stem Cell and Gene Technology

Country where clinical trial is conducted

Vietnam, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Adverse events and serious adverse events	To assess safety, the number of AEs or SAEs during stem cell administration (72 h) at 3 months, 6 months and 12 months after discharge will be evaluated	up to the 12-month period following treatment
Secondary	National Institutes of Health Stroke Scale (NIHSS) score	National Institutes of Health Stroke Scale (NIHSS) scores range from 0 to 42, with higher scores indicating more severe neurological deficit	up to the 12-month period following treatment
Secondary	Functional Independence Measure (FIM) score	Functional Independence Measure (FIM) is a widely accepted functional assessment measure used during inpatient rehabilitation with the possible total score ranging from 18 (lowest) to 126 (highest) level of independence	up to the 12-month period following treatment
Secondary	Modified Ashworth Scale	The modified Ashworth scale purpose is to grade muscle spasticity. The scale is from 0 (No increase in muscle tone) to 4 (affected part(s) rigid in flexion or extension)	up to the 12-month period following treatment
Secondary	Fine motor skills (FMI) score	Fine motor skills (FMI) scores range from 0 to 58	up to the 12-month period following treatment
Secondary	Short Form 36 items (SF-36) score	Short Form 36 items (SF-36) consists of eight scaled scores, which are the weighted sums of the questions in their section. Each scale is directly transformed into a 0-100 scale on the assumption that each question carries equal weight. The lower the score the more disability	up to the 12-month period following treatment