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临床试验/NCT03629275
NCT03629275终止2 期

A Randomized, Placebo-Controlled Study of the Efficacy and Safety of Intracerebral Stem Cells (CTX0E03) in Subjects With Disability Following an Ischemic Stroke

ReNeuron Limited22 个研究点 分布在 1 个国家目标入组 15 人开始时间: 2018年8月31日最近更新:
适应症
干预措施
相关药物

试验速览

阶段
2 期
状态
终止
入组人数
15
试验地点
22
主要终点
Proportion of subjects in which Modified Rankin Scale (mRS) improves by ≥1 point at Month 6 from Baseline

研究概览

简要总结

A study of stereotactic, intracerebral injection of CTX0E03 neural stem cells into patients with moderate to moderately severe disability as a result of an ischemic stroke.

详细描述

This is a randomized, placebo-controlled, multi-center study. Patients with persistent disability 6-24 months following an ischemic stroke will be enrolled following confirmation of eligibility. Patients will be randomized 2:1 to undergo a stereotactic surgery and receive a single administration of CTX0E03 Drug Product by intracerebral implantation or undergo sham surgery only (placebo). Patients will be followed for 12 months after surgery with follow-up assessments occurring at various time points over the 12 months. All eligible patients will be assigned a standardized Physical Therapy (PT) program. Patients will complete their daily PT exercises at home for 12 weeks after their surgery.

研究设计

研究类型
Interventional
分配方式
Randomized
干预模型
Parallel
主要目的
Treatment
盲法
Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)

入排标准

年龄范围
35 Years 至 75 Years(Adult, Older Adult)
性别
All
接受健康志愿者

入选标准

  • Ischemic stroke that includes the supratentorial region as confirmed by CT or MRI, occurring within 6 to 24 months of the time that surgical intervention will be performed (Qualifying Stroke Event)
  • Modified Rankin Score of 3 or 4 due to the Qualifying Stroke Event
  • Some residual upper limb movement
  • Sufficient cognitive and language abilities to comprehend verbal commands and to carry out the study assessments
  • No medical conditions that would preclude neurosurgery with appropriate preparation and management.
  • Ability to attend study visits and complete all study assessments including ability to provide informed consent

排除标准

  • Modified Rankin Score of >1 prior to the Qualifying Stroke Event
  • Stroke due to hemorrhage or stroke known or suspected of being caused by, or related to, connective tissue disorder, congenital disorder of the cerebral vessels or a disorder of thrombosis; patients with atrial fibrillation as a suspected cause of stroke are NOT excluded
  • Neurosurgical pathway obstructed by vascular malformation or cavity
  • History of neurological or other disease resulting in significant functional impairment (e.g. Parkinson's disease, motor neuron disease, moderate dementia, arthritis, contractures or fixed anatomical abnormality)
  • Inability to stop or transition off valproic acid or other demethylating agents or Histone deacetylases (HDAC) inhibitors for 1 week before and 4 weeks after surgery
  • Use of selective serotonin reuptake inhibitors (SSRI), unless the subject is on a stable dose that has been started at least 2-months before screening (V1)
  • Use of antispasticity medications (excluding oral antispasticity medications if they have been taken regularly for at least one month prior to surgery)The use of Botox® or similar is allowed if the last dose was ≥3 months prior to screening; however, its use will be prohibited until following the 12 month visit
  • Inability to discontinue anticoagulation therapy for a required interval
  • History of malignant disease within the last 5 years, or any history of primary or secondary brain malignant disease
  • Patients who have previously participated in a cell-based therapy study at any time or in any other study involving an investigational product or rehabilitation study within the last 30 days
  • Patients with clinically significant lab values, including positive Class I human leukocyte antigen (HLA) antibodies specific for CTX0E03
  • Planned initiation of any new PT regimen within 6-months of surgery

研究组 & 干预措施

CTX0E03 Drug Product and delivery device

Experimental

20 million neural stem cells

干预措施: CTX0E03 Drug Product and delivery device (Combination Product)

Placebo

Sham Comparator

Sham Surgery

干预措施: Placebo (Drug)

结局指标

主要结局

Proportion of subjects in which Modified Rankin Scale (mRS) improves by ≥1 point at Month 6 from Baseline

时间窗: 6 months

The mRS is an ordinal scale from 0-6, where 0 represents no disability, and each grade above 0 represents a subject's increased level of disability and dependence upon others to perform daily activities.

次要结局

  • Change from baseline in a subject's executive processing speed, language skills and memory using the Symbol Digit Modalities Test.(6 months)
  • Change from baseline in a subject's executive processing speed, language skills and memory using the Multilingual Naming Test.(6 months)
  • Change from baseline in a subject's executive processing speed, language skills and memory using the Montreal Cognitive Assessment.(6 months)
  • Change from baseline in restoring a subject's motor function using the Fugl-Meyer Assessment of Motor Recovery after Stroke (FMA).(6 months)
  • Change from baseline in a subject's ability to execute activities of daily living using the Barthel Index (BI).(6 months)
  • Change from baseline in a subject's basic mobility and balance using the Timed Up and Go Test (TUG).(6 months)
  • Change from baseline in a subject's neurological deficits using the National Institute of Health Stroke Scale (NIHSS).(6 months)
  • Change from baseline in a subject's perception to stroke recovery using the Stroke Impact Scale (SIS).(6 months)
  • Change from baseline in the function of subject's paretic limb using the Chedoke Arm and Hand Activity Inventory (CAHAI).(6 months)
  • Change from baseline in a subject's executive processing speed, language skills and memory using Controlled Oral Word Association tasks.(6 months)
  • Change from baseline in subject's global rating of change regarding their limitations of activity, symptoms, and overall quality of life.(6 months)
  • Change from baseline in a subject's health-related quality of life using the EQ-5D-5L.(6 months)
  • Safety: To assess the number and severity of adverse events and medical device incidents that occur over the study period.(12 months)

研究者

申办方类型
Industry
责任方
Sponsor

研究点 (22)

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