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TerminatedNCT03629275PISCES IIIUpdated Aug 13, 2021

Investigation of Neural Stem Cells in Ischemic Stroke

A Phase 2 interventional study of CTX0E03 Drug Product and delivery device and Placebo in Ischemic Stroke, Chronic Stroke and Hemiparesis, sponsored by ReNeuron Limited. Terminated at 23 sites in United States. Open to participants aged 35 Years to 75 Years. Per ClinicalTrials.gov, last updated 2021-08-13.

Sponsored by ReNeuron Limited · Phase 2, Interventional, and Treatment

Why this study was terminated
Strategic decision to progress stroke disability programme through regional partnerships

From the registry’s dates

  • Primary completion was Sep 2020, 6 years ago, and no results have been posted to the registry.
Phase
Phase 2
Study type
Interventional
Enrollment
15
Allocation
Randomized
Ages
35 Years to 75 Years
Sex
All
01

Study summary

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.

Read the detailed description

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.

02

Conditions studied

  • Ischemic Stroke
  • Chronic Stroke
  • Hemiparesis
  • Arm Paralysis

Keywords

  • Efficacy
  • Neural Stem cells
  • Intracerebral
  • Cerebral Infarction
  • Cerebrovascular disorders
  • Brain diseases
  • Stereotactic surgery
03

In context

Stroke

7,286 studies on the registry are indexed under Stroke; 2,007 are open to participants now.

This study's enrollment of 15 is below the median of 50 across 5,369 interventional studies indexed under Stroke.

Browse Stroke studies →

Lead sponsor

ReNeuron Limited is the lead sponsor of 8 studies on the registry; 1 is open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
35 Years to 75 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • 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

Exclusion criteria

Exclusion Criteria:

  • 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
05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
15 participants (actual)

Study arms

  • Experimental
    CTX0E03 Drug Product and delivery device

    20 million neural stem cells

    Combination Product: CTX0E03 Drug Product and delivery device

  • Sham comparator
    Placebo

    Sham Surgery

    Drug: Placebo

Interventions

  • Combination productCTX0E03 Drug Product and delivery device

    Includes stereotactic surgery and a burr hole drilled through the skull to allow for a one time intracerebral injection of 20 million CTX0E03 Drug Product stem cells into an area of the brain adjacent to the area affected by the stroke.

  • DrugPlacebo

    Sham surgical comparator includes stereotactic surgery and a partial thickness burr hole drilled into the skull. No injection of any kind is made into the brain, and no other intervention is given.

06

What researchers measure

Primary outcomes

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

    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.

    Time frame: 6 months

Secondary outcomes

  1. Change from baseline in a subject's ability to execute activities of daily living using the Barthel Index (BI).

    The BI is an ordinal scale used to measure a patient's ability to perform activities of daily living. Sum scores from 10 items are calculated with total possible scores ranging from 0-100, with lower scores indicating increased disability.

    Time frame: 6 months

  2. Change from baseline in a subject's basic mobility and balance using the Timed Up and Go Test (TUG).

    TUG is a timed activity assessing mobility and balance in which subjects are asked to stand up from a chair, walk a distance of 3 meters, turn around, walk back to chair and seat themselves. Scores consist of time taken to complete the activity, in seconds.

    Time frame: 6 months

  3. Change from baseline in the function of subject's paretic limb using the Chedoke Arm and Hand Activity Inventory (CAHAI).

    The CAHAI is validated to assess paretic limb function and consists of 13 functional tasks, each scored on a 7-point scale, with total test scores obtained by summing each task score. Total scores can range from 13-91 with higher scores indicating greater ability.

    Time frame: 6 months

  4. Change from baseline in a subject's executive processing speed, language skills and memory using the Symbol Digit Modalities Test.

    Validated test assessing different aspects of cognitive function.

    Time frame: 6 months

  5. Change from baseline in a subject's executive processing speed, language skills and memory using Controlled Oral Word Association tasks.

    Validated test assessing different aspects of cognitive function.

    Time frame: 6 months

  6. Change from baseline in a subject's executive processing speed, language skills and memory using the Multilingual Naming Test.

    Validated test assessing different aspects of cognitive function.

    Time frame: 6 months

  7. Change from baseline in a subject's executive processing speed, language skills and memory using the Montreal Cognitive Assessment.

    Validated test assessing different aspects of cognitive function.

    Time frame: 6 months

  8. Change from baseline in a subject's neurological deficits using the National Institute of Health Stroke Scale (NIHSS).

    The NIHSS is comprised of 15 items used to assess severity of impairment due to stroke with each item scored on a 3 or 4 point ordinal scale in which 0 represents no impairment. Total sum score range from 0-42: higher score reflects greater severity.

    Time frame: 6 months

  9. Change from baseline in restoring a subject's motor function using the Fugl-Meyer Assessment of Motor Recovery after Stroke (FMA).

    The FMA is used to assess motor function in post-stroke, hemiplegic patients. The FMA is comprised of 5 sections, and respective items within each section are scored using a 3-point ordinal scale with 0 representing inability to perform task. Total possible score is 226.

    Time frame: 6 months

  10. Change from baseline in subject's global rating of change regarding their limitations of activity, symptoms, and overall quality of life.

    Self-administered 2 factor questionnaire assessing change in limitations of activity, symptoms, and overall quality of life.

    Time frame: 6 months

  11. Change from baseline in a subject's perception to stroke recovery using the Stroke Impact Scale (SIS).

    The SIS is a stroke-specific, comprehensive measure of health status. The SIS is comprised of 59 items with each item rated on a 5 point Likert scale in terms difficulty. A score of 1 represents an inability to complete an item, where a score of 5 represents no difficulty.

    Time frame: 6 months

  12. Change from baseline in a subject's health-related quality of life using the EQ-5D-5L.

    Subjects rate each of 5 dimensions with a numerical rating (1-5) where 1 represents no difficulty to 5 representing an inability, and where a lower total score represents better quality of life.

    Time frame: 6 months

  13. Safety: To assess the number and severity of adverse events and medical device incidents that occur over the study period.

    Time frame: 12 months

07

Study locations

23 sites
  • University of Arkansas
    Little Rock, Arkansas 72205, United States
  • University of California, Irvine
    Irvine, California 92697, United States
  • University of California, Los Angeles
    Los Angeles, California 90095, United States
  • University of Southern California Neurorestoration Center
    Los Angeles, California 90095, United States
  • Stanford University
    Palo Alto, California 94304, United States
  • University of California, San Diego
    San Diego, California 92093-0706, United States
  • University of Miami
    Coral Gables, Florida 33146, United States
  • University of South Florida
    Tampa, Florida 33606, United States
  • Emory
    Atlanta, Georgia 30322, United States
  • Augusta University
    Augusta, Georgia 30912, United States
  • Shirley Ryan Ability Lab
    Chicago, Illinois 60611, United States
  • MedStar Health Research Institute
    Hyattsville, Maryland 20782, United States
  • Henry Ford Health System
    Detroit, Michigan 48202, United States
  • Washington University School of Medicine
    Saint Louis, Missouri 63130, United States
  • JFK Neuroscience Institute
    Edison, New Jersey 08820, United States
  • Albany Medical College
    Albany, New York 12208, United States
  • Duke University School of Medicine
    Durham, North Carolina 27705, United States
  • Oregon Health and Science University
    Portland, Oregon 97239, United States
  • University of Pennsylvania
    Philadelphia, Pennsylvania 19104, United States
  • University of Pittsburgh
    Pittsburgh, Pennsylvania 15213, United States
  • Chattanooga Center for Neurologic Research
    Chattanooga, Tennessee 37403, United States
  • University of Texas Health Science Center
    Houston, Texas 77030, United States
  • University of Texas Health Science Center
    San Antonio, Texas 78229-3900, United States
08

References and documents

Publications

  • Olmsted ZT, Petersen EA, Pilitsis JG, Rahimi SY, Chen PR, Savitz SI, Laskowitz DT, Kolls BJ, Staudt MD. Toward Generalizable Trajectory Planning for Human Intracerebral Trials and Therapy. Stereotact Funct Neurosurg. 2022;100(4):214-223. doi: 10.1159/000521916. Epub 2022 Feb 7. PubMed 35130557 ↗
09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 13, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03629275
Lead sponsor
ReNeuron Limited
Responsible party
Sponsor
First posted
Aug 14, 2018
Start date
Aug 31, 2018
Primary completion
Sep 9, 2020
Completion
Mar 2, 2021
Last update
Aug 13, 2021

Study contacts

Richard Beckman, MD
study director · ReNeuron Ltd.

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

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