Evidence map›Paper›PMID 32041820›Full record

Trial reportJournal of neurology, neurosurgery, and psychiatry2020

Intracerebral implantation of human neural stem cells and motor recovery after stroke: multicentre prospective single-arm study (PISCES-2).

Keith W Muir, Diederik Bulters, Mark Willmot, Nikola Sprigg, Anand Dixit, Nick Ward, Pippa Tyrrell, Arshad Majid, Laurence Dunn, Philip Bath and 4 more

Open access · hybridAbstract readClinical TrialMulticenter Study
In one paragraph

Trial report in Journal of neurology, neurosurgery, and psychiatry, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 96 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
96citing papers in PubMed, 2 pooled it
11.2field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

96 citing papers in PubMed, 2 syntheses or guidelines pooled it, 155 citations in OpenAlex.

  1. Safety and efficacy of bone marrow mononuclear cell therapy for ischemic stroke recovery: a systematic review and meta-analysis of randomized controlled trials.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2024
    Pooled it
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  10. OPTRACE: Optical Imaging-Guided Transplantation and Tracking of Cells in the Mouse Brain.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
    Article
  11. Review
  12. "Time Is Brain" - for Cell Therapies.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
    Review
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  14. Molecular imaging of stem cell therapies in ischemic stroke.European journal of nuclear medicine and molecular imaging · 2025
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36 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

14 authors at 9 institutions in 1 country.

Keith W MuirInstitute of Neuroscience & Psychology, University of Glasgow, Glasgow, UK Keith.Muir@glasgow.ac.uk.ORCID 0000-0001-9535-022X
Diederik BultersNeurosurgery, Wessex Neurological Centre, Southampton, Southampton, UK.
Mark WillmotNeurology, Queen Elizabeth Hospital Birmingham, Birmingham, Birmingham, UK.
Nikola SpriggStroke Trials Unit, University of Nottingham, Nottingham, UK.
Anand DixitInstitute of Neuroscience, Newcastle University, Newcastle upon Tyne, Newcastle upon Tyne, UK.
Nick WardDepartment of Clinical and Movement Neurosciences, UCL Institute of Neurology, London, UK.ORCID 0000-0002-7688-9649
Pippa TyrrellThe University of Manchester, Manchester, Manchester, UK.
Arshad MajidSheffield Institute for Translational Neuroscience (SITraN), The University of Sheffield, Sheffield, Sheffield, UK.
Laurence DunnNeurosurgery, Institute of Neurological Sciences, Glasgow, Glasgow, UK.
Philip BathStroke Trials Unit, University of Nottingham, Nottingham, UK.
Julian HowellReNeuron Ltd, Bridgend, UK.
Paul StroemerReNeuron Ltd, Bridgend, UK.
Kenneth PollockReNeuron Ltd, Bridgend, UK.
John SindenReNeuron Ltd, Bridgend, UK.
ReNeuron (United Kingdom) · GBUniversity of Nottingham · GBEssex Cardiothoracic Centre · GBNational Hospital for Neurology and Neurosurgery · GBNewcastle University · GBQueen Elizabeth Hospital Birmingham · GBUniversity of Glasgow · GBUniversity of Manchester · GBUniversity of Sheffield · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundHuman neural stem cell implantation may offer improved recovery from stroke. We investigated the feasibility of intracerebral implantation of the allogeneic human neural stem cell line CTX0E03 in the subacute-chronic recovery phase of stroke and potential measures of therapeutic response in a multicentre study.

methodsWe undertook a prospective, multicentre, single-arm, open-label study in adults aged >40 years with significant upper limb motor deficits 2-13 months after ischaemic stroke. 20 million cells were implanted by stereotaxic injection to the putamen ipsilateral to the cerebral infarct. The primary outcome was improvement by 2 or more points on the Action Research Arm Test (ARAT) subtest 2 at 3 months after implantation.

findingsTwenty-three patients underwent cell implantation at eight UK hospitals a median of 7 months after stroke. One of 23 participants improved by the prespecified ARAT subtest level at 3 months, and three participants at 6 and 12 months. Improvement in ARAT was seen only in those with residual upper limb movement at baseline. Transient procedural adverse effects were seen, but no cell-related adverse events occurred up to 12 months of follow-up. Two deaths were unrelated to trial procedures.

interpretationAdministration of human neural stem cells by intracerebral implantation is feasible in a multicentre study. Improvements in upper limb function occurred at 3, 6 and 12 months, but not in those with absent upper limb movement at baseline, suggesting a possible target population for future controlled trials.

fundingReNeuron, Innovate UK (application no 32074-222145). TRIAL REGISTRATION NUMBER: EudraCT Number: 2012-003482-18.

Indexed as

AdultAgedBrain IschemiaFemaleHumansMaleMiddle AgedNeural Stem CellsProspective StudiesRecovery of FunctionStem Cell TransplantationStrokeStroke RehabilitationTreatment OutcomeUpper Extremityhuman neural stem cellsstem cellsstroke

Identifiers

PMID32041820
PMCPMC7147186
OpenAlexW3000204021

What OpenQuestion holds

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LicenceCC BY-NC
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.