ClinicalTrials.gg
Status unknownNCT03296618Updated Oct 5, 2017

Intracerebral Transplantation of Neural Stem Cells for the Treatment of Ischemic Stroke

A Phase 1 interventional study of NSI-566 in Ischemic Motor Stroke, Chronic, sponsored by Suzhou Neuralstem Biopharmaceuticals. Status unknown at 1 site in China. Open to participants aged 30 Years to 65 Years. Per ClinicalTrials.gov, last updated 2017-10-05.

Sponsored by Suzhou Neuralstem Biopharmaceuticals · Phase 1, Interventional, and Treatment

The sponsor has not verified this record recently (last verified Oct 2017), so the status shown — last known as Active, not recruiting — may be out of date.
Phase
Phase 1
Study type
Interventional
Enrollment
18
Allocation
Not applicable
Ages
30 Years to 65 Years
Sex
All
01

Study summary

The study is to determine the safety of human neural stem cell transplantation for the treatment of paralysis and related symptoms due to chronic motor stroke and to determine the maximum tolerated dose.

Read the detailed description

This is a Phase I study of human neural stem cell transplantation for the treatment of chronic motor stroke. This single-site, Phase I, open-label study may enroll up to 18 patients across 5 cohorts of ascending doses of human neural stem cells to define maximal tolerated dose.

02

Conditions studied

  • Ischemic Motor Stroke, Chronic

Keywords

  • chronic stroke
  • neural stem cell
  • transplant
  • paralysis
03

In context

Bronchiolitis Obliterans Syndrome

714 studies on the registry are indexed under Bronchiolitis Obliterans Syndrome; 128 are open to participants now.

This study's planned enrollment of 18 is below the median of 50 across 565 interventional studies indexed under Bronchiolitis Obliterans Syndrome.

Browse Bronchiolitis Obliterans Syndrome studies →

Lead sponsor

This is the only study on the registry with Suzhou Neuralstem Biopharmaceuticals as lead sponsor.

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

04

Who can participate

Ages eligible
30 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Have the ability to understand the requirements of the study, provide written , understand and provide written authorization for the use and disclosure of Protected Health Information (PHI) [per Health Insurance Portability and Accountability Act (HIPAA) Privacy Ruling] and comply with the study procedures
  2. Men and women 30-65 years old
  3. Women must have a negative serum pregnancy test and practice an acceptable method of or be of non- ( for at least 2 years or who have undergone hysterectomy or oophorectomy or surgical sterilization)
  4. At least 3 months but no more than 24 months from time of stroke, with a motor neurological deficit
  5. Documented history of completed ischemic stroke in subcortical region of MCA or lenticulostriate artery with or without cortical involvement, with correlated findings by MRI
  6. Modified Rankin Score of 2, 3 or 4
  7. FMMS score of 55 or less;
  8. Two evaluations at approximately 3 weeks apart prior to surgery with less than +/- 4 point change in the NIHSS
  9. Able and willing to meet all follow-up requirements
  10. Able and willing to undergo post-physical therapy/rehabilitation

Exclusion criteria

Exclusion Criteria:

  1. Any disabling psychological or psychiatric disorders which may confound the study
  2. History of more than one symptomatic stroke, TIAs allowed
  3. History of another major neurological disease or injury
  4. Cerebral infarct size >8cm in any one measurement
  5. Myocardial infarction within the prior 3 months
  6. History of seizures or current use of antiepileptic medication
  7. Receipt of any drug or device within 30 days
  8. Receipt of any cell infusion other than blood transfusion
  9. Any concomitant medical disease or condition noted below:

    1. Coagulopathy with > 1.4 at the time of surgery
    2. Panel Reactive Antibodies (PRA) > 20% at initial screen
    3. Active infection at the time of surgery
    4. Active hypotension requiring vasopressor therapy
    5. Skin breakdown over the site of surgery
    6. Active or history of
    7. Primary or secondary immune deficiency
    8. Persistent MRI artifact that would prevent imaging pre and post-operation or unable to undergo MRI
    9. Creatinine >115μmol/L, liver function tests (/SGPT, , Alk Phos) > 2x , hematocrit/ \< 30/10, total WBC \< 4000/mm3, count \<100,000/mm3, uncontrolled hypertension (systolic > 180mmHg or diastolic> 100mmHg) or uncontrolled diabetes (defined as >8%), evidence of GI bleeding by hemoccult test,positive tuberculosis (TB test: PPD/Mantoux), or C, or (HIV)
  10. Presence of any of the following conditions:

    1. Current drug abuse or alcoholism
    2. Unstable medical conditions
    3. Unstable psychiatric illness including psychosis and untreated major depression
  11. Any condition that the Investigator or primary physician feels may interfere with participation in the study or may endanger the subject
  12. Any condition that the surgeon feels may pose complications for the surgery
  13. Known to tacrolimus or methylprednisolone
  14. Unable or unwilling to participate in physical and/or occupational therapy or return to clinic for follow up examinations as scheduled
  15. Inability to provide as determined by screening protocol.
  16. Use of antiplatelet drugs less than 2 weeks before surgery
Terms in these criteria, in plain language(16)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Postmenopausal

Periods have stopped for good: usually no period for 12 months in a row without another medical reason, sometimes confirmed by a blood test (FSH).

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

INR, PT and aPTT (clotting tests)

Blood tests of how long blood takes to clot. The INR is the prothrombin time (PT) put on a common scale; about 1 is usual for someone not taking a blood thinner.

Criteria often make an exception for people on a blood thinner such as warfarin, whose INR is raised on purpose.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

ALT and AST (liver enzymes)

Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.

Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.

Bilirubin

A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.

Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.

ULN (upper limit of normal)

The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.

“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.

Hemoglobin (Hb)

The protein in red blood cells that carries oxygen. A low level is anaemia, which can cause tiredness and breathlessness. Measured in g/dL or g/L (9 g/dL is 90 g/L).

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

HbA1c

A blood test of average blood sugar over the past two to three months, given as a percentage or in mmol/mol. 6.5% (48 mmol/mol) or more is the usual threshold for diabetes, normally confirmed by a second test.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
18 participants (estimated)

Study arms

  • Experimental
    NSI-566 neural stem cell implantation

    Drug: NSI-566

Interventions

  • DrugNSI-566

    Dosing will consist of a one-time stereotactic, intracranial injection of a hNSC line, NSI-566, ranging from 1.2×107 cells to 8×107 cells, as tolerated.

06

What researchers measure

Primary outcomes

  1. Adverse Events

    Time frame: 24 months

Secondary outcomes

  1. Clinical improvement using NIH Stroke Scale

    Time frame: 12 months

  2. Clinical improvement using Modified Rankin Scale

    Time frame: 12 months

  3. Clinical improvement using Fugl-Meyer Motor Score

    Time frame: 12 months

  4. Clinical Improvement using Mini-mental State Examination

    Time frame: 12 months

Other outcomes

  1. MRI analysis of transplant site

    Time frame: 12 months

  2. PET analysis of transplant site

    Time frame: 12 months

07

Study locations

1 site
  • Ba Yi Brain Hospital
    Beijing, China
08

References and documents

Publications

  • Glass JD, Boulis NM, Johe K, Rutkove SB, Federici T, Polak M, Kelly C, Feldman EL. Lumbar intraspinal injection of neural stem cells in patients with amyotrophic lateral sclerosis: results of a phase I trial in 12 patients. Stem Cells. 2012 Jun;30(6):1144-51. doi: 10.1002/stem.1079. PubMed 22415942 ↗
  • Boulis NM, Federici T, Glass JD, Lunn JS, Sakowski SA, Feldman EL. Translational stem cell therapy for amyotrophic lateral sclerosis. Nat Rev Neurol. 2011 Dec 13;8(3):172-6. doi: 10.1038/nrneurol.2011.191. PubMed 22158518 ↗
  • Lunn JS, Sakowski SA, Hur J, Feldman EL. Stem cell technology for neurodegenerative diseases. Ann Neurol. 2011 Sep;70(3):353-61. doi: 10.1002/ana.22487. PubMed 21905078 ↗
  • Lunn JS, Sakowski SA, Federici T, Glass JD, Boulis NM, Feldman EL. Stem cell technology for the study and treatment of motor neuron diseases. Regen Med. 2011 Mar;6(2):201-13. doi: 10.2217/rme.11.6. Erratum In: Regen Med. 2011 Jul;6(4):536. PubMed 21391854 ↗
09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Oct 5, 2017, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03296618
Lead sponsor
Suzhou Neuralstem Biopharmaceuticals
Responsible party
Sponsor
First posted
Sep 28, 2017
Start date
Jun 2012
Primary completion
May 2018 (estimated)
Completion
May 2018 (estimated)
Last update
Oct 5, 2017

Study contacts

Xu Ruxiang, M.D
principal investigator · BaYi Brain Hospital, Army General Hospital

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Oct 2017. You cannot join it, but the record below documents what was studied.

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