ClinicalTrials.gg
RecruitingNCT07896941Updated Oct 28, 2026

Safety and Efficacy of CG-BM1 in Ischemic Stroke

A Phase 1/2 interventional study of single infusion, 1.0 × 10^6 cells/kg and single infusion, 2.0 × 10^6 cells/kg in Ischemic Stroke or High-risk TIA (ABCD² ≥ 4), sponsored by GuangZhou Cellgenes Biotechnology Co., Ltd.. Recruiting at 1 site in China. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-10-28.

Sponsored by GuangZhou Cellgenes Biotechnology Co., Ltd. · Phase 1/2, Interventional, and Treatment

From the registry’s dates

  • Registered 2 years after the study started (first participant enrolled Sep 2024, registered Oct 2026).
  • Started Sep 2024; still recruiting 2 years 1 month later.
Updated Oct 28, 2026Interventions changedNewly registeredGo to Updates ↓
Phase
Phase 1/2
Study type
Interventional
Enrollment
87
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

  1. To evaluate the safety and tolerability of CG-BM1 for the treatment of patients with Ischemic Stroke.
  2. To observe the preliminary effectiveness of CG-BM1 in treating Ischemic Stroke patients.
02

Conditions studied

  • Ischemic Stroke or High-risk TIA (ABCD² ≥ 4)

Browse trials for

03

In context

Ischemic Stroke

2,612 studies on the registry are indexed under Ischemic Stroke; 971 are open to participants now.

This study's planned enrollment of 87 is below the median of 120 across 1,776 interventional studies indexed under Ischemic Stroke.

Browse Ischemic Stroke studies →

Lead sponsor

GuangZhou Cellgenes Biotechnology Co., Ltd. is the lead sponsor of 4 studies on the registry; 2 are open to participants now.

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

04

Who can participate

Ages eligible
18 Years and older
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

  • Age ≥18 years; male or female.
  • 3 to 60 months after onset of ischemic stroke.
  • Screening imaging shows ischemic stroke consistent with anterior circulation infarction, with no new infarct lesions.
  • Currently receiving standard medical therapy for secondary prevention of stroke.
  • Modified Rankin Scale (mRS) score 3-4.
  • National Institutes of Health Stroke Scale (NIHSS) score 6-20, with item 1a \<2.
  • Willing to participate in the clinical trial; the participant or legal guardian signs the form and is willing to comply with all study procedures.

Exclusion criteria

Exclusion Criteria:

  • History of cerebral hemorrhage, subarachnoid hemorrhage, or hemorrhagic transformation.
  • Previous stroke was of cardioembolic type.
  • Presence of pressure ulcers at screening.
  • History of epilepsy at any time or at screening, or current use of antiepileptic drugs.
  • History or presence at screening of other neurological, psychiatric, joint, or muscle diseases that affect compliance or assessment.
  • within the past 5 years or at screening (except any cured malignancy with no evidence of tumor recurrence).
  • Pulmonary hypertension (World Health Organization [WHO] functional class III or IV) at screening.
  • History of myocardial infarction within 6 months.
  • Uncontrolled systemic diseases, including but not limited to: hypertension (systolic blood pressure ≥160 mmHg and/or diastolic blood pressure ≥100 mmHg); diabetes mellitus (acute diabetic complications within 3 months, such as ketoacidosis, hyperglycemic hyperosmolar state, lactic acidosis, or hypoglycemic coma, or >8.5%); renal disease ( \<30 mL/min); hepatic failure ( class C); severe heart failure ( [NYHA] class IV); severe chronic respiratory disease.
  • Deep vein thrombosis at screening or history of pulmonary embolism within 3 months before screening.
  • Positive (HIV) test or diagnosis of syphilis at screening; immunodeficiency disease; or long-term or short-term high-dose or systemic therapy before screening.
  • Abnormal laboratory findings at screening as follows: \<90 g/L, \<2.0×10\^9/L, count \<100×10\^9/L, absolute lymphocyte count \<0.8×10\^9/L.
  • High risk of stroke recurrence as assessed by the investigator, or Essen Stroke Risk Score ≥5.
  • Expected survival \<12 months.
  • Pregnant or breastfeeding; unwilling to use reliable during the study (e.g., condoms); planning to donate sperm or oocytes; or planning to conceive.
  • Participation in another interventional clinical trial within 3 months or 5 half-lives (for drug interventions only, whichever is longer) before infusion.
  • Participation in a stem cell clinical trial within 2 years.
  • Known allergy to any known component of the study drug.
  • History of drug abuse or alcoholism within the past year.
  • to MRI or inability to cooperate with MRI examination (e.g., cardiac pacemaker, claustrophobia).
  • Any other factor that, in the investigator's judgment, makes the participant unsuitable for this study.
Terms in these criteria, in plain language(15)

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.

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.

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.

GFR and eGFR (kidney filtering)

GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².

Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.

Child-Pugh class

A score of how well the liver works in people with liver disease such as cirrhosis: class A is mild, B moderate and C severe.

NYHA class (heart failure)

The New York Heart Association’s four classes of how much heart failure limits physical activity.

I
No limits: ordinary activity causes no undue tiredness or breathlessness.
II
Slight limits: comfortable at rest, ordinary activity causes symptoms.
III
Marked limits: comfortable at rest, less than ordinary activity causes symptoms.
IV
Symptoms even at rest; any activity makes them worse.

Studies set their own limit — many outside heart failure leave out class III–IV, while heart failure studies may ask for a particular class. Check the class this study names.

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.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

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).

Absolute neutrophil count (ANC)

The number of neutrophils, white blood cells that help fight infection, in a given amount of blood. Too few raises the risk of infection.

It is a count, not a percentage of the white cells. Limits are written in units that mean the same: ≥ 1.5 × 10⁹/L is ≥ 1,500 per mm³ (µL). Each lab has its own reference range.

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.

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.

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.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

05

Study design

Phase
Phase 1 / Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Single group
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
87 participants (estimated)

Study arms

  • Experimental
    Single administration-CG-BM1- 1.0 × 10^6 cells/kg

    Administration procedure of CG-BM1: 1.0 × 10\^6 cells/kg as a single administration.Conventional treatment includes, but is not limited to: rehabilitation therapies, such as exercise therapy, speech therapy, cognitive therapy, electrical muscle stimulation, and swallowing therapy; antihypertensive, lipid-lowering, and anticoagulant therapies; management of complications and comorbidities; nutritional support; and other comprehensive treatments.

    Biological: single infusion, 1.0 × 10^6 cells/kg

  • Experimental
    Single administration-CG-BM1- 2.0 × 10^6cells/kg

    Administration procedure of CG-BM1: 2.0 × 10\^6 cells/kg as a single administration.Conventional treatment includes, but is not limited to: rehabilitation therapies, such as exercise therapy, speech therapy, cognitive therapy, electrical muscle stimulation, and swallowing therapy; antihypertensive, lipid-lowering, and anticoagulant therapies; management of complications and comorbidities; nutritional support; and other comprehensive treatments.

    Biological: single infusion, 2.0 × 10^6 cells/kg

  • Experimental
    Single administration-CG-BM1- 3.0 × 10^6cells/kg

    Administration procedure of CG-BM1: 3.0 × 10\^6 cells/kg as a single administration.Conventional treatment includes, but is not limited to: rehabilitation therapies, such as exercise therapy, speech therapy, cognitive therapy, electrical muscle stimulation, and swallowing therapy; antihypertensive, lipid-lowering, and anticoagulant therapies; management of complications and comorbidities; nutritional support; and other comprehensive treatments.

    Biological: single infusion, 3.0 × 10^6 cells/kg

  • Experimental
    Multiple administrations-CG-BM1- 1.0 × 10^6 cells/kg

    Administration procedure of CG-BM1: 1.0 × 10\^6 cells/kg once every two weeks for a total of 3 doses.Conventional treatment includes, but is not limited to: rehabilitation therapies, such as exercise therapy, speech therapy, cognitive therapy, electrical muscle stimulation, and swallowing therapy; antihypertensive, lipid-lowering, and anticoagulant therapies; management of complications and comorbidities; nutritional support; and other comprehensive treatments.

    Biological: 1.0 × 10^6 cells/kg once every two weeks for a total of 3 doses

  • Experimental
    Multiple administrations-CG-BM1- 2.0 × 10^6cells/kg

    Administration procedure of CG-BM1: 2.0 × 10\^6 cells/kg once every two weeks for a total of 3 doses.Conventional treatment includes, but is not limited to: rehabilitation therapies, such as exercise therapy, speech therapy, cognitive therapy, electrical muscle stimulation, and swallowing therapy; antihypertensive, lipid-lowering, and anticoagulant therapies; management of complications and comorbidities; nutritional support; and other comprehensive treatments.

    Biological: 2.0 × 10^6 cells/kg once every two weeks for a total of 3 doses

  • Experimental
    Multiple administrations-CG-BM1- 3.0 × 10^6cells/kg

    Administration procedure of CG-BM1: 3.0 × 10\^6 cells/kg once every two weeks for a total of 3 doses.Conventional treatment includes, but is not limited to: rehabilitation therapies, such as exercise therapy, speech therapy, cognitive therapy, electrical muscle stimulation, and swallowing therapy; antihypertensive, lipid-lowering, and anticoagulant therapies; management of complications and comorbidities; nutritional support; and other comprehensive treatments.

    Biological: 3.0 × 10^6 cells/kg once every two weeks for a total of 3 doses

  • Placebo comparator
    Placebo

    Placebo is administered as an intravenous infusion once every two weeks for a total of 3 doses.Conventional treatment includes, but is not limited to: rehabilitation therapies, such as exercise therapy, speech therapy, cognitive therapy, electrical muscle stimulation, and swallowing therapy; antihypertensive, lipid-lowering, and anticoagulant therapies; management of complications and comorbidities; nutritional support; and other comprehensive treatments.

    Biological: Placebo, once every two weeks for a total of 3 doses.

Interventions

  • Biologicalsingle infusion, 1.0 × 10^6 cells/kg

    CG-BM1

  • Biologicalsingle infusion, 2.0 × 10^6 cells/kg

    CG-BM1

  • Biologicalsingle infusion, 3.0 × 10^6 cells/kg

    CG-BM1

  • Biological1.0 × 10^6 cells/kg once every two weeks for a total of 3 doses

    CG-BM1

  • Biological2.0 × 10^6 cells/kg once every two weeks for a total of 3 doses

    CG-BM1

  • Biological3.0 × 10^6 cells/kg once every two weeks for a total of 3 doses

    CG-BM1

  • BiologicalPlacebo, once every two weeks for a total of 3 doses.

    Placebo

06

What researchers measure

Primary outcomes

  1. Incidence of DLT

    Time frame: Single administration: 21 days after dosing Multiple administration: 14 days after the last dose

  2. Incidence of CG-BM1-related AEs and SAEs

    Time frame: 12 mouths after the last dose

07

Study locations

1 of 1 sites recruiting
08

Timeline

2 registry updates since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Sep 2024 (actual). Primary completion is estimated for Dec 2028, 51 months after the start.

Of 27 phase 1/2 interventional studies under Ischemic Stroke, half reached primary completion within 30 months of starting (the median), counting those still running; a quarter within 20 and three quarters within 76. This study's planned 51 months is above that.

How these figures are worked out, and which studies are left out of them.

Registered
Oct 20, 2026
First posted
Oct 27, 2026
StartActual
Sep 30, 2024
Primary completionEst.
Dec 30, 2028
CompletionEst.
Dec 30, 2029
Last update
Oct 28, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
Interventions
Added Biological: single infusion, 1.0 × 10^6 cells/kg·Biological: single infusion, 2.0 × 10^6 cells/kg·Biological: single infusion, 3.0 × 10^6 cells/kg·Biological: 1.0 × 10^6 cells/kg once every two weeks for a total of 3 doses·Biological: 2.0 × 10^6 cells/kg once every two weeks for a total of 3 doses·and 2 more
All 7

Biological: single infusion, 1.0 × 10^6 cells/kg · Biological: single infusion, 2.0 × 10^6 cells/kg · Biological: single infusion, 3.0 × 10^6 cells/kg · Biological: 1.0 × 10^6 cells/kg once every two weeks for a total of 3 doses · Biological: 2.0 × 10^6 cells/kg once every two weeks for a total of 3 doses · Biological: 3.0 × 10^6 cells/kg once every two weeks for a total of 3 doses · Biological: Placebo, once every two weeks for a total of 3 doses.

; removed Biological: CG-BM1
Oct 28, 2026
Registered
First appeared on the registry
Oct 27, 2026
Show all 2 updates
  1. Oct 28, 2026
    Interventions Added Biological: single infusion, 1.0 × 10^6 cells/kg·Biological: single infusion, 2.0 × 10^6 cells/kg·Biological: single infusion, 3.0 × 10^6 cells/kg·Biological: 1.0 × 10^6 cells/kg once every two weeks for a total of 3 doses·Biological: 2.0 × 10^6 cells/kg once every two weeks for a total of 3 doses·and 2 more
    All 7

    Biological: single infusion, 1.0 × 10^6 cells/kg · Biological: single infusion, 2.0 × 10^6 cells/kg · Biological: single infusion, 3.0 × 10^6 cells/kg · Biological: 1.0 × 10^6 cells/kg once every two weeks for a total of 3 doses · Biological: 2.0 × 10^6 cells/kg once every two weeks for a total of 3 doses · Biological: 3.0 × 10^6 cells/kg once every two weeks for a total of 3 doses · Biological: Placebo, once every two weeks for a total of 3 doses.

    ; removed Biological: CG-BM1
  2. Oct 27, 2026
    First appeared on the registry

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

09

Registry details

Key details

Study ID
NCT07896941
Lead sponsor
GuangZhou Cellgenes Biotechnology Co., Ltd.
Responsible party
Sponsor
First posted
Oct 27, 2026
Start date
Sep 30, 2024
Primary completion
Dec 30, 2028 (estimated)
Completion
Dec 30, 2029 (estimated)
Last update
Oct 28, 2026

Study contacts

Zeng Liping, Senior Medical Director
Contact
Ip.zeng@cellgenes.com
+86 20 82514048

Oversight

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

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