Acute Myeloid LeukemiaPhase 1/2NCT04010877
Multiple CAR-T Cell Therapy Targeting AML
A Phase 1/2 study testing CLL-1, CD33 and/or CD123-specific CAR gene-engineered T cells in people with Acute Myeloid Leukemia, run by Shenzhen Geno-Immune Medical Institute at 1 site in China.
Trial summary
The purpose of this clinical trial is to assess the feasibility, safety and efficacy of multiple CAR T-cell therapy which combines CAR T cells against CLL-1 with CAR T cells targeting CD123 or CD33 in patients with relapsed and refractory AML. Read more about this study
- Who is it for?
- Ages 6 months to 75 years
- Conditions the study is for
- Acute Myeloid Leukemia
- What is being tested?
- CLL-1, CD33 and/or CD123-specific CAR gene-engineered T cells
- Type of treatment
- Injection or infusion
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 10 participants
- Where
- 1 siteChina
- Study dates
- 1 Aug 2025to 31 Jul 2026
- Phase
- Phase 1/2
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 6 months to 75 years
- All sexes
- No healthy volunteers
- Child, Adult, Older adult
Who may be able to join
- Age older than 6 months.
- Confirmed expression of CLL-1, CD123 and/or CD33 in blast AML by immuno-histochemical staining or flow cytometry.
- Karnofsky performance status (KPS) score is higher than 80 and life expectancy > 3 months.
- Adequate bone marrow, liver and renal function as assessed by the following laboratory requirements: cardiac ejection fraction ≥ 50%, oxygen saturation ≥ 90%, creatinine ≤ 2.5 × upper limit of normal, aspartate aminotransferase (AST) and alanine aminotransferase (ALT) ≤ 3 × upper limit of normal, total bilirubin ≤ 2.0mg/dL.
- Hgb≥80g/L.
- No cell separation contraindications.
- Abilities to understand and the willingness to provide written informed consent.
Who cannot join
- Sever illness or medical condition, which would not permit the patient to be managed according to the protocol, including active uncontrolled infection.
- Active bacterial, fungal or viral infection not controlled by adequate treatment.
- Known HIV, hepatitis B virus (HBV) or hepatitis C virus (HCV) infection.
- Pregnant or nursing women may not participate.
- Use of glucocorticoid for systemic therapy within one week prior to entering the trial.
- Previous treatment with any gene therapy products.
- Patients, in the opinion of investigators, may not be able to comply with the study.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Multi-center Phase I/II Clinical Trial of Multiple CAR T Cells for Treating Acute Myeloid Leukemia
The purpose of this clinical trial is to assess the feasibility, safety and efficacy of multiple CAR T-cell therapy which combines CAR T cells against CLL-1 with CAR T cells targeting CD123 or CD33 in patients with relapsed and refractory AML. The study also aims to learn more about the function of CAR T cells and their persistency in AML patients.
Read the detailed description
Acute myeloid leukemia (AML) is a malignant disease characterized by the rapid growth of myeloblasts that grow in the bone marrow and interfere with the generation of normal blood cells.
Over the past few years, several groups have demonstrated that CD33 and CD123 CAR T cells can eradicate AML in both preclinical and clinical trials. Nevertheless, relapse after CAR T therapy remains a critical problem in treating AML. Disease relapse can be caused by antigen escape and by the outgrowth of residual leukemia stem cells (LSCs) that are not effectively eliminated by CAR T cells. CLL-1 (C-type lectin-like molecule-1) is a transmembrane glycoprotein, which is overexpressed in LSCs but absent in HSCs (hematopoietic stem cells), suggesting that CLL-1 might be a promising target for novel AML therapy. In this study, we use CLL-1 CAR-T in combination with CD123 and/or CD33 CAR-T as a new strategy to address LSC issue and prevent relapse caused by antigen escape.
The T cells from patients or transplantation donors will be genetically modified with lentiviral CAR vector to recognize specific molecules (CD33, CD123 or CLL-1) expressed on the surface of AML cells. The engineered T cells will be applied to patients through intravenous delivery.
The purpose of this clinical trial is to assess the feasibility, safety and efficacy of multiple CAR-T cell therapy in AML. Another goal of the study is to learn more about the function of CAR T cells and their persistency in the patients.
- Conditions
- Acute Myeloid Leukemia
- Being tested
- CLL-1, CD33 and/or CD123-specific CAR gene-engineered T cells
- Keywords
- AML, CAR T, CD33, CD123, CLL-1
- Medical subject headings
- Leukemia, Myeloid, Acute
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
CLL-1, CD33 and/or CD123-specific CAR gene-engineered T cellsBiological
Infusion of CLL-1, CD33 and/or CD123-specific CAR-T cells
| Study group | Role | What they receive |
|---|---|---|
| Multiple CAR T cells to treat AML | Experimental | Multiple CAR T cells to treat AML Receives: Biological: CLL-1, CD33 and/or CD123-specific CAR gene-engineered T cells |
What is being measured
The primary outcome is the main question the study is designed to answer.
Safety of infusion
Treatment-related adverse events are assessed by NCI CTCAE V4.0 criteria.
Measured: 1 year
Secondary outcomes (1)
Clinical response
Objective responses (complete response (CR) + partial response (PR)) are assessed by the Response Evaluation Criteria in Solid Tumors (RECIST) v1.1 criteria.
Measured: 1 year
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted8 Jul 2019
- Study start1 Aug 2025
- Primary completion1 Jul 2026
- Study completion31 Jul 2026
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Acute Myeloid LeukemiaStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 1/2
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 10 participants (actual)
Sponsor and investigators
- Lead sponsor
- Shenzhen Geno-Immune Medical Institute
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Lung-Ji Chang, Ph.D, Principal investigator, Shenzhen Geno-Immune Medical Institute
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04010877
- Sponsor's protocol ID
- GIMI-IRB-19004
- Status last verified
- Aug 2026
- First submitted
- 4 Jul 2019
- Last updated
- 24 Aug 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
Study at a glance
From the registry record, last updated by the sponsor on 24 Aug 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Multi-center Phase I/II Clinical Trial of Multiple CAR T Cells for Treating Acute Myeloid Leukemia
- ClinicalTrials.gov ID
- NCT04010877
- Acronym / sponsor ID
- GIMI-IRB-19004
- Conditions
- Acute Myeloid Leukemia
- Keywords
- AML, CAR T, CD33, CD123, CLL-1
- Phase
- Phase 1/2
- Study type
- Interventional
- Recruitment status
- Terminated
- Enrolment
- 10 participants (actual)
- Lead sponsor
- Shenzhen Geno-Immune Medical InstituteUniversity, hospital or other
- Study start
- 1 Aug 2025 (actual)
- Primary completion
- 1 Jul 2026 (actual)
- Study completion
- 31 Jul 2026 (actual)
- First posted
- 8 Jul 2019 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The purpose of this clinical trial is to assess the feasibility, safety and efficacy of multiple CAR T-cell therapy which combines CAR T cells against CLL-1 with CAR T cells targeting CD123 or CD33 in patients with relapsed and refractory AML. The study also aims to learn more about the function of CAR T cells and their persistency in AML patients.
Detailed description
Acute myeloid leukemia (AML) is a malignant disease characterized by the rapid growth of myeloblasts that grow in the bone marrow and interfere with the generation of normal blood cells.
Over the past few years, several groups have demonstrated that CD33 and CD123 CAR T cells can eradicate AML in both preclinical and clinical trials. Nevertheless, relapse after CAR T therapy remains a critical problem in treating AML. Disease relapse can be caused by antigen escape and by the outgrowth of residual leukemia stem cells (LSCs) that are not effectively eliminated by CAR T cells. CLL-1 (C-type lectin-like molecule-1) is a transmembrane glycoprotein, which is overexpressed in LSCs but absent in HSCs (hematopoietic stem cells), suggesting that CLL-1 might be a promising target for novel AML therapy. In this study, we use CLL-1 CAR-T in combination with CD123 and/or CD33 CAR-T as a new strategy to address LSC issue and prevent relapse caused by antigen escape.
The T cells from patients or transplantation donors will be genetically modified with lentiviral CAR vector to recognize specific molecules (CD33, CD123 or CLL-1) expressed on the surface of AML cells. The engineered T cells will be applied to patients through intravenous delivery.
The purpose of this clinical trial is to assess the feasibility, safety and efficacy of multiple CAR-T cell therapy in AML. Another goal of the study is to learn more about the function of CAR T cells and their persistency in the patients.
Study design
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Multiple CAR T cells to treat AML | Experimental | Biological: CLL-1, CD33 and/or CD123-specific CAR gene-engineered T cellsMultiple CAR T cells to treat AML |
Who may qualify
- Ages
- 6 months to 75 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult, Older adult
Key inclusion criteria (7 listed)
- Age older than 6 months.
- Confirmed expression of CLL-1, CD123 and/or CD33 in blast AML by immuno-histochemical staining or flow cytometry.
- Karnofsky performance status (KPS) score is higher than 80 and life expectancy > 3 months.
- Adequate bone marrow, liver and renal function as assessed by the following laboratory requirements: cardiac ejection fraction ≥ 50%, oxygen saturation ≥ 90%, creatinine ≤ 2.5 × upper limit of normal, aspartate aminotransferase (AST) and alanine aminotransferase (ALT) ≤ 3 × upper limit of normal, total bilirubin ≤ 2.0mg/dL.
- Hgb≥80g/L.
Key exclusion criteria (7 listed)
- Sever illness or medical condition, which would not permit the patient to be managed according to the protocol, including active uncontrolled infection.
- Active bacterial, fungal or viral infection not controlled by adequate treatment.
- Known HIV, hepatitis B virus (HBV) or hepatitis C virus (HCV) infection.
- Pregnant or nursing women may not participate.
- Use of glucocorticoid for systemic therapy within one week prior to entering the trial.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| CLL-1, CD33 and/or CD123-specific CAR gene-engineered T cellsInfusion of CLL-1, CD33 and/or CD123-specific CAR-T cells | Biological | Multiple CAR T cells to treat AML |
Primary outcome
Safety of infusion
Time frame: 1 year
Treatment-related adverse events are assessed by NCI CTCAE V4.0 criteria.
1 secondary outcome
Clinical response
Time frame: 1 year
Results and safety
The study was stopped early. Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 24 Aug 2026.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Lung-Ji Chang, Ph.D principal investigator
Shenzhen Geno-Immune Medical Institute
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 1/2 study testing CLL-1, CD33 and/or CD123-specific CAR gene-engineered T cells in people with Acute Myeloid Leukemia, run by Shenzhen Geno-Immune Medical Institute at 1 site in China.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 7 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: stopped early, as of the sponsor's last update on 24 Aug 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in China. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this combined phase mean?
Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.
Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
The study was stopped early. Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Safety of infusion (time frame: 1 year). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 24 Aug 2026; AzTrials last refreshed its copy on 28 Oct 2026.