- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT06209671
INS19 CAR-T Cells for the Treatment of Relapsed or Refractory Acute B Lymphoblastic Leukemia
A Clinical Study to Evaluate the Safety and Efficacy of INS19 CAR-T Cells for the Treatment of Relapsed or Refractory Acute B Lymphoblastic Leukemia
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
The study is planned to enroll 9-12 patients with relapsed or refractory acute B-lymphoblastic leukemia in a modified "3+3" design with two dose groups of 1×10^7 cells and 2×10^7 cells (dose halved for subjects weighing <40 kg). Each dose group is planned to enroll 3-6 subjects to assess safety, and ultimately the SRC will decide whether to continue to add escalating dose groups or to conduct an extension study in a specific dose group based on available safety and efficacy information, with 3-6 subjects to be enrolled in the extension phase.
This study will be divided into a screening period, a cell collection period, a chemotherapy pretreatment period, a return infusion and a follow-up period, and within 28 days of return infusion the investigator will assess whether a DLT (Dose limited toxicity) event has occurred to confirm the safety of this dose group.
Study Type
Enrollment (Estimated)
Phase
- Phase 1
Contacts and Locations
Study Contact
- Name: Fei Wu
- Phone Number: +8615801390058
- Email: wufei@imunopharm.com
Study Contact Backup
- Name: Xiangyu Zhao, PhD
- Phone Number: 8610 88326666
- Email: Zhao_xy@bjmu.edu.cn
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
- Child
- Adult
- Older Adult
Accepts Healthy Volunteers
Description
Inclusion Criteria:
1. Patients with relapsed or refractory acute B-lymphoblastic leukemia who meet one of the following criteria and are diagnosed as CD19 positive by flow cytometry or histology, with the following provisions for the patient's prior treatment:
- 2 or more bone marrow relapses;
- Chemoresistance: relapse after chemotherapy and failure to achieve complete remission (MRD >1%) with at least 1 additional course of chemotherapy;
- Relapse after autologous or allogeneic hematopoietic stem cell transplantation: time from transplantation to reinfusion is at least greater than 6 months;
- Primary refractory: complete remission not achieved after two courses of standard chemotherapy (MRD >1%); 2. Philadelphia chromosome-positive (Ph+) patients are required to meet the following criteria: they should have received at least one relapse or refractory treatment with a tyrosine kinase inhibitor (TKI) agent ± chemotherapy or be intolerant of relapse or refractory to treatment with a TKI analog ± chemotherapy; Ph+ acute lymphoblastic leukemia (ALL) known to be accompanied by a T315I mutation, in the absence of an effective treatment with a TKI analog, is not require patients to be treated with TKI analogs ± chemotherapy; 3. Patients must have evaluable evidence of disease (bone marrow morphology suggestive of ≥5% primitive naive cells or bone marrow MRD >1%); 4. Age 3-70, including boundary values; 5. Expected survival of 3 months or more; 6. Eastern Cooperative Oncology Group (ECOG) score of 0-1 for patients aged 16 years and older (refer to Attachment 1); Lansky score of >50 for patients under 16 years of age (refer to Attachment 2); 7. Women of childbearing potential who have a negative blood pregnancy test prior to the start of the trial and who agree to use effective contraception for the duration of the trial until the last follow-up visit; male subjects whose partners are of childbearing potential agree to use effective contraception for the duration of the trial until the last follow-up visit; 8. Blood cell analysis meet the requirement 9. Adequate organ function 10. Toxicity due to prior therapy has stabilized or recovered to ≤ grade 1 or is not considered clinically significant by the investigator; 11. Volunteer to participate in this trial and sign on the informed consent
Exclusion Criteria:
- Isolated extramedullary disease relapse;
- Leukemia patients with symptoms of significant central nervous system invasion and requiring targeted therapy;
- Prior treatment with a gene product;
- Plasmapheresis with symptoms of compression (e.g., pleural effusion, abdominal effusion);
- Patients with cardiac involvement and gastrointestinal involvement;
- Autoimmune disease requiring systemic immunosuppressive therapy (e.g., Crohn's disease, rheumatoid arthritis, systemic lupus) within 2 years prior to the start of screening;
- History of myocardial infarction, cardiac angioplasty or stenting, unstable angina pectoris, active arrhythmia, or other clinically significant cardiac disease within 6 months prior to the start of screening; patients with NYHA scores greater than Class I (or is it Class II);
- Patients with a history of symptomatic deep vein thrombosis or pulmonary embolism within 6 months prior to the start of screening; or requiring long-term antiplatelet therapy; or undergoing anticoagulation therapy;
- Allergy to the study drug and related ingredients (e.g., albumin);
- Those with Graft-versus-host disease (GVHD) requiring immunosuppression; or GVHD ≥ grade 2 or on anti-GVHD therapy; use of any medication for the treatment of GVHD within 4 weeks prior to enrollment; or autoimmune disease;
Provisions for prior medication:
- Systemic therapy (including chemotherapy, TKI inhibitors, and belintuzumab) 1 week or 5 half-lives prior to the cell collection period; clofarabine or cladribine within 3 months prior to enrollment, or pembrolizumab within 3 weeks prior to enrollment;
- Those who have combined systemic steroid medications within 5 days prior to the cell collection period (except those who have recently or are currently using topical or inhaled steroids);
- Those who have used drugs to stimulate bone marrow hematopoietic cell production within 5 days prior to the cell collection period;
- Patients who have participated in another clinical study within 1 month prior to screening; or who are scheduled to participate in a clinical trial of another drug during this study; however, enrollment will be allowed if the treatment is ineffective or the disease has progressed during the trial and at least 5 half-lives have elapsed prior to cell collection;
- INS19 CAR-T cells have received allogeneic cell therapy, such as donor lymphocyte transfusion, within 6 weeks prior to transfusion;
- Prior CAR-T cell therapy;
- Prior treatment with anti-CD19 target (unless CD19 target test remains positive);
- If immunotherapy such as anti-PD1, PD-L1, etc. has been used prior to INS19 CAR-T cell infusion, at least 4 weeks must have elapsed after the last dose and prior to INS19 CAR-T cell infusion;
- Live vaccination within 6 weeks prior to the start of screening. ii;
- Prior or clinically significant CNS disorders at screening, such as epilepsy, epileptic seizures, paralysis, aphasia, stroke, severe brain injury, dementia, Parkinson's disease, cerebellar disorders, organic brain syndromes, or psychiatric disorders;
- Patients has HBV, HCV, HIV ,EBV, CMV or syphilis infection at the time of screening;
- Pregnant or lactating, or planning pregnancy within 180 days after the end of CAR-T cells infusion, or male patients whose partners plan pregnancy 180 days after their CAR-T cell infusion;
- History of malignancy other than non-melanotic skin cancer or carcinoma in situ (e.g., cervix, bladder, breast) (unless in a disease-free state for at least 5 years);
- Infections (fungal, bacterial, viral, or other) that require intravenous antimicrobial control or are uncontrollable, for simple urinary tract infections, and for bacterial pharyngitis, if the investigator assesses that they can be controlled by curative treatment, are eligible for enrollment.
- Comorbid hereditary bone marrow failure-related syndromes such as Fanconi anemia, Kostmann syndrome, Schwachman syndrome, or other bone marrow failure syndromes, except Down syndrome;
- The presence of any factors affecting compliance with the protocol, or the unwillingness or inability of the subject to comply with the procedures required in the study protocol, as judged by the investigator.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: INS19 CAR-T Cells
After preconditioning with chemotherapy, INS19 CAR-T Cells will be evaluated
|
INS19 CAR-T Cells, 1-2×10^7 cells, treatment follows a lymphodepletion.
Drug: Fludarabine Recommendation: 25-30 mg/m^2/day (D-5~D-3), determined by tumor burden at baseline.
Drug: Cyclophosphamide Recommendation: 250-300 mg/m^2/day (D-5~D-3), determined by tumor burden at baseline.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Incidence of Treatment Related adverse events (AEs)
Time Frame: Up to 28 days after CAR-T cell infusion
|
Incidence of adverse events associated with CAR-T treatment, abnormal clinically significant laboratory findings, including dose-limiting toxicity (DLT) and maximum-tolerated Dose (MTD).
|
Up to 28 days after CAR-T cell infusion
|
Persistence of CAR-T cells
Time Frame: Up to 24 weeks after CAR-T cell infusion
|
cell counts and cell percentage in peripheral blood and bone marrow
|
Up to 24 weeks after CAR-T cell infusion
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Objective response rate (ORR)
Time Frame: At 28 days, 3 months and 6 months after CAR-T cell infusion
|
Objective response rate (ORR)
|
At 28 days, 3 months and 6 months after CAR-T cell infusion
|
Relapse free survival (RFS)
Time Frame: At 28 days, 3 months and 6 months after CAR-T cell infusion
|
Relapse free survival (RFS)
|
At 28 days, 3 months and 6 months after CAR-T cell infusion
|
Relapse free survival (RFS)
Time Frame: Up to 24 months after CAR-T cell infusion
|
Relapse free survival (RFS)
|
Up to 24 months after CAR-T cell infusion
|
Duration of response (DOR)
Time Frame: Up to 24 months after CAR-T cell infusion
|
Duration of response (DOR)
|
Up to 24 months after CAR-T cell infusion
|
Overall survival (OS)
Time Frame: Up to 24 months after CAR-T cell infusion
|
Overall survival (OS)
|
Up to 24 months after CAR-T cell infusion
|
Minimal residual disease (MRD) negative rate
Time Frame: Up to 24 months after CAR-T cell infusion
|
Minimal residual disease (MRD) negative rate
|
Up to 24 months after CAR-T cell infusion
|
Minimal residual disease (MRD) negative duration
Time Frame: Up to 24 months after CAR-T cell infusion
|
Minimal residual disease (MRD) negative duration
|
Up to 24 months after CAR-T cell infusion
|
Anti-therapeutic INS19 CAR-T cells antibody
Time Frame: Up to 24 months after CAR-T cell infusion
|
Anti-therapeutic INS19 CAR-T cells antibody
|
Up to 24 months after CAR-T cell infusion
|
Collaborators and Investigators
Collaborators
Investigators
- Principal Investigator: Xiangyu Zhao, PhD, Peking University People's Hospital
Study record dates
Study Major Dates
Study Start (Estimated)
Primary Completion (Estimated)
Study Completion (Estimated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimated)
Study Record Updates
Last Update Posted (Estimated)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- INS1901
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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