This is a single arm study to evaluate the safety and efficacy of CAR19BCMA CAR-T cells in the treatment of relapsed/refractory CD19/BCMA positive plasma cell neoplasms and lymphomas/leukemias with plasmacytic differentiation.
Confirmation for either BCMA or CD19 positivity using immunohistochemistry or flow cytometry
Patients with multiple myeloma, plasma cell carcinoma, plasma cell leukemia and lymphomas/leukemias with plasmacytic differentiation who have received at least three 3 lines treatment (including anti-CD38 monoclonal antibodies, protease inhibitors, immunosuppressants, etc.) but have failed or experienced relapse
Patients with system light chain amyloidosis who have received at least 2 lines treatments in the past [anti-CD38 monoclonal antibody, proteasome inhibitor (PI), or immunomodulatory drug (IMiD)], but have failed or experienced relapse
Age 18-80 years, no gender restrictions
Severe heart failure with left ventricular ejection fraction <50%
A history of severe lung function impairment
Combined with other advanced malignant tumors
Complicated with severe infection that could not be effectively controlled
Single group
CAR19BCMA-T cells
GeneticCAR19BCMA-T cells Each subject will be infused with single dose of CD19BCMA-CAR-T cells. A classic "3+3" dose escalation will be employed. The low dose is 1×10\^6 /kg, the medium dose is 2×10\^6 /kg, and the high dose is 3×10\^6 /kg.
fludarabine and cyclophosphamide
DrugDrug: Fludarabine Fludarabine will be given at a dose of 30 mg/m2/day intravenously (IV) for 3 days prior to the infusion of CD19BCMA-CAR-T cells. Drug: Cyclophosphamide Cyclophosphamide will be given at a dose of 300 mg/m2/day intravenously (IV) for 3 days prior to the infusion of CD19BCMA-CAR-T cells.
According to the incidence of treatment-related adverse events (AEs) to evaluate the safetyof CAR19BCMA CAR-T cells in the treatment of relapsed/refractory CD19+BCMA+plasma cell neoplasms and lymphomas/leukemias with plasmacytic differentiation.
Incidence of treatment-related adverse events (AEs) Description: Number and severity of adverse events graded according to CTCAE v5.0, including cytokine release syndrome (CRS) graded by ASTCT criteria and immune effector cell-associated neurotoxicity syndrome (ICANS) graded by ASBMT criteria
According to the determine the Maximal Tolerable Dose(MTD) to evaluate the safety of CAR19BCMA CAR-T cells in the treatment of relapsed/refractory CD19+BCMA+ plasma cell neoplasms and lymphomas/leukemias with plasmacytic differentiation.
According to the objective response rate (ORR) to evaluate the efficacy of CAR19BCMA CAR-T cells in the treatment of relapsed/refractory CD19+BCMA+ plasma cell neoplasms and lymphomas/leukemias with plasmacytic differentiation.
Overall response rate (ORR) Description: ORR includes strictly defined proportions of complete response (sCR), complete response (CR), very good partial response (VGPR), partial response (PR), and minimal response (MR).
According to the pharmacokinetics (number of CAR-T cells in peripheral blood was measured to evaluate the persistence of CAR-T cells) to explore the kinetics and clonal evolution of CAR19BCMA CAR-T cells.
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This trial is not recruiting at the moment. You can still explore other options:
