This is a single center, open-label, phase 1 study to determine the safety and feasibility of infusing CART22-65s with or without huCART19 after administration of lymphodepleting chemotherapy in adult patients with relapsed or refractory B-ALL.
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
23
Autologous T cells transduced with a lentiviral vector to express anti-CD22 scFv TCRz:41BB
Autologous T cells transduced with lentiviral vector to express anti-CD19 scFv TCRζ:4-1BB
University of Pennsylvania
Philadelphia, Pennsylvania, United States
Assess the safety of CART22-65s in ALL subjects using the common terminology criteria of adverse events (CTCAE) v5.0.
Frequency and severity of adverse events, including, but not limited to, cytokine release syndrome (CRS).
Time frame: 15 months
Assess the safety of combination CART22-65s and huCART19 in relapsed/refractory ALL Subjects using the common terminology criteria of adverse events (CTCAE) v5.0.
Frequency and severity of adverse events, including, but not limited to, cytokine release syndrome (CRS).
Time frame: 15 months
Tumor response.
Overall Complete Remission Rate (ORR) at Day 28 which includes CR and CR with incomplete blood count recovery (CRi).
Time frame: 28 Days
Tumor response.
overall response rate (CR/CRi by or at Month 6) and disease response status at Month 6
Time frame: 6 months
Tumor response.
overall survival (OS)
Time frame: 1 Year
Tumor response.
duration of remission (DOR)
Time frame: 1 Year
Tumor response.
relapse free survival (RFS)
Time frame: 1 Year
Tumor response.
event free survival (EFS)
Time frame: 1 Year
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CAR T cell kinetics
Engraftment and persistence in blood by qPCR (or flow cytometry)
Time frame: 1 Year
CAR T cell kinetics
Trafficking to target tissue (bone marrow) or other tissues (cerebral spinal fluid and other tissues if available) as determined by qPCR (or flow cytometry).
Time frame: 1 Year
Evaluate bioactivity of CAR T cells
Measure levels of systemic soluble immune and inflammatory factors by Luminex-based analyses
Time frame: 1 Year
Determine antigen expression and normal B cell levels in response to CAR T cells
Measure CD22, CD19 and B cell levels pre- and post-CAR T cell infusion by flow cytometry
Time frame: 1 Year