1. Study Title:
A Study on the Efficacy and safety of Autocrine p40-Expressing CD19-Targeted Chimeric Antigen Receptor T Cells (CD19-CAR.p40-T) in Patients With Relapsed/Refractory CD19-Positive Hematologic Malignancies
2. Study Objectives:
2.1.1 Primary Objective To evaluate the safety of autocrine p40-expressing CD19-targeted chimeric antigen receptor T cells (CD19-CAR.p40-T) in the treatment of patients with relapsed/refractory CD19-positive hematologic malignancies.
2.1.2 Secondary Objective To evaluate the efficacy of autocrine p40-expressing CD19-targeted chimeric antigen receptor T cells (CD19-CAR.p40-T) in the treatment of patients with relapsed/refractory CD19-positive hematologic malignancies.
2.1.3 Exploratory Objective To evaluate the in vivo expansion and persistence of CD19-CAR.p40-T cells.
3. Participant Intervention:
Participants will receive lymphodepleting chemotherapy (FC regimen: Fludarabine + Cyclophosphamide) on Days -5, -4, and -3 relative to the planned CD19-CAR.p40-T cell infusion. The CD19-CAR.p40-T cell infusion will be administered 72 hours after the completion of the FC chemotherapy.