CD19 & CD22 Bispecific CAR T Cells in the Treatment of Relapsed/Refractory B Cell Hematologic Tumors
This study is a multi-center, open, prospective single-arm clinical study of patients with relapsed / refractory B cell hematological tumors to evaluate the safety and efficacy of CD19 \& CD22 bispecific CAR-T cells in relapsed / refractory B cell hematological tumors while collecting pharmacokinetics and pharmacodynamics indicators of CAR-T cells.