CD19 Chimeric Antigen Receptors and CD19 Positive Feeder T Cells as a Leukemia Consolidation Treatment

Detailed Description: Patients were divided into two groups, group 1 and group 2, and each group was enrolled in 5 patients. Group 1 patients did not receive any pretreatment, and group 2 patients received pretreatment with cyclophosphamide and fludarabine prior to reinfusion. Then Patients were given Chimeric Antigen Receptor T-Cell ( CAR-T) and CD19-positive T cells.