SupCD7 CART for Relapsed or Refractory CD7 Positive Hematologic Malignancies

Subjects screened to meet the requirements for supCD7 CART cells use will enter clinical trials. Subjects were assessed at baseline. Fludarabine and cyclophosphamide based preconditioning should be performed within 1 week prior to supCD7 CART cells infusion: fludarabine (Flu) 30mg/m2 ×3 days; cyclophosphamide (CTX) 500mg/m2 ×3 days. The investigator can adjust the pretreatment regimen appropriately according to the condition of the subject, such as increasing the dose of CTX to 600mg/m2 ×3 days, increasing the application of cytarabine and VP-16. Infusion of supCD7 CART cells must be performed 24 hours after completion of chemotherapy preconditioning. supCD7 CART cells can be infused at D-1 if the requirement of 24 hours after completion of preconditioning is met.