Safety and Efficacy of iPD1 CD19 eCAR T Cells in Relapsed or Refractory B-cell Lymphoma

"iPD1 CD19 eCAR T cells are administrated in a 3-day split-dose regimen （d0, 30%; d1, 30%; d2, 40%）.~CAR T cell dose escalation: 1×10\^5 /kg，1×10\^6 /kg，3×10\^6 /kg，and 6×10\^6 CAR T cells/kg"

Fludarabine 25 mg/m2 d1-3; cyclophosphamide 250 mg/m2 d1-3. Lymphodepletion chemotherapy is completed 1 to 4 days before CAR T cell infusion