GVHD Prophylaxis by Addition of CD20 Monoclonal Antibody to the Conditioning Regimen in SAA With Treatment of Allo-HSCT

"4.2 Conditioning Regimen~4.2.1 Matched sibling donor~1. ATG arm (control group) Fludarabine 30mg/m2/d×6d（-7d \~ -2d）+ Cyclophosphamide 50mg/kg/d×2d （-4d \~ -3d）+ ATG 2.5mg/kg/d×5d（-8d \~ -4d）~2. ATG + CD20 monoclonal antibody (test arm) Fludarabine 30mg/m2/d×6d（-7d \~ -2d） + Cyclophosphamide 50mg/kg/d×2d （-4d \~ -3d）+ ATG 2.5mg/kg/d×5d（-8d \~ -4d）+ CD20 monoclonal antibody 375mg/m2, -1d~4.2.2 Unrelated donor and haploidentical donor~1. ATG arm (control group) Busulfan 3.2 mg/kg/d（0.8 mg/kg，q6h）×2d（-7d \~ -6d） + Cyclophosphamide 50mg/kg/d×4d （-5d \~ -2d）+ ATG 2.5mg/kg/d×4d（-5d \~ -2d）~2. ATG + CD20 monoclonal antibody (test arm) Busulfan 3.2 mg/kg/d（0.8 mg/kg，q6h）×2d（-7d \~ -6d） + Cyclophosphamide 50mg/kg/d×4d （-5d \~ -2d）+ ATG 2.5mg/kg/d×4d（-5d \~ -2d）+ CD20 monoclonal antibody 375mg/m2, -1d"

"4.2 Conditioning Regimen~4.2.1 Matched sibling donor~1. ATG arm (control group) Fludarabine 30mg/m2/d×6d（-7d \~ -2d）+ Cyclophosphamide 50mg/kg/d×2d （-4d \~ -3d）+ ATG 2.5mg/kg/d×5d（-8d \~ -4d）~2. ATG + CD20 monoclonal antibody (test arm) Fludarabine 30mg/m2/d×6d（-7d \~ -2d） + Cyclophosphamide 50mg/kg/d×2d （-4d \~ -3d）+ ATG 2.5mg/kg/d×5d（-8d \~ -4d）+ CD20 monoclonal antibody 375mg/m2, -1d~4.2.2 Unrelated donor and haploidentical donor~1. ATG arm (control group) Busulfan 3.2 mg/kg/d（0.8 mg/kg，q6h）×2d（-7d \~ -6d） + Cyclophosphamide 50mg/kg/d×4d （-5d \~ -2d）+ ATG 2.5mg/kg/d×4d（-5d \~ -2d）~2. ATG + CD20 monoclonal antibody (test arm) Busulfan 3.2 mg/kg/d（0.8 mg/kg，q6h）×2d（-7d \~ -6d） + Cyclophosphamide 50mg/kg/d×4d （-5d \~ -2d）+ ATG 2.5mg/kg/d×4d（-5d \~ -2d）+ CD20 monoclonal antibody 375mg/m2, -1d"