Venetoclax and Decitabin Based Conditioning Regimen Followed With Post-HSCT Decitabin Maintenance Therapy in TP53 Mutant AML/MDS Patients

"Patients with age\<50 years and HCT-CI\<3:~Haploidentical transplantation: AraC 2g/m2 d-10\~d-9, BU 0.8mg/kg q6h d-8\~-6, CTX 1.8g/m2 d-5\~d-4, Meccnu 250mg/m2 d-3, ATG 1.5mg/kg/d d-5\~-2, VEN 400mg/d d-15\~-9, DEC 20mg/m2 d-15\~-11; HLA-matched transplantation: BU 0.8mg/kg q6h d-7\~-4, CTX 60mg/kg d-3\~d-2, Meccnu 250mg/m2 d-1, VEN d-12\~-8, DEC 20mg/m2 d-12\~-6, and ATG for the unrelated donor type.~Patients with age\>50 years or HCT-CI≥3:~Flu 30mg/m2 d-10\~-5, BU 0.8mg/kg q6h d-7\~-5, Meccnu 250mg/m2 d-4, ATG 7.5mg/kg divided into d-4\~-1, VEN d-15\~-9, DEC 20mg/m2 d-15\~-11.~Note: if Voriconazole or Posaconazole is used to prevent or treat fungal infections, VEN should be 200mg/d for 7 consecutive days."

"In the time window of 60-120 days after transplantation: DEC 5mg/m2/d for 5 consecutive days every 6 to 8 weeks with a total of 4 to 6 courses if there is no severe aGVHD (grade 3 or higher) and the donor chimerism rate of bone marrow blood (STR)\>95%.~If the MRD turns positive, DLI can be performed."