[Prognostic analysis of allogeneic hematopoietic stem cell transplantation for Philadelphia chromosome-positive acute lymphoblastic leukemia in complete remission in the era of tyrosine kinase inhibitors].
2020
Objective: To study the clinical results and prognostic factors for allo-HSCT of Philadelphia chromosome-positive (Ph(+)) acute lymphoblastic leukemia (ALL) in complete remission (CR) in the era of tyrosine kinase inhibitors (TKI) . Methods: We performed a retrospective analysis of the clinical characteristics of 116 patients with Ph(+)ALL who underwent allo-HSCT while in CR. Results: The study population included 72 men and 44 women. The median patient age was 20 years (4-64 years) . The patients received sibling-identical donor (n=21) , haplo (n=77) , and unrelated donor (n=18) HSCT. The overall survival (OS) rate at 5 years was 73.2% (95% CI 63.8% -80.5% ) . In particular, the 5-year OS can reach 87.5% when the time from diagnosis to transplant is CR(1), MRD negative or positive, conditioning regimen based on TBI or Bu, conditioning intensity, donor source, GVHD prophylactic proposal using cyclosporine or tacrolimus, presence/absence of CMV viremia, and presence/absence of EBV viremia were not significantly different in terms of the OS and DFS. Conclusion: Factors influencing the overall survival of Ph(+) ALL patients who underwent allo-HSCT in CR in the TKI era include age, time form diagnosis to HSCT, and aGVHD severity.
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