Hematology (Amsterdam, Netherlands) · 2023
Treatment regimens in patients over 64 years with acute myeloid leukaemia: a retrospective single-institution, multi-site analysis.
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Sutter Tabea, Schittenhelm Marcus, Volken Thomas, Lehmann Thomas
Аннотация
OBJECTIVES: The aim of this study is to investigate the effect of treatment choice on survival, transfusion needs and hospitalizations in patients > 64 years old with newly diagnosed acute myeloid leukaemia (AML).
MATERIAL AND METHODS: This study retrospectively analysed patients over 64 years with AML diagnosed at a regional healthcare network in Switzerland between 2017 and 2020. Patients underwent four therapy groups: intensive chemotherapy (IC), hypomethylating agent in combination with the BCL2-Inhibitor venetoclax (HMA + VEN), hypomethylating agents alone (HMA) or best supportive care (BSC).
RESULTS: Of 54 patients 12 (22%) were selected for IC, 13 (24%) for HMA + VEN, 17 (32%) for HMA and 12 (22%) for BSC. The median overall survival of the patients was 76 days, with a significant difference in the four therapy groups (IC 119 days, HMA + VEN 732 days, HMA monotherapy 73 days and BSC 12 days Log-Rank Test Chi2(2): p < 0.001). Patients with HMA + VEN spent significantly less time in the hospital 6.8 days/month compared to IC (19.5 days/month), HMA (20.5 days/month) and BSC (10.5 days/month) (p = 0.005). Transfusion needs were the highest in IC (7.0 RBC/month, 8.0 PC/month) (p = 0.023), whereas there was no difference between HMA + VEN (2.5 RBC/month, 3.2 PC/month), HMA monotherapy (5.3 RBC/month, 6.2 PC/month) and BSC (3.0 RBC/month, 1.4 PC/month).
CONCLUSION: Our real-world data demonstrate superior OS rates of HMA + VEN when compared to IC, HMC or BSC, with a favourable side effect profile with regard to transfusion needs or hospitalization days.
UNLABELLED: Abbreviations: AML, acute myeloid leukaemia; BCL2, B-cell leukaemia/lymphoma-2; BSC, best supportive care; CR, complete response; Cri, complete response with incomplete haematologic regeneration; FLT3, Fms Related Receptor Tyrosine Kinase 3; EKOS, Ethikkomission Ostschweiz; ELN, European Leukaemia Net; HMA, hypomethylating agent; IC, intensive chemotherapy; IDH, Isocitratdehydrogenase; LDAC, low-dose Cytarabine; NCCN, National Comprehensive Cancer Network; OS, overall survival; PC, platelet concentrate; RBC, red blood cell; RCT, randomized controlled trials; t-AML, therapy relative acute myeloid leukaemia'; VEN, venetoclax.
MATERIAL AND METHODS: This study retrospectively analysed patients over 64 years with AML diagnosed at a regional healthcare network in Switzerland between 2017 and 2020. Patients underwent four therapy groups: intensive chemotherapy (IC), hypomethylating agent in combination with the BCL2-Inhibitor venetoclax (HMA + VEN), hypomethylating agents alone (HMA) or best supportive care (BSC).
RESULTS: Of 54 patients 12 (22%) were selected for IC, 13 (24%) for HMA + VEN, 17 (32%) for HMA and 12 (22%) for BSC. The median overall survival of the patients was 76 days, with a significant difference in the four therapy groups (IC 119 days, HMA + VEN 732 days, HMA monotherapy 73 days and BSC 12 days Log-Rank Test Chi2(2): p < 0.001). Patients with HMA + VEN spent significantly less time in the hospital 6.8 days/month compared to IC (19.5 days/month), HMA (20.5 days/month) and BSC (10.5 days/month) (p = 0.005). Transfusion needs were the highest in IC (7.0 RBC/month, 8.0 PC/month) (p = 0.023), whereas there was no difference between HMA + VEN (2.5 RBC/month, 3.2 PC/month), HMA monotherapy (5.3 RBC/month, 6.2 PC/month) and BSC (3.0 RBC/month, 1.4 PC/month).
CONCLUSION: Our real-world data demonstrate superior OS rates of HMA + VEN when compared to IC, HMC or BSC, with a favourable side effect profile with regard to transfusion needs or hospitalization days.
UNLABELLED: Abbreviations: AML, acute myeloid leukaemia; BCL2, B-cell leukaemia/lymphoma-2; BSC, best supportive care; CR, complete response; Cri, complete response with incomplete haematologic regeneration; FLT3, Fms Related Receptor Tyrosine Kinase 3; EKOS, Ethikkomission Ostschweiz; ELN, European Leukaemia Net; HMA, hypomethylating agent; IC, intensive chemotherapy; IDH, Isocitratdehydrogenase; LDAC, low-dose Cytarabine; NCCN, National Comprehensive Cancer Network; OS, overall survival; PC, platelet concentrate; RBC, red blood cell; RCT, randomized controlled trials; t-AML, therapy relative acute myeloid leukaemia'; VEN, venetoclax.