Analysis of the Mortality of Russian Patients With Chronic Myeloid Leukemia in the Multicenter EUTOS ELN Population-based Study (EUTOS-PBS)
CLINICAL LYMPHOMA MYELOMA & LEUKEMIA
Authors: Lazareva, Olga V.; Turkina, Anna G.; Chelysheva, Ekatarina Yu.; Kulikovsky, Anton A.; Galayko, Maria V.; Senderova, Olga M.; Pepeliaeva, Valentina M.; Meresiy, Sergey V.; Luchinin, Alexandr S.; Milutina, Galina I.; Gavrilova, Lyubov V.; Avdeeva, Lyudmila B.; Dasheeva, Elena B.; Vinogradova, Olga Yu.; Julhakyan, Hunan L.; Kulikov, Sergey M.
Abstract
Introduction: Russia took part in the multicenter population-based study (Europe) and included 6.8% adult patients with newly diagnosed chronic myeloid leukemia (CML). The objective of this study was to analyze the mortality in the Russian cohort of patients with newly diagnosed CML in the EUTOS PBS observational study. Patients and Methods: The analyzed cohort consisted of 197 patients (>18 years) with Ph+/BCR-ABL1+ CML diagnosed in the period from October 1, 2009 through December 31, 2012 from 6 regions of Russia. The distribution of the phases of CML were: chronic phase (CP), 93.4% and accelerated phase (AP) + blast crisis (BC), 6% + 0.6%. The median age was 50 years (range, 18-82 years); the male/female ratio was equal. Results: The overall survival (OS) at 5, 6, and 7 years was 80% (95% confidence interval [CI], 72%-86%), 78% (95% CI, 65%-80%), and 73% (95% CI, 65%-80%), respectively (P< .001). The 5-year OS in patients with AP and BC was 39%. In Russia, the study was prolonged, with a median follow-up of 77 months (range, 0.7-108 months): 141 (71.5%) patients were alive, 47 (24%) patients died, and the status of 9 (4.5%) patients is was unknown. Forty-seven (23.8%) patients died during the follow-up period. The largest number of deaths was observed in the first year after the CML diagnosis: 17 (36%) of 47 cases, 3 of 17 died refusing the CML treatment. At the seventh year of CML therapy, 1 patient died after allogenic hematopoietic stem cell transplantation. The causes of death were: (1) progression of CML to AP/BC in 20 (43%) patients; (2) death in remission in 5 (11%) patients with complete cytogenetic response (CCyR) and/or major molecular response; and (3) death without progression to AP/BC but with signs of leukemia in 22 (46%) patients. The 5-year cumulative incidence of death from all reasons was 20%; the cumulative incidence of CML-related and non-CML-related death at the fifth year was 18% and 11%, respectively. Conclusion: In general, the results of treatment in the Russian population sample of non-selected patients with CML were comparable with the data of the total European cohort. The CML-related deaths prevailed in the first year of CML therapy. The appropriate monitoring and therapy interventions during the first year of CML treatment are apparently important for the long-term treatment results. (C) 2020 Elsevier Inc. All rights reserved.
Concomitant Administration of Direct Oral Anticoagulants in Chronic Phase Chronic Myeloid Leukemia Patients Treated with Tyrosine Kinase Inhibitors
CLINICAL DRUG INVESTIGATION
Authors: Serrao, Alessandra; Scalzulli, Emilia; Fiori, Luciano; Di Prima, Alessio; Breccia, Massimo; Chistolini, Antonio
Abstract
Background and Objective In the last decades, the chronic myeloid leukemia (CML) therapeutic landscape has changed dramatically with the introduction of tyrosine kinase inhibitors (TKIs), with 10-year survival rates improving to up to 80%. Long-lasting TKI treatment, in particular with second-generation TKIs, has enabled clinicians to manage the onset of several side effects and other co-morbidities, such as atrial fibrillation or venous thromboembolism (VTE). Methods We retrospectively evaluated nine CML patients treated with TKIs between 2017 and 2020 who experienced atrial fibrillation or VTE and received concomitant administration of TKIs and direct oral anticoagulants (DOACs) outside clinical trials, to evaluate the efficacy and safety of this combination. Results Median age was 66 years at CML diagnosis (range 52-73 years) and 69 years at the time of starting DOACs. A female predominance was observed. The median follow-up of concomitant DOAC and TKI administration was 8.5 months; edoxaban was administered in six patients and apixaban in two patients, and one patient received rivaroxaban. Regarding CML treatment, four patients received imatinib, two patients bosutinib, and three nilotinib. In eight patients DOACs were started for atrial fibrillation and in one patient for VTE. In none of the patients treated with the combination were additional symptomatic thrombotic adverse events or major bleedings reported. Conclusion In this small case series, the use of DOACs in CML patients seemed feasible. Additional data on long-term outcomes including a larger cohort of CML patients treated with DOACs are, however, needed.