1. Do NPM1 and FLT3-ITD mutations modify prognosis in patients treated with non-intensive regimens?
- Author
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Suárez, E. U., Boluda, B., Lavilla, E., Tormo, M., Botella, C., Gil, C., Vives, S., Rodríguez, C., Serrano, J., Sayas, M. J., Martínez-Sánchez, P., Ramos, F., Bernal, T., Algarra, L., Bergua-Burgues, J. M., Pérez-Simón, J. A., Herrera, P., Barrios, M., Noriega-Concepción, V., and Raposo-Puglia, J. A.
- Subjects
ACUTE myeloid leukemia ,LEUKOCYTE count ,PROGNOSIS ,GENETIC mutation ,OVERALL survival - Abstract
FLT3-ITD and NPM1 mutations are key to defining the genetic risk profile of acute myeloid leukemia (AML). We aimed to assess the prognostic features of the FLT3-ITD and NPM1 mutations in old and/or unfit individuals with AML treated with non-intensive therapies in the era before azacitidine-venetoclax approbation. The results of various non-intensive regimens were also compared. We conducted a retrospective analysis that included patients treated with different non-intensive regimens, between 2007 and 2020 from PETHEMA AML registry. We compiled 707 patients with a median age of 74 years and median follow-up time of 37.7 months. FLT3-ITD patients (N = 98) showed a non-significant difference in overall survival (OS) compared to FLT3-ITD negative-patients (N = 608) (P = 0.17, median OS was 5 vs 7.3 months respectively). NPM1-mutated patients (N = 144) also showed a non-significant difference with NPM1 wild type (N = 519) patients (P = 0.25, median OS 7.2 vs 6.8 respectively). In the Cox regression analysis neither NPM1 nor FLT3-ITD nor age were significant prognostic variables for OS prediction. Abnormal karyotype and a high leukocyte count showed a statistically significant deleterious effect. Azacitidine also showed better survival compared to FLUGA (low dose cytarabine plus fludarabine). NPM1 and FLT3-ITD seem to lack prognostic value in older/unfit AML patients treated with non-intensive regimens other than azacitidine-venetoclax combination. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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