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Prognostic impact of DDX41 germline mutations in intensively treated acute myeloid leukemia patients: an ALFA-FILO study
Abstract
DDX41 germline mutations (DDX41MutGL) are the most common genetic predisposition to myelodysplastic syndrome and acute myeloid leukemia (AML). Recent reports suggest that DDX41MutGL myeloid malignancies could be considered as a distinct entity, even if their specific presentation and outcome remain to be defined. We described here the clinical and biological features of 191 patients with DDX41MutGL AML. Baseline characteristics and outcome of 86 of them, treated with intensive chemotherapy in 5 prospective ALFA/FILO trials were compared with those of 1604 DDX41 wild-type (DDX41WT) AML patients, representing a prevalence of 5%. DDX41MutGL AML patients were mostly males (75%) in their seventh decade, with low leukocyte count (median, 2x109/L), low bone marrow blast infiltration (median, 33%), normal cytogenetics (75%) and few additional somatic mutations (median, 2). A second somatic DDX41 mutation (DDX41MutSom) was found in 82% of patients and clonal architecture inference suggested that it could be the main driver for AML progression. DDX41MutGL patients displayed higher complete remission (CR) rates (94% vs. 69%, p
Product Used
NGS
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