[en] Acute myeloid leukemia (AML) with translocation t(8;16)(p11;p13) represents a rare entity that has been categorized as a disease-defining recurring cytogenetic abnormality with adverse risk in the 2022 European LeukemiaNet classification. This rating was mainly based on a retrospective analysis comprising patients from several large clinical trials, which, however, included only 21 patients treated with allogeneic stem cell transplantation (alloSCT). Therefore, the European Society for Blood and Marrow Transplantation performed a registry study on a larger cohort to evaluate the role of alloSCT in t(8;16) AML. Sixty transplant recipients with t(8;16) AML were identified. Two-year overall and leukemia-free survival (OS/LFS) was 43/39%. Patients transplanted in first complete remission (CR1, n = 44) achieved a 2-year OS/LFS of 48%/48%. Following alloSCT in CR1, the multivariable analysis identified a complex karyotype (CK) as a major risk factor for relapse (HR 4.17, p = .016), lower LFS (HR 3.38, p = .01), and lower OS (HR 3.08, p = .017). Two-year OS/LFS of patients with CK was 19%/19%, in contrast to 67%/67% in patients with t(8;16) outside a CK. Other factors for inferior outcomes were older age and secondary AML. In summary, alloSCT could mitigate the adverse risk of patients with t(8;16) AML not harboring a CK, particularly when performed in CR1.
Disciplines :
Hematology
Author, co-author :
Schmälter, Ann-Kristin ; Department of Hematology and Oncology, Augsburg University Hospital and Medical Faculty, Comprehensive Cancer Center Augsburg, Augsburg, Germany ; Bavarian Cancer Research Center (BZKF), Augsburg, Germany
Labopin, Myriam; EBMT Paris Study Office, Paris, France
Versluis, Jurjen; Erasmus University Medical Center Cancer Institute, Rotterdam, The Netherlands
Gallego Hernanz, Maria Pilar; Hematology Department, CHU de Poitiers, Poitiers, France
Eder, Matthias; Department of Stem Cell Transplantation, Hannover Medical School, Hannover, Germany
von dem Borne, Peter; Leiden University Hospital, BMT Centre Leiden, Leiden, The Netherlands
Socié, Gerard; Saint-Louis Hospital, BMT Unit, Paris, France
Chevallier, Patrice ; CHU Nantes, Nantes, France
Forcade, Edouard; CHU Bordeaux, Hôpital Haut-Leveque, Pessac, France
Neubauer, Andreas; Clinic for Hematology, Oncology, Immunology, and Carreras Leukemia Center, Philipps University Marburg, Marburg, Germany
Baron, Frédéric ; Université de Liège - ULiège > Département des sciences cliniques
Bazarbachi, Ali ; Bone Marrow Transplantation Program, Department of Internal Medicine, American University of Beirut Medical Center, Beirut, Lebanon
Bug, Gesine ; Department for Hematology and Oncology, University Hospital Frankfurt, Frankfurt, Germany
Nagler, Arnon ; Hematology and Bone Marrow Transplantation Division, Chaim Sheba Medical Center, Tel Aviv University, Ramat Gan, Israel
Schmid, Christoph; Department of Hematology and Oncology, Augsburg University Hospital and Medical Faculty, Comprehensive Cancer Center Augsburg, Augsburg, Germany ; Bavarian Cancer Research Center (BZKF), Augsburg, Germany
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