Acute megakaryoblastic leukaemia shows high frequency of chromosome 1q aberrations and dismal outcome

© 2023 The Authors. British Journal of Haematology published by British Society for Haematology and John Wiley & Sons Ltd..

Acute megakaryoblastic leukaemia (AMKL) is associated with poor prognosis. Limited information is available on its cytogenetics, molecular genetics and clinical outcome. We performed genetic analyses, evaluated prognostic factors and the value of allogeneic haematopoietic stem cell transplantation (allo-HSCT) in a homogenous adult AMKL patient cohort. We retrospectively analysed 38 adult patients with AMKL (median age: 58 years, range: 21-80). Most received intensive treatment in AML Cooperative Group (AMLCG) trials between 2001 and 2016. Cytogenetic data showed an accumulation of adverse risk markers according to ELN 2017 and an unexpected high frequency of structural aberrations on chromosome arm 1q (33%). Most frequently, mutations occurred in TET2 (23%), TP53 (23%), JAK2 (19%), PTPN11 (19%) and RUNX1 (15%). Complete remission rate in 33 patients receiving intensive chemotherapy was 33% and median overall survival (OS) was 33 weeks (95% CI: 21-45). Patients undergoing allo-HSCT (n = 14) had a superior median OS (68 weeks; 95% CI: 11-126) and relapse-free survival (RFS) of 27 weeks (95% CI: 4-50), although cumulative incidence of relapse after allo-HSCT was high (62%). The prognosis of AMKL is determined by adverse genetic risk factors and therapy resistance. So far allo-HSCT is the only potentially curative treatment option in this dismal AML subgroup.

Medienart:

E-Artikel

Erscheinungsjahr:

2023

Erschienen:

2023

Enthalten in:

Zur Gesamtaufnahme - volume:202

Enthalten in:

British journal of haematology - 202(2023), 6 vom: 16. Sept., Seite 1165-1177

Sprache:

Englisch

Beteiligte Personen:

Pastore, Friederike [VerfasserIn]
Gittinger, Hanna [VerfasserIn]
Raab, Susanne [VerfasserIn]
Tschuri, Sebastian [VerfasserIn]
Ksienzyk, Bianka [VerfasserIn]
Konstandin, Nikola P [VerfasserIn]
Schneider, Stephanie [VerfasserIn]
Rothenberg-Thurley, Maja [VerfasserIn]
Horny, Hans-Peter [VerfasserIn]
Werner, Martin [VerfasserIn]
Sauerland, Maria C [VerfasserIn]
Amler, Susanne [VerfasserIn]
Görlich, Dennis [VerfasserIn]
Berdel, Wolfgang E [VerfasserIn]
Wörmann, Bernhard [VerfasserIn]
Braess, Jan [VerfasserIn]
Hiddemann, Wolfgang [VerfasserIn]
Tischer, Johanna [VerfasserIn]
Herold, Tobias [VerfasserIn]
Metzeler, Klaus H [VerfasserIn]
Spiekermann, Karsten [VerfasserIn]

Links:

Volltext

Themen:

AMKL
AML
AML M7
Allo-HSCT
Cytogenetic and molecular landscape
Journal Article
Prognosis
Research Support, Non-U.S. Gov't

Anmerkungen:

Date Completed 12.09.2023

Date Revised 20.09.2023

published: Print-Electronic

ClinicalTrials.gov: NCT01382147

Citation Status MEDLINE

doi:

10.1111/bjh.18982

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM35956030X