%0 Journal Article %A Genescà, Eulàlia %A Morgades, Mireia %A González-Gil, Celia %A Fuster-Tormo, Francisco %A Haferlach, Claudia %A Meggendorfer, Manja %A Montesinos, Pau %A Barba, Pere %A Gil, Cristina %A Coll, Rosa %A Moreno, María-José %A Martínez-Carballeira, Daniel %A García-Cadenas, Irene %A Vives, Susana %A Ribera, Jordi %A González-Campos, José %A Díaz-Beya, Marina %A Mercadal, Santiago %A Artola, María-Teresa %A Cladera, Antonia %A Tormo, Mar %A Bermúdez, Arancha %A Vall-Llovera, Ferran %A Martínez-Sánchez, Pilar %A Amigo, María-Luz %A Monsalvo, Silvia %A Novo, Andrés %A Cervera, Marta %A García-Guiñon, Antonio %A Ciudad, Juana %A Cervera, José %A Hernández-Rivas, Jesús-María %A Granada, Isabel %A Haferlach, Torsten %A Orfao, Alberto %A Solé, Francesc %A Ribera, Josep-Maria %T Adverse prognostic impact of complex karyotype (≥3 cytogenetic alterations) in adult T-cell acute lymphoblastic leukemia (T-ALL). %D 2021 %U http://hdl.handle.net/10668/18008 %X The potential prognostic value of conventional karyotyping in adult T-cell acute lymphoblastic leukemia (T-ALL) remains an open question. We hypothesized that a modified cytogenetic classification, based on the number and type of cytogenetic abnormalities, would allow the identification of high-risk adult T-ALL patients. Complex karyotype defined by the presence of ≥3 cytogenetic alterations identified T-ALL patients with poor prognosis in this study. Karyotypes with ≥3 abnormalities accounted for 16 % (22/139) of all evaluable karyotypes, corresponding to the largest poor prognosis cytogenetic subgroup of T-ALL identified so far. Patients carrying karyotypes with ≥3 cytogenetic alterations showed a significantly inferior response to therapy, and a poor outcome in terms of event-free survival (EFS), overall survival (OS) and cumulative incidence of relapse (CIR), independently of other baseline characteristics and the end-induction minimal residual disease (MRD) level. Additional molecular analyses of patients carrying ≥3 cytogenetic alterations showed a unique molecular profile that could contribute to understand the underlying molecular mechanisms of resistance and to evaluate novel targeted therapies (e.g. IL7R directed) with potential impact on outcome of adult T-ALL patients. %K Adult T-ALL %K Cytogenetics %K NGS %K Prognosis %K Therapy %~