RT Journal Article T1 The presence of genomic imbalances is associated with poor outcome in patients with burkitt lymphoma treated with dose‐intensive chemotherapy including rituximab A1 Forero‐Castro, Maribel A1 Robledo, Cristina A1 Lumbreras, Eva A1 Benito, Rocio A1 Hernández‐Sánchez, Jesús M. A1 Hernández Sánchez, María A1 García, Juan L. A1 Corchete‐Sánchez, Luis A. A1 Tormo, Mar A1 Barba, Pere A1 Menárguez Palanca, Francisco Javier A1 Ribera, Jordi A1 Grande, Carlos A1 Escoda, Lourdes A1 Olivier, Carmen A1 Carrillo, Estrella A1 García de Coca, Alfonso A1 Ribera, Josep‐María A1 Hernández‐Rivas, Jesús M. AB The introduction of Rituximab has improved the outcome and survivalrates of Burkitt lymphoma (BL). However, early relapse and refractorinessare current limitations of BL treatment and new biological factors affectingthe outcome of these patients have not been explored. This study aimed toidentify the presence of genomic changes that could predict the response tonew therapies in BL. Forty adolescent and adult BL patients treated withthe Dose-Intensive Chemotherapy Including Rituximab (Burkimab) proto-col (Spanish Programme for the Study and Treatment of HaematologicalMalignancies; PETHEMA) were analysed using array-based comparativegenomic hybridization (CGH). In addition, the presence ofTP53, TCF3(E2A), ID3andGNA13mutations was assessed by next-generationsequencing (NGS). Ninety-seven per cent of the patients harboured geno-mic imbalances. Losses on 11q, 13q, 15q or 17p were associated with apoor response to Burkimab therapy (P=0 038), shorter progression-freesurvival (PFS;P=0 007) and overall survival (OS;P=0 009). The integra-tive analysis of array-CGH and NGS showed that 26 3% (5/19) and 36 8%(7/19) of patients carried alterations in theTP53andTCF3genes, respec-tively.TP53alterations were associated with shorter PFS (P=0 011) whileTCF3alterations were associated with shorter OS (P=0 032). Geneticstudies could be used for risk stratification of BL patients treated with theBurkimab protocol. PB Wiley SN 0007-1048 YR 2016 FD 2016 LK https://hdl.handle.net/20.500.14352/93287 UL https://hdl.handle.net/20.500.14352/93287 LA eng NO Forero‐Castro M, Robledo C, Lumbreras E, Benito R, Hernández‐Sánchez JM, Hernández‐Sánchez M, et al. The presence of genomic imbalances is associated with poor outcome in patients with burkitt lymphoma treated with dose‐intensive chemotherapy including rituximab. Br J Haematol 2016;172:428–38. https://doi.org/10.1111/bjh.13849. NO European Commission NO Fundación Castellano-Leonesa de Hematología y Hemoterapia NO Red Temática de Investigación Cooperativa en Cáncer NO Instituto de Salud Carlos III NO Ministerio de Economía y Competitividad (España) NO Junta de Castilla y León NO Universidad Pedagógica y Tecnológica de Colombia DS Docta Complutense RD 20 dic 2025