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Inicio Medicina Clínica (English Edition) MYC-rearranged lymphomas other than Burkitt: Comparison between R-CHOP and Burki...
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Vol. 149. Issue 8.
Pages 339-342 (October 2017)
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Vol. 149. Issue 8.
Pages 339-342 (October 2017)
Brief report
MYC-rearranged lymphomas other than Burkitt: Comparison between R-CHOP and Burkitt-type immunochemotherapy
Linfomas con reordenamiento de MYC distintos del linfoma de Burkitt: comparación entre R-CHOP y la inmunoquimioterapia tipo Burkitt
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Maria Joao Baptistaa, Gustavo Tapiab, José-Ángel Hernández-Rivasc, Alejandra Martínez-Trillosd, José-Luis Mateb, José-Tomás Navarroa,
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jnavarro@iconcologia.net

Corresponding author.
a Departamento de Hematología, Institut Català d’Oncologia (ICO)-Hospital Universitari Germans Trias i Pujol, Josep Carreras Leukaemia Research Institute, Universitat Autònoma de Barcelona, Badalona, Barcelona, Spain
b Departamento de Anatomía Patológica, Hospital Universitari Germans Trias i Pujol, Universitat Autònoma de Barcelona, Badalona, Barcelona, Spain
c Departamento de Hematología, Hospital Universitario Infanta Leonor, Universidad Complutense de Madrid, Madrid, Spain
d Departamento de Hematología, Hospital Clínic, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
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Alejandro Martín García-Sancho
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Table 1. Main characteristics of patients with non-Burkitt lymphomas with MYC rearrangement, comparing single hit against double and triple hit lymphomas.
Abstract
Background and objective

MYC-rearranged (MYC-R) lymphomas other than Burkitt lymphoma (BL) are very aggressive, with poor prognosis when treated with standard regimens. We aimed to study the characteristics and outcome of a series of MYC-R lymphomas comparing the treatment results between R-CHOP based and a specific intensive regimen for BL (BURKIMAB).

Patients and methods

Retrospective study of patients diagnosed with MYC-R. Translocations of MYC, BCL2 and BCL6 were evaluated by fluorescent in situ hybridization. Patients were treated with either, R-CHOP based immunochemotherapy or the Burkitt type regimen, BURKIMAB.

Results

Thirty-four MYC-R lymphoma cases were studied: 21 treated with R-CHOP and 13 treated with BURKIMAB. There were no differences in CR rate; 45% (9/20) for R-CHOP and 42% (5/12) for BURKIMAB (p=0.99). Although overall survival (OS) and progression free survival (PFS) of BURKIMAB-treated patients were better than those of R-CHOP-treated (3y-OS: 46 vs. 24%; 3y-PFS: 46 vs. 10%), the differences were not statistically significant.

Conclusion

MYC-R lymphomas show poor outcomes even when treated with intensive immunochemotherapy for BL.

Keywords:
Lymphoma
MYC
Immunochemotherapy
Prognosis
Resumen
Antecedentes y objetivo

Los linfomas con reordenamiento de MYC (MYC-R) diferentes al linfoma de Burkitt (LB) son muy agresivos, con un pronóstico desfavorable cuando se tratan con regímenes estándar. El objetivo del estudio fue investigar las características y el resultado de una serie de linfomas MYC-R, comparando los resultados del tratamiento de los regímenes basados en R-CHOP y un régimen intensivo específico para LB (BURKIMAB).

Pacientes y métodos

Estudio retrospectivo de pacientes diagnosticados de MYC-R. Se evaluaron las translocaciones de MYC, BCL2 y BCL6 mediante hibridación in situ fluorescente. Se trató a los pacientes, bien con inmunoquimioterapia basada en R-CHOP, bien con el régimen tipo Burkitt, BURKIMAB.

Resultados

Se estudiaron 34 casos de linfomas MYC-R: 21 tratados con R-CHOP y 13 tratados con BURKIMAB. No se produjeron diferencias en cuanto a tasa de RC; 45% (9/20) para R-CHOP y 42% (5/12) para BURKIMAB (p=0,99). Aunque la supervivencia global (SG) y la supervivencia libre de progresión (SLP) de los pacientes tratados con BURKIMAB fueron mejores que las de los pacientes tratados con R-CHOP (SG a 3 años: 46 frente a 24%; SLP a 3 años: 46 frente a 10%), las diferencias no fueron estadísticamente significativas.

Conclusión

Los linfomas MYC-R muestran resultados desfavorables, aun cuando se tratan con inmunoquimioterapia intensiva para LB.

Palabras clave:
Linfoma
MYC
Inmunoquimioterapia
Pronóstico

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