Rituximab and Other New Anti-CD20 MAbs for Non-Hodgkin’s Lymphoma Treatment

*Letizia Polito, Massimo Bortolotti, Stefania Maiello, Maria Giulia Battelli, Andrea Bolognesi

Department of Experimental, Diagnostic, and Specialty Medicine – DIMES, Alma Mater Studiorum – University of Bologna, Bologna, Italy
*Correspondence to letizia.polito@unibo.it

Disclosure: No potential conflict of interest.
Received: 01.04.14 Accepted: 18.06.14
Citation: EMJ Oncol. 2014;2:63-69.

Abstract

Non-Hodgkin’s lymphomas (NHLs) are a heterogeneous group of different haematological cancers with a wide range of aggressiveness. NHLs represent >80% of lymphomas and the majority of NHLs involve B cells. CD20 represents a good target for NHL immunotherapy because it is largely expressed on B cell NHL and not on B cell precursors and plasma cells. The anti-CD20 monoclonal antibody (mAb) rituximab (RTX) was the first antibody approved by the FDA for lymphoma therapy and has revolutionised B cell lymphoma treatment. Several clinical trials have demonstrated the high efficacy of RTX, resulting in a significant improvement in overall response rates and in NHL patient survival. However, RTX, both as a single agent and in combination with chemotherapy, induces several side-effects and resistance mechanisms. Remarkable efforts have been made to improve RTX efficacy, including conjugation to an active moiety (radionuclide, toxin, enzyme, or drug) and the development of new anti-CD20 mAbs. This review summarises the characteristics of RTX and other anti-CD20 mAbs for NHL treatment; the results of the main clinical trials are reported.

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