Role of ofatumumab in treatment of chronic lymphocytic leukemia
Marays Veliz, Javier Pinilla-Ibarz
H Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA
Abstract: The management of chronic lymphocytic leukemia (CLL) has dramatically improved in the past decade with the addition of anti-CD20 monoclonal antibodies to the treatment armamentarium. Ofatumumab is a novel anti-CD20 monoclonal antibody recently approved in the US and Europe for the treatment of CLL refractory to alemtuzumab and fludarabine. Preclinical data showed improved complement-dependent cytotoxicity and antibody-dependent cellular cytotoxicity compared with rituximab. Clinical studies have shown single-agent activity for ofatumumab in CLL and in other low-grade non-Hodgkin's lymphomas. Combination studies are being conducted to enhance the therapeutic efficacy of ofatumumab. This paper reviews some of the key clinical studies that led to approval of ofatumumab, and future directions.
Keywords: ofatumumab, chronic lymphocytic leukemia, efficacy, safety
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