© 2004 AlphaMed Press Expanding the Clinical Development of BevacizumabCancer Therapy Evaluation Program, National Cancer Institute, Bethesda, Maryland, USA Correspondence: Helen X. Chen, M.D., Cancer Therapy Evaluation Program, National Cancer Institute, 6130 Executive Boulevard, EPN 7131, Bethesda, Maryland 20892, USA. Telephone: 301-496-8798; Fax: 301-402-0428; e-mail: chenh{at}ctep.nci.nih.gov
Bevacizumab (AvastinTM; Genentech, Inc.; South San Francisco, CA) is a recombinant, humanized monoclonal antibody to vascular endothelial growth factor, a key regulator of tumor angiogenesis. Bevacizumab demonstrated potent antitumor activity in preclinical models and has also shown biologic activity and clinical benefit in clinical studies. Notably, a randomized, placebo-controlled phase II trial in renal cell carcinoma demonstrated a significantly longer time to tumor progression with bevacizumab monotherapy. Furthermore, in a phase III trial for untreated advanced colorectal cancer, the addition of bevacizumab to chemotherapy led to significantly longer overall survival and progression-free survival times than chemotherapy alone. The clinical development of bevacizumab has been expanded to include confirmatory phase III trials and exploratory phase II trials in a variety of solid tumors and hematologic malignancies. Treatment regimens being examined include bevacizumab alone and in combination with conventional chemotherapy, radiation, immune therapy, and biologically targeted agents.
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