[New medications; bevacizumab].

Bevacizumab is a humanised monoclonal antibody that targets vascular endothelial growth factor. By blocking the growth factor, bevacizumab inhibits the development of new blood vessels, which in turn inhibits the growth oftumours and metastases. Mean disease-free survival is prolonged in patients with metastatic colorectal carcinoma who are treated with bevacizumab. Evaluation of bevacizumab in other indications is underway.