Colorectal cancer is the third most common form of cancer in Europe, Its prognosis is poor, since median survival time for metastatic patients is about 20 months. Progresses in molecular biology have lead to significant improvement in the management of metastatic colorectal cancer with targeted therapies. The monoclonal antibodies anti-EGFR and anti-VEGFR improve the overall and the progression-free survival. The anti-EGFR antibodies (cétuximab and panitumumab) have been marketed in Belgium, as monotherapy or in association with chemotherapy (FOLFIRI) for third line use in patients with wild type K-ras. The anti-VEGFR bevacizumab is the standard first line treatment in metastatic colorectal cancer with irinotecan based chemotherapy. For the future, the place of monoclonal antibodies therapies in adjuvant or in first line settings and the value of combining targeted therapies have to be further defined.
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