Patients with stage IV CRC are mainly treated with fluorouracil-based chemotherapies, in combination with epidermal growth factor receptor (EGFR) or vascular endothelial growth factor (VEGF) inhibitors, and the median life expectancy is in the range of 21.3 to 30.1 months [4,5,6,7]. This evidence concerns the gene EGFR and colorectal carcinoma.