Among the above-mentioned cancers, NSCLC was one of the most frequently studied objects of EGFR-targeted therapy, as evidenced by such clinical trials as INTEREST, ISEL (for gefitinib), and BR21 and SATURN (for erlotinib, another EGFR-TKI) [2,4,10,11]. This evidence concerns the gene EGFR and non-small cell lung carcinoma.