Demonstrating this, a recent phase II study showed that previously-treated NSCLC patients using a combination therapy of OAM4558g (MET-MAb) plus erlotinib versus just erlotinib alone reported that the MET-MAb plus erlotinib therapy significantly improved PFS and OS, resulting in a near 3-fold reduction in the risk of death. This evidence concerns the gene MET and non-small cell lung carcinoma.