Lorlatinib (PF-06463922) is a selective, orally active, brain-penetrant and ATP-competitive ROS1/ALK inhibitor with anticancer activity. Lorlatinib has Kis of L1196M, respectively. Lorlatinib targets to EML4-ALK, and inhibits ALK phosphorylation with IC50s of 15-43 nM (ALKL1196), 14-80 nM (ALKG1269A), 38-50 nM (ALK1151Tins), 77-113 nM (ALKG1202R), respectively[1][2][3].