Description: Crizotini is a small molecule tyrosinek inaseinhibitor(TKI)targeting anaplastic lymphoma kinase(ALK),ROS1,and another oncogene receptor tyrosine kinase MET.Its main function is to treat locally advanced or metastatic non-small cell lung cancer(NSCLC)patients with anaplastic lymphoma kinase(ALK) positivity determined by SFDA approved testing methods.