ALK and non-small cell lung carcinoma: In a clinical case study, ALK G1202R was identified in a patient with ALK-rearranged non-small cell lung cancer after the disease progressed while on alectinib therapy, suggesting that with coexistence of ALK G1202R or not, the choices of alectinib in ALK-rearranged non-small cell lung cancer patients are different [26].