Probably the most immediate potentially practice-changing presentation from ASCO was the Japanese J-ALEX study in the subset of about 4-5% of patients with non-small cell lung cancer (NSCLC) who have the molecular driver known as an anaplastic lymphoma kinase (ALK) rearrangement, which we now routinely test for from the tumor tissue of patients with a non-squamous metastatic NSCLC.

Dr. Ross Camidge, University of Colorado, addresses the question of whether to use a second generation ALK inhibitor as first line therapy or only after acquired resistance to crizotinib.