Here, we present the case of a 37-year-old female who was diagnosed with stage IV NSCLC (adenocarcinoma) with a positive ALK mutation six years ago...she has continued to have an excellent response to alectinib, documented with the gradual decrease in the size of the lung lesion (Figure 3) and no apparent, metabolically active disease according to positron emission tomography-CT scans. She has had an Eastern Cooperative Oncology Group Performance Status score of zero with an excellent quality of life.