the 55% progression-free at 7 years is real and it's a big deal in lung cancer.
worth keeping straight though: CROWN is ALK-positive NSCLC only. that's about 4% of lung cancer, selected on one specific gene rearrangement.
and the comparator was crizotinib, which is itself a targeted ALK drug, not chemo. so this is a newer targeted drug beating an older targeted drug in a biomarker-picked group.
lorlatinib works this well because the patients were selected for the exact thing it blocks. that's the precision-medicine bet paying off, not a result that carries over to metastatic solid tumors in general.