In vitro data presented here demonstrate that the ALK-overexpressing NEPC cell line MSKCC EF1 is sensitive to the ALK inhibitors crizotinib and ceritinib and show IC50 values similar to the ALK-rearranged lung cancer (H2228) or ALK-mutated neuroblastoma (SH-SY5Y) cell lines. Here, ALK is linked to lung carcinoma.