FGFR1 ISH (≥ 20% dot cluster [23% [29/126] cases]), associated with SCLC histology (p = 0.022), soft tissue metastases (p = 0.050) and shorter OS (p = 0.031). Four patients received ponatinib: All were FGFR1 ISH+….High FGFR1-mRNA is more common than FGFR1-AMP and was associated with worse OS.