The proportion of PFS events attributable to death in the absence of documented radiographic progression was numerically higher among those on anticoagulation than among those not on anticoagulation in the ALK‐rearranged group (10/34 [29%] versus 5/77 [6%], respectively), suggesting that a worse PFS might partly be attributed to non‐cancer‐related deaths. This evidence concerns the gene ALK and cancer.