FGFR1 and cancer: Activation of FGFR1, 2 and 3 has been reported in a diverse range of cancer types (Turner and Grose, 2010a), and in vitro studies have revealed both cytostatic and cytotoxic responses to FGFR inhibition in FGFR‐mutant cancer cell lines (Gavine et al., 2012; Kunii et al., 2008; Lamont et al., 2011).