Among the 170 patients who received futibatinib 20 mg QD, 10.6% experienced PRs, and 38.2% experienced SD...PRs were observed in a patient with head and neck cancer harboring an FGFR1-PLAG1 fusion (DOR, 5.6 months) and another patient with an FGFR2 p.Y375C mutation (DOR, 10.3 months) whose primary tumor was unknown.