Inhibition of emerging polyclonal on-target acquired resistance mutations remains a critical unmet need in the treatment of fibroblast growth factor receptor 2 (FGFR2)-driven tumors. In the current study, researchers from Tyra Biosciences Inc. presented the preclinical characterization of a novel FGFR1/2/3 inhibitor, TYRA-200, being developed for the treatment of cancer.