Abstract Background: Genetic abnormalities of the fibroblast growth factor receptor 2 (FGFR2) gene, including amplification, fusions, and mutations, have been reported in various solid tumors. While molecular targeted therapies against FGFR2 fusion have been proved to be useful in cholangiocarcinoma, the therapeutic significance of FGFR2 inhibitors remains unclear in other various solid cancers. Genomic and clinical information from solid tumor cancer gene panel testing cases is consolidated in the Center for Cancer Genomics and Advanced Therapeutics (C-CAT) database in Japan. This study aimed to utilize the C-CAT database to clarify the clinical-pathological significance of FGFR2 abnormalities. Materials Part 1 (Regular Abstracts); 2026 Apr 17-22; San Diego, CA. Philadelphia (PA): AACR; Cancer Res 2026;86(7 Suppl):Abstract nr 3918.
Nishikubo et al. (2026) studied this question.