Prognostic role of FGFR alterations and FGFR mRNA expression in metastatic urothelial cancer undergoing checkpoint inhibitor therapy.
To examine the disease-specific survival(DSS) after checkpoint inhibitor(CPI) therapy based on FGFR alterations and FGFR mRNA expression levels in patients with metastatic urothelial cancer(mUCa) within a multi-center cohort.