We also provide a comprehensive review of the novel therapeutic approaches, including fibroblast growth factor receptor inhibitors (FGFR), human epidermal growth factor receptor (HER) pathway inhibitors, and various other ADCs targeting antigens, such as nectin-4, Trop-2, and tissue factors that are available to improve the survival of advanced bladder cancer. This evidence concerns the gene NECTIN4 and urinary bladder cancer.