Medical oncology
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Bladder cancer is the most common malignancy involving the genitourinary system (Siegel et al. in CA Cancer J Clin, 66:7-30, 2016). In the USA, it is the fifth most common cancer and approximately 79,000 new cases will be diagnosed in 2017 (Siegel et al. in CA Cancer J Clin, 66:7-30, 2016). The mortality from bladder cancer is approximately 17,000 deaths each year (Siegel et al. in CA Cancer J Clin, 66:7-30, 2016). ⋯ Atezolizumab and Pembrolizumab have also been approved as first-line therapy in the setting of cisplatin-ineligible metastatic bladder cancer (Gupta et al. in Cancer, 9(15):1-14, 2017; Zilchi et al. in BioMed Res Int, 2017, 2017, doi: 10.1155/2017/5618174 ). Those that target cytotoxic T-lymphocyte-associated protein 4, including Ipilimumab and Tremelimumab, have also been investigated and further studies are being performed (Gupta et al. in Cancer, 9(15):1-14, 2017; Zilchi et al. in BioMed Res Int, 2017, 2017, doi: 10.1155/2017/5618174 ). This review outlines the systemic immunotherapies that have been approved or are currently being investigated.