Introduction: Immune checkpoint inhibitors (ICIs) have rapidly changed the treatment landscape, demonstrating dramatic clinical efficacy in various cancers.
Areas Covered: In urothelial cancer (UC), several ICIs have been approved in platinum refractory disease and also as first-line therapy in patients that fulfill the criteria for cisplatin ineligibility. Atezolizumab is a monoclonal antibody that targets the immune checkpoint Programmed Cell Death Ligand-1 (PD-L1) and has been currently approved for advanced UC, non-small cell lung cancer, small cell lung cancer, and triple-negative breast cancer. Herein, we provide a summary of the mechanism of action, safety, and clinical efficacy of atezolizumab in UC.
Expert Opinion: Atezolizumab is a drug with a favorable toxicity profile and will obtain more indications in the future in UC and other cancers. Treating physicians should be aware of treatment-related and immune-related adverse events associated with the drug.
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