An Open Label, Single Arm, Multicenter, Safety Study of Atezolizumab in Locally Advanced or Metastatic Urothelial or Non-Urothelial Carcinoma of the Urinary Tract

This Phase IIIb, multicenter study will assess the safety of atezolizumab as second- to fourth-line treatment for participants with locally advanced or metastatic urothelial or non-urothelial cancer of the urinary tract in addition to evaluate the efficacy of atezolizumab and potential tumor biomarkers associated with atezolizumab.