JAVEMACS: Japan AVElumab Maintenance And Continuous Treatment Study

Inclusion Criteria: * Participants diagnosed with locally advanced/metastatic urothelial carcinoma (la/m UC) before receiving avelumab first line maintenance therapy * Participants with la/m UC (irrespective of tumor histology) whose disease has not progressed (ongoing stable disease, partial response, or complete response) following completion of first line PBCT and who has been treated with avelumab * Participants who has been started avelumab first line maintenance therapy for la/m UC from 24 Feb 2021 (date of approval for UC) to 6 months before the date of approval of implementation of this study at each site * Participants aged \>= 18 years old at index date * Other protocol defined inclusion criteria could apply Exclusion Criteria: * Participant participated in a clinical trial in la/m UC during the study periods.