This study is being done to determine if the study drug, Olaparib has an effect on urothelial carcinoma or other non-prostate genitourinary cancers in people with DNA-repair changes in their genes.
This study aims to determine if Olaparib is better or worse than the usual approach for urothelial cancer or other non-prostate genitourinary cancers. There is no standard of care for these cancers, but people who are not participating in a study are usually treated with single-drug taxane chemotherapies (e.g. paclitaxel, abraxane, docetaxel).