Stacker, You ask treatment for metastatic Bladder Cancer and there isn't much except chemo. I have read that M D Anderson in Houston is recommending dose dense MVAC (methotrexate, vinblastine, doxorubicin, and cisplatin) for Stage 4 and some people have reported shrinkage.
I don't know if there is an equivalent cancer hospital in Canada. A couple of the members here have started a forum for Canadians and they might know where the goto place is for Canada in terms of metastasis. They are at
www.cbcan.org
Please keep posting here and let us know how you are doing. Julie