I’m currently about a third of the way through an immunotherapy drug trial at Sunnybrook. However, it is post-cystectomy with neo. My Stage 3 (aggressive) cancer had luckily not spread and lymph nodes etc were clean. I’d had a radical hysterectomy in 2002, so perhaps that helped it not to spread. Anyway, I think the trials is looking to see if the drug (they use IMvigor now; it started out being called Tecentriq) has any effect on recurrence. The oncologist who is in charge of my trial is Dr. Susanna Cheng (she’s wonderful). Her clinical trials nurse is Nesan Bandali (she’s also wonderful). They may be able to point you in the right direction.