Ok, so your husband was receiving BCG immunotherapy for a recurrence of a T1, high grade bladder tumor, which I assume was removed. How many treatments total before the reactions forced him to stop? I ask because BCG is given in 'rounds' of six weekly treatments, that's called a course. I wondered i your husband has done a course, and now can't tolerate another (second) round...meaning he recurred after a course of six.
One thing I would want to know is why aren't they testing the kidneys and ureters if there is no tumor to be seen in the bladder. It sounds like they were treating the kidney and ureter, or at least planning to. So...they must at least suspect upper tract involvement. This "stage T1, high grade" must be referring to the first recurrence that was removed...but now, how can they give a clear stage and grade, only by looking at cells in the urine (which must be originating somewhere).
Did your husband receive an IVP test, where a dye is injected and the upper tract is visualised? A CT scan? Ultra sound or anything else? These types of tests are standard before beginning BCG, in order to be sure of the stage.
Anything above stage T1 and BCG is no longer is used because it won't help. That's when surgery and chemotherapy come into play. Or radiation (depends on who you see, surgeon, oncologist or radiologist!).
Your husband has already had invasive cancer, and the recurrence was also aggressive. When BCG fails to halt T1 TCC, there are other, bladder sparing drugs or approaches, but it's risky. When cancer doesn't respond to BCG the risk of progression is high.
There are many approaches, and opinions differ, so it might be best to start looking for a good second opinion, no matter what happens. If that's a valid option for you, perhaps we could suggest some good doctors. The most ideal would be to have a uro-oncolgist, who specialized in bladder cancer, part of a team at a good institution with access to the best technology and up to date treatments.
Take care,
Wendy