For copax, there is a small percentage of patients (2%) in after marketing studies who experienced
kidney or flank pain, and I read about an instance of
kidney failure, but seen no reference to the actual percentage or instances of how many. I'll dig for the source for you if you are interested.
As far as provigil, you may find more information if you look for post marketing adverse reactions,kidney/renal (as key words) problems for modafinil.
What kind of doc looking into this for you?