Cancer treatment for Dennis

Hello, I am hoping you may be able to help me with some advice please. i have a very dear friend who has advanced prostate cancer and we have been researching Keytruda. We know that is not funded by the government here in Australia either and our friend is prepared to have to spend the money on treatment if it can be made available to him. I am wondering if you would mind being able to share where you were able to do the initial testing for the keytruda and the suitability etc. Did you go through your oncologist? Was he prepared to make Keytruda available for your Dad? I am very sorry to hear about your Dad also and hoping that he is going ok so far. Just awful isn't! Anyway any advice or help you may be able send to me would be really appreciated. Thank you. Jane van Dam