I am entering the next stage of my battle with this disease. Background, I was diagnosed with Stage IV PCa back in August 2012. PSA was 23, numerous spots on my bones. Been on Lupron and Xgeva/Prolia ever since. I am now CRPCa as my PSA has been rising slowly over the last couple years. Last test in December was 5.551. My oncologist is starting me on Zytiga and Prednisone next week. I'm sure many on here have followed the same path. Wondering what to expect.