I had proton radiation 5 days a week for 23 sessions. My PSA is now 0.04 and has been for quite some time. I also had testosterone deprivation shots for a year. Remission is a good thing.
12 years ago I was treated with proton radiation for my prostate cancer. 44 sessions. Outside of loose stools, no side effects from the treatment. I recently asked my doctor if my prostate cancer was cured since I had always been told that cancer is a disease that is never really cured, only goes into remission. He answered that I was cured as cured can be.