Self refer, if you can, to a genitourinary oncologist. They specialize in prostate cancer and have the latest information on prostate cancer.
Many urologist are less informed. Many oncologist are less informed.
He needs the best of the best of the best.
Checkout the ANCAN.org website.
They have support group videos on YouTube which will show you the kind of people they are. Watch the advanced support group videos.
Best of care to him.