Cancer Survivors Network

I'm just getting involved with this and am looking for any help. My father originally diagnosed in 1996 with PC. He had testicles removed and radiation. PSA went to .001. In Oct 2004, his PSA started rising. Bone scan revealed nothing. Dr did freezing of prostate in Jan 2005. PSA kept going up. Another bone scan in Mar 2005 showed one mass in right hip. He again had radiation. PSA still going up. Bone scan in Aug 2005 showed numerous masses throughout body in his bones. PSA now at 76.7. Urologist sent him to oncologist. She started him on casadex. PSA still up. Changed to hydro cortoisone and ketoconazole. After three months, PSA up to 135.4. He has now taken two treatments of taxedure. PSA up to 170.9. Oncologist sent him to Duke University and dr there agreed with current treatment. He has no pain (all drs amazed at that) and still has his strength. He gets very depressed when PSA keeps going up. Oncologist is going to do another bone scan and PSA after two more chemo treatments. Has anyone ever had such a high PSA? I apologize for any misspelled words. Any words of encouragement I can pass on to him. He will be 78 in August and this is his only health problem. Thanks for any input.