My husband, age 87, was diagnosed with Stage 4 advanced prostate cancer in November, 2008. His psa was 44. He has received Lupron injections every 4 months and took Casadex for several months but discontinued recently as it was no longer effective.. His psa continued to drop until reaching .0.25(when Casadex was working) but now has risen to 0.82. We saw an Urologist Oncologist this week and his treatment would be Provenge. Any information about this would be most helpful. Also, any other treatments except chemotherapy. Thank you very much.