What would the life expectancy with prostate cancer that has metastise to the bones be?

Advanced Cancer: Once prostate cancer has spread to the bones, the prognosis becomes poorer. Treatment revolves around suppressing growth by decreasing testosterone. This hormone deprivation, however, only helps for a little while. Eventually the disease will progress. Other treatments are possible, but all in all only 1/3 men in this situation survive 5 years.