How long can someone live in decent shape with prostate cancer stage 4?

Will depend on ..: The biology of the cancer. Some prostate cancers are aggresive but, some other indolent.Some cancer cells are sensitive to androgen and respond well to androgen blocker some others are resistant to it and requires chemotherapy. It varies. People can live just for several months in a very agressive ca to many years in the indolent one. More treatments available now hopefully will increase survival.

Variable: No self-respecting dr. Gives an accurate timeframe. Depends upon overall health of patient, how aggressive this particular is (ie gleason 9), how much has spread already, whether hormonal or other medication or radiation treatment has been tried and response to these measures. Overall can be as little as a few months and as much as a number of years. Ask your urologist. Good luck.

Lots of ways to be: Stage iv, and lots of treatment options; survival depends on how much disease you have. Treatment relieves symptoms and makes living more enjoyable. (orchiectomy, anti-hormones, even vaccines). While some disease kills people quickly, even very advanced bony disease can live years. The small cell type is distinctive and bad...Short prognosis.

Mets cancer: Unfortunately the 2 year survival of someone with metastatic prostate cancer is 40% and 5 year survival is 10%. Sorry.