Metastatic prostate cancer survival rate is determined by many factors, such as the overall condition of the patient and also the location where the cancer metastasized. Prostate cancer is actually highly treatable as long as it is found early. When prostate cancer is diagnosed in early stage (Stage 1 or 2), the 5-year survival rate is close to 100%. Even when the cancer has reach Stage 3 and it has metastasized to nearby organs, the survival rate is still nearly 100%. It means, prostate cancer is highly treatable as long as it is found early.