Question: how long can a person live with metastatic breast cancer?
Answer: Between 20 and 30 percent of women with early stage breast cancer go on to develop metastatic disease. While treatable, metastatic breast cancer (MBC) cannot be cured. The five-year survival rate for stage 4 breast cancer is 22 percent; median survival is three years. Annually, the disease takes 40,000 lives.