The survival time of advanced cancer may not be long, but depending on the type of cancer and the location of the cancer, as well as the treatment, it is possible to survive for a longer period of time, such as 3-5 years or even longer. For example, brain metastasis of lung cancer is advanced, but it can be treated with targeted drugs, so it may be possible to survive for a longer time. If the survival is more than five years without recurrence, it means the disease is more stable and considered as clinical cure. In addition, some patients with advanced cancer do not have targeted therapy, but if their physical condition allows, they can consider systemic chemotherapy and some Chinese medicine adjuvant therapy, which can also extend the survival period, but it is not sure how many years they can live, they may live 1-2 years, or less than a year.