How effective is chemotherapy for lung cancer?

Q: You suggested that chemotherapy is the most common treatment for lung cancer. What is the probability of recovery if we take chemotherapy and how long can the patient live if he/she has lung cancer ?

A:The treatment for lung cancer depends on stage : For early stage - surgery is recommended; if tumor is inoperable - chemotherapy is given to reduce the size/ control of cancer. In advanced lung cancer the chances of achieving response are about 50-60%. One year survival is approximately 30%.