Is local consolidative therapy adequate for the treatment of oligometastatic non-small cell lung cancer?

Lung cancer with distant metastases is regarded as a systemically spread disease and so is conventionally indicated for systemic chemotherapy treatment. Cancer drug treatment has recently developed rapidly for advanced non-small cell lung cancer (NSCLC) and many pharmacotherapies are available as a treatment choice, including cytotoxic chemotherapy, molecular-targeted therapy, and immunotherapy.