In this video, Françoise Mornex, MD, PhD, of Claude Bernard University, Lyon, France, discusses the current state of radiotherapy in the treatment of oligometastatic non-small cell lung cancer (NSCLC). Prof. Mornex reports that although the improved survival outcomes demonstrated by patients treated with stereotactic irradiation is extremely promising, further research is required to determine the optimal dosage and timing of the radiation delivered to NSCLC patients. This interview took place at the European Lung Cancer Congress (ELCC) 2019, held in Geneva, Switzerland.