Immunotherapy in previously treated non-small cell lung cancer (NSCLC)

Cancer of the lung and bronchus continues to be the leading cause of deaths attributed to cancer in the United States, with an estimated 155,870 deaths from lung cancer in 2017 (1). Unfortunately, the majority are diagnosed at an advanced disease stage at the time of presentation which portends a poor prognosis with 5-year survival rates of approximately 4% (2)