Primary Objective:~The primary objective of this study is to measure the change in ctDNA from trial enrollment to after 2 cycles of adjuvant durvalumab in subjects with stage I to III NSCLC who had positive ctDNA following definitive treatment with surgery or radiation and completion of adjuvant standard of care chemotherapy. Secondary Objectives~To compare disease free survival (DFS)~To compare overall survival (OS)~To evaluate the frequency and severity of toxicity~To evaluate the severity of toxicity
In this study circulating tumor DNA (ctDNA) blood testing is used to detect the residual blood cancer. If residual cancer using this blood test is detected there may be at higher risk of having the cancer return. The study is going to test whether or not the number of circulating cancer cells detected in the blood can be reduced by administration durvalumab after the standard treatment if you are tested positive for the residual cancer.