The purpose of this clinical trial is to see if it is better to receive an investigational medication or no further treatment after surgery (and possibly chemotherapy) to remove non-small cell lung cancer (NSCLC).
Two-thirds of study participants will receive the investigational medication and the other third will receive a placebo that looks like the study medication but does not contain an active drug. This research is being done because there is currently no standard treatment for patients with NSCLC who have had their cancer removed by surgery (and possibly received follow-up chemotherapy). The study medication has been shown to shrink tumors in animals, but has only been studied in a few people.