Immune Checkpoint Inhibitors and Atherosclerotic Plaque Volume

In this study, investigators plan to test whether Immune Checkpoint Inhibitor (ICI) treatment leads to an accelerated progression of atherosclerosis in patients with lung cancer. Atherosclerosis is an immune-mediated inflammatory disease and these same checkpoints being targeted for cancer are critical negative regulators of atherosclerosis in animal and cellular models. Aortic plaque progression will be compared between cases (on ICI) and controls from pre-ICI to post-ICI among patients with non-small cell lung cancer. Groups will be matched for age, cancer type and stage and cardiovascular risk factors. Traditional markers of cardiovascular (CVD) risk and cancer-specific factors (ICI mono- and combination therapy, number of cycles, occurrence of immune-related adverse events, chest radiation, steroid use) will be associated with the change in aortic plaque volume.