STAR stands for Symptomatic Toxicities Assessment and Reporting, a system that helps us better understand the side effects you may experience during immunotherapy. It allows us to ask how you’re feeling — including symptoms like tiredness, pain, nausea, skin changes, stomach problems, or mood changes — and to track these symptoms over time, noting when they start, how long they last, and how much they affect your daily life so we can get a complete picture of your health during treatment.