Cardiopulmonary Monitoring in Lung Cancer Patients Receiving Combined Thoracic Radiotherapy and Immunotherapy

This study monitors the heart and lung health of lung cancer patients who are receiving radiation therapy combined with immunotherapy. Researchers want to better understand how this combination treatment affects the heart and lungs over time. **You may be eligible if...** - You are over 18 years old - You have been diagnosed with locally advanced lung cancer (non-small cell or small cell) - You are planned to receive radiation therapy (at a significant dose) followed by immunotherapy - You are in reasonably good physical condition (able to carry out light work) - Your expected lifespan is at least 6 months **You may NOT be eligible if...** - You have previously received radiation to the chest - You are not a candidate for curative radiation therapy or immunotherapy - You have serious existing medical or psychiatric conditions Talk to your doctor to see if this trial is right for you.