Thoracic Radiotherapy for Patients With Metastatic (Stage IV) Non-Small Cell Lung Cancer at High Risk of Symptomatic Progression Within the Thorax

This will be a single-cohort Phase II single center, prospective trial. Patients with stage IV NSCLC are eligible. Patients may receive standard of care systemic therapy (chemotherapy and/or immunotherapy). Radiotherapy will be directed at high-risk disease (primary cancer, nodal metastases, and metastases) in the thorax. Treatment of other sites of extrathoracic metastases would be allowed as per standard of care. Standard chest radiation dosing and normal tissue exposures (based on published or ongoing studies) will be applied. There is no plan to escalate the chest radiation dose (i.e., no Phase I component) as palliative regimens for NSCLC have been routinely used for many decades.