IMFINZI® Injection 120 mg, 500 mg Specific-Clinical Experience Investigation in Patients With Locally Advanced Unresectable Non-small Cell Lung Cancer Who Are Treated With Maintenance Therapy After Definitive Chemoradiation Therapy.

To investigate the impact of presence/absence or grade of radiation pneumonitis before starting IMFINZI, on the onset of interstitial lung disease (including radiation pneumonitis) after starting IMFINZI, in the real world in patients with locally advanced unresectable non-small cell lung cancer who are treated with the product as maintenance therapy after definitive chemoradiation therapy.