Chemo-immunotherapy, Hypo-fractionated RT and Maintenance Immunotherapy for Stage III NSCLC.

Patients will receive 1500 mg durvalumab via IV infusion q3w concomitant with chemotherapy (Cisplatin/carboplatin plus etoposide) for up to a maximum of 3 cycles, then via IV infusion at the same interval during sequential radiotherapy and then every 4 weeks for up to a maximum of 12 months or until confirmed disease progression, unless there is unacceptable toxicity, withdrawal of consent, or another discontinuation criterion is met.