MK-3475 (SCH 9000475) as neoadjuvant and adjuvant therapy in Stage III-IVA resectable

Brief description of study

The purpose of this research study is to: • Test the safety of the study drug, pembrolizumab (MK-3475) • Test how your cancer responds to one of the following: o Pembrolizumab plus radiation therapy (RT) with or without cisplatin after surgery o RT with or without cisplatin after surgery.

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