# Testing What Happens When an Immunotherapy Drug (Pembrolizumab) is Given by Itself Compared to the Usual Treatment of Chemotherapy With Radiation After Surgery for Recurrent Head and Neck Squamous Cell Carcinoma

> clinical trial · VERIFIED · 2026-07-31

Status: RECRUITING · Sponsor: National Cancer Institute (NCI) · Condition: Recurrent Head and Neck Squamous Cell Carcinoma

- Company: National Cancer Institute (NCI)
- Sector: Recurrent Head and Neck Squamous Cell Carcinoma
- Primary source: https://clinicaltrials.gov/study/NCT04671667

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