This phase I trial studies the side effects and best dose of berzosertib (M6620) when given together with cisplatin and radiation therapy in treating patients with head and neck squamous cell carcinoma that has spread from where it started to nearby tissue or lymph nodes (locally advanced). M6620 may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Chemotherapy drugs, such as cisplatin, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Radiation therapy uses high energy x-rays to kill tumor cells and shrink tumors. Giving M6620 together with cisplatin and radiation therapy may work better in treating patients with locally advanced head and neck squamous cell carcinoma.
Age range
18 Years
Sex
ALL
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Number of Participants Experiencing Grade 3, 4, and 5 Adverse Events
Timeframe: Up to 6.5 years
Number of Participants Experiencing a Dose Limiting Toxicities
Timeframe: Up to 3 weeks after completion of radiation therapy
Establish the Recommended Phase 2 Dose (RP2D)
Timeframe: Up to 7 weeks