ArticleCancer2026
A phase 1 study of berzosertib (M6620, VX-970) in combination with cisplatin and radiation in patients with locally advanced head and neck squamous cell carcinoma (ETCTN 9950).
Article in Cancer, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
2 citing papers in PubMed.
- Article
- Therapeutic resistance in HPV-positive oropharyngeal squamous cell carcinoma: molecular mechanisms, clinical challenges, and precision strategies.Frontiers in genetics · 2026Review
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Authors and funding
27 authors.
Funding
Abstract
backgroundAtaxia telangiectasia Rad3-related (ATR) protein kinase regulates DNA damage response and is essential for tumor cell survival. Preclinically, ATR inhibition can sensitize tumor cells to radiation and chemotherapy. The authors conducted a phase 1 trial of berzosertib, a selective ATR inhibitor, in combination with definitive radiation and cisplatin in locally advanced head and neck squamous cell cancers (LA-HNSCC).
methodsLA-HNSCC patients received daily radiation (2 Gy per fraction to 70 Gy) and weekly intravenous (iv) cisplatin 40 mg/m
resultsForty-one of 43 enrolled patients were evaluable for safety and preliminary efficacy assessments. Four patients experienced dose-limiting toxicities (DLTs) in dose-escalation: grade 4 thrombocytopenia (1), grade 4 respiratory failure (1), grade 3 renal injury and hypoxia (1), and inability to receive 90% of the planned radiation dose (1). DL3 was the recommended phase 2 dose, and 15 patients were enrolled at this DL as an expansion cohort. Objective response rates (ORR) in patient cohorts treated with any amount of berzosertib; treated with at least 50% of planned treatment; and in the expansion cohort were 78.8% (26 of 33), 78.8% (26 of 33), and 63.6% (7 of 11), respectively, after excluding eight inevaluable patients without post-treatment imaging assessment.
conclusionsBerzosertib (200 mg/m
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