5 February 2021

The KESTREL Phase III trial for AstraZeneca’s Imfinzi (durvalumab) did not meet the primary endpoint of improving overall survival (OS) versus the EXTREME treatment regimen (chemotherapy plus cetuximab), a standard of care, in the 1st-line treatment of patients with recurrent or metastatic head and neck squamous cell carcinoma (HNSCC) whose tumours expressed high levels of PD-L1. Also, the combination of Imfinzi plus tremelimumab did not indicate an OS benefit in ‘all-comer’ patients, a secondary endpoint.

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