AstraZeneca Scraps Monalizumab Clinical Study

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AstraZeneca has told development partner Innate Pharma that it is discontinuing a monalizumab study after a planned futility interim analysis of the INTERLINK-1 Phase 3 study, sponsored by AstraZeneca, did not meet a pre-defined threshold for efficacy.

The INTERLINK-1 study was evaluating monalizumab in combination with cetuximab vs. cetuximab alone in patients with recurrent or metastatic squamous cell carcinoma of the head and neck who had been previously treated with platinum-based chemotherapy and PD-L1 inhibitors. The study’s primary endpoint was overall survival, with secondary endpoints including overall survival in all randomized participants, progression-free survival, overall response rate, duration of response, safety and quality of life. There were no new safety findings, according to Innate.

Monalizumab is described as a potentially first-in-class immune checkpoint inhibitor targeting NKG2A receptors expressed on tumor infiltrating cytotoxic CD8+ T cells and NK cells. “While we are disappointed with the outcome of this study, the findings are certain to advance our understanding of the role of immunotherapy in this setting,” Innate says. “We remain confident in the development program for monalizumab in lung cancer, where encouraging data has been previously reported from the randomized, Phase 2 COAST and Neo-COAST studies.”

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