Bayer’s asundexian fails key atrial fibrillation study

20 Nov 2023
Phase 3
Bayer suffered a setback in its efforts to develop asundexian after the oral FXIa inhibitor failed to work as well as Pfizer and Bristol Myers Squibb’s direct oral anticoagulant Eliquis (apixaban) in patients with atrial fibrillation. The company’s shares plunged nearly as much as 18% on Monday.
The Phase III OCEANIC-AF study compared once-daily asundexian to Eliquis in patients with atrial fibrillation at risk for stroke with the trial designed to assess prevention of stroke and systemic embolism. Bayer said that an independent data monitoring committee recommended stopping the study early due to the “inferior efficacy” of asundexian.
More to come.
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