AstraZeneca (AZN) Shares Drop 9% After Heart Drug Trial Failure

AstraZeneca's (AZN) stock fell as much as 9% following the failure of its experimental heart drug, Wainua, in a late-stage clinical trial. The trial did not achieve its primary goal of reducing deaths and heart-related emergencies over 140 weeks when compared to a placebo. The stock was last recorded down 8.9% in London, marking the company's worst performance since March 2020. This decline indicates significant market concern over the company’s pipeline and its impact on future earnings.