AstraZeneca Plc’s Covid-19 antibody cocktail was found to be 77% effective in preventing symptomatic Covid-19 in high-risk people in a key trial that could expand the range of drugs available to vulnerable groups.
Results from Astra’s study found no one in the trial who received the cocktail contracted severe Covid-19 or died in relation to the disease, the company said in a statement Friday. The trial of 5,197 participants, which started in November, was looking at whether the drug could prevent infection in at-risk groups and took place in the U.S., U.K., Belgium, France and Spain.
The outcome will be a big relief for Astra after another study testing whether the cocktail could prevent symptomatic Covid-19 in people explicitly exposed to the virus failed in June. The findings may also salvage a deal with the U.S. to purchase the drug. The U.S. had ordered as many as 700,000 doses for delivery in 2021, the value of which was partly contingent on the failed trial.
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