New studies show that AstraZeneca’s monoclonal antibody drug is effective against the COVID-19 variant Omicron, according to a new report.

“The company’s EVUSHELD retains neutralization activity against omicron, according to ‘live’ virus neutralization data from both University College Oxford and Washington University School of Medicine,” ABC News reported.

AstraZeneca’s treatment was authorized on December 8 but used to prevent COVID-19 “among people who are immune compromised, or people who are allergic to vaccine components. It is not authorized as a way to treat COVID-19 among people who have already tested positive,” ABC reported.

“There are three monoclonal antibody treatments currently authorized to treat people who already have COVID-19. Two of those treatments — those made by Eli Lilly and Regeneron — appear to have very little activity against omicron. A third treatment, made by Vir and GlaxoSmithKline, appears to work against omicron but is currently in short supply. The companies are working to scale up production,” said the network.