USA: U.S. drug regulators have directed health care workers in eight states to stop using a COVID-19 treatment because it may not be effective against an Omicron coronavirus subvariant that’s rising in prevalence.
The Food and Drug Administration (FDA) said sotrovimab, a monoclonal antibody used to treat COVID-19, can no longer be used in Connecticut, Maine, Massachusetts, New Hampshire, New Jersey, New York, Rhode Island, and Vermont.
Providers in Puerto Rico and the Virgin Islands also have been told to stop using stotrovimab.
Regulators believe that the treatment, which was given emergency use authorization in May 2021, “is unlikely to be effective against the BA.2 subvariant,” the FDA said in a statement.
BA.2 is a subvariant of Omicron, a variant of the CCP (Chinese Communist Party) virus, the pathogen that causes COVID-19.
According to genomic surveillance conducted by the Centers for Disease Control and Prevention, BA.2 was responsible for 12.6 percent of COVID-19 cases in the United States in the week ending on March 5. But the agency projected an increase to 35 percent in the week ending on March 19, and the subvariant was pegged as circulating widely in the northeast.
Based on the estimates, BA.2 is responsible for the majority of the cases in the states where the administration of sotrovimab is now limited.
The FDA had indicated in February that it would limit the treatment.
Several studies have indicated that sotrovimab doesn’t perform well against BA.2, including one published in Nature Medicine.
But GlaxoSmithKline and Vir Biotechnology, the makers of the drug, have said that testing suggested that the treatment retained neutralizing activity against BA.2.
The companies said on March 25 that they were aware of the FDA’s move and are preparing to send a data package to the agency and other regulatory authorities that show a higher dose of sotrovimab works against BA.2.
COVID-19 treatments that do appear to be effective against BA.2 include Pfizer’s pill, paxlovid; the antiviral from Gilead Sciences known as remdesivir; and the recently authorized bebtelovimab, a monoclonal made by Eli Lilly, according to the FDA.
“We will continue to monitor BA.2 in all U.S. regions and may revise the authorization further to ensure that patients with COVID-19 have effective treatments available. Health care providers should also monitor the frequency of BA.2 in their region as they choose appropriate treatment options for patients,” the agency said.
The FDA previously cut off authorization for REGEN-COV, a monoclonal from Regeneron, and a separate treatment from Eli Lilly because laboratory testing suggested that they didn’t hold up well against Omicron.
By
Join: 👉 https://t.me/acnewspatriots
The opinions expressed by contributors and/or content partners are their own and do not necessarily reflect the views of AC.NEWS
Disclaimer: This article may contain statements that reflect the opinion of the author. The contents of this article are of sole responsibility of the author(s). AC.News will not be responsible for any inaccurate or incorrect statement in this article www.ac.news websites contain copyrighted material the use of which has not always been specifically authorized by the copyright owner. We are making such material available to our readers under the provisions of “fair use” in an effort to advance a better understanding of political, health, economic and social issues. The material on this site is distributed without profit to those who have expressed a prior interest in receiving it for research and educational purposes. If you wish to use copyrighted material for purposes other than “fair use” you must request permission from the copyright owner. Reprinting this article: Non-commercial use OK. If you wish to use copyrighted material for purposes other than “fair use” you must request permission from the copyright owner.
Disclaimer: The information and opinions shared are for informational purposes only including, but not limited to, text, graphics, images and other material are not intended as medical advice or instruction. Nothing mentioned is intended to be a substitute for professional medical advice, diagnosis or treatment.
Discussion about this post