Regeneron ‘antibody cocktail’ helps prevent COVID, trial results show

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SAN FRANCISCO (KRON) — Phase 3 trial results by biotech company Regeneron showed its new drug provides long-term protection against COVID. A single dose of the antibody cocktail reduced COVID risk by 81.6% during months two through eight, according to results released Monday.

Previously published results already showed its effectiveness within one month of getting the injection. Regeneron said none of the participants who were injected with a single dose of the “REGEN-COV” antibody cocktail were hospitalized with COVID during the eight-month trial run in collaboration with the National Institute of Allergy and Infectious Diseases.

Meanwhile, six people in the placebo group were hospitalized with COVID, the results revealed. “These results demonstrate that REGEN-COV has the potential to provide long-lasting immunity from SARS-CoV-2 infection, a result particularly important to those who do not respond to COVID vaccines including people who are immunocompromised,” said Dr. Myron S. Cohen, who leads the monoclonal antibody efforts for the NIH-sponsored COVID Prevention Network.

Participants in both the placebo group and the test group were allowed to get the COVID vaccine after the first month, Regeneron said, but the number of people vaccinated was balanced: 34.5% of the REGEN-COV group and 35.2% of the placebo group received at least one COVID vaccine dose by the end of the eight-month trial.

Regeneron said its drug is not authorized as a substitute for the vaccine, however. REGEN-COV currently has emergency use authorization in the U.S. to treat people who already have mild to moderate COVID symptoms and are at high risk of more serious consequences from the COVID infection. It’s not authorized for people who are already hospitalized with COVID, according to the company.

The FDA has agreed to review applications for the antibody cocktail and is expected to take action in April.

Copyright 2021 Nexstar Media Inc. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.

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