AstraZeneca’s long-acting antibody combo advances into Phase III clinical trials

AstraZeneca’s long-acting antibody (LAAB) combination, AZD7442, will advance into two Phase III clinical trials in more than 6,000 participants at sites in and outside the US that are due to begin in the next weeks.

The LAABs have been engineered with AstraZeneca’s proprietary half-life extension technology to increase the durability of the therapy for six to 12 months following a single administration.

The combination of two LAABs is also designed to reduce the risk of resistance developed by the SARS-CoV-2 virus.

The Company has received support of around $486 million from the US Government for the development and supply of AZD7442 under an agreement with the Biomedical Advanced Research and Development Authority (BARDA), part of the Office of the Assistant Secretary for Preparedness and Response at the US Department of Health and Human Services, and the Department of Defense Joint Program Executive Office for Chemical, Biological, Radiological and Nuclear Defense.

One trial will evaluate the safety and efficacy of AZD7442 to prevent infection for up to 12 months, in approximately 5,000 participants. The second trial will evaluate post-exposure prophylaxis and pre-emptive treatment in approximately 1,100 participants.

AstraZeneca is planning additional trials to evaluate AZD7442 in approximately 4,000 patients for the treatment of COVID-19.

The company also plans to supply up to 100,000 doses starting towards the end of 2020 and the US Government can acquire up to an additional one million doses in 2021 under a separate agreement.

“This agreement with the US Government will help accelerate the development of our long-acting antibody combination which has the potential to provide immediate and long-lasting effect in both preventing and treating COVID-19 infections,” said CEO Pascal Soriot.

“We will be evaluating the LAAB combination in different settings from prophylaxis, to outpatient treatment to hospitalisation, with a focus on helping the most vulnerable people.”

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