Science

Eli Lilly’s Covid antibody trial paused due to safety concerns

Bloomberg October 14 | Updated on October 14, 2020 Published on October 14, 2020

Monoclonal antibody therapies seen as a viable bridge to a vaccine

Eli Lilly & Co said enrolment of participants in a clinical trial of its antibody treatment for Covid-19 has been paused due to a potential safety concern, pushing down the company’s shares.

An independent data safety monitoring board recommended pausing enrolment in the US government-sponsored trial, a company spokeswoman said in a statement. Lilly didn’t provide information about what caused the panel to recommend the pause.

Indianapolis-based Lilly is one of several companies developing so-called monoclonal antibody therapies, which can potentially aid those with early Covid-19 symptoms from developing severe cases, and is also being studied as a prophylaxis. It’s seen by pharmaceutical executives and government health officials as a viable bridge to a vaccine.

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The class of treatments was spotlighted when President Donald Trump received a similar therapy developed by Regeneron Pharmaceuticals Inc after he was infected with Covid-19. Trump has since called that therapy a cure, and said he would push for it and other similar treatments to get approval in the US.

Largely positive data

In August, the US National Institutes of Health began testing Lilly’s monoclonal antibody known as LY-CoV555 in hospitalised Covid-19 patients. The 300-participant trial known as ACTIV-3 will also treat patients in both the placebo arm and antibody arm with Gilead Sciences Inc’s antiviral remdesivir, which is considered to be a standard of care.

News of the pause in the ACTIV-3 trial was first reported by the New York Times, citing emails that government officials sent to researchers at testing sites. It follows by a day Johnson & Johnson’s decision to pause its vaccine trial because of a sick volunteer.

Such pauses for large clinical trials can occur and don’t necessarily mean anything is wrong with the treatment. A final decision must be made by the monitoring board before any future action is taken.

Preliminary data from both Lilly and Regeneron have been largely positive, suggesting their drugs have the ability to lower the amount of virus in the body.

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Published on October 14, 2020
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