Lilly Begins Covid Trial of Baricitinib

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Eli Lilly says it has enrolled the first patient in a Phase 3 randomized, double-blind, placebo-controlled study to evaluate the efficacy and safety of baricitinib, an oral JAK1/JAK2 inhibitor licensed from Incyte, in hospitalized adults with Covid-19. Baricitinib, marketed as Olumiant, is approved in 70 countries for treating moderately to severely active rheumatoid arthritis. Lilly expects to enroll 400 patients in the trial, with data expected in the next few months. The study will be conducted in the U.S., Europe and Latin America and includes patients hospitalized with Covid-19 infection who have at least one elevated marker of inflammation but do not require invasive mechanical ventilation at study entry, the company says.

 

It is believed that through JAK1 and JAK2 inhibition, baricitinib may reduce the cytokine storm associated with the complications from the infection, Lilly says. In addition, baricitinib may have a role in inhibiting the host cell proteins that assist in viral reproduction, reducing the ability of infected cells to make more virus.

 

The primary endpoint in the study is the proportion of patients who die or require non-invasive ventilation/high-flow oxygen or invasive mechanical ventilation by day 28 in patients treated with 4 mg of baricitinib daily (with background therapy) compared to placebo (with background therapy). Patients will receive baricitinib or placebo for up to 14 days or until discharged from the hospital.

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