FDA Accepts for Review AstraZeneca Lupus Therapy

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FDA has accepted for review AstraZeneca’s anifrolumab, an investigational drug for treating moderate to severe systemic lupus erythematosus (SLE). The agency is expected to make a review decision in the third quarter next year.

The submission was based on data from the two TULIP Phase 3 trials and the MUSE Phase 2 trial, in which the company says a reduction in disease activity and improvement in lupus skin activity were observed with anifrolumab added to standard-of-care therapy compared to placebo and standard-of-care. For example, the Phase 3 TULIP 2 trial met its primary endpoint — “achieving a statistically-significant and clinically-meaningful reduction in disease activity versus placebo.” The reduction, AstraZeneca says, “was measured using the British Isles Lupus Assessment Group based Composite Lupus Assessment (BICLA) at week 52. The BICLA requires improvement in all organs with disease activity at baseline with no new flares.”

Anifrolumab is a human monoclonal antibody that binds to subunit 1 of the type I interferon receptor, blocking the activity of all type 1 interferons including IFN-alpha, IFN-beta and IFN-omega, the company says. “Type I interferons are cytokines involved in the inflammatory pathways,” it says. “Between 60% and 80% of adults with SLE have an increased type I interferon gene signature, which has been shown to correlate with disease activity.”

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