Amgen: Positive Data on Uplizna in Ig G4 Disease

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Amgen is announcing positive topline results from its randomized, placebo-controlled Phase 3 clinical trial (MITIGATE) evaluating the efficacy and safety of Uplizna (inebilizumab-cdon) for treating immunoglobulin G4-related disease (IgG4-RD). Currently, the therapy is approved for neuromyelitis optica spectrum disorder.

The company says the trial met its primary endpoint, showing a statistically significant 87% reduction in the risk of IgG4-RD flare compared to placebo. All key secondary endpoints were also met, which were annualized flare rate; flare-free, treatment-free complete remission; and flare-free, corticosteroid-free complete remission, it adds. The overall safety results were also consistent with the therapy’s known safety profile.

Amgen describes IgG4-RD as a chronic, systemic, immune-mediated, fibroinflammatory disease that can affect almost any organ in the body, often involving multiple organs at a time, and can result in irreversible organ damage.

Based on MITIGATE’s data, Amgen says it plans to seek FDA approval for Uplizna’s use in IgG4-RD.

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