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Oral Factor D Inhibition Falls Short in AChR-Positive Generalized Myasthenia Gravis: What the Vemircopan Phase 2 Trial Means for Complement-Targeted Therapy

MedXY Editorial Team•May 7, 2026•Allergy & Immunology
complement inhibitionfactor Dgeneralized myasthenia gravisvemircopan

Highlights

In this phase 2, double-blind randomized clinical trial, oral vemircopan, a selective factor D inhibitor, did not outperform placebo in acetylcholine receptor antibody-positive generalized myasthenia gravis.

The primary responder endpoint was numerically similar across groups: 64% with placebo, 57% with vemircopan 180 mg twice daily, and 57% with vemircopan 120 mg twice daily.

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This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication.

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