ArticleNeurology and therapy2026
Efgartigimod in Patients with Generalized Myasthenia Gravis Refractory or Intolerant to IVIg.
Article in Neurology and therapy, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
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11 authors.
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Abstract
introductionGeneralized myasthenia gravis (gMG) is a rare chronic autoimmune disorder of the neuromuscular junction caused by pathogenic autoantibodies directed against a postsynaptic target. The therapeutic landscape of gMG has recently expanded with the introduction of FcRn inhibitors. This study aimed to assess the real-world effectiveness and safety of efgartigimod (EFG) in AChR-positive gMG patients who failed or were intolerant to intravenous immunoglobulin (IVIg).
methodsEFG was administered as four consecutive weekly intravenous infusions at 10 mg/kg. Treatment efficacy was evaluated using the Myasthenia Gravis Activity of Daily Living (MG-ADL) and Myasthenia Gravis quantitative (QMG) scales at baseline and after 4 weeks. Incidence of adverse events and prednisone use were collected at each time point.
resultsThirteen patients (6 women and 7 men, mean age 52.9 years) received EFG following IVIg therapy. After one treatment cycle, both MG-ADL and QMG scores showed significant clinical improvement. MG-ADL responder rate (MG-ADL reduction > 2) was 84.6% while 69.2% on QMG (QMG reduction > 3). Minimal symptom expression was reached in one patient, accompanied by a mean reduction in daily prednisone dose of 6.9 mg.
conclusionIn this real-world cohort, efgartigimod demonstrated a rapid and meaningful clinical benefit with a favorable tolerability profile in patients with AChR-positive gMG after IVIg failure or intolerance. These findings support the potential role of EFG as an effective therapeutic option in this difficult-to-treat population.
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