ArticleJournal of neurology2026
Rapid efficacy of efgartigimod for generalized myasthenia gravis patients in acute exacerbations/worsening: multicenter real-world retrospective study.
Article in Journal of neurology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
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Who cites it
1 citing paper in PubMed.
- FcRn antagonist and C5 complement inhibitor as early rescue strategies in severe Myasthenia Gravis: a two-case report.Frontiers in immunology · 2026Article
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Authors and funding
11 authors.
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Abstract
BACKGROUND AND
objectivesAcute exacerbations/worsening of generalized myasthenia gravis (gMG) require urgent intervention to prevent progression to life-threatening myasthenic crisis. This multicenter study evaluate the efficacy and safety of efgartigimod in gMG patients experiencing acute exacerbations/worsening to validate its potential as a rapid-acting therapeutic option.
methodsIn this multicenter retrospective study (Jan 2024-Feb 2025), 61 gMG patients with acute exacerbations/worsening received weekly efgartigimod infusions for 4 weeks. Efficacy was assessed at baseline (W0) and weekly throughout the treatment cycle (W1-W7) using Myasthenia Gravis Foundation of America Post-Intervention Status (MGFA-PIS), Quantitative Myasthenia Gravis (QMG), and Myasthenia Gravis Activities of Daily Living (MG-ADL) scores, along with prednisone dosage reductions. Safety assessments were concurrently performed.
resultsMedian age was 56 years (range: 39-68 years). Pulmonary infection (16/61, 26.2%) was the predominant trigger of myasthenic crisis (MC) red flgs. Median duration from symptom deterioration to efgartigimod initiation was 18 days. Clinical meaningful improvement occurred in 81.9% at W1 (post-single dose), 98.1% at W4, and 91.9% at W7. MG-ADL and QMG scores decreased substantially from baseline (W4: 80.86% and 55.81% reduction; W7: 70.78% and 47.76% reduction), Patients with MC red flags achieved comparable outcomes. Greater MG-ADL imrovements were observed in those with thymoma history, severe MGFA classification, prior MC, or MC red flags. No treatment-related allergic reactions, infections, or serious adverse events were observed.
conclusionEfgartigimod demonstrates rapid, significant efficacy in gMG acute exacerbations/worsening, supporting its role as a valuable therapeutic option for this high-risk population.
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