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Case Report: Efficacy of efgartigimod for autonomic dysfunction in patients with autoimmune glial fibrillary acidic protein astrocytopathy: a case series of 3 patients

Ma H, Xie B, Wu Y, Zhou H, Ma F, Huang C, Zheng X

Frontiers in immunology, 2026

Abstract

Introduction: Efgartigimod can rapidly reduce serum IgG antibody levels and decrease antibody-mediated neuroinflammation and damage. It is primarily used to treat autoimmune diseases. Glial fibrillary acidic protein astrocytopathy (GFAP-A) is a disease of the central nervous system characterized by GFAP antibodies. It has a high incidence of autonomic dysfunction in patients and there is currently no effective treatment plan. It is not known whether efgartigimod can improve autonomic dysfunction in GFAP-A.

Case presentation: All three patients with GFAP-A presented with autonomic dysfunction, which manifested as urinary and defecatory disorders. Marked remission of corticosteroid-refractory autonomic dysfunction was observed following combined treatment with efgartigimod and corticosteroids. All three patients presented with autonomic dysfunction. Patient 1 experienced marked improvement in autonomic function after the addition of efgartigimod, despite showing no significant improvement after high-dose pulse steroid therapy. Patient 2 showed no significant improvement after treatment with low-dose steroids, but achieved complete recovery of autonomic dysfunction after efgartigimod treatment. Patient 3 initially received low-dose steroids, with no significant improvement in autonomic dysfunction. After switching to a high dose of steroids combined with efgartigimod, the patient's autonomic dysfunction gradually improved.

Conclusion: We observed that after combined treatment…

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Evidence Hub reads this as a case series, done in people. Its evidence level is 5 of 5 (Very low · case / narrative / animal / in vitro / in silico). Case reports, narrative reviews, and animal, cell or computer-model studies give the weakest evidence for human health.

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