Academic Journal

Successful treatment with efgartigimod as an add-on therapy for acute attack of anti-NMDA receptor encephalitis: a case report

التفاصيل البيبلوغرافية
العنوان: Successful treatment with efgartigimod as an add-on therapy for acute attack of anti-NMDA receptor encephalitis: a case report
المؤلفون: Huasheng Huang, Yizhi Wei, Huihui Qin, Guangshun Han, Jie Li
المصدر: BMC Neurology, Vol 25, Iss 1, Pp 1-8 (2025)
بيانات النشر: BMC, 2025.
سنة النشر: 2025
المجموعة: LCC:Neurology. Diseases of the nervous system
مصطلحات موضوعية: Anti-NMDA-receptor antibody encephalitis, Efgartigimod, FcRn inhibitor, IgG, Neurology. Diseases of the nervous system, RC346-429
الوصف: Abstract Background Anti-NMDA receptor encephalitis is an autoimmune, antibody-mediated inflammatory disease of the brain characterized by the presence of IgG antibodies targeting the excitatory N-methyl-D-aspartate receptor (NMDAR). Previous research has established that the neonatal Fc receptor (FcRn) regulates the transport and circulation of immunoglobulins (IgG). Efgartigimod, an FcRn antagonist, has been shown to enhance patient outcomes by promoting IgG clearance, and it has exhibited substantial clinical efficacy and tolerability in the treatment of myasthenia gravis. Efgartigimod has demonstrated potential efficacy in the treatment of various IgG-mediated autoimmune diseases. Nonetheless, to date, no studies have investigated the use of efgartigimod in the treatment of anti-NMDAR encephalitis. Case presentation We present a case of a 42-year-old male patient diagnosed with anti-NMDAR encephalitis, initially treated with intravenous methylprednisolone(IVMP) and human immunoglobulin (IVIG) without clinical improvement. Subsequent administration of efgartigimod resulted in rapid clinical improvement; however, the patient experienced a relapse upon discontinuation of efgartigimod. Reintroduction of efgartigimod led to rapid and significant clinical improvement, accompanied by a marked decrease in anti-NMDAR antibodies and serum IgG levels in both serum and cerebrospinal fluid. The patient remained relapse-free during a 2-month follow-up period. Conclusion This case demonstrates that efgartigimod is a potentially rapid and effective therapy for the treatment of the acute phase of anti-NMDAR encephalitis.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 1471-2377
Relation: https://doaj.org/toc/1471-2377
DOI: 10.1186/s12883-025-04034-6
URL الوصول: https://doaj.org/article/4050fe0f14184476a56d8a3cd9e8403c
رقم الانضمام: edsdoj.4050fe0f14184476a56d8a3cd9e8403c
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:14712377
DOI:10.1186/s12883-025-04034-6