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Successful treatment with efgartigimod as an add-on therapy for acute attack of anti-NMDA receptor encephalitis: a case report.
BMC Neurol
January 2025
Department of Neurology, Liuzhou People's Hospital affiliated to Guangxi Medical University, No.8 Rd.wenchang Liuzhou, Liuzhou, 545000, Guangxi Province, China.
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.
View Article and Find Full Text PDFApplication of efgartigimod in Chinese patients with myasthenia gravis: a single-center real-world prospective study.
Ther Adv Neurol Disord
January 2025
Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China.
Background: China has a large number of myasthenia gravis (MG) patients, creating an urgent need for rapid and tolerable treatment options. As the first-approved Fc receptor antagonist, efgartigimod has bright prospects for treating MG. However, real-world evidence on its application within the Chinese MG population are limited.
View Article and Find Full Text PDFEfgartigimod treatment for therapy-refractory autoimmune encephalitis with coexistent NMDAR and LGI1 antibodies: a case report and literature review.
Neurol Sci
January 2025
Department of Neurology, Tongji Medical College, Union Hospital, Huazhong University of Science and Technology, Wuhan, China.
The Fc receptor (FcRn) inhibitors can ameliorate autoimmune conditions such as myasthenia gravis through a rapid and specific clearance of serum IgG levels, and they also have potential for future use in a wider variety of antibody-mediated autoimmune diseases. Some patients with therapy-refractory autoimmune encephalitis (AE) continue to be unresponsive to initial and secondary treatment regimens. A 32-year-old male presented with predominant psychiatric symptoms and seizures, along with imaging evidence indicating multifocal cerebral cortical involvement.
View Article and Find Full Text PDFFirst line treatment with subcutaneous efgartigimod in impending myasthenic crisis: a case report.
Ther Adv Neurol Disord
December 2024
Department of Neurology, Faculty of Medicine, University of Augsburg, Stenglinstrasse 2, Augsburg 86156, Germany.
In acetylcholine receptor (AChR) antibody-positive generalized myasthenia gravis (gMG), neonatal Fc-receptor (FcRn) inhibition has broadened the therapeutic spectrum. Myasthenic crisis (MC), heralded by an impending myasthenic crisis (iMC), is a critical condition requiring treatments with rapid onset and sustained efficacy. Currently treatments used for iMC, including intravenous immunoglobulins and plasma exchange/immunoadsorption, have limitations, such as delayed onset of action and potential side effects.
View Article and Find Full Text PDFResolution of acute motor axonal neuropathy in a patient after treatment with efgartigimod: A case report.
Medicine (Baltimore)
December 2024
Department of Neurology, The First Affiliated Hospital, Zhejiang University, Medical School, Hangzhou, China.
Background: Guillain-Barré syndrome (GBS) is an acute autoimmune neuropathy characterized by progressive muscle weakness, often caused by immunoglobulin G (IgG) autoantibodies. There are several subtypes of GBS, of which acute motor axonal neuropathy (AMAN) is one of the most severe subtypes associated with axonal damage. It is well known that the current clinical standard of treatment is intravenous immunoglobulin (IVIg) and plasma exchange (PLEX), but some patients often show limited response or experience persistent disability.
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