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      Eculizumab during Pregnancy in a Patient with Treatment-Refractory Myasthenia Gravis: A Case Report

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          Abstract

          The recombinant humanized monoclonal antibody eculizumab has been shown to be effective and well tolerated in patients with anti-acetylcholine receptor antibody-positive, treatment-refractory generalized myasthenia gravis (gMG). Myasthenia gravis (MG) often affects women of child-bearing potential. However, management can be challenging during pregnancy, and current treatment options are limited due to potential teratogenicity. Data are currently lacking on the use of eculizumab in pregnant women with gMG. This case report describes a successful pregnancy in a young woman with treatment-refractory gMG treated with eculizumab before, during, and after pregnancy. Eculizumab appeared to have a favorable benefit-risk profile in this setting, with no treatment-related adverse effects noted in either the patient or the neonate. The patient remains neurologically stable on eculizumab, which she has now been receiving for 5 years. This first report of the use of eculizumab during pregnancy in a patient with treatment-refractory gMG suggests a potential role for eculizumab in this setting, although further clinical experience is necessary to support its use during pregnancy in women with MG.

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          Most cited references 16

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          Eculizumab in Pregnant Patients with Paroxysmal Nocturnal Hemoglobinuria

          Eculizumab, a humanized monoclonal antibody against complement protein C5 that inhibits terminal complement activation, has been shown to prevent complications of paroxysmal nocturnal hemoglobinuria (PNH) and improve quality of life and overall survival, but data on the use of eculizumab in women during pregnancy are scarce.
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            International consensus guidance for management of myasthenia gravis

            Objective: To develop formal consensus-based guidance for the management of myasthenia gravis (MG). Methods: In October 2013, the Myasthenia Gravis Foundation of America appointed a Task Force to develop treatment guidance for MG, and a panel of 15 international experts was convened. The RAND/UCLA appropriateness methodology was used to develop consensus guidance statements. Definitions were developed for goals of treatment, minimal manifestations, remission, ocular MG, impending crisis, crisis, and refractory MG. An in-person panel meeting then determined 7 treatment topics to be addressed. Initial guidance statements were developed from literature summaries. Three rounds of anonymous e-mail votes were used to attain consensus on guidance statements modified on the basis of panel input. Results: Guidance statements were developed for symptomatic and immunosuppressive treatments, IV immunoglobulin and plasma exchange, management of impending and manifest myasthenic crisis, thymectomy, juvenile MG, MG associated with antibodies to muscle-specific tyrosine kinase, and MG in pregnancy. Conclusion: This is an international formal consensus of MG experts intended to be a guide for clinicians caring for patients with MG worldwide.
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              Pregnancy outcome after first trimester exposure to corticosteroids: a prospective controlled study.

              To evaluate the safety of glucocorticosteroids (GCS) in pregnancy.
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                Author and article information

                Journal
                CRN
                CRN
                10.1159/issn.1662-680X
                Case Reports in Neurology
                S. Karger AG
                1662-680X
                2021
                January - April 2021
                01 February 2021
                : 13
                : 1
                : 65-72
                Affiliations
                Department of Neurology, University of South Florida, Tampa, Florida, USA
                Author notes
                *Tuan Vu, Department of Neurology, University of South Florida, 13220 USF Laurel Dr., Tampa, FL 33612 (USA), tvu6@usf.edu
                Article
                511957 PMC7923701 Case Rep Neurol 2021;13:65–71
                10.1159/000511957
                PMC7923701
                33708096
                © 2021 The Author(s). Published by S. Karger AG, Basel

                This article is licensed under the Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC). Usage and distribution for commercial purposes requires written permission. Drug Dosage: The authors and the publisher have exerted every effort to ensure that drug selection and dosage set forth in this text are in accord with current recommendations and practice at the time of publication. However, in view of ongoing research, changes in government regulations, and the constant flow of information relating to drug therapy and drug reactions, the reader is urged to check the package insert for each drug for any changes in indications and dosage and for added warnings and precautions. This is particularly important when the recommended agent is a new and/or infrequently employed drug. Disclaimer: The statements, opinions and data contained in this publication are solely those of the individual authors and contributors and not of the publishers and the editor(s). The appearance of advertisements or/and product references in the publication is not a warranty, endorsement, or approval of the products or services advertised or of their effectiveness, quality or safety. The publisher and the editor(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements.

                Page count
                Tables: 1, Pages: 8
                Categories
                Single Case – General Neurology

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