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<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="review-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Annals of Clinical and Experimental Neurology</journal-id><journal-title-group><journal-title xml:lang="en">Annals of Clinical and Experimental Neurology</journal-title><trans-title-group xml:lang="ru"><trans-title>Анналы клинической и экспериментальной неврологии</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2075-5473</issn><issn publication-format="electronic">2409-2533</issn><publisher><publisher-name xml:lang="en">Eco-Vector</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">863</article-id><article-id pub-id-type="doi">10.54101/ACEN.2022.2.8</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Reviews</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Обзоры</subject></subj-group><subj-group subj-group-type="article-type"><subject>Review Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Safety of pathogenetic therapy for multiple sclerosis during the COVID-19 pandemic</article-title><trans-title-group xml:lang="ru"><trans-title>Безопасность патогенетической терапии рассеянного склероза в период пандемии COVID-19</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9648-5492</contrib-id><name-alternatives><name xml:lang="en"><surname>Petrov</surname><given-names>Andrey M.</given-names></name><name xml:lang="ru"><surname>Петров</surname><given-names>Андрей Михайлович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Cand. Sci. (Med.), senior researcher, laboratory of neuroimmunology</p></bio><bio xml:lang="ru"><p>к.м.н., с.н.с. лаб. нейроиммунологии</p></bio><email>sid@ihb.spb.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0728-8903</contrib-id><name-alternatives><name xml:lang="en"><surname>Votintseva</surname><given-names>Marina V.</given-names></name><name xml:lang="ru"><surname>Вотинцева</surname><given-names>Марина Владимировна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>junior researcher, Laboratory of neuroimmunology</p></bio><bio xml:lang="ru"><p>м.н.с. лаб. нейроиммунологии</p></bio><email>sid@ihb.spb.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8154-9107</contrib-id><name-alternatives><name xml:lang="en"><surname>Stolyarov</surname><given-names>Igor D.</given-names></name><name xml:lang="ru"><surname>Столяров</surname><given-names>Игорь Дмитриевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>D. Sci. (Med.), Prof., Head, Laboratory of neuroimmunology and MS center</p></bio><bio xml:lang="ru"><p>д.м.н., проф., зав. лаб. нейроиммунологии, руководитель Центра РС</p></bio><email>sid@ihb.spb.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">N.P. Beсhtereva Institute of Human Brain of the Russian Academy of Sciences</institution></aff><aff><institution xml:lang="ru">ФГБУН «Институт мозга человека им. Н.П. Бехтеревой Российской академии наук»</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2022-06-30" publication-format="electronic"><day>30</day><month>06</month><year>2022</year></pub-date><volume>16</volume><issue>2</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>70</fpage><lpage>77</lpage><history><date date-type="received" iso-8601-date="2022-06-30"><day>30</day><month>06</month><year>2022</year></date><date date-type="accepted" iso-8601-date="2022-06-30"><day>30</day><month>06</month><year>2022</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2022, Petrov A.M., Votintseva M.V., Stolyarov I.D.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2022, Петров А.М., Вотинцева М.В., Столяров И.Д.</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="en">Petrov A.M., Votintseva M.V., Stolyarov I.D.</copyright-holder><copyright-holder xml:lang="ru">Петров А.М., Вотинцева М.В., Столяров И.Д.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://annaly-nevrologii.com/pathID/article/view/863">https://annaly-nevrologii.com/pathID/article/view/863</self-uri><abstract xml:lang="en"><p>The safety of pathogenetic therapy for multiple sclerosis (MS) is a crucial aspect of the therapeutic strategy during the COVID-19 pandemic.</p> <p>Based on our own data, obtained during the study of MS pathogenesis and safety analysis of MS disease-modifying therapies (DMTs), we hereby suggest a classification of DMTs side effects, based on their type, development, and direction of action. There is a need to thoroughly analyse adverse events caused by pathogenetic therapy, with a balanced assessment of the direct vs. adverse effects of immunosuppressive drugs.</p> <p>Based on available literature, in the article, data on the effect of DMTs with various mechanisms of action on severe coronavirus infection are systematized.</p> <p>Interferon-β and glatiramer acetate are the safest drugs to use during the COVID-19 pandemic. Teriflunomide, dimethyl fumarate, natalizumab, ocrelizumab, fingolimod, alemtuzumab, and cladribine should be used with caution. Drugs with a minor systemic immunosuppressant effect (e.g. natalizumab) and selective immunosuppressants (e.g. ocrelizumab) are safer than drugs that cause non-selective depletion of T and B cells.</p> <p>It must be stressed that the risk of MS exacerbation and progression due to untimely prescription or cessation of pathogenetic therapy can significantly exceed the potential risk of COVID-19.</p> <p>Long-term safety monitoring is required for DMTs during the COVID-19 pandemic and when the epidemiological situation stabilizes.</p></abstract><trans-abstract xml:lang="ru"><p>Безопасность патогенетической терапии рассеянного склероза (РС) является важнейшим компонентом, определяющим терапевтическую стратегию в период пандемии COVID-19.</p> <p>На основании собственных данных, полученных при исследовании патогенеза РС и анализа безопасности применения препаратов, изменяющих его течение (ПИТРС), предложена классификация побочных эффектов ПИТРС по динамике развития, типу и направленности действия. Отмечается необходимость тщательного анализа нежелательных явлений, возникающих при применении патогенетической терапии, сбалансированной оценки прямого и побочного эффекта иммуносупрессорных препаратов.</p> <p>На основе имеющихся публикаций в статье систематизированы сведения по влиянию ПИТРС с различными механизмами действия на риск развития тяжёлого течения коронавирусной инфекции.</p> <p>Препараты интерферона-β и глатирамера ацетат являются наиболее безопасными для применения в условиях пандемии COVID-19. С определённой осторожностью рекомендуется применять терифлуномид, диметилфумарат, натализумаб, окрелизумаб, финголимод, алемтузумаб, кладрибин. Препараты с незначительным системным иммуносупрессорным действием (например, натализумаб) и иммуносупрессоры селективного действия (например, окрелизумаб), являются более безопасными, чем препараты, вызывающие неселективную деплецию Т- и В-лимфоцитов.</p> <p>Необходимо подчеркнуть, что риск развития обострений и прогрессирования РС от несвоевременного назначения или прекращения патогенетической терапии может значительно превысить потенциальный риск COVID-19.</p> <p>Требуется долговременный мониторинг безопасности применения ПИТРС в период пандемии COVID-19 и в условиях стабилизации эпидемиологической ситуации.</p></trans-abstract><kwd-group xml:lang="en"><kwd>multiple sclerosis</kwd><kwd>safety of pathogenetic therapy</kwd><kwd>COVID-19 pandemic</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>рассеянный склероз</kwd><kwd>безопасность патогенетической терапии</kwd><kwd>пандемия COVID-19</kwd></kwd-group><funding-group><funding-statement xml:lang="en">The research was carried out within the state assignment of the RF Ministry of Science and Higher Education (theme «Study of the physiological basis of the organization and course of pathological processes in the human brain»).</funding-statement><funding-statement xml:lang="ru">Работа выполнена в рамках государственного задания Министерства науки и высшего образования РФ (тема «Изучение физиологических основ организации и протекания патологических процессов в мозге человека»).</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Столяров И.Д., Петров А.М., Вотинцева М.В., Ивашкова Е.В. 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