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<article article-type="research-article" dtd-version="1.3" 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" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">nnp</journal-id><journal-title-group><journal-title xml:lang="en">Neurology, Neuropsychiatry, Psychosomatics</journal-title><trans-title-group xml:lang="ru"><trans-title>Неврология, нейропсихиатрия, психосоматика</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2074-2711</issn><issn pub-type="epub">2310-1342</issn><publisher><publisher-name>"IMA-Press", LLC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.14412/2074-2711-2021-4-18-24</article-id><article-id custom-type="elpub" pub-id-type="custom">nnp-1620</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL INVESTIGATIONS</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНЫЕ ИССЛЕДОВАНИЯ И МЕТОДИКИ</subject></subj-group></article-categories><title-group><article-title>Anti-B-cell therapy in patients with neuromyelitis optica spectrum disorders</article-title><trans-title-group xml:lang="ru"><trans-title>Анти-В-клеточная терапия у пациентов с заболеваниями спектра оптиконевромиелита</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Котов</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kotov</surname><given-names>S. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>129110, Москва, ул. Щепкина, 61/2, корп. 1.</p></bio><bio xml:lang="en"><p>61/2, Shchepkin St., Build. 1, Moscow 129110.</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Новикова</surname><given-names>Е. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Novikova</surname><given-names>E. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>129110, Москва, ул. Щепкина, 61/2, корп. 1.</p></bio><bio xml:lang="en"><p>61/2, Shchepkin St., Build. 1, Moscow 129110.</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Котов</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Kotov</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Котов Алексей Сергеевич.</p><p>129110, Москва, ул. Щепкина, 61/2, корп. 1.</p></bio><bio xml:lang="en"><p>Aleksey Sergeevich Kotov.</p><p>61/2, Shchepkin St., Build. 1, Moscow 129110.</p></bio><email xlink:type="simple">alex-013@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Московский областной научно-исследовательский клинический институт им. М.Ф. Владимирского</institution><country>Россия</country></aff><aff xml:lang="en"><institution>M.F. Vladimirsky Moscow Regional Research Clinical Institute</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>13</day><month>08</month><year>2021</year></pub-date><volume>13</volume><issue>4</issue><fpage>18</fpage><lpage>24</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Kotov S.V., Novikova E.S., Kotov A.S., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Котов С.В., Новикова Е.С., Котов А.С.</copyright-holder><copyright-holder xml:lang="en">Kotov S.V., Novikova E.S., Kotov A.S.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://nnp.ima-press.net/nnp/article/view/1620">https://nnp.ima-press.net/nnp/article/view/1620</self-uri><abstract><p>Neuromyelitis optica spectrum disorders (NMOSDs) are a group of central nervous system autoimmune diseases characterized by similar clinical manifestations, optic neuritis, and transverse myelitis being the most frequent among them. In most cases, the pathogenesis of NMOSDs is associated with autoantibodies to aquaporin-4 (AQP4-IgG). However, AQP4-IgG is not detected in at least 10-20% of patients with NMOSDs. In this subgroup and in patients with isolated transverse myelitis or optic neuritis, IgG antibodies to myelin oligodendrocyte glycoprotein (MOG-IgG) were detected. Patients seronegative for both AQP4-IgG and MOG-IgG have also been described.</p><sec><title>Objective</title><p>Objective: to evaluate rituximab (RTX) effectiveness in preventing relapses and disability in patients with NMOSDs.</p></sec><sec><title>Patients and methods</title><p>Patients and methods. The study included 27 patients with NMOSDs (9 men and 18 women) aged 20-51 years who received RTX in 2019-2021. The treatment protocol included intravenous infusions of 1000 mg of RTX on the 1st and 15th days, the second and subsequent courses (maintenance therapy) - intravenous infusions of 1000 mg of RTX once every six months. Treatment effectiveness was assessed by the average annualized relapse rate, the median changes of the Expanded Disability Status Scale (EDSS), and based on the magnetic resonance imaging (MRI) changes.</p></sec><sec><title>Results and discussion</title><p>Results and discussion. The annualized relapse rate at baseline and 18 months after the start of treatment was: all patients (n=27) — 0.6±0.3 and 0.07±0.27(p&lt;0.0001); AQP4-IgG+ patients (n=6) — 1.1±0.9 and 0.17±0.41 (p=0.028); MOG-IgG+ patients (n=14) — 0.4±0.3 and 0.07±0.28(p=0.001); AQP4-IgG-, MOG-IgG-patients (n=7) — 0.8±0.4 and 0.0±0.0 (p=0.018). The EDSSscore at baseline and 18months after the start of treatment was: all patients — 4.5 [3.25; 6.0] and 4.0 [3.0; 5.75] (p=0.679); AQP4-IgG+ — 3.5 [2.625; 4.75] and 3.5 [2.5; 4.5] (p=0.869); MOG-IgG+ - 5.5[3.75; 6.5] and 5.5[2.75; 6.25] (p=0.465); AQP4-IgG-, MOG-IgG- - 4.0[3.75; 5.25] and 3.5[3.0; 3.5] (p=0.043). We observed two clinical relapses during the study period: one in an AQP4-IgG+ male and another one in a MOG-IgG+ woman. There was a significant decrease in the annualized relapse rate in all groups. The disability indicator did not increase during the study period, and in AQP4-IgG and MOG-IgG seronegative patients, it slightly but significantly decreased. Brain and spinal cord MRI monitoring during the treatment period revealed new active foci only in two patients with clinical relapses.</p></sec><sec><title>Conclusion</title><p>Conclusion. RTX treatment in NMOSDs is reasonably efficient and safe, but with the obligatory prior patient evaluation and monitoring of treatment results.</p></sec></abstract><trans-abstract xml:lang="ru"><p>Заболевания спектра оптиконевромиелита (ЗСОНМ; англ. neuromyelitis optica spectrum disorder) — это группа аутоиммунных заболеваний центральной нервной системы, объединенных клиническими проявлениями, среди которых чаще всего наблюдаются неврит зрительного нерва и поперечный миелит. В большинстве случаев патогенез ЗСОНМ связан с аутоантителами к аквапорину-4 (AQP4-IgG). Однако не менее чем у 10—20% пациентов с ЗСОНМ AQP4-IgG не выявляются. У данной подгруппы больных, а также у пациентов с изолированным поперечным миелитом или оптическим невритом выявлялись IgG-антитела к миелиновому олигодендроцитарному гликопротеину (MOG-IgG). Также были описаны пациенты, серонегативные как по AQP4-IgG, так и по MOG-IgG.</p><p>Целью нашего исследования была оценка результатов применения препарата ритуксимаб (РТМ) у больных ЗСОНМ для предупреждения повторных обострений и нарастания инвалидизации.</p><sec><title>Пациенты и методы</title><p>Пациенты и методы. В исследование вошли 27 пациентов с ЗСОНМ (9 мужчин и 18 женщин) в возрасте от 20 лет до 51 года, получавших терапию РТМ в 2019—2021 гг. Протокол лечения предусматривал внутривенные инфузии РТМ по 1000 мг в 1-й и 15-й день, второй и последующие курсы (поддерживающая терапия) — внутривенные инфузии РТМ 1000 мг 1 раз в 6 мес. Эффективность терапии оценивали по среднегодовой частоте обострений, по динамике изменения индекса по расширенной шкале оценки степени инвалидизации (Expanded Disability Status Scale, EDSS), а также на основании динамики результатов магнитно-резонансной томографии (МРТ).</p></sec><sec><title>Результаты и обсуждение</title><p>Результаты и обсуждение. Среднегодовое количество обострений по группам до и через 18 мес после начала лечения составило: все пациенты (n=27) — 0,6±0,3 и 0,07±0,27 (p&lt;0,0001); пациенты AQP4-IgG+ (n=6) — 1,1±0,9 и 0,17±0,41 (p=0,028); пациенты MOG-IgG+ (n=14) - 0,4±0,3и 0,07±0,28(p=0,001);пациентыAQP4-IgG-, MOG-IgG- (n=7) - 0,8±0,4и0,0±0,0(p=0,018). Индекс EDSS по группам до и через 18 мес после начала лечения составил: все пациенты — 4,5[3,25; 6,0] и 4,0 [3,0; 5,75] (p=0,679); AQP4-IgG+- 3,5 [2,625; 4,75] и3,5 [2,5; 4,5] (p=0,869); MOG-IgG+ - 5,5 [3,75; 6,5] и5,5 [2,75; 6,25] (p=0,465); AQP4-IgG-, MOG-IgG- -4,0 [3,75; 5,25] и3,5 [3,0; 3,5] (p=0,043). За период наблюдения были зарегистрированы два клинических обострения: одно - у пациента AQP4-IgG+ и одно – у пациентки MOG-IgG+. В результате отмечено статистически значимое снижение среднегодового числа обострений во всех группах. Показатель инвалидизации за период наблюдения не нарос, а у серонегативных по AQP4-IgG и MOG-IgG пациентов он незначительно, но статистически значимо снизился. Мониторинг МРТ головного и спинного мозга в процессе терапии позволил обнаружить появление новых активных очагов лишь у двух пациентов, у которых были отмечены клинические обострения.</p></sec><sec><title>Заключение</title><p>Заключение. Полученные данные позволяют говорить о достаточной эффективности и безопасности терапии больных ЗСОНМ РТМ, но при обязательном соблюдении полноценного предшествующего терапии обследования и мониторинге результатов терапии.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>оптиконевромиелит</kwd><kwd>заболевания спектра оптиконевромиелита</kwd><kwd>AQP4-IgG</kwd><kwd>MOG-IgG</kwd><kwd>ритуксимаб</kwd></kwd-group><kwd-group xml:lang="en"><kwd>neuromyelitis optica</kwd><kwd>neuromyelitis optica spectrum disorders</kwd><kwd>AQP4-IgG</kwd><kwd>MOG-IgG</kwd><kwd>rituximab</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Jarius S, Wildemann B. The history of neuromyelitis optica. J Neuroinflammation. 2013 Jan 15;10:8. doi: 10.1186/1742-2094-10-8</mixed-citation><mixed-citation xml:lang="en">Jarius S, Wildemann B. The history of neuromyelitis optica. 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