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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">10.14412/2074-2711-2025-1-72-77</article-id><article-id custom-type="elpub" pub-id-type="custom">nnp-2438</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>CLINICAL OBSERVATIONS</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>КЛИНИЧЕСКИЕ НАБЛЮДЕНИЯ</subject></subj-group></article-categories><title-group><article-title>The first experience with the use of ofatumumab for the treatment of pediatric multiple sclerosis in real-life clinical practice in Russia. A case series</article-title><trans-title-group xml:lang="ru"><trans-title>Первый опыт применения офатумумаба для лечения педиатрического рассеянного склероза в реальной российской клинической практике. Серия случаев</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0008-0841-4765</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кузьминых</surname><given-names>Е. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Kuzminykh</surname><given-names>E. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>197022, Санкт-Петербург, ул. акад. Павлова, 9</p></bio><bio xml:lang="en"><p>9, Akademika Pavlova St., St. Petersburg 197022</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3358-5768</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лебедев</surname><given-names>В. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Lebedev</surname><given-names>V. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Валерий Михайлович Лебедев; </p><p>197022, Санкт-Петербург, ул. акад. Павлова, 9</p></bio><bio xml:lang="en"><p>Valery Mikhailovich Lebedev; </p><p>9, Akademika Pavlova St., St. Petersburg 197022</p></bio><email xlink:type="simple">lebedevvaleriy@bk.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0006-4737-3199</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сенченко</surname><given-names>В. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Senchenko</surname><given-names>V. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>197022, Санкт-Петербург, ул. акад. Павлова, 9</p></bio><bio xml:lang="en"><p>9, Akademika Pavlova St., St. Petersburg 197022</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3514-8676</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Черепянский</surname><given-names>М. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Cherepyansky</surname><given-names>M. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>167004, Сыктывкар, ул. Пушкина, 114</p></bio><bio xml:lang="en"><p>114, Pushkina St., Syktyvkar 167004</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5630-6821</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гончар</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Gonchar</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>167004, Сыктывкар, ул. Пушкина, 116/6</p></bio><bio xml:lang="en"><p>166/6, Pushkina St., Syktyvkar 167004</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7938-3782</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Коробко</surname><given-names>Д. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Korobko</surname><given-names>D. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кафедра неврологии;</p><p>630087, Новосибирск, ул. Немировича-Данченко, 130;</p><p>630091, Новосибирск, Красный просп., 52</p></bio><bio xml:lang="en"><p>Department of Neurology;</p><p>130, Nemirovicha-Danchenko St., Novosibirsk 630087;</p><p>52, Krasny Prosp., Novosibirsk 630091</p></bio><xref ref-type="aff" rid="aff-4"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБУН «Институт мозга человека им. Н.П. Бехтеревой Российской академии наук»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>N.P. Bekhterev Institute of the Human Brain of the Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ГБУЗ РК «Коми республиканская клиническая больница»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Komi Reoublican Clinical Hospital</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>ГУ «Республиканская детская клиническая больница»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Republican Children’s Clinical Hospital</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Областной центр рассеянного склероза и других аутоиммунных заболеваний нервной системы ГБУЗ НСО «Государственная Новосибирская областная клиническая больница»; ФГБОУ ВО «Новосибирский государственный медицинский университет» Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Regional Center of Multiple Sclerosis and other Autoimmune Diseases of Nervous system, Novosibirsk State Regional Clinical Hospital; Novosibirsk State Medical University, Ministry of Health of Russia</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>06</day><month>02</month><year>2025</year></pub-date><volume>0</volume><issue>0</issue><issue-title>Online-first</issue-title><elocation-id>2438</elocation-id><permissions><copyright-statement>Copyright &amp;#x00A9; Kuzminykh E.D., Lebedev V.M., Senchenko V.E., Cherepyansky M.S., Gonchar V.A., Korobko D.S., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Кузьминых Е.Д., Лебедев В.М., Сенченко В.Е., Черепянский М.С., Гончар В.А., Коробко Д.С.</copyright-holder><copyright-holder xml:lang="en">Kuzminykh E.D., Lebedev V.M., Senchenko V.E., Cherepyansky M.S., Gonchar V.A., Korobko D.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/2438">https://nnp.ima-press.net/nnp/article/view/2438</self-uri><abstract><p>In recent years, the incidence of multiple sclerosis (MS) has increased in the pediatric population. As there are no separate clinical guidelines for the treatment of pediatric MS and therapeutic options have expanded, it is important to discuss and establish new protocols for the treatment of MS in children and adolescents. This article presents a series of clinical cases of the use of ofatumumab in patients under 18 years of age with a relapsing-remitting MS (RRMS).</p><p>In the first observation, a 16-year-old female patient with RRMS was switched to ofatumumab therapy due to persistent clinical and radiological activity of the disease during dimethyl fumarate therapy. After the first injection, hyperthermia of up to 38.6 °C and cephalgia were observed, which resolved on the background of symptomatic therapy. No adverse events occurred with subsequent injections, and the patient had clinical and radiological remission during the six-month use of the drug.</p><p>In the second observation, a 17-year-old female patient with a four-year history of the disease showed resistance to first-line therapy (interferon β1a and glatiramer acetate), so therapy was switched to ofatumumab. After the first injection, persistent hyperthermia of up to 39.3 °C was observed for two days, therefore, premedication with antipyretic and antihistamine medication was performed for the next two injections. No further adverse events were recorded, the therapy was well tolerated, and premedication was not required. The clinical remission of the disease lasted for six months and the results of the control MRI showed no signs of disease activity.</p><p>In the third observation, ofatumumab therapy was initiated in a 17-year-old patient with rapidly progressive MS. No adverse events were recorded during the 9-month treatment, no signs of the disease activity were detected on the control MRI, and a decrease in the size of some foci was observed.</p><p>Thus, high short-term efficacy, good tolerability and safety of ofatumumab in the treatment of MS in patients under 18 years of age were demonstrated, which are consistent with the results of the use of the drug in the adult population; no unexpected adverse events were observed. The subcutaneous route of administration contributed to improved patients’ adherence to therapy.</p></abstract><trans-abstract xml:lang="ru"><p>В последние годы отмечается увеличение заболеваемости рассеянным склерозом (РС) в детской популяции. В связи с отсутствием отдельных клинических рекомендаций по лечению педиатрического РС, а также с расширением терапевтических возможностей актуально обсуждение и определение новых протоколов лечения РС у пациентов детского и подросткового возраста. В статье представлена серия клинических случаев применения офатумумаба у пациентов младше 18 лет с ремиттирующим типом течения РС (РРС).</p><p>В первом наблюдении пациентка 16 лет с РРС переведена на терапию офатумумабом в связи с сохранявшейся клинической и радиологической активностью заболевания на фоне терапии диметилфумаратом. После первой инъекции отмечались гипертермия до 38,6 °С и цефалгия, с регрессом на фоне симптоматической терапии. При последующих инъекциях побочных эффектов не зарегистрировано, в течение 6 мес применения препарата у пациентки отмечается клинико-радиологическая ремиссия.</p><p>Во втором наблюдении у пациентки 17 лет с четырехлетним стажем заболевания зарегистрирована резистентность к терапии препаратами первой линии (интерферон  β 1а и глатирамера ацетат), в связи с чем произведена смена терапии на офатумумаб. После первой инъекции отмечалась стойкая гипертермия до 39,3 °С в течение двух дней, в связи с чем при последующих двух инъекциях проводилась премедикация антипиретическим и антигистаминным препаратами. В дальнейшем побочных явлений не зарегистрировано, отмечалась хорошая переносимость терапии, проведения премедикации не требовалось. В течение полугода сохраняется клиническая ремиссия заболевания, отмечается отсутствие признаков активности процесса по результатам контрольной МРТ.</p><p>В третьем наблюдении пациенту 17 лет с быстропрогрессирующим типом течения РС инициирована терапия офатумумабом. В течение 9 мес лечения нежелательных явлений не зарегистрировано, на контрольной МРТ признаков активности процесса не выявлено, отмечено уменьшение размеров некоторых очагов.</p><p>Таким образом, продемонстрированы высокая краткосрочная эффективность, хорошая переносимость и безопасность офатумумаба в лечении РС у пациентов младше 18 лет, соответствующие результатам применения препарата во взрослой популяции; непредвиденных нежелательных явлений не наблюдалось. Подкожный способ введения способствовал большей приверженности пациентов терапии.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>офатумумаб</kwd><kwd>педиатрический рассеянный склероз</kwd><kwd>рассеянный склероз</kwd><kwd>анти-CD20 моноклональные антитела</kwd><kwd>анти-CD20-терапия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>ofatumumab</kwd><kwd>pediatric multiple sclerosis</kwd><kwd>multiple sclerosis</kwd><kwd>anti-CD20 monoclonal antibody</kwd><kwd>anti-CD20 therapy</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Статья спонсируется компанией «Новартис».</funding-statement><funding-statement xml:lang="en">The article is sponsored by Novartis.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Ghezzi A. Old and New Strategies in the Treatment of Pediatric Multiple Sclerosis: A Personal View for a New Treatment Approach. 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