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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="other" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Pediatric Hematology/Oncology and Immunopathology</journal-id><journal-title-group><journal-title xml:lang="en">Pediatric Hematology/Oncology and Immunopathology</journal-title><trans-title-group xml:lang="ru"><trans-title>Вопросы гематологии/онкологии и иммунопатологии в педиатрии</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1726-1708</issn><issn publication-format="electronic">2414-9314</issn><publisher><publisher-name xml:lang="en">Fund Doctors, Innovations, Science for Children</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">772</article-id><article-id pub-id-type="doi">10.24287/1726-1708-2023-22-3-192-198</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>LITERATURE REVIEW</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ОБЗОР ЛИТЕРАТУРЫ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">The efficacy and toxicity of L-asparaginase in the treatment of acute lymphoblastic leukemia in children</article-title><trans-title-group xml:lang="ru"><trans-title>Эффективность и токсичность лекарственных препаратов L-аспарагиназы в лечении острого лимфобластного лейкоза у детей</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0007-2171-1951</contrib-id><name-alternatives><name xml:lang="en"><surname>Smirnova</surname><given-names>D. S.</given-names></name><name xml:lang="ru"><surname>Смирнова</surname><given-names>Д. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Moscow</p></bio><bio xml:lang="ru"><p>Москва</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1469-2365</contrib-id><name-alternatives><name xml:lang="en"><surname>Valiev</surname><given-names>T. T.</given-names></name><name xml:lang="ru"><surname>Валиев</surname><given-names>Т. Т.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Timur Т. Valiev - Dr. Med. |Sci., Head of the Department of Pediatric Oncology and Hematology (Chemotherapy of Hemoblastosis) No. 1 at the N.N. Blokhin NMRC O.</p><p>23 Kashirskoye Highway, Moscow 115522</p></bio><bio xml:lang="ru"><p>Валиев Тимур Теймуразович - доктор медицинских наук, заведующий отделением детской онкологии и гематологии (химиотерапия гемобластозов) №1.</p><p>115522, Москва, Каширское шоссе, 23</p></bio><email>timurvaliev@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">The N.N. Blokhin National Medical Research Center of Oncology оf Ministry of Healthcare of the Russian Federation</institution></aff><aff><institution xml:lang="ru">ФГБУ «Национальный медицинский исследовательский центр онкологии им. Н.Н. Блохина» Минздрава России</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2023-10-03" publication-format="electronic"><day>03</day><month>10</month><year>2023</year></pub-date><volume>22</volume><issue>3</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>192</fpage><lpage>198</lpage><history><date date-type="received" iso-8601-date="2023-10-03"><day>03</day><month>10</month><year>2023</year></date><date date-type="accepted" iso-8601-date="2023-10-03"><day>03</day><month>10</month><year>2023</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2023, «D. Rogachev NMRCPHOI»</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2023, ФГБУ «НМИЦ ДГОИ им. Дмитрия Рогачева» Минздрава России</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="en">«D. Rogachev NMRCPHOI»</copyright-holder><copyright-holder xml:lang="ru">ФГБУ «НМИЦ ДГОИ им. Дмитрия Рогачева» Минздрава России</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://hemoncim.com/jour/article/view/772">https://hemoncim.com/jour/article/view/772</self-uri><abstract xml:lang="en"><p>L-asparaginase, an enzyme used as an anticancer drug, was one of the first drugs included in the treatment protocols for acute lymphoblastic leukemia. It has become widely used when an important metabolic feature of leukemia cells – their high demand for asparagine to maintain viability – was discovered. Three L-asparaginase preparations are currently used in clinical practice: native E. coli asparaginase, pegylated E. coli asparaginase (PEG-asparaginase), and native E. chrysanthemi-derived asparaginase, which have different half-lives, immunogenic profiles, and the spectrum and frequency of toxic effects. One of the main factors limiting the use of L-asparaginase is its high immunogenicity which can cause acute allergic reactions and the phenomenon of silent inactivation. The development of the immune response leads to an accelerated asparaginase clearance and a shortening of its half-life. To monitor the effectiveness of therapy with L-asparaginase, therapeutic drug monitoring of serum asparaginase activity can be used. When choosing management strategies for patients experiencing acute hypersensitivity reactions to L-asparaginase, the following factors should be taken into consideration: the severity of reaction, the number of previous exposures to L-asparaginase and serum asparaginase activity. The use of PEG-asparaginase is the best first-line treatment strategy for children acute lymphoblastic leukemia, its advantages include a significant reduction in the risk of developing acute allergic reactions, higher therapeutic efficacy and, as a result, improved treatment outcomes.</p></abstract><trans-abstract xml:lang="ru"><p>L-аспарагиназа – противоопухолевый препарат класса ферментов, который одним из первых вошел в протоколы программного лечения острого лимфобластного лейкоза. Он получил широкое распространение благодаря открытию важной особенности метаболизма лейкемических клеток, заключающейся в их высокой потребности в аспарагине для поддержания жизнедеятельности. В клинической практике применяют 3 препарата L-аспарагиназы – нативная E. coli-аспарагиназа, пегилированная E. coli-аспарагиназа (ПЭГ-аспарагиназа) и нативная E. chrysanthemi-аспарагиназа, отличающиеся между собой периодом полувыведения, иммуногенным профилем, спектром и частотой развития токсических эффектов. Одним из основных факторов, ограничивающих применение L-аспарагиназы, является ее высокая иммуногенность, которая обусловливает развитие острых аллергических реакций и феномена скрытой инактивации. Развитие иммунного ответа организма приводит к ускорению клиренса лекарственного препарата и укорочению его периода полувыведения. Контроль эффективности терапии L-аспарагиназой может быть осуществлен благодаря терапевтическому лекарственному мониторингу. Решение вопроса о клинической тактике в случае развития острой реакции гиперчувствительности в ответ на введение препаратов L-аспарагиназы основано на степени тяжести реакции, данных о числе введений у пациента в анамнезе и лабораторном определении активности L-аспарагиназы. Преимущество использования ПЭГ-аспарагиназы в качестве первой линии терапии острого лимфобластного лейкоза у детей обусловлено значительным снижением риска развития острых аллергических реакций, повышением эффективности терапии и, как следствие, улучшением результатов лечения.</p></trans-abstract><kwd-group xml:lang="en"><kwd>L-asparaginase</kwd><kwd>pegylated asparaginase</kwd><kwd>acute lymphoblastic leukemia</kwd><kwd>therapeutic drug monitoring</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>L-аспарагиназа</kwd><kwd>пегилированнаяаспарагиназа</kwd><kwd>острыйлимфобластныйлейкоз</kwd><kwd>терапевтическийлекарственныймониторинг</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Не указан</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">1. Sallan S.E., Gelber R.D., Kimball V., Donnelly M., Cohen H.J. More is better! 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