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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="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">clinmed</journal-id><journal-title-group><journal-title xml:lang="ru">Клиническая медицина</journal-title><trans-title-group xml:lang="en"><trans-title>Clinical Medicine (Russian Journal)</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0023-2149</issn><issn pub-type="epub">2412-1339</issn><publisher><publisher-name>ООО «Медицинское информационное агентство»</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.30629/0023-2149-2024-102-11-12-901-907</article-id><article-id custom-type="elpub" pub-id-type="custom">clinmed-994</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="ru"><subject>ОРИГИНАЛЬНЫЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL INVESTIGATIONS</subject></subj-group></article-categories><title-group><article-title>Эффективность программ экстракорпорального оплодотворения в зависимости от типа овариального ответа на стимуляцию</article-title><trans-title-group xml:lang="en"><trans-title>The effectiveness of in vitro fertilization programs depending on the type of ovarian response to stimulation</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3865-8276</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Острина</surname><given-names>С. Я.</given-names></name><name name-style="western" xml:lang="en"><surname>Ostrina</surname><given-names>S. Ya.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Острина Сабина Ярославовна —врач акушер-гинеколог, аспирант кафедры акушерства, гинекологии и перинатологии</p><p>Москва</p></bio><bio xml:lang="en"><p>Sabina Ya. Ostrina — obstetrician-gynecologist, postgraduate student of the Department of Obstetrics, Gynecology and Perinatology</p><p>Moscow</p></bio><email xlink:type="simple">s.ostrina@yandex.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/0000-0003-0057-5114</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Серова</surname><given-names>О. Ф.</given-names></name><name name-style="western" xml:lang="en"><surname>Serova</surname><given-names>O. F.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Серова Ольга Федоровна — д-р мед. наук, профессор, заведующая кафедрой акушерства, гинекологии и перинатологии</p><p>Москва</p></bio><bio xml:lang="en"><p>Olga F. Serova — Doctor of Medical Sciences, Professor, Head of the Department of Obstetrics, Gynecology and Perinatology</p><p>Moscow</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/0000-0001-5387-2804</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Рудакова</surname><given-names>Е. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Rudakova</surname><given-names>E. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Рудакова Елена Борисовна — д-р мед. наук, профессор кафедры акушерства, гинекологии и перинатологии</p><p>Москва</p></bio><bio xml:lang="en"><p>Elena B. Rudakova — Doctor of Medical Sciences, Professor of the Department of Obstetrics, Gynecology and Perinatology</p><p>Moscow</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/0000-0003-0820-4182</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Федорова</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Fedorova</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Федорова Елена Алексеевна — врач акушер-гинеколог отделения вспомогательных репродуктивных технологий</p><p>Москва</p></bio><bio xml:lang="en"><p>Elena A.Fedorova — obstetrician-gynecologist of the department of assisted reproductive technologies of the State Budgetary Healthcare Institution of the Moscow Region «Moscow Regional Center of Reproductive Technologies»</p><p>Moscow</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБУ «Государственный научный центр – Федеральный медицинский биофизический центр им. А.И. Бурназяна ФМБА России»; ГБУЗ МО «Московский областной перинатальный центр»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>State Research Center − Burnasyan Federal Medical Biophysical Center of Federal Medical Biological Agency; Moscow Regional Perinatal Center</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ГБУЗ МО «Московский областной перинатальный центр»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Moscow Regional Perinatal Center</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>11</day><month>03</month><year>2025</year></pub-date><volume>102</volume><issue>11-12</issue><fpage>901</fpage><lpage>907</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Острина С.Я., Серова О.Ф., Рудакова Е.Б., Федорова Е.А., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Острина С.Я., Серова О.Ф., Рудакова Е.Б., Федорова Е.А.</copyright-holder><copyright-holder xml:lang="en">Ostrina S.Y., Serova O.F., Rudakova E.B., Fedorova E.A.</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://www.clinmedjournal.com/jour/article/view/994">https://www.clinmedjournal.com/jour/article/view/994</self-uri><abstract><p>В работе выделены основные группы пациенток программ экстракорпорального оплодотворения (ЭКО). Дана характеристика непрогнозируемого (парадоксального) ответа и его ассоциация с полиморфизмом гена FSHR. Представлена сравнительная характеристика протоколов овариальной стимуляции (ОС) с оригинальным фоллитропином альфа и его отечественным биоаналогом.</p><sec><title>Цель исследования</title><p>Цель исследования: повысить эффективность программ ЭКО у пациенток основных групп с непрогнозируемым ответом путем разработки дифференцированного подхода к ОС.</p></sec><sec><title>Материал и методы</title><p>Материал и методы. На 1-м этапе изучено 920 историй болезней; на 2-м — выбраны 197 пациенток с непрогнозируемым ответом и оценена его ассоциация с полиморфизмом гена FSHR; на 3-м — у 22 пациенток применен разработанный в ходе исследования алгоритм дифференцированного подхода к ОС.</p></sec><sec><title>Результаты</title><p>Результаты. Выделенные основные группы отличаются возрастом, эффективностью и количеством применяемых гонадотропинов. Частота непрогнозируемого ответа составила 42,8%. При сравнении оригинального фоллитропина альфа и его отечественного биоаналога эффективность составила 36,46 и 40,59% (p = 0,0511), соответственно. Генотип G/А полиморфизма гена FSHR ассоциирован с нормальным ответом; генотип А/А — с бедным ответом; генотип G/G — с гиперергическим ответом (p &lt; 0,0001). Частота повторного непрогнозируемого ответа составила 21,3%, эффективность на цикл — 39,1% по результатам использования алгоритма.</p></sec><sec><title>Заключение</title><p>Заключение. Выделены три основные группы пациенток программ ЭКО для расчета требуемых доз гонадотропинов. Непрогнозируемый ОТ снижает эффективность программ ЭКО на 8,5%. Полиморфизм гена FSHR — значимый предиктор повторного непрогнозируемого ответа. Разработанный алгоритм дифференцированного подхода к ОС позволяет повысить эффективность программ ЭКО.</p></sec></abstract><trans-abstract xml:lang="en"><p>The paper identiﬁes the main groups of patients in vitro fertilization (IVF) programs. The characterization of the unexpected (paradoxical) response and its association with the polymorphism of the FSHR gene is given. A comparative characteristic of СOS protocols with the original follitropin alpha and its domestic biosimilar is presented.</p><p>The aim of the study is to increase the eﬀectiveness of IVF programs in patients with an unexpected response by developing a diﬀerentiated approach to ovarian stimulation.</p><sec><title>Material and methods</title><p>Material and methods. At the 1st stage, 920 case histories were studied; at the 2nd, 197 patients were included — a characteristic of patients with an unexpected response and its association with FSHR gene polymorphism was given; at the 3rd, an algorithm for a diﬀerentiated approach to СOS was tested in 22 patients.</p></sec><sec><title>Results</title><p>Results. The main groups diﬀer in age, eﬃcacy, and the amount of gonadotropins. The frequency of the unexpected response was 42.8%. When comparing the original follitropin alpha and its domestic biosimilar, the eﬀectiveness was 36.46 and 40.59% (p = 0.0511), respectively. Genotype G/A of the FSHR gene polymorphism is associated with a normal response; genotype A/A with a poor response; genotype G/G with a high response (p &lt; 0.0001). The frequency of repeated unexpected response was 21.3%, the eﬃciency per cycle was 39.1% according to the results of testing the algorithm.</p></sec><sec><title>Conclusion</title><p>Conclusion. Three main groups of IVF patients have been identiﬁed to calculate the required doses of gonadotropins. An unexpected ovarian response reduces the eﬀectiveness of IVF programs by 8.5%. Polymorphism of the FSHR gene is a signiﬁcant predictor of a repeated unexpected response. The developed algorithm of the diﬀerentiated approach to the СOS makes it possible to increase the eﬀectiveness of IVF programs.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>экстракорпоральное оплодотворение</kwd><kwd>бесплодие</kwd><kwd>овариальная стимуляция</kwd><kwd>непрогнозируемый (парадоксальный) овариальный ответ</kwd><kwd>полиморфизм гена FSHR</kwd><kwd>фоллитропин альфа</kwd><kwd>биоаналог</kwd><kwd>рекомбинантный фолликулостимулирующий гормон</kwd></kwd-group><kwd-group xml:lang="en"><kwd>in vitro fertilization</kwd><kwd>infertility</kwd><kwd>ovarian stimulation</kwd><kwd>unexpected (paradoxical) ovarian response</kwd><kwd>FSHR gene polymorphism</kwd><kwd>follitropin alpha</kwd><kwd>recombinant follicle stimulating hormone</kwd><kwd>biosimilar</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">Szamatowicz M., Szamatowicz J. 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