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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">vedomostiregmed</journal-id><journal-title-group><journal-title xml:lang="ru">Регуляторные исследования и экспертиза лекарственных средств</journal-title><trans-title-group xml:lang="en"><trans-title>Regulatory Research and Medicine Evaluation</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">3034-3062</issn><issn pub-type="epub">3034-3453</issn><publisher><publisher-name>Federal State Budgetary Institution ‘Scientific Centre for Expert Evaluation of Medicinal Products’ of the Ministry of Health of the Russian Federation (FSBI ‘SCEEMP’)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.30895/1991-2919-2021-11-4-228-238</article-id><article-id custom-type="elpub" pub-id-type="custom">vedomostiregmed-380</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>ОБЗОРЫ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>REVIEWS</subject></subj-group></article-categories><title-group><article-title>Современные подходы к подтверждению терапевтической эквивалентности лекарственных препаратов локального действия в желудочно-кишечном тракте</article-title><trans-title-group xml:lang="en"><trans-title>Current Approaches to Demonstration of Therapeutic Equivalence of Locally-Acting Gastrointestinal Drugs</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6433-9781</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Горбунова</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Gorbunova</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Горбунова Екатерина Владимировна</p><p>Петровский б-р, д. 8, стр. 2, Москва, 127051</p></bio><bio xml:lang="en"><p>Ekaterina V. Gorbunova</p><p>8/2 Petrovsky Blvd, Moscow 127051</p></bio><email xlink:type="simple">gorbunova@expmed.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/0000-0001-8583-2372</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Горячев</surname><given-names>Д. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Goryachev</surname><given-names>D. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Горячев Дмитрий Владимирович, доктор медицинских наук</p><p>Петровский б-р, д. 8, стр. 2, Москва, 127051</p></bio><bio xml:lang="en"><p>Dmitry V. Goryachev, Dr. Sci. (Med.)</p><p>8/2 Petrovsky Blvd, Moscow 127051</p></bio><email xlink:type="simple">gorachev@expmed.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/0000-0002-5430-6975</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Горская</surname><given-names>Т. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Gorskaya</surname><given-names>T. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Горская Татьяна Евгеньевна</p><p>Петровский б-р, д. 8, стр. 2, Москва, 127051</p><p> </p></bio><bio xml:lang="en"><p>Tatiana E. Gorskaya</p><p>8/2 Petrovsky Blvd, Moscow 127051</p></bio><email xlink:type="simple">gorskayate@expmed.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/0000-0002-8930-4689</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Богданов</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Bogdanov</surname><given-names>A. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Богданов Александр Николаевич, доктор медицинских наук</p><p>Петровский б-р, д. 8, стр. 2, Москва, 127051</p></bio><bio xml:lang="en"><p>Aleksandr N. Bogdanov, Dr. Sci. (Med.)</p><p>8/2 Petrovsky Blvd, Moscow 127051</p></bio><email xlink:type="simple">bogdanov@expmed.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное учреждение «Научный центр экспертизы средств медицинского применения» Министерства здравоохранения Российской Федерации</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Scientific Centre for Expert Evaluation of Medicinal Products</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>15</day><month>11</month><year>2021</year></pub-date><volume>11</volume><issue>4</issue><fpage>228</fpage><lpage>238</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Горбунова Е.В., Горячев Д.В., Горская Т.Е., Богданов А.Н., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Горбунова Е.В., Горячев Д.В., Горская Т.Е., Богданов А.Н.</copyright-holder><copyright-holder xml:lang="en">Gorbunova E.V., Goryachev D.V., Gorskaya T.E., Bogdanov A.N.</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.vedomostincesmp.ru/jour/article/view/380">https://www.vedomostincesmp.ru/jour/article/view/380</self-uri><abstract><p>Развитие знаний об особенностях фармакокинетики и фармакодинамики лекарственных препаратов, действующих локально, увеличение количества разрабатываемых и воспроизведенных препаратов стало основанием для разработки новых научных подходов к выбору методик организации и проведения исследований терапевтической эквивалентности лекарственных препаратов, действующих локально в желудочно-кишечном тракте (ЛЖК-препараты). На сегодняшний день обновлены многие международные рекомендации по планированию и проведению исследований биоэквивалентности (БЭ) ЛЖК-препаратов, в Российской Федерации и Евразийском экономическом союзе (ЕАЭС) подобные рекомендации отсутствуют. Таким образом, создание единых методологических подходов к планированию клинических исследований подобных препаратов, проводимых на территории ЕАЭС, является актуальным. Цель работы — анализ зарубежных подходов к планированию, проведению и экспертной оценке исследований терапевтической эквивалентности ЛЖК-препаратов. Проведен анализ руководств Европейского агентства по лекарственным средствам и Управления по контролю за качеством продуктов питания и лекарственных средств США по планированию, проведению и оценке исследований биоэквивалентности ЛЖК-препаратов. Сделан вывод о вытеснении клинических исследований при выборе метода исследования БЭ экспериментальными подходами, обеспечивающими чувствительную и точную оценку различий тестируемого ЛЖК-препарата и референтного препарата in vitro с применением индивидуального подхода с учетом механизма действия, лекарственной формы и места действия. Приведены примеры процедур исследований препаратов, имеющих сложный биофармацевтический профиль и демонстрирующих сложности при проведении исследований их биоэквивалентности, большое внимание уделено исследованиям препаратов месалазина. Результаты проведенного анализа могут служить основой создания единого методологического подхода к организации и проведению исследований терапевтической эквивалентности ЛЖК-препаратов в Российской Федерации и ЕАЭС.</p></abstract><trans-abstract xml:lang="en"><p>Evolution of knowledge about pharmacokinetics and pharmacodynamics of locally acting products, and an increase in the number of generics and medicines under development have laid the ground for the development of new scientific approaches to planning and conducting of therapeutic equivalence studies of medicinal products acting locally in the gastrointestinal (GI) tract. To date, many international guidelines on planning and conducting of bioequivalence (BE) studies of locally acting GI products have been updated, however, there are still no such guidelines in the Russian Federation and the Eurasian Economic Union (EAEU). Therefore, elaboration of common methodological approaches to the planning of clinical studies of these products is of particular relevance for the EAEU. The aim of the study was to analyse foreign approaches to planning, conducting, and evaluation of therapeutic equivalence studies of locally acting GI products. The paper analyses the guidelines of the European Medicines Agency and the US Food and Drug Administration on the planning, conduct, and evaluation of BE studies of locally acting GI products. The analysis demonstrated that BE clinical trials are giving way to in vitro studies providing a sensitive and accurate assessment of the differences between a locally acting GI product and the reference product, based on careful consideration of the medicine’s mechanism of action, dosage form, and site of action. The paper gives examples of test methods applied to medicinal products with a complex biopharmaceutical profile whose bioequivalence assessment is challenging, with a special focus on mesalazine products. The results of the analysis may be used for elaboration of a harmonised methodological approach to planning and conducting therapeutic equivalence studies of locally acting GI products in the Russian Federation and EAEU.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>клиническое исследование</kwd><kwd>регистрация лекарственных средств</kwd><kwd>локально действующие лекарственные препараты в желудочно-кишечном тракте</kwd><kwd>месалазин</kwd><kwd>биоэквивалентность</kwd><kwd>терапевтическая эквивалентность</kwd><kwd>референтный препарат</kwd><kwd>in vitro</kwd><kwd>тест кинетики растворения</kwd></kwd-group><kwd-group xml:lang="en"><kwd>clinical study</kwd><kwd>medicinal product authorisation</kwd><kwd>locally acting gastrointestinal products</kwd><kwd>mesalazine</kwd><kwd>bioequivalence</kwd><kwd>therapeutic equivalence</kwd><kwd>reference product</kwd><kwd>in vitro</kwd><kwd>dissolution kinetics test</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках государственного задания ФГБУ «НЦЭСМП» Минздрава России № 056-00005-21-00 на проведение прикладных научных исследований (номер государственного учета НИР 121021800098-4).</funding-statement><funding-statement xml:lang="en">The study reported in this publication was carried out as part of a publicly funded research project No. 056-00005-21-00 and was supported by the Scientific Centre for Expert Evaluation of Medicinal Products (R&amp;D public accounting No. 121021800098-4).</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">Vetchy D, Frybortova K, Rabiskova M, Daneckova H. 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