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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">10.30895/1991-2919-2024-14-3-317-329</article-id><article-id custom-type="elpub" pub-id-type="custom">vedomostiregmed-603</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>БИОАНАЛИТИЧЕСКИЕ МЕТОДЫ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>BIOANALYTICAL METHODS</subject></subj-group></article-categories><title-group><article-title>Валидация методики оценки биологической активности лекарственного препарата на основе тоцилизумаба и определение критериев приемлемости результатов анализа</article-title><trans-title-group xml:lang="en"><trans-title>Validation of an Analytical Procedure for Evaluating the Biological Activity of a Medicinal Product Based on Tocilizumab and Determination of Acceptance Criteria for Test Results</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0007-9522-2587</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Никонова</surname><given-names>Ю. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Nikonova</surname><given-names>Yu. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Никонова Юлия Александровна</p><p>Владимирская ул., д. 14, пос. Вольгинский, Петушинский р-н, Владимирская обл., 601125</p></bio><bio xml:lang="en"><p>Yulia A. Nikonova</p><p>14 Vladimirskaya St., Volginsky, Petushinskiy District, Vladimir Region 601125</p></bio><email xlink:type="simple">yanikonova@ibcgenerium.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/0000-0001-5841-7587</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Аббасова</surname><given-names>С. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Abbasova</surname><given-names>S. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Аббасова Светлана Георгиевна, д-р биол. наук</p><p>Владимирская ул., д. 14, пос. Вольгинский, Петушинский р-н, Владимирская обл., 601125</p></bio><bio xml:lang="en"><p>Svetlana G. Abbasova, Dr. Sci. (Biol.)</p><p>14 Vladimirskaya St., Volginsky, Petushinskiy District, Vladimir Region 601125</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/0000-0003-4132-5971</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Каргополова</surname><given-names>П. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Kargopolova</surname><given-names>P. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Каргополова Полина Евгеньевна</p><p>Владимирская ул., д. 14, пос. Вольгинский, Петушинский р-н, Владимирская обл., 601125</p></bio><bio xml:lang="en"><p>Polina E. Kargopolova</p><p>14 Vladimirskaya St., Volginsky, Petushinskiy District, Vladimir Region 601125</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/0000-0003-0023-0028</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Стрижакова</surname><given-names>О. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Strizhakova</surname><given-names>O. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Стрижакова Ольга Михайловна, канд. вет. наук</p><p>Владимирская ул., д. 14, пос. Вольгинский, Петушинский р-н, Владимирская обл., 601125</p></bio><bio xml:lang="en"><p>Olga M. Strizhakova, Cand. Sci. (Vet.)</p><p>14 Vladimirskaya St., Volginsky, Petushinskiy District, Vladimir Region 601125</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/0000-0002-9058-1106</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лягоскин</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Lyagoskin</surname><given-names>I. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лягоскин Иван Владимирович, канд. биол. наук</p><p>Владимирская ул., д. 14, пос. Вольгинский, Петушинский р-н, Владимирская обл., 601125</p></bio><bio xml:lang="en"><p>Ivan V. Lyagoskin, Cand. Sci. (Biol.)</p><p>14 Vladimirskaya St., Volginsky, Petushinskiy District, Vladimir Region 601125</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/0009-0004-1418-6528</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Васильев</surname><given-names>А. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Vasilev</surname><given-names>A. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Васильев Александр Павлович, канд. биол. наук</p><p>Владимирская ул., д. 14, пос. Вольгинский, Петушинский р-н, Владимирская обл., 601125</p></bio><bio xml:lang="en"><p>Alexandr P. Vasilev, Cand. Sci. (Biol.)</p><p>14 Vladimirskaya St., Volginsky, Petushinskiy District, Vladimir Region 601125</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/0000-0002-5099-3050</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Першин</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Pershin</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Першин Андрей Сергеевич, канд. вет. наук</p><p>Владимирская ул., д. 14, пос. Вольгинский, Петушинский р-н, Владимирская обл., 601125</p></bio><bio xml:lang="en"><p>Andrey S. Pershin, Cand. Sci. (Vet.)</p><p>14 Vladimirskaya St., Volginsky, Petushinskiy District, Vladimir Region 601125</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Акционерное общество «ГЕНЕРИУМ»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>GENERIUM JSC</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>19</day><month>06</month><year>2024</year></pub-date><volume>14</volume><issue>3</issue><fpage>317</fpage><lpage>329</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Никонова Ю.А., Аббасова С.Г., Каргополова П.Е., Стрижакова О.М., Лягоскин И.В., Васильев А.П., Першин А.С., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Никонова Ю.А., Аббасова С.Г., Каргополова П.Е., Стрижакова О.М., Лягоскин И.В., Васильев А.П., Першин А.С.</copyright-holder><copyright-holder xml:lang="en">Nikonova Y.A., Abbasova S.G., Kargopolova P.E., Strizhakova O.M., Lyagoskin I.V., Vasilev A.P., Pershin 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://www.vedomostincesmp.ru/jour/article/view/603">https://www.vedomostincesmp.ru/jour/article/view/603</self-uri><abstract><sec><title>ВВЕДЕНИЕ</title><p>ВВЕДЕНИЕ. Для биоаналитических методик характерны бо́льшая вариабельность и меньшая устойчивость по сравнению с физико-химическими методиками в силу лабильности характеристик живых тест-систем. Поскольку в нормативных документах не определен единый подход к формированию перечня критериев пригодности системы и допустимых границ для полученных результатов, то их устанавливают на основании валидационных испытаний.</p></sec><sec><title>ЦЕЛЬ</title><p>ЦЕЛЬ. Получить экспериментальное подтверждение соответствия методики оценки биологической активности лекарственного средства на основе разрабатываемого биоаналога тоцилизумаба (GNR-087) валидационным требованиям и определить количественные границы критериев пригодности аналитической системы и приемлемости результатов анализа.</p></sec><sec><title>МАТЕРИАЛЫ И МЕТОДЫ</title><p>МАТЕРИАЛЫ И МЕТОДЫ. Биологическую активность биоаналога тоцилизумаба оценивали по ингибированию интерлейкин-6-зависимой секреции эмбриональной щелочной фосфатазы (SEAP), продуцируемой клетками репортерной линии HEK-Blue™ IL-6. Статистическую обработку полученных результатов проводили с использованием программного обеспечения Prism 6.0.</p></sec><sec><title>РЕЗУЛЬТАТЫ</title><p>РЕЗУЛЬТАТЫ. Специфичность методики подтверждена дозозависимым ингибированием интерлейкин-6-зависимой секреции эмбриональной щелочной фосфатазы клетками при действии тоцилизумаба. Методика линейна, коэффициент детерминации линейной функции R2≥0,99. Прецизионность методики удовлетворительная, сходимость — от 2 до 9%, внутрилабораторная прецизионность — 9 и 14%. Коэффициенты выявления активности (Rc) модельных образцов с симулированной активностью от 60 до 140%, в том числе и «слепых проб», находились в диапазоне 80–120%. Теоретические значения относительной специфической активности (RP) находились внутри доверительных интервалов средних найденных значений RP, что подтвердило правильность методики. Подтверждена устойчивость методики к контролируемым изменениям: использованию репортерных клеток разных пассажей (коэффициент вариации (CVRP) составил 10%), замене лотов ИЛ-6 (CVRP=1%) и реагента для детекции SEAP (CVRP=3%), при этом значение Rc находилось в диапазоне 80–120% от номинального значения RP.</p></sec><sec><title>ВЫВОДЫ</title><p>ВЫВОДЫ. Методика оценки биологической активности биоаналога тоцилизумаба соответствует валидационным характеристикам, таким как правильность, линейность, прецизионность, специфичность и устойчивость к контролируемым изменениям. Установлены границы критериев пригодности системы и рассчитаны критерии приемлемости результатов биологического анализа. Разработанная методика может служить как для рутинного контроля биологической активности, так и для использования в исследованиях при доказательстве биоподобия разрабатываемых препаратов оригинальному (референтному) препарату, содержащему тоцилизумаб.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>INTRODUCTION</title><p>INTRODUCTION. Bioanalytical techniques are characterised by greater variability and lower stability than physicochemical methods because live test systems are inherently labile. Since regulatory standards do not establish a unified approach, the selection of system suitability criteria and acceptance criteria for test results is based on validation studies.</p></sec><sec><title>AIM</title><p>AIM. This study aimed to validate an analytical procedure for evaluating the biological activity of a medicinal product based on the investigational tocilizumab biosimilar GNR-087 and determine the quantitative limits for system suitability criteria and acceptance criteria for test results.</p></sec><sec><title>MATERIALS AND METHODS</title><p>MATERIALS AND METHODS. The biological activity of the investigational tocilizumab biosimilar was assessed by the inhibition of IL-6-induced secreted embryonic alkaline phosphatase (SEAP) expression by HEK-Blue™ IL-6 cells. Statistical processing of the obtained results was performed using Prism 6.0 software.</p></sec><sec><title>RESULTS</title><p>RESULTS. The specificity of the analytical procedure was confirmed by the dose-dependent inhibition of IL-6-induced SEAP expression by cells observed with tocilizumab. The analytical procedure was linear, with a coefficient of determination R2≥ 0.99. The precision of the analytical procedure was satisfactory; its repeat ability varied from 2 to 9%, and its intermediate precision was 14%. The recovery coefficients (Rc) for spiked samples simulating activity levels of 60–140%, including blinded samples, ranged from 80 to 120%. The theoretical values of relative potency (RP) were within the confidence intervals of the mean relative potency estimates, which confirmed the accuracy of the analytical procedure. The validation confirmed the robustness of the analytical procedure to controlled variations, including the use of reporter cells at different passages (with a coefficient of variation for relative potency estimates (CVRP) of 10%), different IL-6 lots (with a CVRP of 1%), and different SEAP detection reagent lots (with a CVRP of 3%); the Rc remained in the range of 80–120% of the nominal RP value.</p></sec><sec><title>CONCLUSIONS</title><p>CONCLUSIONS. The analytical procedure for evaluating the biological activity of the investigational tocilizumab biosimilar meets the validation criteria, including accuracy, linearity, precision, specificity, and robustness. The study established system suitability criteria and acceptable limits for biological assay results. This analytical procedure can be used both for routine biological activity control and for demonstrating the biosimilarity of new medicinal products to the original (reference) tocilizumab-based medicinal product.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>биологический анализ</kwd><kwd>специфическая активность</kwd><kwd>валидация аналитических методик</kwd><kwd>критерии приемлемости результатов анализа</kwd><kwd>критерии пригодности системы</kwd><kwd>тоцилизумаб</kwd><kwd>биологическая активность</kwd><kwd>интерлейкин-6</kwd></kwd-group><kwd-group xml:lang="en"><kwd>biological assay</kwd><kwd>potency</kwd><kwd>validation of analytical procedures</kwd><kwd>acceptance criteria for test results</kwd><kwd>system suitability criteria</kwd><kwd>tocilizumab</kwd><kwd>biological activity</kwd><kwd>interleukin-6</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при спонсорской поддержке АО «ГЕНЕРИУМ».</funding-statement><funding-statement xml:lang="en">The study reported in this paper was carried out with the financial support of GENERIUM JSC.</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">Rose-John S, Scheller J, Elson G, Jones S. 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