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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">phkinetica</journal-id><journal-title-group><journal-title xml:lang="ru">Фармакокинетика и Фармакодинамика</journal-title><trans-title-group xml:lang="en"><trans-title>Pharmacokinetics and Pharmacodynamics</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2587-7836</issn><issn pub-type="epub">2686-8830</issn><publisher><publisher-name>ООО «Издательство ОКИ»</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.37489/2587-7836-2023-1-58-64</article-id><article-id custom-type="elpub" pub-id-type="custom">phkinetica-359</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>ДОКЛИНИЧЕСКИЕ ИССЛЕДОВАНИЯ ФАРМАКОДИНАМИКИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>PRECLINICAL PHARMACODYNAMICS STUDIES</subject></subj-group></article-categories><title-group><article-title>Валидация тест-системы для количественного определения концентрации трастузумаба (Герцептин, Гертикад) в биологических жидкостях методом твердофазного иммуноферментного анализа</article-title><trans-title-group xml:lang="en"><trans-title>Validation of ELISA Test-system for Trastuzumab (Herceptin, Hertikad) quantitative determination in biological fluids</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3212-4369</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Писарев</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Pisarev</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Писарев Владимир Викторович, Генеральный директор</p><p>Москва</p></bio><bio xml:lang="en"><p>Pisarev Vladimir V., General manager</p><p>Moscow</p></bio><email xlink:type="simple">vladimir.pisarev@probiotech.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/0000-0002-1676-7754</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Иванов</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Ivanov</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Иванов Андрей Владимирович, с. н. с.</p><p>Москва</p></bio><bio xml:lang="en"><p>Ivanov Andrei V., Senior Researcher</p><p>Moscow</p></bio><email xlink:type="simple">gostyatin@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Общество с ограниченной ответственностью «Научно-производственный центр Пробиотек»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Scientific and Production Center Probiotech LLC</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>10</day><month>05</month><year>2023</year></pub-date><volume>0</volume><issue>1</issue><fpage>58</fpage><lpage>64</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Писарев В.В., Иванов А.В., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Писарев В.В., Иванов А.В.</copyright-holder><copyright-holder xml:lang="en">Pisarev V.V., Ivanov A.V.</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.pharmacokinetica.ru/jour/article/view/359">https://www.pharmacokinetica.ru/jour/article/view/359</self-uri><abstract><p>Актуальность. Трастузумаб является препаратом выбора для терапии HER2+ рака молочных желез. Для определения фармакодинамики препарата при персонализированной терапии необходима валидированная биоаналитическая методика определения концентрации препарата в биологических жидкостях. Цель работы: создание и оценка пригодности (валидация) тест-системы на основе твердофазного иммуноферментного анализа (ИФА) для количественного определения концентрации трастузумаба в сыворотке/плазме крови человека. Материалы и методы. Представленная тест-система является классическим ИФА набором с 96-луночным полистероловым планшетом, лунки которого покрыты специфическими к трастузумабу моноклональными антителами, вторичными козьими антителами к Fc фрагменту, конъюгированными с пероксидазой хрена, субстратного раствора — (3,5,3',5')-тетраметилбензидина (ТМБ) и стоп-раствора. Растворы для контроля качества готовились путём разведения известных концентраций трастузумаба в бланковой сыворотке. Результаты. В ходе работы установлены предел обнаружения (0,84 нг/мл) и нижний предел количественного определения (1,41 нг/мл) трастузумаба в сыворотке/плазме крови, доказана высокая селективность определения аналита в многокомпонентной матрице. Найденные средние значения концентраций трастузумаба не отклонялись от номинальных значений на более чем 11,42 % во всём диапазоне определяемых концентраций, внутри- и межсерийная прецизионность тест-системы не превышала 11,31 %, общая ошибка метода — 20,0 %. Продемонстрированные характеристики позволяют применять данную тест-систему для анализа широкого диапазона концентраций трастузумаба в биологических образцах. Стабильность компонентов тест-системы определена как не меньше 1 года при соблюдении условий хранении. Заключение. Представленная тест-система соответствует международным валидационным требованиям и пригодна для практического применения.</p></abstract><trans-abstract xml:lang="en"><p>Relevance. Trastuzumab is the drug of choice for the HER2+ breast cancer treatment. To determine the trastuzumab pharmacodynamics in personalized therapy a validated bioanalytical method for measuring the concentration of the drug in biological fluids is required. The aim: creation and assessment of the suitability (validation) of a test system based on enzyme-linked immunosorbent assay (ELISA) for the quantitative determination of trastuzumab concentration in human serum/plasma. Materials and methods. The presented test system is a classic ELISA kit with a 96-well polystyrene plate, the wells of which are coated with monoclonal antibodies specific to trastuzumab, secondary goat antibodies to the Fc fragment conjugated with horseradish peroxidase (HRP), substrate solution — (3,5,3',5')-tetramethylbenzidine (TMB) and stop solution. Quality control solutions were prepared by diluting known concentrations of trastuzumab in blank serum. Results. In the course of the work the limit of detection (0.84 ng/ml) and the lower limit of quantitative determination (1.41 ng/ml) of trastuzumab in serum/plasma were established and the high selectivity of analyte determination in a multicomponent matrix was proved. The found average values of trastuzumab concentrations did not deviate from the nominal values by more than 14 % in the entire range of determined concentrations, the intraand interseries precision of the test system did not exceed 8%, and the total method error was 20.1 %. The demonstrated dilution linearity allows the assay to be used to analyze a wide range of trastuzumab concentrations in biological samples. The stability of the components of the test system is defined as at least 1 year under storage conditions. Conclusion. The presented ELISA test system complies with international validation requirements and it is suitable for practical use.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>трастузумаб</kwd><kwd>ИФА</kwd><kwd>валидация</kwd><kwd>фармакокинетика</kwd></kwd-group><kwd-group xml:lang="en"><kwd>trastuzumab</kwd><kwd>ELISA</kwd><kwd>validation</kwd><kwd>pharmacokinetics</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">Mendes D, Alves C, Afonso N, Cardoso F, Passos-Coelho JL, Costa L, Andrade S, Batel-Marques F. The benefit of HER2-targeted therapies on overall survival of patients with metastatic HER2-positive breast cancer–a systematic review. Breast Cancer Res. 2015;17:140. DOI: 10.1186/s13058-015-0648-2.</mixed-citation><mixed-citation xml:lang="en">Mendes D, Alves C, Afonso N, Cardoso F, Passos-Coelho JL, Costa L, Andrade S, Batel-Marques F. 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