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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">pharmjournal</journal-id><journal-title-group><journal-title xml:lang="ru">Разработка и регистрация лекарственных средств</journal-title><trans-title-group xml:lang="en"><trans-title>Drug development &amp; registration</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2305-2066</issn><issn pub-type="epub">2658-5049</issn><publisher><publisher-name>LLC «CPHA»</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.33380/2305-2066-2024-13-2-1821</article-id><article-id custom-type="elpub" pub-id-type="custom">pharmjournal-1838</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 И КЛИНИЧЕСКИЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>PRECLINICAL AND CLINICAL STUDIES</subject></subj-group></article-categories><title-group><article-title>Разработка и валидация методики количественного определения тофацитиниба в плазме крови человека методом высокоэффективной жидкостной хроматографии с тандемной масс-спектрометрией</article-title><trans-title-group xml:lang="en"><trans-title>Development and validation of a high-performance liquid chromatography with tandem mass spectrometry method for quantification of tofacitinib in human plasma</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2219-5964</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ветрова</surname><given-names>Е. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Vetrova</surname><given-names>E. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>117149, г. Москва, Симферопольский бульвар, д. 8; 115409, г. Москва, Каширское шоссе, д. 31</p></bio><bio xml:lang="en"><p>8, Simferopol Boulevard, Moscow, 117149; 31, Kashirskoe shosse, Moscow, 115409</p></bio><email xlink:type="simple">e.vetrova@cpha.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/0000-0002-7518-0777</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Карнакова</surname><given-names>П. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Karnakova</surname><given-names>P. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>117149, г. Москва, Симферопольский бульвар, д. 8; 197022, г. Санкт-Петербург, ул. Профессора Попова, 14, лит. А</p></bio><bio xml:lang="en"><p>8, Simferopol Boulevard, Moscow, 117149; 14A, Prof. Popova str., Saint-Petersburg, 197022</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7496-8186</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Багаева</surname><given-names>Н. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Bagaeva</surname><given-names>N. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>117149, г. Москва, Симферопольский бульвар, д. 8</p></bio><bio xml:lang="en"><p>8, Simferopol Boulevard, Moscow, 117149</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4010-1231</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Карнакова</surname><given-names>К. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Karnakova</surname><given-names>K. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>117149, г. Москва, Симферопольский бульвар, д. 8</p></bio><bio xml:lang="en"><p>8, Simferopol Boulevard, Moscow, 117149</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0008-1688-1902</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Попова</surname><given-names>М. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Popova</surname><given-names>M. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>117149, г. Москва, Симферопольский бульвар, д. 8</p></bio><bio xml:lang="en"><p>8, Simferopol Boulevard, Moscow, 117149</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3874-8626</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Попова</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Popova</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>117149, г. Москва, Симферопольский бульвар, д. 8</p></bio><bio xml:lang="en"><p>8, Simferopol Boulevard, Moscow, 117149</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6621-1060</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Арчакова</surname><given-names>О. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Archakova</surname><given-names>O. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>117149, г. Москва, Симферопольский бульвар, д. 8</p></bio><bio xml:lang="en"><p>8, Simferopol Boulevard, Moscow, 117149</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8354-7877</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Комаров</surname><given-names>Т. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Komarov</surname><given-names>T. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>117149, г. Москва, Симферопольский бульвар, д. 8; 197022, г. Санкт-Петербург, ул. Профессора Попова, 14, лит. А; 117198, г. Москва, ул. Миклухо-Маклая, д. 6</p></bio><bio xml:lang="en"><p>8, Simferopol Boulevard, Moscow, 117149; 14A, Prof. Popova str., Saint-Petersburg, 197022; 6, Miklukho-Maklaya str., Moscow, 117198</p></bio><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1185-8630</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шохин</surname><given-names>И. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Shohin</surname><given-names>I. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>117149, г. Москва, Симферопольский бульвар, д. 8; 115409, г. Москва, Каширское шоссе, д. 31; 197022, г. Санкт-Петербург, ул. Профессора Попова, 14, лит. А</p></bio><bio xml:lang="en"><p>8, Simferopol Boulevard, Moscow, 117149;31, Kashirskoe shosse, Moscow, 115409;14A, Prof. Popova str., Saint-Petersburg, 197022</p></bio><xref ref-type="aff" rid="aff-5"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Общество с ограниченной ответственностью «Центр фармацевтической аналитики» (ООО «ЦФА»); Федеральное государственное автономное образовательное учреждение высшего образования «Национальный исследовательский ядерный университет «МИФИ» (ФГАОУ ВО «НИЯУ «МИФИ»)</institution></aff><aff xml:lang="en"><institution>LLC "Center of Pharmaceutical Analytics" (LLC "CPHA"); National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Общество с ограниченной ответственностью «Центр фармацевтической аналитики» (ООО «ЦФА»); Федеральное государственное бюджетное образовательное учреждение высшего образования «Санкт-Петербургский государственный химико-фармацевтический университет» Министерства здравоохранения Российской Федерации (ФГБОУ ВО СПХФУ Минздрава России)</institution></aff><aff xml:lang="en"><institution>LLC "Center of Pharmaceutical Analytics" (LLC "CPHA"); Saint-Petersburg State Chemical and Pharmaceutical University</institution></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Общество с ограниченной ответственностью «Центр фармацевтической аналитики» (ООО «ЦФА»)</institution></aff><aff xml:lang="en"><institution>LLC "Center of Pharmaceutical Analytics" (LLC "CPHA")</institution></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Общество с ограниченной ответственностью «Центр фармацевтической аналитики» (ООО «ЦФА»); Федеральное государственное бюджетное образовательное учреждение высшего образования «Санкт-Петербургский государственный химико-фармацевтический университет» Министерства здравоохранения Российской Федерации (ФГБОУ ВО СПХФУ Минздрава России); Федеральное государственное автономное образовательное учреждение высшего образования «Российский университет дружбы народов имени Патриса Лумумбы» (РУДН)</institution></aff><aff xml:lang="en"><institution>LLC "Center of Pharmaceutical Analytics" (LLC "CPHA"); Saint-Petersburg State Chemical and Pharmaceutical University; Peoples' Friendship University of Russia named after Patrice Lumumba (RUDN University)</institution></aff></aff-alternatives><aff-alternatives id="aff-5"><aff xml:lang="ru"><institution>Общество с ограниченной ответственностью «Центр фармацевтической аналитики» (ООО «ЦФА»); Федеральное государственное автономное образовательное учреждение высшего образования «Национальный исследовательский ядерный университет «МИФИ» (ФГАОУ ВО «НИЯУ «МИФИ»); Федеральное государственное бюджетное образовательное учреждение высшего образования «Санкт-Петербургский государственный химико-фармацевтический университет» Министерства здравоохранения Российской Федерации (ФГБОУ ВО СПХФУ Минздрава России)</institution></aff><aff xml:lang="en"><institution>LLC "Center of Pharmaceutical Analytics" (LLC "CPHA"); National Research Nuclear University MEPhI (Moscow Engineering Physics Institute); Saint-Petersburg State Chemical and Pharmaceutical University</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>28</day><month>05</month><year>2024</year></pub-date><volume>13</volume><issue>2</issue><fpage>233</fpage><lpage>244</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ветрова Е.С., Карнакова П.К., Багаева Н.С., Карнакова К.К., Попова М.О., Попова А.А., Арчакова О.А., Комаров Т.Н., Шохин И.Е., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Ветрова Е.С., Карнакова П.К., Багаева Н.С., Карнакова К.К., Попова М.О., Попова А.А., Арчакова О.А., Комаров Т.Н., Шохин И.Е.</copyright-holder><copyright-holder xml:lang="en">Vetrova E.S., Karnakova P.K., Bagaeva N.S., Karnakova K.K., Popova M.O., Popova A.A., Archakova O.A., Komarov T.N., Shohin I.E.</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.pharmjournal.ru/jour/article/view/1838">https://www.pharmjournal.ru/jour/article/view/1838</self-uri><abstract><sec><title>Введение</title><p>Введение. Применение тофацитиниба в медикаментозном лечении ревматоидного артрита не теряет актуальности в связи с прогнозируемым ростом распространенности данного заболевания. Вместе с тем, в результате ухода многих зарубежных компаний с фармацевтического рынка России возник спрос на выпуск лекарственных препаратов отечественного производства, в том числе воспроизведенных препаратов тофацитиниба, для регистрации которых обязательно проведение биоаналитических исследований. Необходимой частью аналитического этапа изучения биоэквивалентности является разработка и валидация методики количественного определения анализируемого вещества.</p></sec><sec><title>Цель</title><p>Цель. Целью данного исследования является разработка и валидация методики количественного определения тофацитиниба в плазме крови человека с использованием высокоэффективной жидкостной хроматографии в качестве системы разделения и тандемного масс-спектрометра в качестве метода детектирования.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Пробоподготовка биообразцов была основана на осаждении белков плазмы крови ацетонитрилом. В качестве внутреннего стандарта был выбран барицитиниб. Аналитический диапазон методики составил 1,00–200,00 нг/мл и в дальнейшем при проведении аналитического этапа исследования был расширен до 0,30–200,00 нг/мл. Подвижная фаза включала воду и ацетонитрил, подкисленные муравьиной кислотой до значения 0,1 % об. Неподвижная фаза была представлена Phenomenex Kinetex C18, 100 × 3,0 мм, 5 мкм (Phenomenex, США). Разделение и детектирование проб проводили в системе высокоэффективного жидкостного хроматографа с тандемным масс-спектрометрическим детектором (ВЭЖХ-МС/МС) в положительном режиме ионизации. Для аналита и внутреннего стандарта были подобраны следующие MRM-переходы: 313,30 → 173,00 m/z, 371,90 → 186,00 m/z соответственно.</p></sec><sec><title>Результаты и обсуждение</title><p>Результаты и обсуждение. Разработанная методика была валидирована согласно действующим требованиям нормативной документации ЕАЭС, FDA, EMA по следующим параметрам: селективность, специфичность, эффект переноса, эффект матрицы, степень извлечения, градуировочная кривая, нижний предел количественного определения, точность, прецизионность, стабильность. Проведена апробация методики в рамках аналитического этапа исследования.</p></sec><sec><title>Заключение</title><p>Заключение. Разработана и валидирована быстрая, нетрудоемкая и чувствительная методика количественного определения тофацитиниба в плазме крови человека с подтвержденным аналитическим диапазоном 0,30–200,00 нг/мл. Апробация методики при проведении аналитического этапа изучения биоэквивалентности препарата тофацитиниба подтверждает возможность использования методики в подобных биоаналитических исследованиях.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. The use of tofacitinib as a pharmacological treatment for rheumatoid arthritis remains relevant in the light of the predicted increase in prevalence of the disease. At the same time, due to the withdrawal of several foreign pharmaceutical companies from the Russian pharmaceutical market, there has been a heightened demand for domestically produced medications, including generic formulations of tofacitinib. Registration of generic drugs necessitates the conduct of bioanalytical studies. Development and validation of a method for quantifying the analyte in biosamples remains to be a crucial part of the bioequivalence studies.</p></sec><sec><title>Aim</title><p>Aim. The aim of this research is to develop and validate a method for the quantitative determination of tofacitinib in human plasma using high-performance liquid chromatography as the separation system coupled with a tandem mass spectrometer for detection purposes.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. Biosample preparation was based on plasma proteins precipitation using acetonitrile. Baricitinib was selected as an internal standard. The analytical range of the method was 1.00 to 200.00 ng/mL and was further expanded to 0.30 to 200.00 ng/mL during the analytical phase of the study. The mobile phase consisted of water and acetonitrile, both acidified with formic acid (0.1 % v/v). The stationary phase was a Phenomenex Kinetex C18 column [100 × 3.0 mm, with a particle size of 5 µm (Phenomenex, USA)]. Sample separation and detection were carried out using high-performance liquid chromatography coupled with a tandem mass spectrometry (HPLC-MS/MS), operating in positive ion mode. The multiple reaction monitoring (MRM) transitions selected for the analyte and the internal standard were 313.30 to 173.00 m/z and 371.90 to 186.00 m/z, respectively.</p></sec><sec><title>Results and discussion</title><p>Results and discussion. The developed assay was validated in accordance with the current requirements of regulatory documentation from the EAEU (Eurasian Economic Union), FDA (US Food and Drug Administration), and EMA (European Medicines Agency) with the following parameters being evaluated: selectivity, specificity, carry-over, matrix effect, recovery, calibration curve, lower limit of quantitation, accuracy, precision, stability. The validated method was applied in the analytical part of a bioequivalence study of domestically produced generic tofacitinib.</p></sec><sec><title>Conclusion</title><p>Conclusion. A method for the quantitative determination of tofacitinib in human blood plasma with an analytical range of 0.30–200.00 ng/mL was developed and validated. Application of the assay during the analytical phase of bioequivalence study of generic tofacitinib confirms the possibility of using the method in similar bioanalytical investigations.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>тофацитиниб</kwd><kwd>валидация</kwd><kwd>ВЭЖХ-МС/МС</kwd><kwd>биоэквивалентность</kwd><kwd>фармакокинетика</kwd><kwd>биоаналитические исследования</kwd></kwd-group><kwd-group xml:lang="en"><kwd>tofacitinib</kwd><kwd>validation</kwd><kwd>LC-MS/MS</kwd><kwd>bioequivalence</kwd><kwd>pharmacokinetics</kwd><kwd>bioanalytical study</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">Nasonov E. L., Avdeeva A. S., Lila A. M. Efficacy and safety of tofacitinib for immune-mediated inflammatory rheumatic diseases (Part I). Rheumatology Science and Practice. 2020;58(1):62–79. (In Russ.) 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