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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">10.33380/2305-2066-2023-12-2-135-145</article-id><article-id custom-type="elpub" pub-id-type="custom">pharmjournal-1493</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>Совместное определение нирматрелвира и ритонавира в плазме крови человека методом ВЭЖХ-МС/МС</article-title><trans-title-group xml:lang="en"><trans-title>Simultaneous Determination of Nirmatrelvir and Ritonavir in Human Plasma by HPLC-MS/MS</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8354-7877</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>117638, г. Москва, Симферопольский бульвар, д. 8;117198, г. Москва, ул. Миклухо-Маклая, д. 6</p></bio><bio xml:lang="en"><p>8, Simferopolskiy bulv., Moscow, 117638; 6 Miklukho-Maklaya St, Moscow, 117198</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/0000-0002-7518-0777</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>117638, г. Москва, Симферопольский бульвар, д. 8</p></bio><bio xml:lang="en"><p>8, Simferopolskiy bulv., Moscow, 117638</p></bio><email xlink:type="simple">p.karnakova@cpha.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6621-1060</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>117638, г. Москва, Симферопольский бульвар, д. 8</p></bio><bio xml:lang="en"><p>8, Simferopolskiy bulv., Moscow, 117638</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/0000-0003-4894-7001</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Щелгачева</surname><given-names>Д. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Shchelgacheva</surname><given-names>D. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>117638, г. Москва, Симферопольский бульвар, д. 8</p></bio><bio xml:lang="en"><p>8, Simferopolskiy bulv., Moscow, 117638</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>117638, г. Москва, Симферопольский бульвар, д. 8</p></bio><bio xml:lang="en"><p>8, Simferopolskiy bulv., Moscow, 117638</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/0000-0002-1185-8630</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>117638, г. Москва, Симферопольский бульвар, д. 8</p></bio><bio xml:lang="en"><p>8, Simferopolskiy bulv., Moscow, 117638</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/0000-0002-7348-9412</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Заславская</surname><given-names>К. Я.</given-names></name><name name-style="western" xml:lang="en"><surname>Zaslavskaya</surname><given-names>K. Ya.</given-names></name></name-alternatives><bio xml:lang="ru"><p>129090, г. Москва, пр-т Мира, д. 13 стр. 1</p></bio><bio xml:lang="en"><p>13/1, Prospekt Mira, Moscow, 129090</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/0000-0001-5998-4874</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Белый</surname><given-names>П. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Bely</surname><given-names>P. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>129090, г. Москва, пр-т Мира, д. 13 стр. 1</p></bio><bio xml:lang="en"><p>13/1, Prospekt Mira, Moscow, 129090</p></bio><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ООО «Центр Фармацевтической Аналитики» (ООО «ЦФА»); Российский университет дружбы народов</institution></aff><aff xml:lang="en"><institution>LLC "CPHA"; RUDN University</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ООО «Центр Фармацевтической Аналитики» (ООО «ЦФА»)</institution></aff><aff xml:lang="en"><institution>LLC "CPHA"</institution></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>ООО «ПРОМОМЕД РУС»</institution></aff><aff xml:lang="en"><institution>LLC "PROMOMED RUS"</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>28</day><month>05</month><year>2023</year></pub-date><volume>12</volume><issue>2</issue><fpage>135</fpage><lpage>145</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Комаров Т.Н., Карнакова П.К., Арчакова О.А., Щелгачева Д.С., Багаева Н.С., Шохин И.Е., Заславская К.Я., Белый П.А., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Комаров Т.Н., Карнакова П.К., Арчакова О.А., Щелгачева Д.С., Багаева Н.С., Шохин И.Е., Заславская К.Я., Белый П.А.</copyright-holder><copyright-holder xml:lang="en">Komarov T.N., Karnakova P.K., Archakova O.A., Shchelgacheva D.S., Bagaeva N.S., Shohin I.E., Zaslavskaya K.Y., Bely P.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.pharmjournal.ru/jour/article/view/1493">https://www.pharmjournal.ru/jour/article/view/1493</self-uri><abstract><sec><title>Введение</title><p>Введение. В настоящее время предполагается, что вирус SARS-CoV-2 (severe acute respiratory syndrome-related coronavirus 2), вызывающий новую коронавирусную инфекцию COVID-19 (Coronavirus Disease 2019) останется постоянной глобальной угрозой. В связи с этим, вопрос разработки лекарственных препаратов для лечения COVID-19 остается актуальным. Комбинация нирматрелвира с ритонавиром обладает прямым противовирусным действием: при ее применении удается повысить эффективность терапии и снизить риск осложнений COVID-19. Разработка и валидация методики совместного определения нирматрелвира и ритонавира в плазме крови человека является необходимой задачей для проведения аналитической части клинического исследования с целью дальнейшего изучения фармакокинетических параметров.</p></sec><sec><title>Цель</title><p>Цель. Целью исследования является разработка и валидация методики совместного определения нирматрелвира и ритонавира в плазме крови человека методом высокоэффективной жидкостной хроматографии с тандемным масс-селективным детектированием (ВЭЖХ-МС/ МС) для дальнейшего изучения фармакокинетики.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Определение нирматрелвира и ритонавира в плазме крови человека проводили методом ВЭЖХ-МС/МС. В качестве пробоподготовки был использован способ осаждения белков ацетонитрилом. Внутренний стандарт: прометазин. Подвижная фаза: 0,1%-й раствор муравьиной кислоты в воде (элюент А), 0,1%-й муравьиной кислоты в ацетонитриле (элюент В). Колонка: Phenomenex Luna C18 50 × 2,0 мм, 5 мкм. Аналитический диапазон методики: 50,00–10000,00 нг/мл для нирматрелвира, 5,00–1000,00 нг/мл для ритонавира в плазме крови. Источник ионизации и ионизация: электроспрей, положительная. Условия детектирования: 499,90 → 110,10 m/z, 499,90 → 319,20 m/z (нирматрелвир), 720,90 → 426,00 m/z, 720,90 → 296,20 m/z, 720,90 → 268,10 m/z, 720,90 → 197,10 m/z, 720,90 → 139,90 m/z (ритонавир), 285,15 → 198,05 m/z (прометазин).</p></sec><sec><title>Результаты и обсуждение</title><p>Результаты и обсуждение. Разработанная методика была валидирована по следующим валидационным параметрам: селективность, эффект матрицы, калибровочная кривая, точность, прецизионность, степень извлечения, нижний предел количественного определения перенос пробы, стабильность.</p></sec><sec><title>Заключение</title><p>Заключение. Разработана и валидирована методика совместного определения нирматрелвира и ритонавира в плазме крови человека методом ВЭЖХ-МС/МС. Подтвержденный аналитический диапазон методики составил 50,00–10000,00 нг/мл для нирматрелвира, 5,00– 1000,00 нг/мл для ритонавира в плазме крови. Полученный аналитический диапазон позволяет применять разработанную методику для проведения фармакокинетических исследований комбинированных препаратов нирматрелвира и ритонавира.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. SARS-CoV-2 (severe acute respiratory syndrome-related coronavirus 2) is expected to remain a persistent global threat. Therefore, development of coronavirus disease 2019 (COVID-19) drugs is the most urgent global issue. Nirmatrelvir and ritonavir combination is an oral antiviral drug combination with activity against SARS-CoV-2. Nirmatrelvir and ritonavir combination is highly efficacious in reducing the risk of COVID-19. The study describes development and validation of high-performance liquid chromatography – tandem mass spectrometry (HPLC-MS/MS) method for the simultaneous determination of nirmatrelvir and ritonavir in human blood plasma. The method could be applied in pharmacokinetic study of nirmatrelvir and ritonavir.</p></sec><sec><title>Aim</title><p>Aim. The aim of this study is to develop and validate a HPLC-MS/MS bioanalytical method for the determination of nirmatrelvir and ritonavir in human plasma.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. The determination of nirmatrelvir and ritonavir in human plasma by HPLC-MS/MS. The samples were processed by acetonitrile protein precipitation. Internal standard: promethazine. Mobile phase: 0.1% formic acid solution in water (Eluent A), 0.1% formic acid in acetonitrile (Eluent B). Column: Phenomenex Luna C18 50 × 2.0 mm, 5 μm. Analytical range: 50.00–10000.00 ng/mL for nirmatrelvir, 5.00–1000.00 ng/mL for ritonavir in human plasma. Ionization source and ionization: electrospray ionization, positive. Detection conditions: 499.90 → 110.10 m/z, 499.90 → 319.20 m/z (nirmatrelvir), 720.90 → 426.00 m/z, 720.90 → 296.20 m/z, 720.90 → 268.10 m/z, 720.90 → 197.10 m/z, 720.90 → 139.90 m/z (ritonavir), 285.15 → 198.05 m/z (promethazine).</p></sec><sec><title>Results and discussion</title><p>Results and discussion. This method was validated for selectivity, matrix effect, calibration curve, accuracy, precision, spike recovery, the lower limit of quantification, carry-over effect and stability.</p></sec><sec><title>Conclusion</title><p>Conclusion. The HPLC-MS/MS method for quantitative determination of nirmatrelvir and ritonavir in human plasma was developed and validated. The analytical range was 50.00–10000.00 ng/mL for nirmatrelvir, 5.00–1000.00 ng/mL for ritonavir in human plasma. This method was applied to investigate the pharmacokinetics of nirmatrelvir and ritonavir. </p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>нирматрелвир</kwd><kwd>ритонавир</kwd><kwd>COVID-19</kwd><kwd>плазма</kwd><kwd>ВЭЖХ-МС/МС</kwd><kwd>валидация</kwd><kwd>фармакокинетика</kwd></kwd-group><kwd-group xml:lang="en"><kwd>nirmatrelvir</kwd><kwd>ritonavir</kwd><kwd>COVID-19</kwd><kwd>plasma</kwd><kwd>HPLC-MS/MS</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">Garg I., Shekhar R., Sheikh A. B., Pal S. Impact of COVID-19 on the changing patterns of respiratory syncytial virus infections. Infectious Disease Reports. 2022;14(4):558–568. DOI: 10.3390/idr14040059.</mixed-citation><mixed-citation xml:lang="en">Garg I., Shekhar R., Sheikh A. B., Pal S. 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