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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">10.33380/2305-2066-2019-8-3-79-84</article-id><article-id custom-type="elpub" pub-id-type="custom">pharmjournal-718</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 бусерелина в плазме крови животных</article-title><trans-title-group xml:lang="en"><trans-title>Development and Validation of HPLC-MS/MS Method for Busereline Quantitation in Animal Blood Plasma</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Фишер</surname><given-names>Е. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Fisher</surname><given-names>E. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>119991, г. Москва, ул. Трубецкая, д. 8; 117246, Москва, Научный проезд, д. 20, стр. 3</p></bio><bio xml:lang="en"><p>8, Trubetskaya str., Mosсow, 119991; 20/3, Nauchny proezd, Moscow, 117246</p></bio><email xlink:type="simple">elizaveta.fisher@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мельников</surname><given-names>Е. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Melnikov</surname><given-names>E. S.</given-names></name></name-alternatives><bio xml:lang="ru"/><bio xml:lang="en"/><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><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. Е.</given-names></name></name-alternatives><bio xml:lang="ru"/><bio xml:lang="en"/><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГАОУ ВО Первый МГМУ им. И. М. Сеченова Минздрава России (Сеченовский Университет); &#13;
ООО «Центр фармацевтической аналитики»</institution></aff><aff xml:lang="en"><institution>I. M. Sechenov First MSMU MOH Russia (Sechenovskij University); &#13;
LLC «CPHA»</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГАОУ ВО Первый МГМУ им. И. М. Сеченова Минздрава России (Сеченовский Университет); &#13;
ГБУ города Москвы «Городская клиническая больница им. И. В. Давыдовского Департамента здравоохранения города Москвы»</institution></aff><aff xml:lang="en"><institution>I. M. Sechenov First MSMU MOH Russia (Sechenovskij University);&#13;
Clinical Hospital. I. V. Davidovsky Department of Health of the city of Moscow</institution></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>ООО «Центр фармацевтической аналитики»</institution></aff><aff xml:lang="en"><institution>LLC «CPHA»</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>04</day><month>09</month><year>2019</year></pub-date><volume>8</volume><issue>3</issue><fpage>79</fpage><lpage>84</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Фишер Е.Н., Мельников Е.С., Шохин И.Е., 2019</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="ru">Фишер Е.Н., Мельников Е.С., Шохин И.Е.</copyright-holder><copyright-holder xml:lang="en">Fisher E.N., Melnikov E.S., Shohin I.Е.</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/718">https://www.pharmjournal.ru/jour/article/view/718</self-uri><abstract><sec><title>Введение</title><p>Введение. Бусерелин, синтетический аналог гонадотропин-рилизинг гормона, используется в лечении таких гормонально-зависимых опухолей, как рак предстательной железы и рак молочной железы. На основании опубликованных научных трудов основным аналитическим методом количественного определения бусерелина в биологической жидкости является высокоэффективная жидкостная хроматография с флюориметрическим детектированием с использованием в качестве пробоподготовки осаждение белков 10% раствором трихлоруксусной кислоты, который имеет ряд ограничений, связанных с низкой чувствительностью (на уровне мкг/мл). Таким образом, предпочтение в выборе метода количественного определения пептидной молекулы в биологических жидкостях отдавалось высокоэффективной жидкостной хроматографии с тандемной масс-спектрометрией, обладающей большей точностью и специфичностью. Основным методом пробоподготовки для аналогов гонадотропин-рилизинг гормона является твердофазная экстракция. В качестве альтернативы был выбран метод осаждение белков, как менее трудоемкий и более простой в исполнении.</p></sec><sec><title>Цель</title><p>Цель. Цель исследования заключалась в разработке и валидации методики количественного определения бусерелина в плазме крови животных (мини-свиней) методом высокоэффективной жидкостной хроматографией с тандемной масс-спектрометрией для проведения фармакокинетических исследований.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Количественное определение бусерелина в плазме крови проводили методом высокоэффективной жидкостной хроматографией с тандемной масс-спектрометрией. Осаждение белков метанолом в соотношении 1:2 использовали в качестве метода пробоподготовки биологической жидкости.</p></sec><sec><title>Результаты и обсуждения</title><p>Результаты и обсуждения. Разработанная биоаналитическая методика была валидирована по таким валидационным параметрам, как селективность, линейность, эффект матрицы, правильность (внутри цикла и между циклами), прецизионность (внутри цикла и между циклами), нижний предел количественного определения, перенос пробы и стабильность.</p></sec><sec><title>Заключение</title><p>Заключение. Разработана и валидирована методика количественного определения бусерелина в плазме крови методом ВЭЖХ-МС/МС. Аналитический диапазон методики составил 1,0–20 нг/мл. Разработанная методика может быть использована для количественного определения бусерелина в плазме крови с целью исследования фармакокинетики.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. Busereline, being a synthetic gonadotropin-releasing hormone analog, is widely used for hormone-dependent cancer treatment (e.g. prostate cancer and breast cancer). Based on the accumulated scientific data for busereline quantitation in biosamples, the main analytical method that is used for this purpose is high-performance liquid chromatography (HPLC) with fluorescence detection, combined with protein precipitation (TCA 10%) for sample preparation. However, due to several limitations of this method resulting in low sensitivity (at the µg/mL level of concentrations), the HPLC-MS/MS analytical method was chosen for peptide determination in biosamples. The HPLC-MS/MS method is considered to have higher accuracy and specificity. The main sample preparation method for gonadotropin-releasing hormone analogs is solid-phase extraction. In our work, we’ve chosen protein precipitation as an alternative – easier and less laborious biosamples preparation process.</p></sec><sec><title>Aim</title><p>Aim. The main objective of this study was the development and validation of HPLC-MS/MS method for busereline quantitation in animal (mini pigs) plasma samples and its further application to pharmacokinetic studies.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. Busereline quantitative determination in plasma samples was performed using HPLC-MS/MS method. A protein precipitation procedure (methanol, 1:2, v/v) was used for busereline extraction from pig plasma.</p></sec><sec><title>Results and discussion</title><p>Results and discussion. The developed analytical method was validated for selectivity, linearity, matrix effect, accuracy (intra-day, inter-day), precision (intra-day, inter-day), LLOQ, carryover and stability.</p></sec><sec><title>Conclusion</title><p>Conclusion. A new HPLC-MS/MS method for busereline quantitation in blood plasma was developed and successfully validated. The developed method showed linearity over the quantitation range from 1 to 20 ng/mL. The developed method can be successfully applied to busereline pharmacokinetic studies.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>пептиды</kwd><kwd>бусерелин</kwd><kwd>фармакокинетика</kwd><kwd>ВЭЖХ-МС/МС</kwd><kwd>аналог гонадотропин-рилизинг гормона</kwd><kwd>валидация</kwd></kwd-group><kwd-group xml:lang="en"><kwd>peptides</kwd><kwd>busereline</kwd><kwd>pharmacokinetics</kwd><kwd>HPLS-MS/MS</kwd><kwd>gonadotropin-releasing hormone analogs</kwd><kwd>validation</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">Suszka-Świtek A., Ryszka F., Dolińska B., Dec R., Danch A., Filipczyk L., Wiaderkiewicz R. Pharmacokinetics and Bioavailability of the GnRH Analogs in the Form of Solution and Zn²⁺-Suspension After Single Subcutaneous Injection in Female Rats. 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