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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">biopreparat</journal-id><journal-title-group><journal-title xml:lang="ru">БИОпрепараты. Профилактика, диагностика, лечение</journal-title><trans-title-group xml:lang="en"><trans-title>Biological Products. Prevention, Diagnosis, Treatment</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2221-996X</issn><issn pub-type="epub">2619-1156</issn><publisher><publisher-name>Scientific Centre for Expert Evaluation of Medicinal Products</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">biopreparat-98</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>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL ARTICLES</subject></subj-group></article-categories><title-group><article-title>Разработка и валидация методики определения концентрации экулизумаба в плазме крови человека с применением технологии биослойной интерферометрии</article-title><trans-title-group xml:lang="en"><trans-title>Development and validation of a method for determination of Eculizumab concentration in human plasma by biolayer interferometry</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>Симонов</surname><given-names>В. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Simonov</surname><given-names>V. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Научный сотрудник отдела молекулярной и клеточной биологии</p></bio><email xlink:type="simple">noemail@neicon.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>Пантюшенко</surname><given-names>М. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Pantushenko</surname><given-names>M. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Научный сотрудник отдела аналитических методов</p></bio><bio xml:lang="en"><p>Staff scientist of department of analytical methods</p></bio><email xlink:type="simple">noemail@neicon.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>Казаров</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kazarov</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Начальник лаборатории иммунохимии отдела аналитических методов</p></bio><bio xml:lang="en"><p>Head of immunochemistry laboratory of department of analytical methods</p></bio><email xlink:type="simple">noemail@neicon.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>Маркова</surname><given-names>О. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Markova</surname><given-names>O. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Руководитель научной клинической группы управления клинических исследований</p></bio><bio xml:lang="en"><p>Head of scientific clinical group of clinical study department</p></bio><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Порошин</surname><given-names>Г. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Poroshin</surname><given-names>G. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Научный сотрудник отдела аналитических методов</p></bio><bio xml:lang="en"><p>Staff scientist of department of analytical methods</p></bio><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Международный биотехнологический центр «Генериум»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>International Biotechnology Center «Generium»</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>АО «Генериум»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>JSC «Generium»</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2017</year></pub-date><pub-date pub-type="epub"><day>20</day><month>02</month><year>2018</year></pub-date><volume>17</volume><issue>3</issue><fpage>158</fpage><lpage>164</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Симонов В.М., Пантюшенко М.С., Казаров А.А., Маркова О.А., Порошин Г.Н., 2018</copyright-statement><copyright-year>2018</copyright-year><copyright-holder xml:lang="ru">Симонов В.М., Пантюшенко М.С., Казаров А.А., Маркова О.А., Порошин Г.Н.</copyright-holder><copyright-holder xml:lang="en">Simonov V.M., Pantushenko M.S., Kazarov A.A., Markova O.A., Poroshin G.N.</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.biopreparations.ru/jour/article/view/98">https://www.biopreparations.ru/jour/article/view/98</self-uri><abstract><p>Разработана и валидирована методика определения концентрации препарата моноклонального терапевтического антитела экулизумаб в плазме крови человека в диапазоне концентраций 3-250 мкг/мл. Методика основана на взаимодействии иммобилизованного Fab-фрагмента антитела, специфичного к экулизумабу в образце плазмы крови. Методика использует принцип биослойной интерферометрии, позволяющий без внесения дополнительных меток оценить концентрацию анализируемого вещества. Результаты валидации методики сопоставлялись с результатами валидации альтернативной методики на основе иммуноферментного анализа. По итогам исследования показано преимущество методики на основе биослойной интерферометрии по основным метрологическим характеристикам - аналитическому диапазону, правильности, прецизионности и селективности.</p></abstract><trans-abstract xml:lang="en"><p>The article describes a new method for measurement of monoclonal antibody Eculizumab concentration in human plasma in a range of 3-250 μg/ml. In this method we used an antibody Fab fragment, capable of binding to eculizumab specifically in human plasma. The method uses the biolayer interferometry for determination of Eculizumab concentration without additional tag in the analyzing substances. This method was comparatively validated along with the traditional ELISA. Comparative validation demonstrated that the biolayer interferometry based method has an advantage to the ELISA in such important statistical criteria as an analytical range, accuracy, precision, specificity and selectivity (matrix effect).</p></trans-abstract><kwd-group xml:lang="ru"><kwd>моноклональное антитело</kwd><kwd>экулизумаб</kwd><kwd>биослойная интерферометрия</kwd><kwd>валидация</kwd><kwd>monoclonal antibody</kwd><kwd>Eculizumab</kwd><kwd>biolayer interferometry</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">Young N, Maciejewski J. 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