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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">oncotomsk</journal-id><journal-title-group><journal-title xml:lang="ru">Сибирский онкологический журнал</journal-title><trans-title-group xml:lang="en"><trans-title>Siberian journal of oncology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1814-4861</issn><issn pub-type="epub">2312-3168</issn><publisher><publisher-name>Tomsk National Research Medical Сепtеr of the Russian Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21294/1814-4861-2021-20-2-85-92</article-id><article-id custom-type="elpub" pub-id-type="custom">oncotomsk-1760</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>ОПЫТ РАБОТЫ ОНКОЛОГИЧЕСКИХ УЧРЕЖДЕНИЙ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ONCOLOGY PRACTICE</subject></subj-group></article-categories><title-group><article-title>ОПЫТ ПРИМЕНЕНИЯ ПЕРТУЗУМАБА В ПРОТИВООПУХОЛЕВОЙ ЛЕКАРСТВЕННОЙ ТЕРАПИИ HER2-ПОЗИТИВНОГО РАКА МОЛОЧНОЙ ЖЕЛЕЗЫ</article-title><trans-title-group xml:lang="en"><trans-title>EXPERIENCE OF USING PERTUZUMAB IN ANTICANCER THERAPY FOR HER2-POSITIVE BREAST CANCER</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3061-6108</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кит</surname><given-names>О. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Kit</surname><given-names>O. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p> доктор медицинских наук, профессор, член-корреспондент РАН, генеральный директор </p><p>Researcher ID (WOS): U-2241-2017. Author ID (Scopus): 55994103100</p><p> Россия, 344037, г. Ростов-на-Дону, ул. 14 линия, 63 </p></bio><bio xml:lang="en"><p> MD, DSc, Professor, Corresponding Member of the Russian Academy of Sciences, General Director </p><p>Researcher ID (WOS): U-2241-2017. Author ID (Scopus): 55994103100 </p><p> 63, 14th Line Street, Rostov-on-don, 344037, Russia </p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Владимирова</surname><given-names>Л. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Vladimirova</surname><given-names>L. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p> доктор медицинских наук, профессор, руководитель отдела лекарственного лечения опухолей</p><p>SPIN-код: 4857-6202. AuthorID (РИНЦ): 289090 </p><p>Россия, 344037, г. Ростов-на-Дону, ул. 14 линия, 63 </p></bio><bio xml:lang="en"><p> MD, DSc, Professor, Head of Tumor Drug Therapy Department </p><p> 63, 14th Line Street, Rostov-on-don, 344037, Russia </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/0000-0003-0158-3757</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Калабанова</surname><given-names>Е. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kalabanova</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p> кандидат медицинских наук, старший научный сотрудник отдела лекарственного лечения опухолей</p><p>SPIN-код: 9090-3007. AuthorID (РИНЦ): 734992</p><p> Россия, 344037, г. Ростов-на-Дону, ул. 14 линия, 63 </p></bio><bio xml:lang="en"><p> MD, PhD, Senior Researcher, Tumor Drug Therapy Department </p><p> 63, 14th Line Street, Rostov-on-don, 344037, Russia </p><p> </p></bio><email xlink:type="simple">alenakalabanova@mail.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/0000-0003-0965-0264</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сторожакова</surname><given-names>А. Э.</given-names></name><name name-style="western" xml:lang="en"><surname>Storozhakova</surname><given-names>A. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат медицинских наук, заведующая отделением противоопухолевой лекарственной терапии № 2</p><p>SPIN-код: 2804-7474. AuthorID (РИНЦ): 734057</p><p>Россия, 344037, г. Ростов-на-Дону, ул. 14 линия, 63 </p></bio><bio xml:lang="en"><p> MD, PhD, Head of Tumor Drug Therapy Department No. 2 </p><p> 63, 14th Line Street, Rostov-on-don, 344037, Russia </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/0000-0001-8628-4240</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кабанов</surname><given-names>С. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Kabanov</surname><given-names>S. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p> кандидат медицинских наук, врач отделения  противоопухолевой лекарственной терапии № 2,</p><p>SPIN-код: 6369-0824. AuthorID (РИНЦ): 794858</p><p> Россия, 344037, г. Ростов-на-Дону, ул. 14 линия, 63 </p></bio><bio xml:lang="en"><p> MD, PhD, Researcher, Tumor Drug Therapy Department </p><p> 63, 14th Line Street, Rostov-on-don, 344037, Russia </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/0000-0002-9661-9312</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Снежко</surname><given-names>Т. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Snezhko</surname><given-names>T. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p> кандидат медицинских наук, врач отделения противоопухолевой лекарственной терапии № 2</p><p> SPIN-код: 4479-1414. AuthorID (РИНЦ): 706064</p><p> Россия, 344037, г. Ростов-на-Дону, ул. 14 линия, 63 </p></bio><bio xml:lang="en"><p> MD, PhD, Tumor Drug Therapy Department No. 2 </p><p> 63, 14th Line Street, Rostov-on-don, 344037, Russia </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/0000-0002-0121-5906</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Миташок</surname><given-names>И. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Mitashok</surname><given-names>I. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>врач отделения противоопухолевой лекарственной терапии № 2,</p><p>SPIN-код: 6338-4453. AuthorID (РИНЦ): 799108</p><p> Россия, 344037, г. Ростов-на-Дону, ул. 14 линия, 63 </p></bio><bio xml:lang="en"><p> MD, Tumor Drug Therapy Department no.2, Rostov Research Institute of Oncology </p><p> 63, 14th Line Street, Rostov-on-don, 344037, Russia </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/0000-0001-5371-0709</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Светицкая</surname><given-names>Я. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Svetitskaya</surname><given-names>Ya. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p> кандидат медицинских наук, научный сотрудник отдела лекарственного лечения опухолей</p><p>SPIN-код: 6821-0327. AuthorID (РИНЦ): 571593 </p><p> Россия, 344037, г. Ростов-на-Дону, ул. 14 линия, 63 </p></bio><bio xml:lang="en"><p> MD, PhD, Researcher, Tumor Drug Therapy Department </p><p> 63, 14th Line Street, Rostov-on-don, 344037, Russia </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/0000-0003-0843-6012</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Саманева</surname><given-names>Н. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Samaneva</surname><given-names>N. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат медицинских наук, врач отделения противоопухолевой лекарственной терапии № 2</p><p>SPIN-код: 1181-0659. AuthorID (РИНЦ): 734488</p><p> Россия, 344037, г. Ростов-на-Дону, ул. 14 линия, 63 </p></bio><bio xml:lang="en"><p> MD, PhD, Tumor Drug Therapy Department No. 2 </p><p> 63, 14th Line Street, Rostov-on-don, 344037, Russia </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/0000-0003-1651-5685</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Корнилова</surname><given-names>И. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Kornilova</surname><given-names>I. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p> врач отделения противоопухолевой лекарственной терапии № 2</p><p>SPIN-код: 2612-2949. AuthorID (РИНЦ): 909978</p><p> Россия, 344037, г. Ростов-на-Дону, ул. 14 линия, 63 </p></bio><bio xml:lang="en"><p> MD, Tumor Drug Therapy Department No. 2 </p><p> 63, 14th Line Street, Rostov-on-don, 344037, Russia </p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Пржедецкий</surname><given-names>Ю. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Przhedetskiy</surname><given-names>Yu. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p> доктор медицинских наук, профессор, заведующий отделением реконструктивно-пластической хирургии и онкологии</p><p>SPIN-код: 3888-6265. AuthorID (РИНЦ): 702006 </p><p> Россия, 344037, г. Ростов-на-Дону, ул. 14 линия, 63 </p></bio><bio xml:lang="en"><p> MD, DSc, Professor, Head of Department of Skin, Soft Tissue and Breast Tumors </p><p> 63, 14th Line Street, Rostov-on-don, 344037, Russia </p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Позднякова</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Pozdnyakova</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p> доктор медицинских наук, профессор, ведущий научный сотрудник отдела опухолей мягких тканей и костей</p><p>SPIN-код: 7306-2034. AuthorID (РИНЦ): 700139 </p><p> Россия, 344037, г. Ростов-на-Дону, ул. 14 линия, 63 </p></bio><bio xml:lang="en"><p> MD, DSc, Professor, Head of Department of Skin, Soft Tissue and Breast Tumors </p><p> 63, 14th Line Street, Rostov-on-don, 344037, Russia </p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Абрамова</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Abramova</surname><given-names>N. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p> кандидат медицинских наук, старший научный сотрудник отдела лекарственного лечения опухолей</p><p> SPIN-код: 1784-8819. AuthorID (РИНЦ): 734048 </p><p>Россия, 344037, г. Ростов-на-Дону, ул. 14 линия, 63 </p></bio><bio xml:lang="en"><p> MD, PhD, Senior Researcher, Tumor Drug Therapy Department </p><p> 63, 14th Line Street, Rostov-on-don, 344037, Russia </p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Попова</surname><given-names>И. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Popova</surname><given-names>I. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p> кандидат медицинских наук, старший научный сотрудник отдела лекарственного лечения опухолей</p><p>SPIN-код: 4542-1937. AuthorID (РИНЦ): 413304 </p><p>Россия, 344037, г. Ростов-на-Дону, ул. 14 линия, 63 </p></bio><bio xml:lang="en"><p> MD, PhD, Senior Researcher, Tumor Drug Therapy Department </p><p> 63, 14th Line Street, Rostov-on-don, 344037, Russia </p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Тихановская</surname><given-names>Н. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Tikhanovskaya</surname><given-names>N. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p> кандидат медицинских наук, врач отделения противоопухолевой лекарственной терапии № 1</p><p>SPIN-код: 9000-4877. AuthorID (РИНЦ): 734051 </p><p>Россия, 344037, г. Ростов-на-Дону, ул. 14 линия, 63 </p></bio><bio xml:lang="en"><p> MD, PhD, Tumor Drug Therapy Department </p><p> 63, 14th Line Street, Rostov-on-don, 344037, Russia </p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Льянова</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Lyanova</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p> кандидат медицинских наук, врач отделения противоопухолевой лекарственной терапии № 1</p><p>SPIN-код: 5292-6017. AuthorID (РИНЦ): 734487 </p><p> Россия, 344037, г. Ростов-на-Дону, ул. 14 линия, 63 </p></bio><bio xml:lang="en"><p> MD, PhD, Tumor Drug Therapy Department </p><p> 63, 14th Line Street, Rostov-on-don, 344037, Russia </p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Новоселова</surname><given-names>К. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Novoselova</surname><given-names>K. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p> кандидат медицинских наук, врач отделения противоопухолевой лекарственной терапии № 1</p><p> SPIN-код: 3492-1620. AuthorID (РИНЦ): 734634 </p><p> Россия, 344037, г. Ростов-на-Дону, ул. 14 линия, 63 </p></bio><bio xml:lang="en"><p> MD, PhD, Tumor Drug Therapy Department </p><p> 63, 14th Line Street, Rostov-on-don, 344037, Russia </p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Рядинская</surname><given-names>Л. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Ryadinskaya</surname><given-names>L. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p> кандидат медицинских наук, врач отделения противоопухолевой лекарственной терапии № 1</p><p>SPIN-код: 6146-2396. AuthorID (РИНЦ): 795116 </p><p> Россия, 344037, г. Ростов-на-Дону, ул. 14 линия, 63 </p></bio><bio xml:lang="en"><p> MD, PhD, Tumor Drug Therapy Department </p><p> 63, 14th Line Street, Rostov-on-don, 344037, Russia </p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБУ «Национальный медицинский исследовательский центр онкологии» Министерства здравоохранения Российской Федерации</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National Medical Research Centre of Oncology</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>30</day><month>04</month><year>2021</year></pub-date><volume>20</volume><issue>2</issue><fpage>85</fpage><lpage>92</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Кит О.И., Владимирова Л.Ю., Калабанова Е.А., Сторожакова А.Э., Кабанов С.Н., Снежко Т.А., Миташок И.С., Светицкая Я.В., Саманева Н.Ю., Корнилова И.С., Пржедецкий Ю.В., Позднякова В.В., Абрамова Н.А., Попова И.Л., Тихановская Н.М., Льянова А.А., Новоселова К.А., Рядинская Л.А., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Кит О.И., Владимирова Л.Ю., Калабанова Е.А., Сторожакова А.Э., Кабанов С.Н., Снежко Т.А., Миташок И.С., Светицкая Я.В., Саманева Н.Ю., Корнилова И.С., Пржедецкий Ю.В., Позднякова В.В., Абрамова Н.А., Попова И.Л., Тихановская Н.М., Льянова А.А., Новоселова К.А., Рядинская Л.А.</copyright-holder><copyright-holder xml:lang="en">Kit O.I., Vladimirova L.Y., Kalabanova E.A., Storozhakova A.E., Kabanov S.N., Snezhko T.A., Mitashok I.S., Svetitskaya Y.V., Samaneva N.Y., Kornilova I.S., Przhedetskiy Y.V., Pozdnyakova V.V., Abramova N.A., Popova I.L., Tikhanovskaya N.M., Lyanova A.A., Novoselova K.A., Ryadinskaya L.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.siboncoj.ru/jour/article/view/1760">https://www.siboncoj.ru/jour/article/view/1760</self-uri><abstract><sec><title> Актуальность</title><p> Актуальность. Рак молочной железы (РМЖ) по заболеваемости и смертности среди женского населения в Российской Федерации занимает лидирующие позиции. Прогноз течения заболевания во многом определяется биологическим подтипом опухоли. Для Her2-позитивного РМЖ характерны агрессивное течение и неблагоприятный прогноз. Внедрение в клиническую практику пертузумаба, являющегося рекомбинантным гуманизированным моноклональным антителом к рецепторам эпидермального фактора роста человека 2-го типа, позволило значительно улучшить непосредственные и отдаленные результаты лечения. </p><p>Цель исследования – оценка результатов лечения больных раком молочной железы с Her2-положительным молекулярно-генетическим подтипом при проведении химиотерапии в сочетании с двойной анти-Her2-блокадой, а также степени выраженности и частоты встречаемости побочных эффектов. </p></sec><sec><title>Материал и методы</title><p>Материал и методы. В период с 2015 по 2018 г. 37 пациенткам с Her2-положительным молекулярно-генетическим подтипом рака молочной железы проведена химиотерапия в сочетании с двойной анти-Her2-блокадой (доцетаксел 75мг/м2, внутривенно, в 1-й день + трастузумаб 6 мг/кг (нагрузочная доза – 8 мг/кг), внутривенно, в 1-й день + пертузумаб 420мг (нагрузочная доза – 840мг), внутривенно, в 1-й день, 1 раз в 3 нед). На момент установления диагноза средний возраст был 45,6 ± 11,6 года. </p></sec><sec><title>Результаты</title><p>Результаты. Применение в неоадъювантном режиме пертузумаба в комбинации с трастузумабом и доцетакселом позволило получить полный патоморфологический ответ у 12 % больных, патоморфоз III степени – у 36 %. При использовании данной схемы противоопухолевой лекарственной терапии в неоадъювантном режиме в настоящее время к III клинической группе относятся 64 % пациенток, прогрессирование выявлено у 4 %. Чаще выявлялись следующие побочные эффекты: общая слабость и повышенная утомляемость – в 5,4 %, гематологическая токсичность в виде лейкопении I–II степени – в 5,4 % случаев.</p></sec><sec><title>Заключение</title><p>Заключение. Результаты подтверждают полученную ранее в рандомизированных исследованиях эффективность противоопухолевой лекарственной терапии пертузумабом в комбинации с трастузумабом и доцетакселом у больных Her2-положительным раком молочной железы. </p></sec></abstract><trans-abstract xml:lang="en"><sec><title> Background</title><p> Background. Breast cancer is one of the most common malignancies and one of the leading causes of cancer deaths among women in the Russian Federation. The prognosis of the disease is largely determined by thebiological subtype of the tumor. Her2-positive breast cancer is characterized by an aggressive course and unfavorable prognosis. The use of pertuzumab, a recombinant humanized monoclonal antibody to the human epidermal growth factor receptor 2, significantly improved immediate and long-term treatment outcomes. </p><p>The aim of the study was to evaluate treatment outcomes in patients with Her2-positive molecular subtype of breast cancer receiving chemotherapy combined with a dual anti-Her2 blockade, and to assess the intensityand incidence of side effects. </p></sec><sec><title>Material and methods</title><p>Material and methods. Between 2015 and 2018, 37 patients with Her2-positive breast cancer received chemotherapy combined with a dual anti-HER2 blockade (docetaxel 75 mg/m2 i/v on day 1 + trastuzumab 6 mg/kg (loading dose 8 mg/kg) i/v on day 1 + pertuzumab 420 mg (loading dose 840 mg) i/v on day 1 once every 3 weeks). The mean age of the patients was 45.6 ± 11.6 years. </p></sec><sec><title>Results</title><p>Results. Neoadjuvant pertuzumab in combination with trastuzumab and docetaxel resulted in pathological complete response in 12 % of patients and pathological partial response in 36 % of patients. Among patients who received the above neoadjuvant therapy regimen, disease progression was observed in 4 % of patients. The most common side effects were weakness and fatigue (5.4 % of cases) and grade I–II leukopenia (5.4 %).</p></sec><sec><title>Conclusion</title><p>Conclusion. The study demonstrated the efficacy of antitumor therapy with pertuzumab in combination with trastuzumab and docetaxel as well as the absence of severe side effects associated with this treatment regimen in patients with Her2-positive breast cancer. </p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>рак молочной железы</kwd><kwd>Her2-положительный подтип</kwd><kwd>пертузумаб</kwd><kwd>прогноз</kwd></kwd-group><kwd-group xml:lang="en"><kwd>breast cancer</kwd><kwd>Her2-positive subtype</kwd><kwd>pertuzumab</kwd><kwd>forecast</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">Колядина И.В., Поддубная И.В., Франк Г.А., Комов Д.В., Карселадзе А.И., Ермилова В.Д., Вишневская Я.В. Гетерогенность рака молочной железы I стадии: биологическое и прогностическое значение. 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