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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="other" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Tumors of female reproductive system</journal-id><journal-title-group><journal-title xml:lang="en">Tumors of female reproductive system</journal-title><trans-title-group xml:lang="ru"><trans-title>Опухоли женской репродуктивной системы</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1994-4098</issn><issn publication-format="electronic">1999-8627</issn><publisher><publisher-name xml:lang="en">Publishing House ABV Press</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">578</article-id><article-id pub-id-type="doi">10.17650/1994-4098-2018-14-1-52-60</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>MAMMOLOGY. REVIEWS</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>МАММОЛОГИЯ. ОБЗОРНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">PRACTICAL ASPECTS OF ADMINISTERING CYCLIN-DEPENDENT KINASES INHIBITORS: EFFICACY AND TOLERABILITY</article-title><trans-title-group xml:lang="ru"><trans-title>ПРАКТИЧЕСКИЕ АСПЕКТЫ КЛИНИЧЕСКОГО ПРИМЕНЕНИЯ НОВОГО КЛАССА ПРЕПАРАТОВ – ИНГИБИТОРОВ ЦИКЛИНЗАВИСИМЫХ КИНАЗ: ЭФФЕКТИВНОСТЬ И ПЕРЕНОСИМОСТЬ ЛЕЧЕНИЯ</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Artamonova</surname><given-names>E. V.</given-names></name><name xml:lang="ru"><surname>Артамонова</surname><given-names>Е. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p><italic>23 Kashirskoe Shosse, Moscow 115478</italic></p></bio><bio xml:lang="ru"><p><bold>Артамонова Елена Владимировна</bold></p><p><italic>115478 Москва, Каширское шоссе, 23</italic></p></bio><email>artamonovae@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">N.N. Blokhin National Medical Research Center of Oncology, Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">ФГБУ «Национальный медицинский исследовательский центр онкологии им. Н.Н. Блохина» Минздрава России</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2018-04-12" publication-format="electronic"><day>12</day><month>04</month><year>2018</year></pub-date><volume>14</volume><issue>1</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>52</fpage><lpage>60</lpage><history><date date-type="received" iso-8601-date="2018-04-11"><day>11</day><month>04</month><year>2018</year></date><date date-type="accepted" iso-8601-date="2018-04-11"><day>11</day><month>04</month><year>2018</year></date></history><permissions><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/></permissions><self-uri xlink:href="https://ojrs.abvpress.ru/ojrs/article/view/578">https://ojrs.abvpress.ru/ojrs/article/view/578</self-uri><abstract xml:lang="en"><p><italic>Although metastatic breast cancer remains an incurable disease, significant achievements have been made in this area over the recent years, allowing to convert breast cancer into a chronically controlled disease characterized by a torpid course. Patients with hormone-sensitive HER2-negative cancer are more likely to achieve this relatively favorable clinical outcome. It became possible with the development and implementation of highly effective combination treatment regimens that include recently developed inhibitors of cyclin-dependent kinases (CDK) 4 and 6. This article presents an overview of randomized clinical trials assessing the efficacy and safety of CDK4/6 inhibitors. It is shown that neutropenia is class-specific undesirable effect and characterizes all 3 drugs (palbociclib, ribociclib, abemaciclib); ribociclib therapy, in addition, is associated with hepatoand cardiotoxicity (prolongation of QTc interval); abemaciclib, in addition to neutropenia, is characterized by diarrhea and thromboembolic events. </italic></p></abstract><trans-abstract xml:lang="ru"><p><italic>Метастатический рак молочной железы остается неизлечимым заболеванием, однако в последние годы в этой области были достигнуты весьма существенные успехи, позволяющие говорить о возможности его перевода в хроническую форму, характеризующуюся длительным торпидным течением. Особенно высока вероятность достижения относительно благоприятного клинического исхода при гормонозависимом HER2</italic><italic>‑</italic><italic>отрицательном подтипе опухоли. Такой результат стал возможен благодаря разработке и внедрению в клиническую практику высокоэффективной комбинированной лечебной стратегии, связанной с появлением нового класса лекарств – ингибиторов циклинзависимых киназ (CDK) 4 и 6. В статье представлен обзор результатов рандомизированных клинических исследований представителей этого класса препаратов с данными по их эффективности и безопасности. Показано, что нейтропения является класс-специфическим нежелательным явлением и характерна для всех 3 препаратов (палбоциклиба, рибоциклиба и абемациклиба); терапия рибоциклибом, кроме того, ассоциирована с гепатои кардиотоксичностью (удлинением интервала QTc); для абемациклиба, помимо нейтропении, характерны диарея и тромбоэмболии. </italic></p></trans-abstract><kwd-group xml:lang="en"><kwd>metastatic breast cancer</kwd><kwd>hormone therapy</kwd><kwd>palbociclib</kwd><kwd>ribociclib</kwd><kwd>abemaciclib</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>метастатический рак молочной железы</kwd><kwd>гормонотерапия</kwd><kwd>палбоциклиб</kwd><kwd>рибоциклиб</kwd><kwd>абемациклиб</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Rugo H.S., Rumble R.B., Macrae E. et al. 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