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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">medalphabet</journal-id><journal-title-group><journal-title xml:lang="ru">Медицинский алфавит</journal-title><trans-title-group xml:lang="en"><trans-title>Medical alphabet</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2078-5631</issn><issn pub-type="epub">2949-2807</issn><publisher><publisher-name>ООО «Альфмед»</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.33667/2078-5631-2021-19-54-63</article-id><article-id custom-type="elpub" pub-id-type="custom">medalphabet-2134</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>Статьи</subject></subj-group></article-categories><title-group><article-title>Современная стратегия лечения метастатического колоректального рака – ключ к увеличению продолжительности жизни пациентов с метастатическим колоректальным раком без мутаций в генах RAS</article-title><trans-title-group xml:lang="en"><trans-title>Modern strategy for treatment of metastatic colorectal cancer as key to increasing life expectancy of patients with metastatic colorectal cancer without mutations in RAS genes</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7728-9533</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Артамонова</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Artamonova</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Артамонова Елена Владимировна, д. м. н., зав. онкологическим отделением лекарственных методов лечения (химиотерапевтическим № 1) , проф. кафедры онкологии и лучевой терапии лечебного факультета</p><p>SPIN: 2483–6309. Author ID: 707707</p></bio><bio xml:lang="en"><p>Artamonova Elena V., DM Sci, head of Oncology Dept of Medicinal Methods of Treatment (Chemotherapy No. 1) , prof. at Dept of Oncology and Radiation Therapy, Faculty of Medicine</p><p>SPIN: 2483–6309. Author ID: 707707</p></bio><email xlink:type="simple">artamonovae@mail.ru</email><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 имени Н. Н. Блохина» Минздрава России; ФГАОУ ВО «Российский национальный исследовательский медицинский университет имени Н. И. Пирогова» Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National Medical Research Centre of Oncology n.a. N. N. Blokhin; Russian National Research Medical University n.a. N. I. Pirogov</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>18</day><month>08</month><year>2021</year></pub-date><volume>0</volume><issue>19</issue><issue-title>Диагностика и онкотерапия (2)</issue-title><fpage>54</fpage><lpage>63</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Артамонова Е.В., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Артамонова Е.В.</copyright-holder><copyright-holder xml:lang="en">Artamonova E.V.</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.med-alphabet.com/jour/article/view/2134">https://www.med-alphabet.com/jour/article/view/2134</self-uri><abstract><p>Обзор посвящен месту цетуксимаба в лечении метастатического колоректального рака (мКРР) без мутаций в генах RAS (RAS wt) и BRAF (BRAF wt) в зависимости от целей терапии, а также анализу влияния различных факторов, включая локализацию первичной опухоли, на эффективность лечения. Рандомизированные клинические исследования и проведенные на их основе метаанализы позволяют сделать вывод о том, что цетуксимаб в комбинации с инфузионным дуплетом или триплетом обеспечивает максимальную частоту глубоких и ранних объективных ответов независимо от локализации первичной опухоли. Препарат превосходит по этому показателю как одну химиотерапию (ХТ), так и комбинацию ХТ с бевацизумабом, что важно в плане достижения резектабельности у пациентов с потенциально резектабельными метастазами. Для пациентов с левосторонней локализацией первичной опухоли и RAS wt цетуксимаб, назначенный в первой линии, обеспечивает достоверное и клинически значимое увеличение продолжительности жизни. Отсрочка начала его применения до 2–4-го цикла ХТ (до получения результата молекулярно-генетического исследования) не оказывает негативного влияния на эффективность первой линии терапии мКРР RAS wt, а при левосторонней локализации первичной опухоли ХТ с отсроченным цетуксимабом превосходит немедленное назначение ХТ с бевацизумабом по ЧОО, ОВ и ВБП. Оптимальная продолжительность индукционной химио-таргетной терапии составляет 3–4 месяца (6–8 курсов), после чего целесообразно переходить на поддерживающее лечение одним цетуксимабом. Новый режим введения цетуксимаба раз в 2 недели в дозировке 500 мг/м2 внутривенной инфузии обеспечивает максимальное удобство его применения.</p></abstract><trans-abstract xml:lang="en"><p>The review is devoted to the place of cetuximab in the treatment of metastatic colorectal cancer (mCRC) without mutations in the RAS (RAS wt) and BRAF (BRAF wt) genes, depending on the goals of therapy, as well as to the analysis of the inflence of various factors, including the localization of the primary tumor, on the effectiveness of treatment. Randomized clinical trials and meta-analyses conducted on their basis allow us to conclude that cetuximab in combination with an infusion doublet or triplet provides the maximum frequency of deep and early objective responses, regardless of the location of the primary tumor. The drug is superior in this parameter to both a single chemotherapy (CT) and a combination of CT with bevacizumab which is important in terms of achieving resectability in patients with potentially resectable metastases. For patients with left-sided localization of the primary tumor and RAS wt, cetuximab, prescribed in the 1st line, provides a reliable and clinically signifiant increase in life expectancy. Postponing the start of its use until 2–4 cycles of CT (until the result of a molecular genetic study is obtained) does not negatively affect the effectiveness of the 1st line of therapy for mCRC RAS wt, and with left-sided localization of the primary tumor, CT with delayed cetuximab exceeds the usage of CT with bevacizumab from the fist cycle for ORR, OS and PFS. The optimal duration of induction chemo-targeted therapy is 3–4 months (6–8 courses), after which it is advisable to switch to maintenance treatment with one cetuximab. The new mode of administration of cetuximab once every 2 weeks at a dosage of 500 mg/m 2 IV provides maximum convenience of its use.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>метастатический колоректальный рак</kwd><kwd>RAS/BRAF wt</kwd><kwd>цетуксимаб</kwd><kwd>1 ‑я линия терапии</kwd></kwd-group><kwd-group xml:lang="en"><kwd>metastatic colorectal cancer</kwd><kwd>RAS/BRAF wt</kwd><kwd>cetuximab</kwd><kwd>1st line of therapy</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">https://pub.s7.exacttarget.com/3lwjocnzbai</mixed-citation><mixed-citation xml:lang="en">https://pub.s7.exacttarget.com/3lwjocnzbai</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">https://static-0.minzdrav.gov.ru/system/attachments/attaches/000/046/709/original/FP_Bor’ba_s_onkologicheskimi_zabolevaniyami.pdf?1565344164</mixed-citation><mixed-citation xml:lang="en">https://static-0.minzdrav.gov.ru/system/attachments/attaches/000/046/709/original/FP_Bor’ba_s_onkologicheskimi_zabolevaniyami.pdf?1565344164</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">https://nop2030.ru/fies/2017/11/national-strategy.pdf</mixed-citation><mixed-citation xml:lang="en">https://nop2030.ru/fies/2017/11/national-strategy.pdf</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Weber SM, Jarnagin WR, DeMatteo RP et al. 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