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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">tumors</journal-id><journal-title-group><journal-title xml:lang="ru">Malignant tumours</journal-title><trans-title-group xml:lang="en"><trans-title>Malignant tumours</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2224-5057</issn><issn pub-type="epub">2587-6813</issn><publisher><publisher-name>Rosoncoweb</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.18027/2224-5057-2018-8-3-57-67</article-id><article-id custom-type="elpub" pub-id-type="custom">tumors-563</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 ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL REPORTS</subject></subj-group></article-categories><title-group><article-title>ЭФФЕКТИВНОСТЬ ПОДДЕРЖИВАЮЩЕЙ ТЕРАПИИ ПОСЛЕ ОКОНЧАНИЯ ПЕРВОЙ ЛИНИИ ЛЕЧЕНИЯ БОЛЬНЫХ МЕТАСТАТИЧЕСКИМ РАКОМ ТОЛСТОЙ КИШКИ – РЕЗУЛЬТАТЫ ПОПУЛЯЦИОННОГО ИССЛЕДОВАНИЯ</article-title><trans-title-group xml:lang="en"><trans-title>EFFECTIVENESS OF MAINTENANCE THERAPY AFTER THE END OF THE FIRST LINE OF TREATMENT FOR PATIENTS WITH METASTATIC COLORECTAL CANCER – THE RESULTS OF A POPULATION-BASED STUDY</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>Федянин</surname><given-names>М. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Fedyanin</surname><given-names>M. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Михаил Ю. Федянин, д. м. н., с. н. с. отделения клинической фармакологии и химиотерапии.</p><p>Москва.</p></bio><bio xml:lang="en"><p>Mikhail Yu. Fedyanin, MD, DSc Med, Senior Researcher, Department of Clinical Pharmacology and Chemotherapy.</p><p>Moscow.</p></bio><email xlink:type="simple">fedianinmu@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>Алиева</surname><given-names>Ш. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Aliyeva</surname><given-names>Sh. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Шамай А. Алиева, врач-онколог.</p><p>Сургут.</p></bio><bio xml:lang="en"><p>Shamai A. Aliyeva, MD, oncologist.</p><p>Surgut.</p></bio><email xlink:type="simple">alievashamai@mail.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>Владимирова</surname><given-names>Л. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Vladimirova</surname><given-names>L. Y.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Любовь Ю. Владимирова, д. м. н., проф., руководитель отдела лекарственных методов лечения опухолей.</p><p>Ростов-на-Дону.</p></bio><bio xml:lang="en"><p>Lyubov Yu. Vladimirova, MD, DSc Med, Professor, Head of the Department of Medicinal Methods of Treatment of Tumors.</p><p>Rostov-on-Don.</p></bio><email xlink:type="simple">vlu@aaanet.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Иванов</surname><given-names>А. H.</given-names></name><name name-style="western" xml:lang="en"><surname>Ivanov</surname><given-names>A. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Александр Н. Иванов, врач-онколог, зав. дневным стационаром.</p><p>Чебоксары.</p></bio><bio xml:lang="en"><p>Alexander N. Ivanov, MD, oncologist, Head of the Day Hospital.</p><p>Cheboksary.</p></bio><email xlink:type="simple">fktcfylhbdfyjd@mail.ru</email><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Катков</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Katkov</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алексей А. Катков, врач-онколог.</p><p>Саратов.</p></bio><bio xml:lang="en"><p>Alexey A. Katkov, MD, oncologist.</p><p>Saratov.</p></bio><email xlink:type="simple">katkovdoc@mail.ru</email><xref ref-type="aff" rid="aff-5"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кузьмина</surname><given-names>E. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Kuzmina</surname><given-names>E. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Евгения С. Кузьмина, врач-онколог, гл. внештатный онколог ЯНАО.</p><p>Салехард.</p></bio><bio xml:lang="en"><p>Evgeniya S. Kuzmina, MD, oncologist.</p><p>Salekhard.</p></bio><email xlink:type="simple">evgeniakuzmina1@rambler.ru</email><xref ref-type="aff" rid="aff-6"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кулик</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kulik</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Валерий В. Кулик, врач-онколог.</p><p>Владивосток.</p></bio><bio xml:lang="en"><p>Valeriy V. Kulik, MD, oncologist.</p><p>Vladivostok.</p></bio><email xlink:type="simple">Kulik_v_v@mail.ru</email><xref ref-type="aff" rid="aff-7"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Матюшина</surname><given-names>Е. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Matyushina</surname><given-names>E. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Елена И. Матюшина, врач-химиотерапевт, зав. отделением химиотерапии.</p><p>Сыктывкар.</p></bio><bio xml:lang="en"><p>Elena I. Matyushina, MD, chemotherapist, Head of the Department of Chemotherapy.</p><p>Syktyvkar.</p></bio><email xlink:type="simple">e.matyushinae@rambler.ru</email><xref ref-type="aff" rid="aff-8"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Никитина</surname><given-names>Л. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Nikitina</surname><given-names>L. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лариса Ю. Никитина, врач-онколог, химиотерапевт, зав. поликлиникой.</p><p>Оренбург.</p></bio><bio xml:lang="en"><p>Larisa Y. Nikitina, MD, oncologist, Head of the Polyclinic.</p><p>Orenburg.</p></bio><email xlink:type="simple">l.nikitina@mail.ru</email><xref ref-type="aff" rid="aff-9"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Орлова</surname><given-names>Р. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Orlova</surname><given-names>R. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Рашида В. Орлова, д. м. н., проф. кафедры онкологии СпбГУ; врач-химиотерапевт.</p><p>Санкт-Петербург.</p></bio><bio xml:lang="en"><p>Rashida V. Orlova, MD, DSc Med, Professor, Department of Oncology SPbU; chemotherapist.</p><p>St. Petersburg.</p></bio><email xlink:type="simple">orlova_rashida@mail.ru</email><xref ref-type="aff" rid="aff-10"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Повышев</surname><given-names>А. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Povyshev</surname><given-names>A. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Антон Ю. Повышев, врач-химиотерапевт.</p><p>Ханты-Мансийск.</p></bio><bio xml:lang="en"><p>Anton Yu. Povyshev, MD, chemotherapist.</p><p>Khanty-Mansiysk.</p></bio><email xlink:type="simple">pa-81@bk.ru</email><xref ref-type="aff" rid="aff-11"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Пшеволоцкий</surname><given-names>Э. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Pshevlotskiy</surname><given-names>E. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Эдуард М. Пшеволоцкий, врач-онколог.</p><p>Омск.</p></bio><bio xml:lang="en"><p>Eduard M. Pshevlotskiy, MD, oncologist.</p><p>Omsk.</p></bio><email xlink:type="simple">doktormarianovich@gmail.com</email><xref ref-type="aff" rid="aff-12"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Рамазанова</surname><given-names>М. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Ramazanova</surname><given-names>M. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мадина С. Рамазанова, врач-химиотерапевт, к. м. н., доцент кафедры онкологии.</p><p>Киров.</p></bio><bio xml:lang="en"><p>Madina S. Ramazanova, MD, PhD Med, chemotherapist, Associate Professor of the Department of Oncology.</p><p>Kirov.</p></bio><email xlink:type="simple">ramazanovam@indox.ru</email><xref ref-type="aff" rid="aff-13"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Смирнова</surname><given-names>E. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Smirnova</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Елена В. Смирнова, врач-онколог.</p><p>Санкт-Петербург.</p></bio><bio xml:lang="en"><p>Elena V. Smirnova, MD, oncologist, City Hospital No. 9.</p><p>St. Petersburg.</p></bio><email xlink:type="simple">dr.smirnova09@gmail.com</email><xref ref-type="aff" rid="aff-14"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ткачук</surname><given-names>А. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Tkachuk</surname><given-names>A. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Александра Д. Ткачук, врач-химиотерапевт.</p><p>Тюмень.</p></bio><bio xml:lang="en"><p>Alexandra D. Tkachuk, MD, chemotherapist.</p><p>Tyumen.</p></bio><email xlink:type="simple">doctor_x86@mail.ru</email><xref ref-type="aff" rid="aff-15"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Уланова</surname><given-names>H. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Ulanova</surname><given-names>N. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Наталья В. Уланова, врач-химиотерапевт.</p><p>Сургут.</p></bio><bio xml:lang="en"><p>Natalya V. Ulanova, MD, chemotherapist.</p><p>Surgut.</p></bio><email xlink:type="simple">scorpion2187onco@mail.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>Шалофаст</surname><given-names>О. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Shalofast</surname><given-names>O. 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Erdniev, MD, chemotherapist, Head of the Department of Chemotherapy.</p><p>St. Petersburg.</p></bio><email xlink:type="simple">oncosanal@list.ru</email><xref ref-type="aff" rid="aff-10"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Тюляндин</surname><given-names>С. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Tjulandin</surname><given-names>S. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сергей А. Тюляндин, д. м. н., проф., зав. отделением клинической фармакологии и химиотерапии.</p><p>Москва.</p></bio><bio xml:lang="en"><p>Sergey A. Tjulandin, MD, DSc Med, Professor, Head of the Department of Clinical Pharmacology and Chemotherapy.</p><p>Moscow.</p></bio><email xlink:type="simple">stjulandin@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБУ «НМИЦ онкологии им. Н. Н. Блохина» Министерства здравоохранения РФ.</institution><country>Россия</country></aff><aff xml:lang="en"><institution>N. N. Blokhin Russian Cancer Research Center.</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>БУ «Сургутская окружная клиническая больница».</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Surgut Сlinical Hospital.</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>ФГБУ «Ростовский научно-исследовательский онкологический институт» Министерства здравоохранения РФ.</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Rostov Research Institute of Oncology (RRIO).</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>АУ «Республиканский клинический онкологический диспансер» Министерства здравоохранения Чувашской республики.</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Chuvashiya Oncological Clinical Centre.</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-5"><aff xml:lang="ru"><institution>ГБУЗ «Областной онкологический диспансер № 2».</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Saratov Regional Oncolgical Сlinic.</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-6"><aff xml:lang="ru"><institution>ГБУЗ «Салехардская окружная клиническая больница».</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Salekhard Clinical Hospital.</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-7"><aff xml:lang="ru"><institution>ГБУЗ «Приморский Краевой онкологический диспансер»,.</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Primorsky Regional Oncological Centre.</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-8"><aff xml:lang="ru"><institution>ГУ «Коми республиканский онкологический диспансер».</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Komi Republic Oncological Centre.</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-9"><aff xml:lang="ru"><institution>ГБУЗ «Оренбургский областной клинический онкологический диспансер».</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Orenburg Regional Oncological Centre.</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-10"><aff xml:lang="ru"><institution>СПб ГБУЗ «Городской клинический онкологический диспансер».</institution><country>Россия</country></aff><aff xml:lang="en"><institution>St. Petersburg City Clinical Oncology Centre.</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-11"><aff xml:lang="ru"><institution>БУ Ханты-Мансийского автономного округа – Югры «Окружная к линическая больница»,.</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Khanty-Mansiysk Clinical Hospital.</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-12"><aff xml:lang="ru"><institution>БУЗ Омской области «Клинический онкологический диспансер».</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Omsk Oncological Centre.</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-13"><aff xml:lang="ru"><institution>ФГБОУ ВО «Кировский государственный медицинский университет» Министерства здравоохранения РФ.</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Kirov State Medical Universit y/</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-14"><aff xml:lang="ru"><institution>Спб ГБУЗ «Городская больница № 9», Санкт-Петербургский научно-практический центр колопроктологии.</institution><country>Россия</country></aff><aff xml:lang="en"><institution>City Hospital No. 9, City Scientific Practical Centre of Coloproctology.</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-15"><aff xml:lang="ru"><institution>ГАУЗ Тюменской области «Многопрофильный клинический медицинский центр «Медицинский город».</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Tyumen Medical Multifunctional Centre.</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2018</year></pub-date><pub-date pub-type="epub"><day>13</day><month>11</month><year>2018</year></pub-date><volume>8</volume><issue>3</issue><fpage>57</fpage><lpage>67</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Федянин М.Ю., Алиева Ш.А., Владимирова Л.Ю., Иванов А.H., Катков А.А., Кузьмина E.С., Кулик В.В., Матюшина Е.И., Никитина Л.Ю., Орлова Р.В., Повышев А.Ю., Пшеволоцкий Э.М., Рамазанова М.С., Смирнова E.В., Ткачук А.Д., Уланова H.В., Шалофаст О.В., Эрдниев С.П., Тюляндин С.А., 2018</copyright-statement><copyright-year>2018</copyright-year><copyright-holder xml:lang="ru">Федянин М.Ю., Алиева Ш.А., Владимирова Л.Ю., Иванов А.H., Катков А.А., Кузьмина E.С., Кулик В.В., Матюшина Е.И., Никитина Л.Ю., Орлова Р.В., Повышев А.Ю., Пшеволоцкий Э.М., Рамазанова М.С., Смирнова E.В., Ткачук А.Д., Уланова H.В., Шалофаст О.В., Эрдниев С.П., Тюляндин С.А.</copyright-holder><copyright-holder xml:lang="en">Fedyanin M.Y., Aliyeva S.A., Vladimirova L.Y., Ivanov A.N., Katkov A.A., Kuzmina E.S., Kulik V.V., Matyushina E.I., Nikitina L.Y., Orlova R.V., Povyshev A.Y., Pshevlotskiy E.M., Ramazanova M.S., Smirnova E.V., Tkachuk A.D., Ulanova N.V., Shalofast O.V., Erdniev S.P., Tjulandin S.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.malignanttumors.org/jour/article/view/563">https://www.malignanttumors.org/jour/article/view/563</self-uri><abstract><sec><title>Цель</title><p>Цель. Оценить эффективность различных режимов поддерживающей терапии после окончания первой линии лечения больных метастатическим раком толстой кишки.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Проведен анализ индивидуальных карт 432 пациентов 17 клиник 14 регионов РФ, которые начали терапию по поводу метастатического рака в 2013 г. Основным критерием отбора в исследование являлось отсутствие прогрессирования в течение первых 16 нед. терапии первой линии. Проведено сравнение четырех групп пациентов в зависимости от характера поддерживающей терапии: получавших фторпиримидины, комбинацию фторпиримидинов с бевацизумабом, бевацизумаб в монорежиме и анти-EGFR антитела. Основными критериями оценки эффективности лечения считались выживаемость без прогрессирования и общая выживаемость. Статистический анализ проводился в пакете программ SPSS 20.0.</p></sec><sec><title>Результаты</title><p>Результаты. Поддерживающая терапия после завершения первой линии лечения была назначена 126 пациентам, большинству проводилась терапия фторпиримидинами (53,1 %). Медиана продолжительности жизни в группе поддерживающей терапии составила 27 мес. против 21 мес. в группе наблюдения (р=0,01, ОР=0,78, 95 % ДИ 0,6–1,02). Медиана выживаемости без прогрессирования – 11 против 7 мес. (p&lt;0,001, ОР=0,6, 95 % ДИ 0,5–0,8). Наихудшие результаты выживаемости без прогрессирования наблюдались в группе поддерживающего лечения мототерапии бевацизумабом: медиана 10 мес. против 12 мес. в группе монотерапии фторпиримидинами, 10 мес. в группе комбинации фторпиримидинов с бевацизумабом и 14 мес. в группе монотерапии анти-EGFR антителами (р=0,9, ОР=1,0, 95 % ДИ 0,9–1,2).</p></sec><sec><title>Выводы</title><p>Выводы. Не получено статистических различий в выживаемости при применении различных режимов поддерживающей терапии. Монотерапия бевацизумабом в поддерживающем лечении была ассоциирована с наименьшими показателями выживаемости пациентов.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Aim</title><p>Aim. To evaluate the effectiveness of different regimens of maintenance chemotherapy after the first line of treatment for patients with metastatic colorectal cancer.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. We performed retrospective analyses of the data from 432 patients from 17 clinics in 14 regions of the Russian Federation who started systemic therapy for metastatic cancer in 2013. The main inclusion criterion was objective response or stabilization after the first 16 weeks of first-line therapy. Four groups of patients were compared, depending on the nature of maintenance therapy: those receiving fluoropyrimidines, a combination of fluoropyrimidines with bevacizumab, monotherapy of bevacizumab and monotherapy of anti-EGFR antibodies. The main criteria for assesment of the effectiveness of treatment were progression-free survival and overall survival. The statistical analysis was performed with the SPSS 20.0 sof tware package.</p></sec><sec><title>Results</title><p>Results. Maintenance therapy after completion of the first 16 weeks of the 1st line of chemotherapy was administered in 126 patients, most of them were treated with fluoropyrimidines (53.1 %). The median overall survival in the maintenance group was 27 versus 21 months in the observation group, p=0.01, HR=0.78 (95 % CI 0.6–1.02) Median progression-free survival in the maintenance group was 11 vs 7 months in the observation group (p&lt;0.001, HR=0.6, 95 % CI 0.5–0.8). The worst results of progression-free survival were observed in the group with monotherapy of bevacizumab – median was 10 months versus 12 months in the fluoropyrimidine monotherapy group, 10 months for the combination of fluoropyrimidine with bevacizumab and 14 months for monotherapy of the anti-EGFR (p=0,9, HR=1.0, 95 % CI 0.9–1.2).</p></sec><sec><title>Conclusions</title><p>Conclusions. There were no statistical differences in survival with different regimens of maintenance therapy. Monotherapy of bevacizumab in maintenance treatment was associated with the worst sur vival rates.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>рак толстой кишки</kwd><kwd>популяционное исследование</kwd><kwd>поддерживающая химиотерапия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>colorectal cancer</kwd><kwd>population study</kwd><kwd>maintenance 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">de Gramont A., Figer A., Seymour M. et al. Leucovorin and fluorouracil with or without oxaliplatin as first-line treatment in advanced colorectal cancer. J. Clin. Oncol. 2000. Vol. 18. P. 2938–2947.</mixed-citation><mixed-citation xml:lang="en">de Gramont A., Figer A., Seymour M. et al. Leucovorin and fluorouracil with or without oxaliplatin as first-line treatment in advanced colorectal cancer. J. Clin. Oncol. 2000. Vol. 18. 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