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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">Surgery and Oncology</journal-id><journal-title-group><journal-title xml:lang="en">Surgery and Oncology</journal-title><trans-title-group xml:lang="ru"><trans-title>Хирургия и онкология</trans-title></trans-title-group></journal-title-group><issn publication-format="electronic">2949-5857</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">491</article-id><article-id pub-id-type="doi">10.17650/2686-9594-2021-11-1-11-20</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>ORIGINAL REPORT</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНОЕ ИССЛЕДОВАНИЕ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">Toxicity and efficacy of biosimilar bevacizumab in the second-line therapy for metastatic colon cancer in routine clinical practice: results of an independent observational study</article-title><trans-title-group xml:lang="ru"><trans-title>Независимое наблюдательное исследование по оценке токсичности и эффективности биоаналога бевацизумаба во 2‑й линии лечения метастатического рака толстой кишки в рутинной клинической практике</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5615-7806</contrib-id><name-alternatives><name xml:lang="en"><surname>Fedyanin</surname><given-names>M.   Yu.</given-names></name><name xml:lang="ru"><surname>Федянин</surname><given-names>М. Ю.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Mikhail Yuryevich Fedyanin </p><p>24 Kashirskoe Shosse; Moscow 115478</p></bio><bio xml:lang="ru"><p>Михаил Юрьевич Федянин  </p><p>115478 Москва, Каширское шоссе, 24</p></bio><email>fedianinmu@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Moiseenko</surname><given-names>F.   V.</given-names></name><name xml:lang="ru"><surname>Моисеенко</surname><given-names>Ф. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>68A Leningradskaya St., Pesochnyy Settlement, Saint Petersburg 197758</p></bio><bio xml:lang="ru"><p>197758 Санкт-Петербург, пос. Песочный, Ленинградская ул., 68А</p></bio><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Lyadova</surname><given-names>M.   A.</given-names></name><name xml:lang="ru"><surname>Лядова</surname><given-names>М. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Build. 1A, possession 2, 6th km Pyatnitskoe Shosse, Otradnoe, Moscow Region 143442</p></bio><bio xml:lang="ru"><p>143442 Московская область, пос. Отрадное, Пятницкое шоссе, 6-й км, влд. 2, стр. 1А</p></bio><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Vorobyeva</surname><given-names>V.  N. </given-names></name><name xml:lang="ru"><surname>Воробьева</surname><given-names>В. Н.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>9B Blyukhera St., Chelyabinsk 454048</p></bio><bio xml:lang="ru"><p>454048 Челябинск, ул. Блюхера, 9В</p></bio><xref ref-type="aff" rid="aff4"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Petkau</surname><given-names>V.  V. </given-names></name><name xml:lang="ru"><surname>Петкау</surname><given-names>В. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>29 Soboleva St., Ekaterinburg 620036</p></bio><bio xml:lang="ru"><p>620036 Екатеринбург, ул. Соболева, 29</p></bio><xref ref-type="aff" rid="aff5"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Fateeva</surname><given-names>A.  V. </given-names></name><name xml:lang="ru"><surname>Фатеева</surname><given-names>А. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>10/25 Ayaks, Russkiy Island, Vladivostok 690922</p><p>57A Russkaya St., Vladivostok 690069</p></bio><bio xml:lang="ru"><p>690922 Владивосток, о. Русский, пос. Аякс, 10, корп. 25</p><p>690069 Владивосток, ул. Русская, 57А</p></bio><xref ref-type="aff" rid="aff6"/><xref ref-type="aff" rid="aff7"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname> Kuzmina</surname><given-names>E.  S.</given-names></name><name xml:lang="ru"><surname>Кузьмина</surname><given-names>Е. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>39 Mira St., Salekhard 629001</p></bio><bio xml:lang="ru"><p>629001 Салехард, ул. Мира, 39</p></bio><xref ref-type="aff" rid="aff8"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Novikova</surname><given-names>O.  Yu. </given-names></name><name xml:lang="ru"><surname>Новикова</surname><given-names>О. Ю.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>164 Voronezhskoe Shosse, Khabarovsk 680042</p></bio><bio xml:lang="ru"><p>680042 Хабаровск, Воронежское шоссе, 164</p></bio><xref ref-type="aff" rid="aff9"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Chubenko</surname><given-names>V.   A.</given-names></name><name xml:lang="ru"><surname>Чубенко</surname><given-names>В. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>68A Leningradskaya St., Pesochnyy Settlement, Saint Petersburg 197758</p></bio><bio xml:lang="ru"><p>197758 Санкт-Петербург, пос. Песочный, Ленинградская ул., 68А</p></bio><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname> Abduloeva</surname><given-names>N.  Kh.</given-names></name><name xml:lang="ru"><surname>Абдулоева</surname><given-names>Н. Х.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>68A Leningradskaya St., Pesochnyy Settlement, Saint Petersburg 197758</p></bio><bio xml:lang="ru"><p>197758 Санкт-Петербург, пос. Песочный, Ленинградская ул., 68А</p></bio><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kudryavtsev</surname><given-names>A.  A. </given-names></name><name xml:lang="ru"><surname>Кудрявцев</surname><given-names>А. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>68A Leningradskaya St., Pesochnyy Settlement, Saint Petersburg 197758</p></bio><bio xml:lang="ru"><p>197758 Санкт-Петербург, пос. Песочный, Ленинградская ул., 68А</p></bio><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Ignatova</surname><given-names>E.   O.</given-names></name><name xml:lang="ru"><surname>Игнатова</surname><given-names>Е. О.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>68A Leningradskaya St., Pesochnyy Settlement, Saint Petersburg 197758</p></bio><bio xml:lang="ru"><p>197758 Санкт-Петербург, пос. Песочный, Ленинградская ул., 68А</p></bio><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Shakirov</surname><given-names>R.   R.</given-names></name><name xml:lang="ru"><surname>Шакиров</surname><given-names>Р. Р.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>68A Leningradskaya St., Pesochnyy Settlement, Saint Petersburg 197758</p></bio><bio xml:lang="ru"><p>197758 Санкт-Петербург, пос. Песочный, Ленинградская ул., 68А</p></bio><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Pardabekova</surname><given-names>O.  A. </given-names></name><name xml:lang="ru"><surname>Пардабекова</surname><given-names>О. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Build. 1A, possession 2, 6th km Pyatnitskoe Shosse, Otradnoe, Moscow Region 143442</p></bio><bio xml:lang="ru"><p>143442 Московская область, пос. Отрадное, Пятницкое шоссе, 6-й км, влд. 2, стр. 1А</p></bio><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname> Kindyalova</surname><given-names>L.  V.</given-names></name><name xml:lang="ru"><surname>Киндялова</surname><given-names>Л. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>164 Voronezhskoe Shosse, Khabarovsk 680042</p></bio><bio xml:lang="ru"><p>680042 Хабаровск, Воронежское шоссе, 164</p></bio><xref ref-type="aff" rid="aff9"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Pelikh</surname><given-names>S.  P. </given-names></name><name xml:lang="ru"><surname>Пелих</surname><given-names>С. П.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>164 Voronezhskoe Shosse, Khabarovsk 680042</p></bio><bio xml:lang="ru"><p>680042 Хабаровск, Воронежское шоссе, 164</p></bio><xref ref-type="aff" rid="aff9"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Gladkov</surname><given-names>O.   A.</given-names></name><name xml:lang="ru"><surname>Гладков</surname><given-names>О. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>9B Blyukhera St., Chelyabinsk 454048</p></bio><bio xml:lang="ru"><p>454048 Челябинск, ул. Блюхера, 9В</p></bio><xref ref-type="aff" rid="aff4"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9807-2229</contrib-id><name-alternatives><name xml:lang="en"><surname> Tjulandin</surname><given-names>S.  A.</given-names></name><name xml:lang="ru"><surname>Тюляндин</surname><given-names>С. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>24 Kashirskoe Shosse; Moscow 115478</p></bio><bio xml:lang="ru"><p>115478 Москва, Каширское шоссе, 24</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2245-214X</contrib-id><name-alternatives><name xml:lang="en"><surname>Tryakin</surname><given-names>A.  A. </given-names></name><name xml:lang="ru"><surname>Трякин</surname><given-names>А. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>24 Kashirskoe Shosse; Moscow 115478</p></bio><bio xml:lang="ru"><p>115478 Москва, Каширское шоссе, 24</p></bio><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">N.N. Blokhin Russian Cancer Research Center, 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><aff-alternatives id="aff2"><aff><institution xml:lang="en">Saint Petersburg Clinical Research Center for Specialized Medical Care (Oncology)</institution></aff><aff><institution xml:lang="ru">ГБУЗ «Санкт-Петербургский клинический научно-практический центр специализированных видов медицинской помощи (онкологический)»</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Group of companies “Medsi”, Clinical Hospital No. 1 “Medsi”</institution></aff><aff><institution xml:lang="ru">АО группа компаний «Медси», клиническая больница № 1 «Медси»</institution></aff></aff-alternatives><aff-alternatives id="aff4"><aff><institution xml:lang="en">Evimed LLC</institution></aff><aff><institution xml:lang="ru">ООО «Эвимед»</institution></aff></aff-alternatives><aff-alternatives id="aff5"><aff><institution xml:lang="en">Sverdlovsk Regional Oncology Dispensary</institution></aff><aff><institution xml:lang="ru">ГАУЗ СО «Свердловский областной онкологический диспансер»</institution></aff></aff-alternatives><aff-alternatives id="aff6"><aff><institution xml:lang="en">Medical Center, Far Eastern Federal University</institution></aff><aff><institution xml:lang="ru">Медицинский центр ФГАОУ ВО «Дальневосточный федеральный университет»</institution></aff></aff-alternatives><aff-alternatives id="aff7"><aff><institution xml:lang="en">Primorsky Regional Oncological Dispensary</institution></aff><aff><institution xml:lang="ru">ГБУЗ «Приморский краевой онкологический диспансер»</institution></aff></aff-alternatives><aff-alternatives id="aff8"><aff><institution xml:lang="en">Salekhard Regional Clinical Hospital</institution></aff><aff><institution xml:lang="ru">ГБУЗ «Салехардская окружная клиническая больница»</institution></aff></aff-alternatives><aff-alternatives id="aff9"><aff><institution xml:lang="en">Regional Clinical Center of Oncology</institution></aff><aff><institution xml:lang="ru">КГБУЗ «Краевой клинический центр онкологии»</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2021-06-02" publication-format="electronic"><day>02</day><month>06</month><year>2021</year></pub-date><volume>11</volume><issue>1</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>11</fpage><lpage>20</lpage><history><date date-type="received" iso-8601-date="2021-06-01"><day>01</day><month>06</month><year>2021</year></date><date date-type="accepted" iso-8601-date="2021-06-01"><day>01</day><month>06</month><year>2021</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2021, ABV-press</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2021, АБВ-пресс</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="en">ABV-press</copyright-holder><copyright-holder xml:lang="ru">АБВ-пресс</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://onco-surgery.info/jour/about/editorialPolicies</ali:license_ref></license></permissions><self-uri xlink:href="https://onco-surgery.info/jour/article/view/491">https://onco-surgery.info/jour/article/view/491</self-uri><abstract xml:lang="en"><p><bold>Objective:</bold> to compare the efficacy and tolerability of second‑line chemotherapy with original bevacizumab (Avastin) and biosimilar bevacizumab produced by “Biocad” (Avegra) in patients with metastatic colon cancer.<bold>Materials and methods.</bold> This retrospective observational study included patients with metastatic colon cancer treated in 9 clinics in the Russian Federation. Inclusion criteria were as follows: metastatic or locally advanced colon cancer and second‑line therapy with bevacizumab (Avastin or Avegra). The primary outcome measure was overall survival (OS). Secondary outcome measures included progression‑free survival (PFS), disease control rate (DCR), and incidence of adverse events associated with antiangiogenic therapy.<bold>Results.</bold> We identified 209 patients with metastatic colon cancer who received second‑line therapy with biosimilar bevacizumab (n = 37; 17.7 %) or original bevacizumab (n = 90; 43 %) or no targeted therapy (n = 82; 39.3 %) between 2014 and 2018. Patients in these three groups were matched for their main prognostic characteristics. The DCR was 59.5 % in the group of biosimilar bevacizumab, 58.9 % in the group of original bevacizumab, and 50 % in the control group (without targeted therapy). PFS was 6 months in the chemotherapy group and 8 months in the groups of bevacizumab (hazard ratio (HR) 0.77; 95 % confidence interval (CI) 0.65–0.91; p = 0.002); the difference in PFS between patients receiving biosimilar bevacizumab and original bevacizumab was insignificant (HR 1.3; 95 % CI 0.81–2.1; р = 0.3). Median OS was 16 months in the chemotherapy group, 30 months in the biosimilar bevacizumab group, and 20 months in the original bevacizumab group (HR 0.89; 95 % CI 0.72–1.1; р = 0.3). We observed a tendency to longer OS in patients receiving biosimilar bevacizumab (HR 0.44; 95 % CI 0.17–1.1; р = 0.08). Bevacizumab‑ associated toxicity was limited to arterial hypertension and was registered in 4 patients with only one patient who developed grade III hypertension.<bold>Conclusions.</bold> There was no significant difference in PFS between patients receiving biosimilar and original drug, while OS was higher in the group of biosimilar bevacizumab. Both medicines demonstrated similar toxicity. Therapy with biosimilar bevacizumab ensured lower incidence of hypertension and proteinuria compared to the original drug. An additional prospective observational study assessing the efficacy and tolerability of biosimilar bevacizumab in colon cancer patients is needed.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Цель исследования</bold> – сравнение эффективности и переносимости комбинации химиотерапии и оригинального бевацизумаба (Авастин) и биоаналога бевацизумаба фирмы «Биокад» (Авегра) у больных метастатическим раком толстой кишки во 2‑й линии лечения.<bold>Материалы и методы.</bold> Проведен ретроспективный анализ базы данных пациентов с метастатическим раком толстой кишки в рамках наблюдательного исследования работы 9 клиник РФ. Критерии включения: больные метастатическим или местно‑распространенным раком толстой кишки; проведение терапии с включением бевацизумаба (Авастин или Авегра) во 2‑й линии лечения. Основной критерий эффективности – общая выживаемость (ОВ). Дополнительные критерии: выживаемость без прогрессирования (ВБП), частота контроля болезни, частота нежелательных явлений, связанных с действием антиангиогенной терапии.<bold>Результаты.</bold> В базе было идентифицировано 209 больных метастатическим раком толстой кишки, которым в 2014–2018 гг. проводилась 2‑я линия лечения: с включением биоаналога бевацизумаба – у 37 (17,7 %) пациентов, оригинального бевацизумаба – у 90 (43 %), без таргетной терапии – у 82 (39,3 %). Группы статистически значимо не различались по основным прогностическим признакам. Частота контроля болезни составила 59,5 % в группе биоаналога, 58,9 % в группе оригинального бевацизумаба и 50 % в группе без таргетной терапии. Медиана ВБП составила 6 мес в группе химиотерапии и 8 мес в группах с бевацизумабом (отношение рисков (ОР) 0,77; 95 % доверительный интервал (ДИ) 0,65–0,91; р = 0,002), различий между биоаналогом и оригинальным бевацизумабом не отмечено (ОР 1,3; 95 % ДИ 0,81–2,1; р = 0,3). Медиана ОВ составила 16 мес в группе химиотерапии, 30 мес в группе биоаналога и 20 мес в группе оригинального бевацизумаба (ОР 0,89; 95 % ДИ 0,72–1,1; р = 0,3). Отмечена тенденция к более высокой ОВ при применении биоаналога (ОР 0,44;95 % ДИ 0,17–1,1; р = 0,08). Токсичность, ассоциированная с применением бевацизумаба, была ограничена только артериальной гипертензией. Последняя зарегистрирована у 4 пациентов, из них только у 1 пациента она была III степени тяжести.<bold>Выводы.</bold> ВБП во 2‑й линии терапии не различалась между сравниваемыми препаратами антител, ОВ была выше в группе биоаналога. Препараты обладали сравнимой токсичностью. На фоне терапии биоаналогом наблюдалась меньшая частота развития артериальной гипертензии и протеинурии. Необходимо дополнительное проспективное наблюдательное исследование по оценке эффективности и переносимости биоаналога бевацизумаба при раке толстой кишки.</p></trans-abstract><kwd-group xml:lang="en"><kwd>colon cancer</kwd><kwd>antiangiogenic therapy</kwd><kwd>biosimilars</kwd><kwd>bevacizumab</kwd><kwd>Avastin</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>рак толстой кишки</kwd><kwd>антиангиогенная терапия</kwd><kwd>биоаналоги</kwd><kwd>бевацизумаб</kwd><kwd>Авастин</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">1. Федянин М.Ю., Гладков О.А., Гордеев С.С. и др. Практические рекомендации по лекарственному лечению рака ободочной кишки и ректосигмоидного соединения. Практические рекомендации RUSSCO № 3s2, 2020 (том 10). С. 22. 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