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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">1272</article-id><article-id pub-id-type="doi">10.17650/1994-4098-2024-20-3-16-21</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>MAMMOLOGY. ORIGINAL REPORTS</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>МАММОЛОГИЯ. ОРИГИНАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">Improving treatment outcomes for patients with HER2‑positive breast cancer using neoadjuvant double HER2 blockade</article-title><trans-title-group xml:lang="ru"><trans-title>Улучшение результатов лечения пациентов с HER2‑положительным раком молочной железы с помощью неоадъювантной двойной блокады HER2</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0077-9619</contrib-id><name-alternatives><name xml:lang="en"><surname>Semiglazov</surname><given-names>V. F.</given-names></name><name xml:lang="ru"><surname>Семиглазов</surname><given-names>В. Ф.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>68 Leningradskaya St., Pesochnyy Settlement, Saint Petersburg 197758</p></bio><bio xml:lang="ru"><p>197758 Санкт-Петербург, пос. Песочный, ул. Ленинградская, 68</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0009-6055-720X</contrib-id><name-alternatives><name xml:lang="en"><surname>Bekkeldieva</surname><given-names>N. B.</given-names></name><name xml:lang="ru"><surname>Беккелдиева</surname><given-names>Н. Б.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Nestan Bekkeldievna Bekkeldieva</p><p>68 Leningradskaya St., Pesochnyy Settlement, Saint Petersburg 197758</p></bio><bio xml:lang="ru"><p>Нестан Беккелдиевна Беккелдиева</p><p>197758 Санкт-Петербург, пос. Песочный, ул. Ленинградская, 68</p></bio><email>bekkeldiyeva.n@bk.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4898-9159</contrib-id><name-alternatives><name xml:lang="en"><surname>Krivorotko</surname><given-names>P. V.</given-names></name><name xml:lang="ru"><surname>Криворотько</surname><given-names>П. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>68 Leningradskaya St., Pesochnyy Settlement, Saint Petersburg 197758</p></bio><bio xml:lang="ru"><p>197758 Санкт-Петербург, пос. Песочный, ул. Ленинградская, 68</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6598-1669</contrib-id><name-alternatives><name xml:lang="en"><surname>Komyakhov</surname><given-names>A. V.</given-names></name><name xml:lang="ru"><surname>Комяхов</surname><given-names>А. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>68 Leningradskaya St., Pesochnyy Settlement, Saint Petersburg 197758</p></bio><bio xml:lang="ru"><p>197758 Санкт-Петербург, пос. Песочный, ул. Ленинградская, 68</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0871-9453</contrib-id><name-alternatives><name xml:lang="en"><surname>Paltuev</surname><given-names>R. M.</given-names></name><name xml:lang="ru"><surname>Палтуев</surname><given-names>Р. М.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>68 Leningradskaya St., Pesochnyy Settlement, Saint Petersburg 197758</p></bio><bio xml:lang="ru"><p>197758 Санкт-Петербург, пос. Песочный, ул. Ленинградская, 68</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8384-5786</contrib-id><name-alternatives><name xml:lang="en"><surname>Tseluyko</surname><given-names>A. I.</given-names></name><name xml:lang="ru"><surname>Целуйко</surname><given-names>А. И.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>68 Leningradskaya St., Pesochnyy Settlement, Saint Petersburg 197758</p></bio><bio xml:lang="ru"><p>197758 Санкт-Петербург, пос. Песочный, ул. Ленинградская, 68</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7654-4336</contrib-id><name-alternatives><name xml:lang="en"><surname>Gigolaeva</surname><given-names>L. P.</given-names></name><name xml:lang="ru"><surname>Гиголаева</surname><given-names>Л. П.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>68 Leningradskaya St., Pesochnyy Settlement, Saint Petersburg 197758</p></bio><bio xml:lang="ru"><p>197758 Санкт-Петербург, пос. Песочный, ул. Ленинградская, 68</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1471-9473</contrib-id><name-alternatives><name xml:lang="en"><surname>Tabagua</surname><given-names>T. T.</given-names></name><name xml:lang="ru"><surname>Табагуа</surname><given-names>Т. Т.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>68 Leningradskaya St., Pesochnyy Settlement, Saint Petersburg 197758</p></bio><bio xml:lang="ru"><p>197758 Санкт-Петербург, пос. Песочный, ул. Ленинградская, 68</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2029-4582</contrib-id><name-alternatives><name xml:lang="en"><surname>Zhiltsova</surname><given-names>E. K.</given-names></name><name xml:lang="ru"><surname>Жильцова</surname><given-names>Е. К.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>68 Leningradskaya St., Pesochnyy Settlement, Saint Petersburg 197758</p></bio><bio xml:lang="ru"><p>197758 Санкт-Петербург, пос. Песочный, ул. Ленинградская, 68</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8196-9766</contrib-id><name-alternatives><name xml:lang="en"><surname>Apollonova</surname><given-names>V. S.</given-names></name><name xml:lang="ru"><surname>Аполлонова</surname><given-names>В. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>68 Leningradskaya St., Pesochnyy Settlement, Saint Petersburg 197758</p></bio><bio xml:lang="ru"><p>197758 Санкт-Петербург, пос. Песочный, ул. Ленинградская, 68</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6183-9764</contrib-id><name-alternatives><name xml:lang="en"><surname>Dashyan</surname><given-names>G. A.</given-names></name><name xml:lang="ru"><surname>Дашян</surname><given-names>Г. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>68 Leningradskaya St., Pesochnyy Settlement, Saint Petersburg 197758</p></bio><bio xml:lang="ru"><p>197758 Санкт-Петербург, пос. Песочный, ул. Ленинградская, 68</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7797-088X</contrib-id><name-alternatives><name xml:lang="en"><surname>Kudaybergenova</surname><given-names>A. G.</given-names></name><name xml:lang="ru"><surname>Кудайбергенова</surname><given-names>А. Г.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>68 Leningradskaya St., Pesochnyy Settlement, Saint Petersburg 197758</p></bio><bio xml:lang="ru"><p>197758 Санкт-Петербург, пос. Песочный, ул. Ленинградская, 68</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4220-4987</contrib-id><name-alternatives><name xml:lang="en"><surname>Ivanov</surname><given-names>V. G.</given-names></name><name xml:lang="ru"><surname>Иванов</surname><given-names>В. Г.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>68 Leningradskaya St., Pesochnyy Settlement, Saint Petersburg 197758</p></bio><bio xml:lang="ru"><p>197758 Санкт-Петербург, пос. Песочный, ул. Ленинградская, 68</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1187-7989</contrib-id><name-alternatives><name xml:lang="en"><surname>Bozhok</surname><given-names>A. A.</given-names></name><name xml:lang="ru"><surname>Божок</surname><given-names>А. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>68 Leningradskaya St., Pesochnyy Settlement, Saint Petersburg 197758</p></bio><bio xml:lang="ru"><p>197758 Санкт-Петербург, пос. Песочный, ул. Ленинградская, 68</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1346-933X</contrib-id><name-alternatives><name xml:lang="en"><surname>Ulrikh</surname><given-names>D. G.</given-names></name><name xml:lang="ru"><surname>Ульрих</surname><given-names>Д.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>68 Leningradskaya St., Pesochnyy Settlement, Saint Petersburg 197758</p></bio><bio xml:lang="ru"><p>197758 Санкт-Петербург, пос. Песочный, ул. Ленинградская, 68</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0003-9921-9642</contrib-id><name-alternatives><name xml:lang="en"><surname>Gorina</surname><given-names>A. O.</given-names></name><name xml:lang="ru"><surname>Горина</surname><given-names>А. О.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>68 Leningradskaya St., Pesochnyy Settlement, Saint Petersburg 197758</p></bio><bio xml:lang="ru"><p>197758 Санкт-Петербург, пос. Песочный, ул. Ленинградская, 68</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4305-6691</contrib-id><name-alternatives><name xml:lang="en"><surname>Semiglazova</surname><given-names>T. Yu.</given-names></name><name xml:lang="ru"><surname>Семиглазова</surname><given-names>Т. Ю.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>68 Leningradskaya St., Pesochnyy Settlement, Saint Petersburg 197758</p></bio><bio xml:lang="ru"><p>197758 Санкт-Петербург, пос. Песочный, ул. Ленинградская, 68</p></bio><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">N.N. Petrov National Medical Research Oncology Center, Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">ФГБУ «Национальный медицинский исследовательский центр онкологии им. Н.Н. Петрова» Минздрава России</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2024-11-09" publication-format="electronic"><day>09</day><month>11</month><year>2024</year></pub-date><volume>20</volume><issue>3</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>16</fpage><lpage>21</lpage><history><date date-type="received" iso-8601-date="2024-11-08"><day>08</day><month>11</month><year>2024</year></date><date date-type="accepted" iso-8601-date="2024-11-08"><day>08</day><month>11</month><year>2024</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/1272">https://ojrs.abvpress.ru/ojrs/article/view/1272</self-uri><abstract xml:lang="en"><p><bold>Background.</bold> Dual anti-HER2-targeted therapy in breast cancer (BC) significantly increased the rate of pathological complete response (pCR) compared to single blockade when added to chemotherapy. However, limited data exist on the long-term impact on survival of the additional increase in pCR.</p><p><bold>Aim.</bold> To improve recommendations regarding HER2-targeted agents and chemotherapy in the neoadjuvant treatment of BC.</p><p><bold>Materials and methods.</bold> N.N. Petrov National Medical Research Oncology Center, Ministry of Health of Russia took participation in some clinical trials of neoadjuvant treatment of HER2-positive breast cancer, including NeoSphere and NeoALTTO. In multicenter, open-label, phase 2 randomised NeoSphere trial, patients with locally advanced, inflammatory, or early-stage HER2-positive BC were randomly assigned to receive four neoadjuvant cycles of trastuzumab (8 mg/kg loading dose, followed by 6 mg/kg every 3 weeks) plus docetaxel (75 mg/m<sup>2</sup> from every 3 weeks, increasing to 100 mg/m<sup>2</sup> from cycle 2 if tolerated) (group A), pertuzumab (420 mg every 3 weeks) and trastuzumab plus docetaxel (group B), pertuzumab and trastuzumab (group C), or pertuzumab and docetaxel (group D). After surgery, patients received three cycles of FEC. Рatients in group C received four cycles of docetaxel prior to FEC, and trastuzumab 6 mg/kg every 3 weeks to complete 1 years treatment. In NeoALTTO trial from 455 patients 154 patients received lapatinib, 149 – trastuzumab, 152 – combination of lapatinib and trastuzumab.</p><p><bold>Results.</bold> Between 2007, and 2009, 417 patients were randomly assigned to group A (107 patients), group B (n = 107), group C (n = 107), or group D (n = 96). At clinical cutoff, 87 patients had disease progression or died. 5-year progressionfree survival rates were 81 % (95 % confidence interval (CI) 71–87) for group A, 86 % (95 % CI 72–91) for group B, 73 % for group C, and 73 % for group D (95 % CI 0.34–1.40). Disease-free survival rates were consistent with progressionfree survival rates and were 81 % (95 % CI 72–88) for group A, 84 % (95 % CI 72–91) for group B, 80 % (95 % CI 70–86) for group C, and 75 % (95 % CI 64–83) for group D. In NeoALTTO trial patients who achieved pCR had longer progressionfree survival (85 % (95 % CI 76–91)) compared with patients who did not achieve pCR (76 % (95 % CI 71–81)).</p><p><bold>Conclusion</bold>. High levels of progression-free survival and disease-free survival at 5–10-years follow-up show large and overlapping CI, but support the primary endpoint (pCR) and suggest that neoadjuvant pertuzumab is beneficial when combined with trastuzumab and docetaxel. Additionally, they suggest that pCR could be an early indicator of long-term outcome in early-stage HER2-positive BC.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Введение.</bold> Двойная анти-HER2-таргетная терапия (блокада) при раке молочной железы (РМЖ) значительно увеличивает частоту патоморфологического полного ответа (pathological complete response, pCR) по сравнению с однократной блокадой при добавлении к химиотерапии. Однако существуют ограниченные данные о долгосрочном влиянии дополнительного повышения частоты pCR на выживаемость.</p><p><bold>Цель исследования</bold> – улучшить рекомендации в отношении HER2-таргетных препаратов и химиотерапии при неоадъювантном лечении РМЖ.</p><p><bold>Материалы и методы.</bold> ФГБУ «Национальный медицинский исследовательский центр онкологии им. Н.Н. Петрова»</p><p>Минздрава России принял участие в нескольких многоцентровых клинических исследованиях, включая NeoSphere и NeoALTTO. В исследовании NeoSphere пациенты с местно-распространенным, воспалительным или ранним HER2-положительным РМЖ были рандомизированы в 1 из 4 неоадъювантных групп лечения, в которых пациенты получали трастузумаб (нагрузочная доза 8 мг/кг, затем 6 мг/кг каждые 3 нед) + доцетаксел (75 мг/м<sup>2</sup> каждые 3 нед, повышение до 100 мг/м<sup>2</sup> со 2-го цикла при хорошей переносимости) (группа А), пертузумаб (420 мг каждые 3 нед) и трастузумаб + доцетаксел (группа B), пертузумаб + трастузумаб (группа C), пертузумаб и доцетаксел (группа D). После операции пациенты получали 3 цикла химиотерапии по схеме FEC. Пациенты в группе С получали 4 цикла доцетаксела до FEC и трастузумаб 6 мг/кг каждые 3 нед до 1 года лечения. В исследовании NeoALTTO из общего числа 455 пациентов 154 получили лапатиниб, 149 – трастузумаб, 152 – их комбинацию.</p><p><bold>Результаты.</bold> В период с 2007 по 2009 г. 417 пациентов были рандомизированы в группу А (n = 107), группу В (n = 107), группу С (n = 107) или группу D (n = 96). На момент 5-летнего наблюдения 87 пациентов имели прогрессирование заболевания или умерли. Пятилетняя выживаемость без прогрессирования составила 81 % (95 % доверительный интервал (ДИ) 71–87) в группе А, 86 % в группе В, 73 % в группе С и 73 % в группе D (95 % ДИ 0,34–1,40). Показатели безрецидивной выживаемости в основном соответствовали показателям выживаемости без прогрессирования и составили 81 % (95 % ДИ 72–88) в группе А, 84 % (95 % ДИ 72–91) в группе В, 80 % (95 % ДИ 70–86) в группе С и 75 % (95 % ДИ 64–83) в группе D. В исследовании NeoALTTO у пациентов, достигших pCR, отмечалась более длительная выживаемость без прогрессирования (85 % (95 % ДИ 76–91)) по сравнению с пациентами, не достигшими pCR (75 % (95 % ДИ 71–81)).</p><p><bold>Выводы.</bold> Высокие уровни выживаемости без прогрессирования и безрецидивной выживаемости при 5–10-летнем наблюдении демонстрируют высокие и перекрывающиеся ДИ, но подтверждают значения первичной конечной точки (pCR) и позволяют предположить, что неоадъювантный пертузумаб эффективен в сочетании с трастузумабом и доцетакселом. Кроме того, они свидетельствуют о том, что pCR может быть показателем долгосрочного исхода при ранней операбельной стадии HER2-положительного РМЖ.</p></trans-abstract><kwd-group xml:lang="en"><kwd>HER2-positive breast cancer</kwd><kwd>stage II–III</kwd><kwd>neoadjuvant double HER2 blockade</kwd><kwd>trastuzumab + pertuzumab</kwd><kwd>lapatinib + trastuzumab</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>HER2-положительный рак молочной железы</kwd><kwd>II–III стадии</kwd><kwd>неоадъювантная двойная блокада HER2</kwd><kwd>трастузумаб + пертузумаб</kwd><kwd>трастузумаб + лапатиниб</kwd></kwd-group><funding-group><funding-statement xml:lang="en">The study was performed without external funding</funding-statement><funding-statement xml:lang="ru">Исследование проведено без спонсорской поддержки</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Semiglazov V.F., Krivorotko P.V., Semiglazov V.V. et al. 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