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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">807</article-id><article-id pub-id-type="doi">10.17650/2949-5857-2025-15-2-41-51</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">Analysis of prognosis factors in patients with metastatic HER2‑positive gastric/cardioesophageal transition cancer treated in oncological clinics of Moscow</article-title><trans-title-group xml:lang="ru"><trans-title>Анализ факторов прогноза у пациентов с метастатическим HER2‑положительным раком желудка/кардиоэзофагеального перехода, получавших лечение в онкологических клиниках г. Москвы</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0004-6399-963X</contrib-id><name-alternatives><name xml:lang="en"><surname>Abdulaeva</surname><given-names>R. Sh.</given-names></name><name xml:lang="ru"><surname>Абдулаева</surname><given-names>Р. Ш.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p><bold>Rukiyat Shamil’evna Abdulaeva,</bold></p><p>23 Kashirskoe Shosse, Moscow 115522</p></bio><bio xml:lang="ru"><p><bold>Рукият Шамильевна Абдулаева,</bold></p><p>115522 Москва, Каширское шоссе, 23</p></bio><email>ruutlevi@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9885-3922</contrib-id><name-alternatives><name xml:lang="en"><surname>Obarevich</surname><given-names>E. S.</given-names></name><name xml:lang="ru"><surname>Обаревич</surname><given-names>Е. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>23 Kashirskoe Shosse, Moscow 115522</p></bio><bio xml:lang="ru"><p>115522 Москва, Каширское шоссе, 23</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0008-5996-6965</contrib-id><name-alternatives><name xml:lang="en"><surname>Gavrilova</surname><given-names>D. A.</given-names></name><name xml:lang="ru"><surname>Гаврилова</surname><given-names>Д. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>23 Kashirskoe Shosse, Moscow 115522</p></bio><bio xml:lang="ru"><p>115522 Москва, Каширское шоссе, 23</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1693-0523</contrib-id><name-alternatives><name xml:lang="en"><surname>Besova</surname><given-names>N. S.</given-names></name><name xml:lang="ru"><surname>Бесова</surname><given-names>Н. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>23 Kashirskoe Shosse, Moscow 115522</p></bio><bio xml:lang="ru"><p>115522 Москва, Каширское шоссе, 23</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9732-4033</contrib-id><name-alternatives><name xml:lang="en"><surname>Makiev</surname><given-names>G. G.</given-names></name><name xml:lang="ru"><surname>Макиев</surname><given-names>Г. Г.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>23 Kashirskoe Shosse, Moscow 115522</p></bio><bio xml:lang="ru"><p>115522 Москва, Каширское шоссе, 23</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4848-6938</contrib-id><name-alternatives><name xml:lang="en"><surname>Zhukova</surname><given-names>L. G.</given-names></name><name xml:lang="ru"><surname>Жукова</surname><given-names>Л. Г.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Build. 1, 1 Novogireevskaya St., Moscow 111123</p></bio><bio xml:lang="ru"><p>111123 Москва, Новогиреевская ул., 1, корп. 1</p></bio><xref ref-type="aff" rid="aff2"/></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>23 Kashirskoe Shosse, Moscow 115522</p></bio><bio xml:lang="ru"><p>115522 Москва, Каширское шоссе, 23</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8727-2513</contrib-id><name-alternatives><name xml:lang="en"><surname>Karasev</surname><given-names>I. A.</given-names></name><name xml:lang="ru"><surname>Карасев</surname><given-names>И. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>23 Kashirskoe Shosse, Moscow 115522</p></bio><bio xml:lang="ru"><p>115522 Москва, Каширское шоссе, 23</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0591-7921</contrib-id><name-alternatives><name xml:lang="en"><surname>Evdokimov</surname><given-names>V. I.</given-names></name><name xml:lang="ru"><surname>Евдокимов</surname><given-names>В. И.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>8 Sosenskiy Stan St., Kommunarka, Moscow 108814</p></bio><bio xml:lang="ru"><p>108814 Москва, п. Коммунарка, ул. Сосенский стан, 8</p></bio><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Danilova</surname><given-names>A. S.</given-names></name><name xml:lang="ru"><surname>Данилова</surname><given-names>А. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>27 Istra, Moscow Region 143515</p></bio><bio xml:lang="ru"><p>143515 Московская область, п. Истра, 27</p></bio><xref ref-type="aff" rid="aff4"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9864-3837</contrib-id><name-alternatives><name xml:lang="en"><surname>Pokataev</surname><given-names>I. A.</given-names></name><name xml:lang="ru"><surname>Покатаев</surname><given-names>И. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>18A Zagorodnoe Shosse, Moscow 117152</p></bio><bio xml:lang="ru"><p>117152 Москва, Загородное шоссе, 18А</p></bio><xref ref-type="aff" rid="aff5"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0008-5360-2191</contrib-id><name-alternatives><name xml:lang="en"><surname>Shangina</surname><given-names>I. A.</given-names></name><name xml:lang="ru"><surname>Шангина</surname><given-names>И. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>18A Zagorodnoe Shosse, Moscow 117152</p></bio><bio xml:lang="ru"><p>117152 Москва, Загородное шоссе, 18А</p></bio><xref ref-type="aff" rid="aff5"/></contrib><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>23 Kashirskoe Shosse, Moscow 115522;</p><p>8 Sosenskiy Stan St., Kommunarka, Moscow 108814</p></bio><bio xml:lang="ru"><p>115522 Москва, Каширское шоссе, 23</p><p>108814 Москва, п. Коммунарка, ул. Сосенский стан, 8</p></bio><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0007-2295-6045</contrib-id><name-alternatives><name xml:lang="en"><surname>Lokyan</surname><given-names>L. A.</given-names></name><name xml:lang="ru"><surname>Локян</surname><given-names>Л. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>23 Kashirskoe Shosse, Moscow 115522</p></bio><bio xml:lang="ru"><p>115522 Москва, Каширское шоссе, 23</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Lezina</surname><given-names>K. S.</given-names></name><name xml:lang="ru"><surname>Лезина</surname><given-names>К. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>23 Kashirskoe Shosse, Moscow 115522</p></bio><bio xml:lang="ru"><p>115522 Москва, Каширское шоссе, 23</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0002-2250-8772</contrib-id><name-alternatives><name xml:lang="en"><surname>Mustafazade</surname><given-names>E. A.</given-names></name><name xml:lang="ru"><surname>Мустафазаде</surname><given-names>Э. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>23 Kashirskoe Shosse, Moscow 115522</p></bio><bio xml:lang="ru"><p>115522 Москва, Каширское шоссе, 23</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0001-6360-8932</contrib-id><name-alternatives><name xml:lang="en"><surname>Shulumba</surname><given-names>L. R.</given-names></name><name xml:lang="ru"><surname>Шулумба</surname><given-names>Л. Р.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>23 Kashirskoe Shosse, Moscow 115522</p></bio><bio xml:lang="ru"><p>115522 Москва, Каширское шоссе, 23</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0004-9209-5285</contrib-id><name-alternatives><name xml:lang="en"><surname>Guzhavin</surname><given-names>D. P.</given-names></name><name xml:lang="ru"><surname>Гужавин</surname><given-names>Д. П.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>1 Ostrovityanova St., Moscow 117513</p></bio><bio xml:lang="ru"><p>117513 Москва, ул. Островитянова, 1</p></bio><xref ref-type="aff" rid="aff6"/></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><aff-alternatives id="aff2"><aff><institution xml:lang="en">A.S. Loginov Moscow Clinical Scientific Center, Moscow Healthcare Department</institution></aff><aff><institution xml:lang="ru">ГБУЗ «Московский клинический научно-практический центр им. А.С. Логинова Департамента здравоохранения г. Москвы»</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Moscow Multidisciplinary Clinical Center “Kommunarka”, Moscow Healthcare Department</institution></aff><aff><institution xml:lang="ru">ГБУЗ «Московский многопрофильный клинический центр «Коммунарка» Департамента здравоохранения г. Москвы»</institution></aff></aff-alternatives><aff-alternatives id="aff4"><aff><institution xml:lang="en">Moscow City Oncology Hospital No. 62, Moscow Healthcare Department</institution></aff><aff><institution xml:lang="ru">ГБУЗ «Московская городская онкологическая больница №62 Департамента здравоохранения г. Москвы»</institution></aff></aff-alternatives><aff-alternatives id="aff5"><aff><institution xml:lang="en">Branch “Oncology Center No. 1 of the City Clinical Hospital named after S.S. Yudin of the Moscow Healthcare Department”</institution></aff><aff><institution xml:lang="ru">филиал «Онкологический центр №1 Городской клинической больницы им. С.С. Юдина Департамента здравоохранения г. Москвы»</institution></aff></aff-alternatives><aff-alternatives id="aff6"><aff><institution xml:lang="en">N.N. Pirogov Russian National Research Medical University, Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">ФГАОУ ВО «Российский национальный исследовательский медицинский университет им. Н.И. Пирогова» Минздрава России</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2025-06-19" publication-format="electronic"><day>19</day><month>06</month><year>2025</year></pub-date><volume>15</volume><issue>2</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>41</fpage><lpage>51</lpage><history><date date-type="received" iso-8601-date="2025-06-19"><day>19</day><month>06</month><year>2025</year></date><date date-type="accepted" iso-8601-date="2025-06-19"><day>19</day><month>06</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, ABV-press</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, АБВ-пресс</copyright-statement><copyright-year>2025</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/807">https://onco-surgery.info/jour/article/view/807</self-uri><abstract xml:lang="en"><p><bold>Introduction</bold>. Cancer of the stomach and cardio-esophageal transition is one of the key causes of mortality from malignant neoplasms in the world. Despite advances in targeted therapy in the treatment of HER2-positive gastric adenocarcinoma, the prognosis for most patients remains poor. The high degree of heterogeneity of the disease, relapse rates and limited treatment efficacy highlight the need to examine factors influencing therapy outcomes and possibility of their accounting in order to perform a personalized treatment.</p><p><bold>Aim</bold>. To evaluate the factors influencing progression-free survival and overall survival in patients with metastatic HER2-positive gastric cancer and/or cardio-esophageal transition.</p><p><bold>Materials and methods</bold>. The study included data from patients with metastatic HER2- positive gastric cancer from 5 oncology hospitals who received 1st-line trastuzumab between 2019 and 2024. Statistical analysis was performed using univariate and multivariate analyses to assess the impact of different clinical characteristics on progression-free survival and overall survival.</p><p><bold>Results</bold>. The study included 117 patients with metastatic gastric cancer who received trastuzumab in the 1st line of therapy. In univariate analysis of patient characteristics, the presence of bone metastases, age over 65 years, presence of ascites, ECOG status 1–2, degree of G3 differentiation, female sex were prognostically significant for progression-free survival and overall survival. As a result of multivariate analysis, age 65 years and older (p = 0.016), female sex (p = 0.003), presence of poorly differentiated tumors (p = 0.021), the presence of metastases in supraclavicular lymph nodes (p = 0.043) were prognosis factors associated with decreased overall survival. And the presence of secondary foci in bones was an independent prognosis factor associated with decrease in PFS according to results of multifactorial analysis (p = 0.043).</p><p><bold>Conclusion</bold>. Despite the effectiveness of targeted therapies, factors such as age, sex, functional status and metastasis localization have a decisive impact on the disease prognosis. Analysis of larger sample of patients is needed to definitively confirm the findings.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Введение</bold>. Рак желудка и кардиоэзофагеального перехода является одной из ключевых причин смертности от злокачественных новообразований в мире. Несмотря на успехи таргетной терапии в лечении HER2-положительной аденокарциномы рака желудка, прогноз для большинства пациентов остается неблагоприятным. Высокая степень гетерогенности заболевания, частота рецидивов и ограниченная эффективность лечения подчеркивают необходимость изучения факторов, влияющих на исходы терапии и возможности их учета для персонализации лечения.</p><p><bold>Цель исследования</bold> – оценить факторы, влияющие на выживаемость без прогрессирования и общую выживаемость у пациентов с метастатическим HER2-положительным раком желудка и/или кардиоэзофагеального перехода.</p><p><bold>Материалы и методы</bold>. В исследование были включены данные пациентов с метастатическим HER2-положительным раком желудка из 5 больниц онкологического профиля, получивших трастузумаб в 1-й линии терапии в период с 2019 по 2024 г. Статистический анализ проводился с использованием однофакторного и многофакторного анализа для оценки влияния различных клинических характеристик на выживаемость без прогрессирования и общую выживаемость.</p><p><bold>Результаты</bold>. В исследование были включены 117 пациентов с метастатическим раком желудка, получивших трастузумаб в 1-й линии терапии. При однофакторном анализе характеристик пациентов прогностически значимыми в отношении выживаемости без прогрессирования и общей выживаемости явились наличие метастазов в костях, возраст старше 65 лет, наличие асцита, статус ECOG 1–2, степень дифференцировки G3, женский пол. В результате многофакторного анализа возраст 65 лет и старше (p = 0,016), женский пол (p = 0,003), наличие низкодифференцированных опухолей (p = 0,021), наличие метастазов в надключичных лимфатических узлах (p = 0,043) являлись факторами прогноза, ассоциированными со снижением общей выживаемости. А наличие вторичных очагов в костях явилось независимым фактором прогноза, ассоциированным со снижением выживаемости без прогрессирования по результатам многофакторного анализа (p = 0,043).</p><p><bold>Заключение</bold>. Несмотря на эффективность таргетной терапии, такие факторы, как возраст, пол, функциональный статус и локализация метастазов, оказывают решающее влияние на прогноз заболевания. Для окончательного подтверждения полученных данных необходим анализ на более крупной выборке пациентов.</p></trans-abstract><kwd-group xml:lang="en"><kwd>metastatic HER2-positive gastric cancer</kwd><kwd>cardio-esophageal transition</kwd><kwd>prognosis factor</kwd><kwd>progression-free survival</kwd><kwd>overall survival</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>метастатический HER2-положительный рак желудка</kwd><kwd>кардиоэзофагеальный переход</kwd><kwd>фактор прогноза</kwd><kwd>выживаемость без прогрессирования</kwd><kwd>общая выживаемость</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Bray F., Laversanne M., Sung H. et al. Global cancer statistics 2022: GLOBOCAN estimates of incidence and mortality worldwide for 36 cancers in 185 countries. CA Cancer J Clin 2024;74(3):229–63. DOI: 10.3322/caac.21834</mixed-citation></ref><ref id="B2"><label>2.</label><citation-alternatives><mixed-citation xml:lang="en">Belkin E.V., Tulin P.E., Abu-Khaydar O.B. et al. PET/CT with 68Ga-FAPI and 18F-FDG in the Detection of Metastases in Regional Lymph Nodes in Gastric Cancer. Journal of Oncology: diagnostic radiology and radiotherapy 2025;8(1):29–35. (In Russ.). DOI: 10.37174/2587-7593-2025-8-1-29-353.</mixed-citation><mixed-citation xml:lang="ru">Белкин Е.В., Тулин П.Е., Абу-Хайдар О.Б. и др. ЭТ/КТ с 68Ga-FAPI и 18F-FDG в оценке метастатического поражения регионарных лимфоузлов при раке желудка. Онкологический журнал: лучевая диагностика, лучевая терапия 2025;8(1):29–35. DOI: 10.37174/2587-7593-2025-8-1-29-35.</mixed-citation></citation-alternatives></ref><ref id="B3"><label>3.</label><citation-alternatives><mixed-citation xml:lang="en">Abu-Haidar O.B., Gladilina I.A., Kononets P.V., Tryakin A.A. 8th edition AJCC/UICC Staging of Cancers of the Esophagus and Esophagogastric Junction. Journal of Oncology: diagnostic radiology and radiotherapy 2024;7(2):76–85. (In Russ.). DOI: 10.37174/2587-7593-2024-7-2-76-85</mixed-citation><mixed-citation xml:lang="ru">Абу-Хайдар О.Б., Гладилина И.А., Кононец П.В., Трякин А.A. Стадирование рака пищевода и пищеводно-желудочного перехода по классификации TNM (UICC, 8-е изд.). Онкологический журнал: лучевая диагностика, лучевая терапия 2024;7(2):76–85. DOI: 10.37174/2587-7593-2024-7-2-76-85</mixed-citation></citation-alternatives></ref><ref id="B4"><label>4.</label><mixed-citation>Fitzmaurice C., Dicker D., Pain A. et al. The Global burden of cancer 2013. JAMA Oncol 2015;1(4):505–27. DOI: 10.1001/jamaoncol.2015.0735</mixed-citation></ref><ref id="B5"><label>5.</label><mixed-citation>Van der Geer P., Hunter T., Lindberg R.A., Receptor proteintyrosine kinases and their signal transduction pathways. Ann Rev Cell Biol 1994;10:251–337. DOI: 10.1146/annurev.cb.10.110194.001343</mixed-citation></ref><ref id="B6"><label>6.</label><mixed-citation>Skórzewska M., Gęca K., Polkowski W.P. A clinical viewpoint on the use of targeted therapy in advanced gastric cancer. Cancers (Basel) 2023;15(22):5490. DOI: 10.3390/cancers1522549</mixed-citation></ref><ref id="B7"><label>7.</label><mixed-citation>Lei Y.-Y., Huang J.-Y., Zhao Q.-R. et al. The clinicopathological parameters and prognostic significance of HER2 expression in gastric cancer patients: a meta-analysis of literature. World J Surg Oncol 2017;15(1):68. DOI: 10.1186/s12957-017-1132-5</mixed-citation></ref><ref id="B8"><label>8.</label><mixed-citation>Bang Y.-J., Van Cutsem E., Feyereislova A. et al. Trastuzumab in combination with chemotherapy versus chemotherapy alone for treatment of HER2-positive advanced gastric or gastro-oesophageal junction cancer (ToGA): a phase 3, open-label, randomised controlled trial. Lancet 2010;376(9742):687–97. DOI: 10.1016/S0140-6736(10)61121-X</mixed-citation></ref><ref id="B9"><label>9.</label><mixed-citation>Kim H.W., Kim J.-H., Lim B.J. et al. Sex Disparity in gastric cancer: female sex is a poor prognostic factor for advanced gastric cancer. Ann Surg Oncol 2016;23(13):4344–51. DOI: 10.1245/s10434-016-5448-0</mixed-citation></ref><ref id="B10"><label>10.</label><mixed-citation>Li Q., Li H., Jiang H. et al. Predictive factors of trastuzumab-based chemotherapy in HER2 positive advanced gastric cancer: a single-center prospective observational study. Clin Transl Oncol 2018;20(6):695–702. DOI: 10.1007/s12094-017-1772-5</mixed-citation></ref><ref id="B11"><label>11.</label><mixed-citation>Sun D.S., Jeon E.K., Won H.S. et al., Outcomes in elderly patients treated with a single-agent or combination regimen as first-line chemotherapy for recurrent or metastatic gastric cancer. Gastric Cancer 2015;18(3):644–52. DOI: 10.1007/s10120-014-0405-8</mixed-citation></ref><ref id="B12"><label>12.</label><mixed-citation>Cunningham D., Starling N., Rao S. et al. Capecitabine and oxaliplatin for advanced esophagogastric cancer. N Engl J Med 2008;358(1):36–46. DOI: 10.1056/NEJMoa073149</mixed-citation></ref><ref id="B13"><label>13.</label><mixed-citation>Lee S.S., Lee J.-L., Ryu M.-H. et al. Combination chemotherapy with capecitabine (X) and Cisplatin (P) as first line treatment in advanced gastric cancer: experience of 223 patients with prognostic factor analysis. Jpn J Clin Oncol 2007;37(1):30–7. DOI: 10.1093/jjco/hyl134</mixed-citation></ref><ref id="B14"><label>14.</label><mixed-citation>Kim T.-H., Cho H.D., Choi Y.W. et al. Trastuzumab-based palliative chemotherapy for HER2-positive gastric cancer: a singlecenter real-world data. BMC Cancer 2021;21(1):325. DOI: 10.1186/s12885-021-08058-2</mixed-citation></ref><ref id="B15"><label>15.</label><mixed-citation>Choi J.-H., Choi Y.W., Kang S.Y. et al., Combination versus singleagent as palliative chemotherapy for gastric cancer. BMC Cancer 2020;20(1):167. DOI: 10.1186/s12885-020-6666-1</mixed-citation></ref><ref id="B16"><label>16.</label><mixed-citation>Arias-Martinez A., Martínez de Castro E., Gallego J. et al. Is there a preferred platinum and fluoropyrimidine regimen for advanced HER2-negative esophagogastric adenocarcinoma? Insights from 1293 patients in AGAMENON-SEOM registry. Clin Transl Oncol 2024;26(7):1674–86. DOI: 10.1007/s12094-024-03388-6</mixed-citation></ref><ref id="B17"><label>17.</label><mixed-citation>Soularue É., Cohen R., Tournigand C. et al. Efficacy and safety of trastuzumab in combination with oxaliplatin and fluorouracil-based chemotherapy for patients with HER2-positive metastatic gastric and gastro-oesophageal junction adenocarcinoma patients: a retrospective study. Bull Cancer 2015;102(4):324–31. DOI: 10.1016/j.bulcan.2014.08.001</mixed-citation></ref></ref-list></back></article>
