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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">Head and Neck Tumors</journal-id><journal-title-group><journal-title xml:lang="en">Head and Neck Tumors</journal-title><trans-title-group xml:lang="ru"><trans-title>Опухоли головы и шеи</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2222-1468</issn><issn publication-format="electronic">2411-4634</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">1099</article-id><article-id pub-id-type="doi">10.17650/2222-1468-2025-15-3-25-34</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>DIAGNOSIS AND TREATMENT OF HEAD AND NECK TUMORS</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ДИАГНОСТИКА И ЛЕЧЕНИЕ ОПУХОЛЕЙ ГОЛОВЫ И ШЕИ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">Neoadjuvant chemotherapy for locally advanced oral mucosal cancer</article-title><trans-title-group xml:lang="ru"><trans-title>Неоадъювантная химиотерапия при местно-распространенном раке слизистой оболочки полости рта</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9132-3416</contrib-id><name-alternatives><name xml:lang="en"><surname>Kropotov</surname><given-names>M. A.</given-names></name><name xml:lang="ru"><surname>Кропотов</surname><given-names>М. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Mikhail Alekseevich Kropotov </p><p>4 Koroleva St., Obninsk 249036</p></bio><bio xml:lang="ru"><p>Михаил Алексеевич Кропотов </p><p>249036 Обнинск, ул. Королева, 4</p></bio><email>drkropotov@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0003-1437-5858</contrib-id><name-alternatives><name xml:lang="en"><surname>Zharkov</surname><given-names>O. A.</given-names></name><name xml:lang="ru"><surname>Жарков</surname><given-names>О. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>24 Kashirskoe Shosse, Moscow 115522</p></bio><bio xml:lang="ru"><p>115522 Москва, Каширское шоссе, 24</p></bio><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7356-8321</contrib-id><name-alternatives><name xml:lang="en"><surname>Yakovleva</surname><given-names>L. P.</given-names></name><name xml:lang="ru"><surname>Яковлева</surname><given-names>Л. П.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>86 Shosse Entuziastov,  Moscow 111123</p></bio><bio xml:lang="ru"><p>111123 Москва, шоссе Энтузиастов, 86</p></bio><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3275-2886</contrib-id><name-alternatives><name xml:lang="en"><surname>Vyzhigina</surname><given-names>B. B.</given-names></name><name xml:lang="ru"><surname>Выжигина</surname><given-names>Б. Б.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>24 Kashirskoe Shosse, Moscow 115522</p></bio><bio xml:lang="ru"><p>115522 Москва, Каширское шоссе, 24</p></bio><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5421-5985</contrib-id><name-alternatives><name xml:lang="en"><surname>Romano</surname><given-names>I. S.</given-names></name><name xml:lang="ru"><surname>Романов</surname><given-names>И. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>24 Kashirskoe Shosse, Moscow 115522</p></bio><bio xml:lang="ru"><p>115522 Москва, Каширское шоссе, 24</p></bio><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0006-4817-7114</contrib-id><name-alternatives><name xml:lang="en"><surname>Likhtenberg</surname><given-names>E. O.</given-names></name><name xml:lang="ru"><surname>Лихтенберг</surname><given-names>Е. О.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>24 Kashirskoe Shosse, Moscow 115522</p></bio><bio xml:lang="ru"><p>115522 Москва, Каширское шоссе, 24</p></bio><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">A.F. Tsyb Medical Radiological Research Center – branch of the National Medical Research Radiological Centre, Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">Медицинский радиологический научный центр им. А. Ф. Цыба – филиал ФГБУ «Национальный медицинский исследовательский центр радиологии» Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff2"><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 Росси</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">A.S. Loginov Moscow Clinical Scientific Center of the Moscow Healthcare Department</institution></aff><aff><institution xml:lang="ru">ГБУЗ г. Москвы «Московский клинический научно-практический центр им. А. С. Логинова Департамента здравоохранения  г. Москвы»</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2025-11-03" publication-format="electronic"><day>03</day><month>11</month><year>2025</year></pub-date><volume>15</volume><issue>3</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>25</fpage><lpage>34</lpage><history><date date-type="received" iso-8601-date="2025-10-30"><day>30</day><month>10</month><year>2025</year></date><date date-type="accepted" iso-8601-date="2025-10-30"><day>30</day><month>10</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, Kropotov M.A., Zharkov O.A., Yakovleva L.P., Vyzhigina B.B., Romano I.S., Likhtenberg E.O.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, Кропотов М.А., Жарков О.А., Яковлева Л.П., Выжигина Б.Б., Романов И.С., Лихтенберг Е.О.</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">Kropotov M.A., Zharkov O.A., Yakovleva L.P., Vyzhigina B.B., Romano I.S., Likhtenberg E.O.</copyright-holder><copyright-holder xml:lang="ru">Кропотов М.А., Жарков О.А., Яковлева Л.П., Выжигина Б.Б., Романов И.С., Лихтенберг Е.О.</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://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://ogsh.abvpress.ru/jour/article/view/1099">https://ogsh.abvpress.ru/jour/article/view/1099</self-uri><abstract xml:lang="en"><p><bold>Introduction.</bold> Oral mucosal cancer is one of the most complex tumors of the head and neck. most patients seek help with a locally advanced process where the tumor affects surrounding organs and tissues. Surgical treatment in such cases is accompanied by significant functional and aesthetic disorders, and 5-year disease-free survival does not exceed 50 %. In this regard, additional treatments for oral mucosal cancer, such as neoadjuvant chemotherapy, which can improve survival rates, are being actively investigated.</p><p><bold>Aim. </bold>To evaluate the efficacy of neoadjuvant chemotherapy and its impact on survival in patients with locally advanced oral mucosal cancer.</p><p><bold>Materials and methods.</bold> The study included 188 patients with resectable locally advanced stage III–Iv oral mucosal cancer (T2 – T4N0–2c) who were treated at the N. N. Blokhin National Oncology Research medical Center from 2013 to 2023. patients were divided into 2 groups. group 1 (<italic>n</italic> = 38) included patients who underwent neoadjuvant chemotherapy followed by surgery, group 2 (<italic>n</italic> = 150) included patients who underwent surgical treatment with adjuvant radiation / chemoradiation therapy. In 55.3 % of cases, the DCf regimen (docetaxel, cisplatin, 5-fluorouracil) was used, in 18.4 % – Cp (carboplatin, paclitaxel), in 26.3 % – pf (cisplatin, 5-fluorouracil). Clinical and morphological responses were assessed by solid tumor response criteria (Response evaluation criteria in solid tumors, RECIST 1.1). Statistical analysis was performed using IBm SpSS Statistics 27 software.</p><p><bold>Results.</bold> In 44.7 % of patients with locally advanced oral mucosal cancer, neoadjuvant chemotherapy provides a clinical response to treatment, in 25 % of patients –<bold> </bold>with a pronounced morphological tumor response (grade III–Iv). It was found that in the neoadjuvant chemotherapy group, the incidence of disease progression is significantly lower than in the surgical treatment group (34.2 % <italic>versus </italic>53.3 %), overall survival rates are better (48.7 % <italic>versus</italic> 40.4 %). In patients with a pronounced morphological response after neoadjuvant chemotherapy, the recurrence rate was lower than in patients with a worse response: in 12.5 and 29.2 % of cases, respectively. Nevertheless, there were no significant differences in survival rates between the neoadjuvant and surgical treatment groups<italic> (p</italic> = 0.063).</p><p><bold>Conclusion.</bold> Neoadjuvant chemotherapy contributes to improved treatment outcomes for locally advanced oral mucosal cancer. An increase in the number of patients with a pronounced morphological response can lead to a statistically significant increase in survival rates.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Введение.</bold> Рак слизистой оболочки полости рта представляет собой одну из наиболее сложных опухолей головы и шеи. большинство пациентов обращаются за помощью с местно-распространенным процессом, когда опухоль поражает окружающие органы и ткани. хирургическое лечение в таких случаях сопровождается значительными функциональными и эстетическими нарушениями, а 5-летняя безрецидивная выживаемость не превышает 50 %. В связи с этим активно исследуются дополнительные методы лечения рака слизистой оболочки полости рта, такие как неоадъювантная химиотерапия, которая может улучшить показатели выживаемости.</p><p><bold>Цель исследования </bold>– оценить эффективность неоадъювантной химиотерапии и ее влияние на выживаемость у пациентов с местно-распространенным раком слизистой оболочки полости рта.</p><p><bold>Материалы и методы.</bold> В исследование включены 188 пациентов с резектабельным местно-распространенным раком слизистой оболочки полости рта III–Iv стадии (T2–T4N0–2c), с 2013 по 2023 г. получавших лечение в Национальном исследовательском медицинском центре онкологии им. Н. Н. блохина. больные разделены на 2 группы. В группу 1 (<italic>n</italic> = 38) вошли пациенты, которым проведена неоадъювантная химиотерапия с последующим хирургическим вмешательством, в группу 2 (<italic>n</italic> = 150) – пациенты, которым выполнено хирургическое лечение с адъювантной лучевой / химиолучевой терапией. В 55,3 % случаев применяли режим DCf (доцетаксел, цисплатин, 5-фторурацил), в 18,4 % – Cp (карбоплатин, паклитаксел), в 26,3 % – pf (цисплатин, 5-фторурацил). Клинический и морфологический ответы оценивали по критериям ответа солидных опухолей (Response evaluation criteria in solid tumors, RECIST 1.1). статистический анализ выполнен с использованием программного обеспечения IBm SpSS Statistics 27.</p><p><bold>Результаты.</bold> у 44,7 % пациентов с местно-распространенным раком слизистой оболочки полости рта неоадъювантная химиотерапия позволяет получить клинический ответ на лечение, у 25 % пациентов <bold>– </bold>с достижением выраженного морфологического ответа опухоли (III–Iv степень). установлено, что в группе неоадъювантной химиотерпии частота прогрессирования заболевания значительно ниже, чем в группе хирургического лечения (34,2 % против 53,3 %), показатели общей выживаемости лучше (48,7 % против 40,4 %). у пациентов с выраженным морфологическим ответом после неоадъювантной химиотерапии частота развития рецидива была ниже, чем у пациентов, у которых ответ был хуже: в 12,5 и 29,2 % случаев соответственно. Тем не менее значимых различий в выживаемости в группах неоадъювантного и хирургического лечения не выявлено (<italic>р</italic> = 0,063).</p><p><bold>Заключение.</bold> Неоадъювантная химиотерапия способствует улучшению результатов лечения местно-распространенного рака слизистой оболочки полости рта. увеличение числа пациентов с выраженным морфологическим ответом может привести к статистически значимому повышению показателей выживаемости.</p></trans-abstract><kwd-group xml:lang="en"><kwd>neoadjuvant chemotherapy</kwd><kwd>oral mucosa</kwd><kwd>squamous cell carcinoma</kwd><kwd>complex cancer treatment</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>неоадъювантная химиотерапия</kwd><kwd>слизистая оболочка полости рта</kwd><kwd>плоскоклеточный рак</kwd><kwd>комплексное лечение рака</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.	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