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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="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">MD-Onco</journal-id><journal-title-group><journal-title xml:lang="en">MD-Onco</journal-title><trans-title-group xml:lang="ru"><trans-title>MD-Onco</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2782-3202</issn><issn publication-format="electronic">2782-6171</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">205</article-id><article-id pub-id-type="doi">10.17650/2782-3202-2025-5-4-25-35</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>NEW APPROACHES AND SUCCESSES IN TREATMENT OF ONCOLOGICAL PATIENTS AT THE CURRENT STAGE</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>НОВЫЕ НАПРАВЛЕНИЯ И УСПЕХИ В ЛЕЧЕНИИ ОНКОЛОГИЧЕСКИХ БОЛЬНЫХ НА СОВРЕМЕННОМ ЭТАПЕ</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Results of mFOLFIRINOX neoadjuvant chemotherapy in patients with resectable pancreatic cancer</article-title><trans-title-group xml:lang="ru"><trans-title>Результаты применения неоадъювантной химиотерапии по схеме mFOLFIRINOX в лечении больных резектабельным раком поджелудочной железы</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3036-9779</contrib-id><name-alternatives><name xml:lang="en"><surname>Vervekin</surname><given-names>Ilya V.</given-names></name><name xml:lang="ru"><surname>Вервекин</surname><given-names>Илья Валерьевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>iivervekin@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8514-5377</contrib-id><name-alternatives><name xml:lang="en"><surname>Zakharenko</surname><given-names>A. A.</given-names></name><name xml:lang="ru"><surname>Захаренко</surname><given-names>А. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>iivervekin@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">I.P. Pavlov First Saint Petersburg State Medical University, Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">ФГБОУ ВО «Первый Санкт-Петербургский государственный медицинский университет им. акад. И.П. Павлова» Минздрава России</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2025-12-17" publication-format="electronic"><day>17</day><month>12</month><year>2025</year></pub-date><volume>5</volume><issue>4</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>25</fpage><lpage>35</lpage><history><date date-type="received" iso-8601-date="2025-10-04"><day>04</day><month>10</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, Vervekin I.V., Zakharenko A.A.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, Вервекин И.В., Захаренко А.А.</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">Vervekin I.V., Zakharenko A.A.</copyright-holder><copyright-holder xml:lang="ru">Вервекин И.В., Захаренко А.А.</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://mdonco.abvpress.ru/jour/article/view/205">https://mdonco.abvpress.ru/jour/article/view/205</self-uri><abstract xml:lang="en"><p><bold>Aim. </bold>To evaluate efficacy and safety of neoadjuvant chemotherapy (nCT) using the mFOLFIRINOX regimen in treatment of patients with resectable pancreatic cancer.</p> <p><bold>Material and methods.<italic> </italic></bold>From 2020 to the present, a phase II study has been ongoing at the Pavlov First Saint Petersburg State Medical University investigating the efficacy of nCT using the mFOLFIRINOX regimen followed by radical surgery in patients with resectable pancreatic cancer in comparison to radical surgery at the first stage. As of May 2025, 152 patients were included in the study (standard treatment group (<italic>n</italic> = 76), nCT group (<italic>n</italic> = 76)). Patients in the standard treatment group underwent radical surgery followed by mFOLFIRINOX adjuvant chemotherapy for 12 cycles; patients in the experimental treatment group underwent tumor verification at the first stage, after which 6 cycles of mFOLFIRINOX nCT and radical surgery followed by mFOLFIRINOX adjuvant chemotherapy were performed for 6 cycles. This article discusses immediate surgical outcomes, complications and mortality.</p> <p><bold>Results. </bold>A statistically significant superiority of the nCT group over the standard treatment group was observed per various parameters. The frequency of R0 resections in the per protocol population was lower in the standard treatment group: 70.2 % versus 86.2 % in the nCT group (odds ratio (OR) 0.81; 95 % confidence interval (CI) 0.67–0.97; p = 0.03). The frequency of portal/superior mesenteric vein resection was higher in the standard treatment group: 21 % versus 7.9 % in the nCT group (OR 2.66; 95 % CI 1.46–6.34; p = 0.02). The frequency of N+ lymph node status was higher in the standard treatment group and amounted to 58.1 % versus 32.8 % in the nCT group (OR 1.77; 95 % CI 1.19–2.73; p = 0.004). The frequency of clinically significant postoperative pancreatic fistula B + C was higher in the standard treatment group: 47.4 % versus 18.4 % in the nCT group (OR 0.64; 95 % CI 0.5–0.8; p = 0.001). Survival analysis revealed statistically significant superiority of the nCT group. Thus, 1-year recurrence-free survival and overall survival rates were higher in the nCT group compared to the control group: 76.3 and 82.9 % versus 35.5 and 63.2 %, respectively (p = 0.0001). Median overall survival and recurrence-free survival were also higher in the nCT group: 31.3 months in the nCT group versus 18.2 months in the standard treatment group (OR 2.1; 95 % CI 1.41–3.16; p = 0.001), and 18.3 months versus 9.4 months (OR 2.5; 95 %; CI 1.73–3.64; p = 0.001), respectively.</p> <p><bold>Conclusion. </bold>nCT is a promising and safe method that can improve immediate treatment outcomes in patients with resectable pancreatic cancer.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Цель исследования</bold> – оценка эффективности и безопасности применения неоадъювантной химиотерапии (НАХТ) по схеме mFOLFIRINOX в лечении больных резектабельным раком поджелудочной железы.</p> <p><bold>Материалы и методы. </bold>С 2020 г. по настоящее время в ПСПбГМУ им. акад. И.П. Павлова проводят проспективное исследование II фазы, в котором изучают эффективность НАХТ по схеме mFOLFIRINOX с последующей радикальной операцией у пациентов с резектабельным раком поджелудочной железы по сравнению с радикальной операцией на 1-м этапе. На момент мая 2025 г. в исследовании были рандомизированы 152 пациента (группа стандартного лечения (n = 76) и группа НАХТ (n = 76)). Пациентам группы стандартного лечения проводили радикальную операцию с последующей адъювантной полихимиотерапией по схеме mFOLFIRINOX в объеме 12 циклов; пациентам группы экспериментального лечения 1-м этапом выполняли верификацию опухоли, после которой проводили 6 циклов НАХТ по схеме mFOLFIRINOX, радикальное хирургическое лечение с последующей адъювантной полихимиотерапией по схеме mFOLFIRINOX в объеме 6 циклов.</p> <p><bold>Результаты. </bold>Выявлено статистически значимое превосходство группы НАХТ над группой стандартного лечения по различным показателям. Частота R0-резекций в per protocol популяции была ниже в группе стандартного лечения: 70,2 % против 86,2 % в группе НАХТ (отношение рисков (ОР) 0,81; 95 % доверительный интервал (ДИ) 0,67–0,97; <italic>p</italic> = 0,03). Частота резекции воротной/верхней брыжеечной вены была выше в группе стандартного лечения: 21 % против 7,9 % в группе НАХТ (ОР 2,66; 95 % ДИ 1,46–6,34; p = 0,02). Частота статуса N+ лимфатических узлов была выше в группе стандартного лечения: 58,1 % против 32,8 % в группе НАХТ (ОР 1,77; 95 % ДИ 1,19–2,73; p = 0,004). В группе стандартного лечения частота развития клинически значимой послеоперационной панкреатической фистулы В + С была выше: 47,4 % против 18,4 % в группе НАХТ (ОР 0,64; 95 % ДИ 0,5–0,8; p = 0,001). При анализе выживаемости обнаружено статистически значимое превосходство группы НАХТ. Так, показатели 1-летней безрецидивной и общей выживаемости были выше в группе НАХТ по сравнению с контрольной: 76,3 и 82,9 % против 35,5 и 63,2 % соответственно (p = 0,0001). Медиана общей и безрецидивной выживаемости также была выше в группе НАХТ: 31,3 мес в группе НАХТ и 18,2 мес в группе стандартного лечения (ОР 2,1; 95 % ДИ 1,41–3,16; p = 0,001) и 18,3 мес против 9,4 мес (ОР 2,5; 95 % ДИ 1,73–3,64; p = 0,001) соответственно.</p> <p><bold>Заключение. </bold>НАХТ – перспективный и безопасный метод, способный улучшить непосредственные результаты лечения пациентов с резектабельным раком поджелудочной железы.</p></trans-abstract><kwd-group xml:lang="en"><kwd>pancreatic cancer</kwd><kwd>neoadjuvant chemotherapy</kwd><kwd>resectability</kwd><kwd>R0-resection</kwd><kwd>surgical treatment</kwd><kwd>postoperative complication</kwd><kwd>pancreatic resection</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>рак поджелудочной железы</kwd><kwd>неоадъювантная химиотерапия</kwd><kwd>резектабельность</kwd><kwd>R0-резекция</kwd><kwd>хирургическое лечение</kwd><kwd>послеоперационное осложнение</kwd><kwd>резекция поджелудочной железы</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>National Cancer Institute. 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