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<article article-type="research-article" dtd-version="1.3" 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" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">clinicaloncology</journal-id><journal-title-group><journal-title xml:lang="ru">Клинический случай в онкологии</journal-title><trans-title-group xml:lang="en"><trans-title>Clinical Case in Oncology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">3034-1477</issn><issn pub-type="epub">3034-4018</issn><publisher><publisher-name>ОНКОПРАКТИК</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.62546/3034-1477-2025-3-1-7-15</article-id><article-id custom-type="elpub" pub-id-type="custom">clinicaloncology-98</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL ARTICLE</subject></subj-group></article-categories><title-group><article-title>Иммунотаргетная терапия MSS/pMMR-распространенного рака эндометрия сквозь призму реальной клинической практики. Обзор литературы и представление собственных данных</article-title><trans-title-group xml:lang="en"><trans-title>Immunotargeting therapy of MSS/pMMR — advanced endometrial cancer. Literature review and presentation of clinical practice</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0008-7586-0378</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Тесленко</surname><given-names>К. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Teslenko</surname><given-names>K. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Тесленко Ксения Николаевна</p><p>198255, Санкт-Петербург, пр. Ветеранов, д. 56</p></bio><bio xml:lang="en"><p>Ksenia  N. Teslenko </p><p>56 Veteranov Ave., St. Petersburg, 193318</p></bio><email xlink:type="simple">teslenkoksenia@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0002-8108-579X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сарматова</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Sarmatova</surname><given-names>A. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>198255, Санкт-Петербург, пр. Ветеранов, д. 56</p></bio><bio xml:lang="en"><p>Alexandra S. Sarmatova</p><p>56 Veteranov Ave., St. Petersburg, 193318</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4447-9458</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Орлова</surname><given-names>Р. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Orlova</surname><given-names>R. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>198255, Санкт-Петербург, пр. Ветеранов, д. 56,</p><p>199106, Санкт-Петербург, 21-я линия В.О., д. 8а</p></bio><bio xml:lang="en"><p>Rashida V. Orlova</p><p>56 Veteranov Ave., St. Petersburg, 193318,</p><p>7/9 Universitetskaya Emb., St. Petersburg, 199034</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>СПб ГБУЗ «Городской клинический онкологический диспансер»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>St. Petersburg City Clinical Oncology Dispensary</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>СПб ГБУЗ «Городской клинический онкологический диспансер»;&#13;
ФГБОУ ВО «Санкт-Петербургский государственный университет»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>St. Petersburg City Clinical Oncology Dispensary;&#13;
St. Petersburg State University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>13</day><month>07</month><year>2025</year></pub-date><volume>3</volume><issue>1</issue><fpage>7</fpage><lpage>15</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Тесленко К.Н., Сарматова А.С., Орлова Р.В., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Тесленко К.Н., Сарматова А.С., Орлова Р.В.</copyright-holder><copyright-holder xml:lang="en">Teslenko K.N., Sarmatova A.S., Orlova R.V.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.oncocase.ru/jour/article/view/98">https://www.oncocase.ru/jour/article/view/98</self-uri><abstract><p>Лекарственная терапия распространенного рака эндометрия (РЭ) долгие годы оставалась сложной задачей для практической онкологии. Несмотря на эффективность в 1-й линии стандартной платиновой химиотерапии, у большинства пациенток развивалась резистентность к проводимому лечению и дальнейшее прогрессирование заболевания. Стандарта терапии 2-й и последующих линий не существовало, так как имеющиеся химиопрепараты демонстрировали неудовлетворительные результаты в плане эффективности. Ситуация изменилась после открытия роли микросаттелитной нестабильности (MSI)/нарушений в системе репарации неспаренный оснований ДНК (dMMR) как предиктивного маркера эффективности иммунотерапии, которая встречается в 25% случаев РЭ. С 2020 г. в практических рекомендациях «Рак тела матки и саркомы матки» RUSSCO прописана необходимость определения MSI или dMMR при прогрессировании рака тела матки (РТМ), если это не было сделано ранее. Для этого применяют ИГХ метод (определение дефицита системы репарации MMR), при невозможности — ПЦР (определение наличия микросателлитной нестабильности MSI). В зависимости от статуса опухоли рекомендовано назначение иммунной (монотерапия пембролизумабом при dMMR) или иммунотаргетной (комбинация ленватиниба и пембролизумаба при pMMR) терапии во 2-й линии. С 2023 года данные режимы вынесены в режим предпочтения, а химиотерапия — в прочие режимы. В данной статье мы приводим существующие литературные данные по эффективности иммунотаргетного режима, практический опыт СПб ГБУЗ «Городской клинический онкологический диспансер» в использовании комбинации ленватиниб + пембролизумаб, а также иллюстрируем статистические данные реальным клиническим примером, отображающим несомненную эффективность данной тактики лечения.</p></abstract><trans-abstract xml:lang="en"><p>Drug therapy for advanced endometrial cancer (EC) has remained a challenging task for practical oncology for many years. Despite the effectiveness of standard platinum chemotherapy, most patients develop resistance to the treatment and further disease progression. Chemotherapy drugs used in the 2nd line of therapy show unsatisfactory results in terms of effectiveness. The situation has radically changed after the discovery of the role of microsatellite instability as a predictive marker of the effectiveness of immunotherapy. EC is the leading nosology in terms of the frequency of deficient mismatch repair system (dMMR) and demonstrates a high incidence of tumors with the phenomenon of high microsatellite instability (MSI-H). For such patients, the standard of treatment has become the use of immunotherapy, in monotherapy and in combination with platinum drugs. However, 70% of patients with EC show no signs of microsatellite instability in tumor tissue (MSS/pMMR), and for many years the introduction of immunotherapy into this subgroup has been associated with very low results, not exceeding the effectiveness of standard chemotherapy regimens. Only the use of a combined approach, a combination of immunotherapy and targeted therapy demonstrated an improvement in long-term treatment outcomes, disease-free survival (DFS) and overall survival (OS) in the MSS/pMMR group of endometrial cancer. In this article, we present the literature review on the effectiveness of this regimen, demonstrate the practical experience of St. Petersburg GBUZ «City Clinical Oncology Dispensary» in using a combined regimen, and also illustrate statistical data with a real clinical case effectiveness of this treatment tactic.</p><p> </p></trans-abstract><kwd-group xml:lang="ru"><kwd>рак эндометрия</kwd><kwd>микросателлитная нестабильность</kwd><kwd>иммунотаргетная терапия</kwd><kwd>пембролизумаб</kwd><kwd>ленватиниб</kwd></kwd-group><kwd-group xml:lang="en"><kwd>endometrial cancer</kwd><kwd>microsatellite instability</kwd><kwd>immunotargeting therapy</kwd><kwd>pembrolizumab</kwd><kwd>lenvatinib</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Каприн А.Д., Иванова М.С., Петров В.В. Злокачественные новообразования в России в 2023 году (заболеваемость и смертность) / под ред. А. Д. 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