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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">tumors</journal-id><journal-title-group><journal-title xml:lang="ru">Malignant tumours</journal-title><trans-title-group xml:lang="en"><trans-title>Malignant tumours</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2224-5057</issn><issn pub-type="epub">2587-6813</issn><publisher><publisher-name>Rosoncoweb</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.18027/2224-5057-2024-020</article-id><article-id custom-type="elpub" pub-id-type="custom">tumors-1425</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 ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL REPORTS</subject></subj-group></article-categories><title-group><article-title>Влияние поддерживающей терапии ингибиторами PARP после первоначального лечения на эффективность последующей терапии рака яичников: анализ методом псевдорандомизации</article-title><trans-title-group xml:lang="en"><trans-title>Impact of PARP inhibitor maintenance therapy after initial treatment on the efficacy of subsequent therapy in ovarian cancer: a propensity score matching analysis</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4443-9974</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Румянцев</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Rumyantsev</surname><given-names>А. А. </given-names></name></name-alternatives><bio xml:lang="ru"><p>Румянцев Алексей Александрович</p><p>115478 Москва, Каширское шоссе, 23</p></bio><bio xml:lang="en"><p>Rumyantsev Aleksei Aleksandrovich</p><p>23 Kashirskoe Shosse, Moscow 115478</p></bio><email xlink:type="simple">alexeymma@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7313-4013</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Тихомирова</surname><given-names>Т. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Tihomirova</surname><given-names>Т.  Е.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Тихомирова Татьяна Евгеньевна</p><p>115478 Москва, Каширское шоссе, 23</p></bio><bio xml:lang="en"><p>Tikhomirova Tatyana Evgenevna</p><p>23 Kashirskoe Shosse, Moscow 115478</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/0000-0002-0635-9343</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Царева</surname><given-names>А. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Tsareva</surname><given-names>А. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Царева Анастасия Сергеевна</p><p>115478 Москва, Каширское шоссе, 23</p></bio><bio xml:lang="en"><p>Tsareva Anastasiya Sergeevna</p><p>23 Kashirskoe Shosse, Moscow 115478</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/0000-0001-5912-1155</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гуторов</surname><given-names>С. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Gutorov</surname><given-names>S. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Гуторов Сергей Львович</p><p>115478 Москва, Каширское шоссе, 23</p></bio><bio xml:lang="en"><p>Gutorov Sergei Lvovich</p><p>23 Kashirskoe Shosse, Moscow 115478</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/0000-0002-2624-3030</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Луд</surname><given-names>А. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Lud</surname><given-names>А. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Луд Анна Николаевна</p><p>115478 Москва, Каширское шоссе, 23</p></bio><bio xml:lang="en"><p>Lud Anna Nikolaevna</p><p>23 Kashirskoe Shosse, Moscow 115478</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Чернова</surname><given-names>А. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Chernova</surname><given-names>А. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>629001 Салехард, ул. Мира, 39</p></bio><bio xml:lang="en"><p>39, Mira St., Salekhard 629001</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9807-2229</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Тюляндин</surname><given-names>С. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Tjulandin</surname><given-names>S. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Тюляндин Сергей Алексеевич</p><p>115478 Москва, Каширское шоссе, 23</p></bio><bio xml:lang="en"><p>Tjulandin Sergey Alekseevich</p><p>23 Kashirskoe Shosse, Moscow 115478</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБУ «Национальный медицинский исследовательский центр онкологии им. Н.Н. Блохина» Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>N. N. Blokhin National Medical Research Center of Oncology, Ministry of Health of Russia</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ГБУЗ «Салехардская окружная клиническая больница»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Salekhard District Clinical Hospital</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>23</day><month>01</month><year>2025</year></pub-date><volume>14</volume><issue>4</issue><fpage>50</fpage><lpage>57</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Румянцев А.А., Тихомирова Т.Е., Царева А.С., Гуторов С.Л., Луд А.Н., Чернова А.П., Тюляндин С.А., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Румянцев А.А., Тихомирова Т.Е., Царева А.С., Гуторов С.Л., Луд А.Н., Чернова А.П., Тюляндин С.А.</copyright-holder><copyright-holder xml:lang="en">Rumyantsev А.А., Tihomirova Т.Е., Tsareva А.S., Gutorov S.L., Lud А.N., Chernova А.P., Tjulandin S.A.</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.malignanttumors.org/jour/article/view/1425">https://www.malignanttumors.org/jour/article/view/1425</self-uri><abstract><sec><title>Введение</title><p>Введение: прогрессирование рака яичников (РЯ) на фоне проведения поддерживающей терапии ингибиторами PARP может ассоциироваться со снижением эффективности последующих линий противоопухолевой терапии, однако влияние прогрессирования РЯ на фоне поддерживающей терапии олапарибом после первоначального лечения заболевания изучено недостаточно.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы: в это ретроспективное исследование включались пациентки с III–IV стадиями BRCA/HRD + РЯ, проходившие первоначальное лечение в 2014–2022 гг., с подтвержденным прогрессированием опухолевого процесса после первичного лечения. Пациенты были разделены на две группы: получавшие поддерживающую терапию олапарибом после 1 линии химиотерапии (группа А — после олапариба) или не получавшие (группа Б — контрольная группа) предшествующую терапию ингибиторами PARP. Для обеспечения сбалансированности групп был использован метод «псевдорандомизации» (cardinality method, пакет MatchIT в пакете программ R) с соотношением пациенток 1:1, группы балансировались в соответствии с наличием резидуальной опухоли после первоначального лечения, длительностью бесплатинового интервала после первой линии терапии, выполнением вторичной циторедукции по поводу рецидива, назначением препаратов платины и бевацизумаба. Первичной конечной точкой исследования была выживаемость без прогрессирования (ВБП).</p></sec><sec><title>Результаты</title><p>Результаты: из исходной популяции пациенток, включенных в исследование (n = 259), после проведения процедуры «псевдорандомизации» сформировано две группы больных численностью по 38 человек, суммарный объем выборки исследования составил 76 пациенток. Медиана возраста составила 48 лет в группе А и 50 лет — в группе Б (p = 0,989), IV стадия опухолевого процесса была у 12 (32%) пациенток в обеих группах (p = 1,000), бесплатиновый интервал длительностью &gt; 12 мес. был у 25 (66%) пациенток в обеих группах. При медиане наблюдения 42,8 мес. (0,6–70,1 мес.) медиана ВБП в группе прогрессирования после олапариба и в контрольной группе составила 6,9 (95% ДИ 6,2–10,6 мес.) и 12,2 (95% ДИ 9,6–21,3 мес.), соответственно (ОР 2,89; 95% ДИ 1,63–5,12; p &lt; 0,001). Медиана общей выживаемости составила 23,2 мес. и 68,2 мес. в контрольной группе (ОР 4,15; 95% ДИ 1,62–10,6).</p></sec><sec><title>Заключение</title><p>Заключение: исследование демонстрирует значимое уменьшение последующей ВБП и обшей выживаемости пациенток после прогрессирования на фоне поддерживающей терапии ингибиторами PARP в первой линии лечения рака яичников и указывает на необходимость разработки отдельных подходов к лечению данной категории больных.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction: progression of advanced epithelial ovarian cancer (EOC) on olaparib may diminish the efficacy of subsequent chemotherapy in recurrent disease setting. However, the impact of progression of EOC during maintenance therapy with olaparib after frontline therapy has not been well studied.</p></sec><sec><title>Materials and methods</title><p>Materials and methods: this retrospective study enrolled patients of BRCA / HRD + FIGO stage III–IV EOC with confirmed progressive disease after frontline treatment treated since 2014 until 2022 who either received (arm A) or not (arm B) olaparib as maintenance therapy. To ensure the balance of the compared groups during the study propensity score matching analysis was conducted (cardinality method using MatchIT package in R) with 1:1 ratio of patients in trial arms. The groups were balanced according to the presence of residual tumor after initial treatment, the duration of platinum-free interval after the frontline therapy, secondary local therapy for recurrent disease, treatment with platinum drugs for relapse and subsequent bevacizumab. The primary endpoint of the study was progression-free survival (PFS).</p></sec><sec><title>Results</title><p>Results: the initial population consisted of 259 patients, after the matching procedure 76 patients were enrolled in the study. The median age of patients was 48 years in the arm A and 50 years in the arm B (p = 0.989), 12 (32 %) had FIGO stage IV in both arms (p = 1.000), 25 (66 %) patients in both arms had platinum-free interval ≥ 12 months. With a median follow-up of 42.8 mo. (0.6–70.1 months) median PFS was 6.9 (95 % CI 6.2–10.6 months) and 12.2 (95 % CI 9. 6–21.3 months) in arm A and B, respectively (hazard ratio [HR] 2.89; 95 % CI 1.63–5.12; p &lt; 0.001). Median overall survival was 23.2 months. and 68.2 mo., respectively (HR 4.15; 95 % CI 1.62–10.6).</p></sec><sec><title>Conclusion</title><p>Conclusion: efficacy of subsequent chemotherapy is apparently reduced following progression of BRCA / HRD + EOC on maintenance olaparib therapy in frontline setting. Further trials should assess optimal approaches for these patients.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>олапариб</kwd><kwd>ингибиторы PARP</kwd><kwd>резистентность</kwd><kwd>рак яичников</kwd><kwd>псевдорандомизация</kwd><kwd>BRCA</kwd></kwd-group><kwd-group xml:lang="en"><kwd>olaparib</kwd><kwd>PARP inhibitors</kwd><kwd>chemoresistance</kwd><kwd>ovarian cancer</kwd><kwd>propensity-score matching</kwd><kwd>BRCA</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Статья подготовлена без спонсорской поддержки.</funding-statement><funding-statement xml:lang="en">The article was prepared without sponsorship.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Banerjee S., Moore K.N., Colombo N., et al. 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