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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">Cancer Urology</journal-id><journal-title-group><journal-title xml:lang="en">Cancer Urology</journal-title><trans-title-group xml:lang="ru"><trans-title>Онкоурология</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1726-9776</issn><issn publication-format="electronic">1996-1812</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">2068</article-id><article-id pub-id-type="doi">10.17650/1726-9776-2026-22-1-52-59</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>DIAGNOSIS AND TREATMENT OF URINARY SYSTEM TUMORS. URINARY BLADDER CANCER</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ДИАГНОСТИКА И ЛЕЧЕНИЕ ОПУХОЛЕЙ МОЧЕПОЛОВОЙ СИСТЕМЫ. Рак мочевого пузыря</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">Immunotherapy for urothelial carcinoma in an expanded patient population: bridging the gap between clinical trials and real-world practice</article-title><trans-title-group xml:lang="ru"><trans-title>Возможности иммунотерапии уротелиального рака в расширенной популяции пациентов: от клинических исследований к практическому применению</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0001-4292-0521</contrib-id><name-alternatives><name xml:lang="en"><surname>Tsirulnikova</surname><given-names>Olga S.</given-names></name><name xml:lang="ru"><surname>Цирульникова</surname><given-names>Ольга Сергеевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>osts25@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0003-5197-5924</contrib-id><name-alternatives><name xml:lang="en"><surname>Mostovoy</surname><given-names>M. Yu.</given-names></name><name xml:lang="ru"><surname>Мостовой</surname><given-names>М. Ю.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>osts25@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0009-8098-935X</contrib-id><name-alternatives><name xml:lang="en"><surname>Grigoryan</surname><given-names>M. M.</given-names></name><name xml:lang="ru"><surname>Григорян</surname><given-names>М. М.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>osts25@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Clinical Oncological Dispensary No. 1, Ministry of Health of the Krasnodar Region</institution></aff><aff><institution xml:lang="ru">ГБУЗ «Клинический онкологический диспансер № 1» Минздрава Краснодарского края</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2026-07-10" publication-format="electronic"><day>10</day><month>07</month><year>2026</year></pub-date><volume>22</volume><issue>1</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>52</fpage><lpage>59</lpage><history><date date-type="received" iso-8601-date="2026-07-09"><day>09</day><month>07</month><year>2026</year></date><date date-type="accepted" iso-8601-date="2026-07-09"><day>09</day><month>07</month><year>2026</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2026, ABV-Press</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2026, АБВ-пресс</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="en">ABV-Press</copyright-holder><copyright-holder xml:lang="ru">АБВ-пресс</copyright-holder><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://oncourology.abvpress.ru/oncur/about/editorialPolicies</ali:license_ref></license></permissions><self-uri xlink:href="https://oncourology.abvpress.ru/oncur/article/view/2068">https://oncourology.abvpress.ru/oncur/article/view/2068</self-uri><abstract xml:lang="en"><p>This article reviews the use of immunotherapy for the treatment of advanced urothelial carcinoma in an expanded patient population reflecting real-world clinical practice. It also describes two clinical cases of atezolizumab in second line treatment. Based on the analysis of the global Phase IIIb SAUL study, the multicenter Russian AURORA-RU study, and the own data, it was demonstrated that the PD-L1 (programmed death-ligand 1) inhibitor atezolizumab provides durable responses, long-term survival, and good tolerability even in “challenging” patient categories: elderly patients, comorbid patients, and patients with impaired renal function. The first clinical observation demonstrates the efficacy of atezolizumab in a 59-year-old patient with severe concomitant pathology and massive disease generalization following progression on platinum-based intra-arterial chemotherapy. A pseudoprogression is described: by applying iRECIST criteria and considering clinical stability, therapy was continued, leading to disease control for 21 months. The second clinical case illustrates the experience of treating a 72-year-old patient with chronic kidney disease and progression on platinum-based regimen. Treatment with atezolizumab resulted in achieving a significant partial response (44 % regression of the target lesion) and stabilization of bone metastases while maintaining a high quality of life throughout 27 months of treatment. In real-world clinical practice, atezolizumab is a preferred strategy for second line therapy, enabling durable responses and good tolerability even in patients with comorbidities.</p></abstract><trans-abstract xml:lang="ru"><p>В статье представлены обзор данных исследований по использованию иммунотерапии для лечения пациентов с распространенным уротелиальным раком в расширенной популяции пациентов, приближенной к реальной клинической практике, а также описание 2 клинических случаев применения атезолизумаба во 2-й линии системного лечения. На основании анализа глобального исследования IIIb фазы SAUL, многоцентрового российского исследования AURORA-RU и собственных данных показано, что ингибитор PD-L1 (programmed death-ligand 1, лиганд программируемой клеточной смерти 1) атезолизумаб обеспечивает длительные ответы, долгосрочную выживаемость и хорошую переносимость даже у «сложных» категорий больных: пациентов пожилого возраста, коморбидных пациентов, пациентов с нарушением функции почек. Первое клиническое наблюдение демонстрирует эффективность атезолизумаба у пациента 59 лет с серьезной сопутствующей патологией и массивной генерализацией процесса после прогрессирования на фоне платиносодержащей внутриартериальной химиотерапии. Описана ситуация псевдопрогрессирования: благодаря применению критериев iRECIST и учету клинической стабильности терапия была продолжена, что позволило достичь контроля над заболеванием в течение 21 мес. Второй клинический случай иллюстрирует опыт лечения пациента 72 лет с хронической болезнью почек и прогрессированием на фоне препаратов платины. Использование атезолизумаба позволило достичь выраженного частичного ответа (регрессия таргетного очага на 44 %) и стабилизации костных метастазов при сохранении высокого качества жизни на протяжении 27 мес наблюдения. В реальной клинической практике атезолизумаб является одной из стратегий 2-й линии терапии уротелиального рака, позволяя достигать длительных ответов при хорошей переносимости даже у соматически отягощенных пациентов.</p></trans-abstract><kwd-group xml:lang="en"><kwd>urothelial carcinoma</kwd><kwd>immunotherapy</kwd><kwd>PD-L1 inhibitors</kwd><kwd>atezolizumab</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>уротелиальный рак</kwd><kwd>иммунотерапия</kwd><kwd>ингибитор PD-L1</kwd><kwd>атезолизумаб</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Рак мочевого пузыря. Клинические рекомендации, 2023. Доступно по: https://cr.minzdrav.gov.ru/view-cr/11_3 (дата обращения 05.05.2026). Bladder cancer. Clinical guidelines, 2023. Available at: https://cr.minzdrav.gov.ru/view-cr/11_3 (date of access 05.05.2026). 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