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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">1985</article-id><article-id pub-id-type="doi">10.17650/1726-9776-2026-22-2-15-25</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>DIAGNOSIS AND TREATMENT OF URINARY SYSTEM TUMORS. PROSTATE CANCER</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ДИАГНОСТИКА И ЛЕЧЕНИЕ ОПУХОЛЕЙ МОЧЕПОЛОВОЙ СИСТЕМЫ. Рак предстательной железы</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">Preliminary results of active surveillance in localized prostate cancer GG1</article-title><trans-title-group xml:lang="ru"><trans-title>Предварительные результаты активного наблюдения при локализованном раке предстательной железы GG1</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0006-6620-2088</contrib-id><name-alternatives><name xml:lang="en"><surname>Pozharytski</surname><given-names>Aliaksandr M.</given-names></name><name xml:lang="ru"><surname>Пожарицкий</surname><given-names>Александр Михайлович</given-names></name></name-alternatives><address><country country="BY">Belarus</country></address><email>pozarickii.a.m@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Poddubny</surname><given-names>Yu. A.</given-names></name><name xml:lang="ru"><surname>Поддубный</surname><given-names>Ю. А.</given-names></name></name-alternatives><address><country country="BY">Belarus</country></address><email>pozarickii.a.m@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Parmon</surname><given-names>M. L.</given-names></name><name xml:lang="ru"><surname>Пармон</surname><given-names>М. Л.</given-names></name></name-alternatives><address><country country="BY">Belarus</country></address><email>pozarickii.a.m@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0006-3712-8405</contrib-id><name-alternatives><name xml:lang="en"><surname>Suslov</surname><given-names>L. N.</given-names></name><name xml:lang="ru"><surname>Суслов</surname><given-names>Л. Н.</given-names></name></name-alternatives><address><country country="BY">Belarus</country></address><email>pozarickii.a.m@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Ryabcheuski</surname><given-names>A. N.</given-names></name><name xml:lang="ru"><surname>Рябчевский</surname><given-names>А. Н.</given-names></name></name-alternatives><address><country country="BY">Belarus</country></address><email>pozarickii.a.m@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1591-6313</contrib-id><name-alternatives><name xml:lang="en"><surname>Polyakov</surname><given-names>S. L.</given-names></name><name xml:lang="ru"><surname>Поляков</surname><given-names>С. Л.</given-names></name></name-alternatives><address><country country="BY">Belarus</country></address><email>pozarickii.a.m@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3244-5664</contrib-id><name-alternatives><name xml:lang="en"><surname>Krasny</surname><given-names>S. A.</given-names></name><name xml:lang="ru"><surname>Красный</surname><given-names>С. А.</given-names></name></name-alternatives><address><country country="BY">Belarus</country></address><email>pozarickii.a.m@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9811-6591</contrib-id><name-alternatives><name xml:lang="en"><surname>Rolevich</surname><given-names>A. I.</given-names></name><name xml:lang="ru"><surname>Ролевич</surname><given-names>А. И.</given-names></name></name-alternatives><address><country country="BY">Belarus</country></address><email>pozarickii.a.m@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">N.N. Alexandrov Republican Scientific and Practical Center of Oncology and Medical Radiology</institution></aff><aff><institution xml:lang="ru">ГУ «Республиканский научно-практический центр онкологии и медицинской радиологии им. Н.Н. Александрова»</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2026-09-29" publication-format="electronic"><day>29</day><month>09</month><year>2026</year></pub-date><volume>22</volume><issue>2</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>15</fpage><lpage>25</lpage><history><date date-type="received" iso-8601-date="2025-10-27"><day>27</day><month>10</month><year>2025</year></date><date date-type="accepted" iso-8601-date="2026-02-18"><day>18</day><month>02</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://creativecommons.org/licenses/by/4.0/</ali:license_ref></license></permissions><self-uri xlink:href="https://oncourology.abvpress.ru/oncur/article/view/1985">https://oncourology.abvpress.ru/oncur/article/view/1985</self-uri><abstract xml:lang="en"><p><bold>Background.</bold> Active surveillance is a widely used treatment for clinically localized low-risk prostate cancer in the Western countries; however, its safety and efficacy in the Belarussian healthcare settings have not been established.</p> <p><bold>Aim.</bold> To evaluate the short-term outcomes of active surveillance in our cohort and to analyze predictive factors for reclassification.</p> <p><bold>Materials and methods.</bold> The study included 249 patients with verified clinically localized prostate cancer, a life expectancy of ≥10 years, and at least one surveillance biopsy. The primary endpoint was survival (time) to reclassification (increased differentiation group or increased clinical stage). Various predictive factors for reclassification were also analyzed.</p> <p><bold>Results.</bold> Median follow-up was 31.2 months (95 % confidence interval 28.2–34.1 months). Tumor reclassification occurred in 62 cases (24.9 %). Median time to reclassification was 65.2 months, and to treatment, 55 months. According to multivariate analysis, prostate-specific antigen density (<italic>p</italic> &lt;0.001) and percentage of positive cores in biopsy (<italic>p</italic> = 0.006) were the most significant predictors of reclassification.</p> <p><bold>Conclusion.</bold> The method demonstrated acceptable safety and efficacy results; however, continued follow-up is necessary to determine long-term outcomes.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Введение.</bold> Активное наблюдение является широко распространенным способом при лечении клинически локализованного рака предстательной железы низкого риска в странах Запада, однако его безопасность и эффективность в условиях отечественного здравоохранения не подтверждены.</p> <p><bold>Цель исследования</bold> – оценить краткосрочные результаты активного наблюдения в нашей когорте, а также проанализировать факторы прогноза реклассификации.</p> <p><bold>Материалы и методы.</bold> В исследование включены 249 пациентов с верифицированным клинически локализованным раком предстательной железы, ожидаемой продолжительностью жизни ≥10 лет и результатом минимум одной контрольной биопсии. Первичная конечная точка исследования – выживаемость (время) до реклассификации (увеличение группы дифференцировки или увеличение клинической стадии). Также проанализированы различные факторы прогноза реклассификации.</p> <p><bold>Результаты.</bold> Медиана периода наблюдения составила 31,2 мес (95 % доверительный интервал 28,2–34,1). Реклассификация опухолевого процесса произошла в 62 (24,9 %) случаях. Медиана времени до наступления реклассификации составила 65,2 мес, до лечения – 55 мес. По результатам мультивариантного анализа наибольшую значимость в прогнозировании реклассификации имели плотность простатического специфического антигена (<italic>p </italic>&lt;0,001) и доля пораженных столбиков в биопсии (<italic>p</italic> = 0,006).</p> <p><bold>Заключение.</bold> Использование метода показало приемлемые результаты по безопасности и эффективности, однако для определения исходов в долгосрочной перспективе необходимо продолжить наблюдение.</p></trans-abstract><kwd-group xml:lang="en"><kwd>active surveillance</kwd><kwd>reclassification</kwd><kwd>clinically localized prostate cancer</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>активное наблюдение</kwd><kwd>реклассификация</kwd><kwd>клинически локализованный рак предстательной железы</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Hamdy F., Donovan J., Lane J. et al. 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