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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">Journal of Clinical Practice</journal-id><journal-title-group><journal-title xml:lang="en">Journal of Clinical Practice</journal-title><trans-title-group xml:lang="ru"><trans-title>Клиническая практика</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2220-3095</issn><issn publication-format="electronic">2618-8627</issn><publisher><publisher-name xml:lang="en">Eco-Vector</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">688820</article-id><article-id pub-id-type="doi">10.17816/clinpract688820</article-id><article-id pub-id-type="edn">VBIHKP</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Case reports</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Клинические случаи</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">Osteonecrosis of the femoral head: a rare complication of combination therapy with bevacizumab and atezolizumab in a patient with non-small cell lung cancer</article-title><trans-title-group xml:lang="ru"><trans-title>Остеонекроз головки бедренной кости как редкое осложнение комбинированной терапии бевацизумабом и атезолизумабом у пациента с немелкоклеточным раком лёгкого</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4548-1026</contrib-id><contrib-id contrib-id-type="spin">3940-0321</contrib-id><name-alternatives><name xml:lang="en"><surname>Barbolina</surname><given-names>Tatyana D.</given-names></name><name xml:lang="ru"><surname>Барболина</surname><given-names>Татьяна Дмитриевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, PhD</p></bio><bio xml:lang="ru"><p>канд. мед. наук</p></bio><email>katan4ik@list.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2981-7666</contrib-id><contrib-id contrib-id-type="spin">3642-5948</contrib-id><name-alternatives><name xml:lang="en"><surname>Bagrova</surname><given-names>Svetlana G.</given-names></name><name xml:lang="ru"><surname>Багрова</surname><given-names>Светлана Геннадьевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, PhD</p></bio><bio xml:lang="ru"><p>канд. мед. наук</p></bio><email>s.bagrova@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4516-3255</contrib-id><contrib-id contrib-id-type="spin">1198-9039</contrib-id><name-alternatives><name xml:lang="en"><surname>Fedorova</surname><given-names>Aleksandra V.</given-names></name><name xml:lang="ru"><surname>Федорова</surname><given-names>Александра Владимировна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, PhD</p></bio><bio xml:lang="ru"><p>канд. мед. наук</p></bio><email>fedorova.ronc@gmail.com</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff3"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">National Medical Research Center of Oncology named after N.N. Blokhin</institution></aff><aff><institution xml:lang="ru">Национальный медицинский исследовательский центр онкологии имени Н.Н. Блохина</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Russian University of Medicine</institution></aff><aff><institution xml:lang="ru">Российский университет медицины</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Yaroslavl State Medical University</institution></aff><aff><institution xml:lang="ru">Ярославский государственный медицинский университет</institution></aff></aff-alternatives><pub-date date-type="preprint" iso-8601-date="2026-04-08" publication-format="electronic"><day>08</day><month>04</month><year>2026</year></pub-date><pub-date date-type="pub" iso-8601-date="2026-08-06" publication-format="electronic"><day>06</day><month>08</month><year>2026</year></pub-date><volume>17</volume><issue>2</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>157</fpage><lpage>167</lpage><history><date date-type="received" iso-8601-date="2025-08-07"><day>07</day><month>08</month><year>2025</year></date><date date-type="accepted" iso-8601-date="2026-03-29"><day>29</day><month>03</month><year>2026</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2026, Eco-Vector</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2026, Эко-Вектор</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="en">Eco-Vector</copyright-holder><copyright-holder xml:lang="ru">Эко-Вектор</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-nc-nd/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://clinpractice.ru/clinpractice/article/view/688820">https://clinpractice.ru/clinpractice/article/view/688820</self-uri><abstract xml:lang="en"><p><bold>BACKGROUND:</bold> Anti-angiogenic therapy is used in the treatment of many solid malignant neoplasms, both alone and in combination with immunotherapy, targeted therapy, and chemotherapy. Complications of drug therapy for malignant neoplasms may necessitate the permanent discontinuation of antitumor therapy, resulting in disability. These complications include bone disorders. Osteonecrosis of the jaw is most commonly associated with bone-modifying agents (bisphosphonates); however, it is extremely rare with other drugs. Necrosis of the femur is even less common. <bold>CLINICAL CASE DESCRIPTION:</bold> This article presents a clinical case of bilateral avascular necrosis of the femoral head in a patient with disseminated non-small cell lung cancer who was receiving long-term combination immunotherapy and targeted therapy. <bold>CONCLUSION:</bold> Avascular necrosis of the femoral head is a major concern, considering the expanding range of drug therapies for various malignant neoplasms and novel combination therapy options. The lack of a clear algorithm for managing patients with this serious complication of antitumor drug therapy highlights the relevance of this issue.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Обоснование.</bold> Антиангиогенная терапия применяется в лечении многих солидных злокачественных новообразований как самостоятельно, так и в комбинации с иммунотаргетной и химиотерапией. Развитие осложнений лекарственной терапии злокачественных новообразований, одним из которых является патология костной ткани, может приводить к полному прекращению противоопухолевого лечения и инвалидизации пациента. Чаще всего при этом развивается остеонекроз челюсти как осложнение применения остеомодифицирующих агентов, бисфосфонатов и крайне редко каких-либо других препаратов. Ещё реже встречается некроз бедренных костей. <bold>Описание клинического случая.</bold> Представлено клиническое наблюдение асептического аваскулярного некроза головок бедренных костей с двух сторон у пациента с диссеминированным немелкоклеточным раком лёгкого, длительно получающего комбинированную иммунотаргетную терапию. <bold>Заключение.</bold> Настороженность в отношении аваскулярного некроза головок бедренных костей обусловлена расширением спектра лекарственных агентов, применяемых для лечения различных злокачественных новообразований и создания новых комбинаций. Отсутствие чёткого алгоритма ведения пациентов с таким грозным осложнением противоопухолевой лекарственной терапии требует привлечения внимания к этой проблеме.</p></trans-abstract><kwd-group xml:lang="en"><kwd>lung cancer</kwd><kwd>aseptic necrosis of the femoral head</kwd><kwd>atezolizumab</kwd><kwd>bevacizumab</kwd><kwd>anti-VEGF</kwd><kwd>immunotherapy</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>рак лёгкого</kwd><kwd>асептический некроз головки бедренной кости</kwd><kwd>атезолизумаб</kwd><kwd>бевацизумаб</kwd><kwd>анти-VEGF</kwd><kwd>иммунотерапия</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Shannon BD, Trousdale RT. Femoral osteotomies for avascular necrosis of the femoral head. Clin Orthop Relat Res. 2004;(418):34–40. doi: 10.1097/00003086-200401000-00007</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>DeSmet AA, Dalinka MK, Alazraki NP, et al. 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