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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="other" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Head and Neck Tumors</journal-id><journal-title-group><journal-title xml:lang="en">Head and Neck Tumors</journal-title><trans-title-group xml:lang="ru"><trans-title>Опухоли головы и шеи</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2222-1468</issn><issn publication-format="electronic">2411-4634</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">887</article-id><article-id pub-id-type="doi">10.17650/2222-1468-2023-13-2-35-43</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>ORIGINAL REPORTS</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНЫЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">Pembrolizumab in treatment of head and neck squamous cell carcinoma: clinical cases and real-world practice</article-title><trans-title-group xml:lang="ru"><trans-title>Пембролизумаб в лечении плоскоклеточного рака головы и шеи: клинические исследования и реальная практика</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6851-9867</contrib-id><name-alternatives><name xml:lang="en"><surname>Alymov</surname><given-names>Yu. V.</given-names></name><name xml:lang="ru"><surname>Алымов</surname><given-names>Ю. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Yuri vladimirovich Alymov</p><p>24 Kashirskoe Shosse, Moscow 115522</p></bio><bio xml:lang="ru"><p>Юрий Владимирович Алымов</p><p>115522 Москва, Каширское шоссе, 24</p></bio><email>hnonco@yvalymov.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5421-5985</contrib-id><name-alternatives><name xml:lang="en"><surname>Romanov</surname><given-names>I. S.</given-names></name><name xml:lang="ru"><surname>Романов</surname><given-names>И. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>24 Kashirskoe Shosse, Moscow 115522</p><p>1 Ostrovityanova St., Moscow 117997</p></bio><bio xml:lang="ru"><p>115522 Москва, Каширское шоссе, 24</p><p>117997 Москва, ул. Островитянова, 1</p></bio><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/0000-0002-6796-0968</contrib-id><name-alternatives><name xml:lang="en"><surname>Ignatova</surname><given-names>A. V.</given-names></name><name xml:lang="ru"><surname>Игнатова</surname><given-names>А. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>24 Kashirskoe Shosse, Moscow 115522</p><p>6 Miklukho-Maklaya St., Moscow 117198</p></bio><bio xml:lang="ru"><p>115522 Москва, Каширское шоссе, 24</p><p>117198 Москва, ул. Миклухо-Маклая, 6</p></bio><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff3"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">N.N. Blokhin National Research Institute of Oncology, Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">ФГБУ «Национальный медицинский исследовательский центр онкологии им. Н.Н. Блохина» Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Pirogov Russian National Research Medical University, Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">ФГАОУ ВО «Российский национальный исследовательский медицинский университет им. Н.И. Пирогова» Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Peoples’ Friendship University of Russia</institution></aff><aff><institution xml:lang="ru">ФГАОУ ВО «Российский университет дружбы народов»</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2023-09-13" publication-format="electronic"><day>13</day><month>09</month><year>2023</year></pub-date><volume>13</volume><issue>2</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>35</fpage><lpage>43</lpage><history><date date-type="received" iso-8601-date="2023-09-12"><day>12</day><month>09</month><year>2023</year></date><date date-type="accepted" iso-8601-date="2023-09-12"><day>12</day><month>09</month><year>2023</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2023, Alymov Y.V., Romanov I.S., Ignatova A.V.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2023, Алымов Ю.В., Романов И.С., Игнатова А.В.</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="en">Alymov Y.V., Romanov I.S., Ignatova A.V.</copyright-holder><copyright-holder xml:lang="ru">Алымов Ю.В., Романов И.С., Игнатова А.В.</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/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://ogsh.abvpress.ru/jour/article/view/887">https://ogsh.abvpress.ru/jour/article/view/887</self-uri><abstract xml:lang="en"><p>Recurrent and metastatic head and neck squamous cell carcinoma is a hard-to-treat pathology. median overall survival for standard chemotherapy regimens does not exceed 11 months. One of the factors decreasing treatment effectivenessis frequency of severe adverse events which are observed in every 2nd patient during standard therapy regimens. moreover,  even  if  notable  tumor  regression  is  achieved,  this  effect  is  transient.  Development  of  immunotherapy  drugs, namely pembrolizumab, helps solve these problems. Clinical trials and real-world use of the drug show that in the 1st and 2nd therapy lines for recurrent and metastatic head and neck squamous cell carcinoma, pembrolizumab allows to achieve persistent treatment response, increase overall survival, and decrease the frequency of adverse events.</p></abstract><trans-abstract xml:lang="ru"><p>Рецидивный и метастатический плоскоклеточный рак головы и шеи – патология, плохо поддающаяся лечению. Медиана общей выживаемости при использовании стандартных химиотерапевтических режимов не превышает 11 мес. Одним из факторов, снижающих эффективность лечения, является частота развития тяжелых нежелательных явлений, которые при применении стандартных режимов терапии отмечаются у каждого второго пациента. более того, даже при достижении выраженной регрессии опухоли при использовании стандартной химиотерапии эффект кратковременен. появление иммуноонкологических препаратов, в частности пембролизумаба, способствует решению этих проблем. Клинические исследования и практическое применение данного препарата демонстрируют, что в 1-й или 2-й линии лекарственной терапии рецидивного и метастатического плоскоклеточного рака головы и шеи пембролизумаб позволяет добиться стойкого ответа на лечение, повысить показатели общей выживаемости и снизить частоту развития побочных эффектов.</p></trans-abstract><kwd-group xml:lang="en"><kwd>immunotherapy</kwd><kwd>drug treatment</kwd><kwd>pembrolizumab</kwd><kwd>pembroria</kwd><kwd>carcinoma</kwd><kwd>head and neck</kwd><kwd>squamous cell carcinoma</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>иммунотерапия</kwd><kwd>лекарственное лечение</kwd><kwd>пембролизумаб</kwd><kwd>пемброриа</kwd><kwd>карцинома</kwd><kwd>голова и шея</kwd><kwd>плоскоклеточный рак</kwd></kwd-group><funding-group><funding-statement xml:lang="en">The publication was prepared with the sponsorship of BIOCAD.</funding-statement><funding-statement xml:lang="ru">Публикация подготовлена при спонсорской поддержке компании BIOCAD.</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Malignant neoplasms in Russia in 2017 (morbidity and mortality). 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