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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">Russian Journal of Biotherapy</journal-id><journal-title-group><journal-title xml:lang="en">Russian Journal of Biotherapy</journal-title><trans-title-group xml:lang="ru"><trans-title>Российский биотерапевтический журнал</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1726-9784</issn><issn publication-format="electronic">1726-9792</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">1242</article-id><article-id pub-id-type="doi">10.17650/1726-9784-2021-20-1-24-32</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>REVIEWS</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ОБЗОРЫ ЛИТЕРАТУРЫ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">RELEVANCE OF FURTHER CLINICAL TRIALS OF THE USE OF MELATONIN IN ADJUVANT CANCER THERAPY</article-title><trans-title-group xml:lang="ru"><trans-title>АКТУАЛЬНОСТЬ ДАЛЬНЕЙШИХ КЛИНИЧЕСКИХ ИССЛЕДОВАНИЙ ПРИМЕНЕНИЯ МЕЛАТОНИНА В АДЪЮВАНТНОЙ ОНКОТЕРАПИИ</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3002-2684</contrib-id><name-alternatives><name xml:lang="en"><surname>Smorodin</surname><given-names>Е. Р.</given-names></name><name xml:lang="ru"><surname>Смородин</surname><given-names>Е. П.</given-names></name></name-alternatives><address><country country="EE">Estonia</country></address><bio xml:lang="en"><p>Eugeniy Pavlovich Smorodin </p><p>42 Hiiu, Tallinn 11619</p></bio><bio xml:lang="ru"><p>Евгений Павлович Смородин  </p><p>Эстония, 11619 Таллинн, Хийу, 42</p></bio><email>jevgeni.smorodin@outlook.com</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Department of Virology &amp; Immunology, National Institute for Health Development</institution></aff><aff><institution xml:lang="ru">Департамент вирологии и иммунологии, Национальный институт развития здоровья</institution></aff></aff-alternatives><aff id="aff2"><institution></institution></aff><pub-date date-type="pub" iso-8601-date="2021-04-08" publication-format="electronic"><day>08</day><month>04</month><year>2021</year></pub-date><volume>20</volume><issue>1</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>24</fpage><lpage>32</lpage><history><date date-type="received" iso-8601-date="2021-04-07"><day>07</day><month>04</month><year>2021</year></date><date date-type="accepted" iso-8601-date="2021-04-07"><day>07</day><month>04</month><year>2021</year></date></history><permissions><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/></permissions><self-uri xlink:href="https://bioterapevt.abvpress.ru/jour/article/view/1242">https://bioterapevt.abvpress.ru/jour/article/view/1242</self-uri><abstract xml:lang="en"><p>The review was compiled from a PubMed, Web of Science, Scopus and Google search, which showed a lack  of information on clinical studies of melatonin (M) in oncology, despite numerous and promising experimental results. In preliminary clinical studies carried out by P. Lissony and his co‑authors, the therapeutic potential  of M as an adjuvant in chemotherapy, radiation therapy and immunotherapy at different tumor localizations  is noted. M alleviates the toxic effect of standard therapy and, according to the authors’ observations, increases its effectiveness. Exogenous M can be in demand as a circadian rhythm synchronizer for rehabilitation and im‑ provement of the quality of life of patients, because reduces distress and improves sleep, and in supportive and palliative therapy. Oncostatic activity of M is associated with the effect on: a) homeostasis and circadian rhythms, b) inflammation, cooperation of immunocytes and cytokine production in the tumor microenvironment, c) gene expression and signalling pathways associated with angiogenesis, proliferation and metastasis, d) metabolism, hypoxia and oxidative stress, e) apoptosis and resistance to chemotherapy and radiation therapy. The review contains the following sections:  physiological and pharmacological studies, epidemiological studies, clinical studies, the immunoregulatory role of melatonin, experimental studies. Currently, randomized  and long‑term clinical studies of homogeneous groups of patients with tumor stages II−III are in demand  for statistical processing of information of the M influence on the side effects of standard therapy, on the dy‑ namics of the disease, clinical parameters, as well as on the quality and duration of life after the main treatment.</p></abstract><trans-abstract xml:lang="ru"><p>Обзор составлен на основании поиска в PubMed, Web of Science, Scopus и Google, который показал недостаток информации по клиническим исследованиям применения мелатонина (М) в онкологии, несмотря на многочисленные и многообещающие результаты экспериментов. В предварительных клинических исследованиях, выполненных группой P. Lissony, отмечается терапевтический потенциал М в качестве вспомогательного средства при химио‑, лучевой терапии и иммунотерапии опухолей различной локализации. М смягчает токсическое действие стандартной терапии и, по наблюдениям авторов, повышает ее эффективность. Экзогенный М может быть востребован в качестве синхронизатора циркадного ритма для реабилитации и улучшения качества жизни больных, так как уменьшает дистресс и улучшает сон, а также в поддерживающей и паллиативной терапии. Онкостатическая активность М связана с влиянием: на) на гомеостаз и циркадные ритмы, б) воспаление, кооперацию иммуноцитов и продукцию цитокинов в микроокружении опухоли, в) экспрессию генов и сигнальные пути, связанные с ангиогенезом, пролиферацией и метастазированием, г) метаболизм, гипоксию и оксидативный стресс, д) апоптоз и резистентность к химио‑ и лучевой терапии. Обзор содержит следующие разделы: физиологические и фармакологические исследования, эпидемиологические исследования, клинические исследования, иммунорегуляторная роль М, экспериментальные исследования. В настоящее время востребованы рандомизированные и длительные клинические исследования гомогенных групп больных со II−III стадиями рака для статистической обработки информации по влиянию М на побочное действие стандартной терапии, динамику болезни, клинические параметры, а также на качество и продолжительность жизни после основного лечения.</p></trans-abstract><kwd-group xml:lang="en"><kwd>melatonin</kwd><kwd>adjuvant cancer therapy</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>мелатонин</kwd><kwd>адъювантная терапия рака</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Posadzki P.P., Bajpai R., Kyaw B.M. et al. 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