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<article article-type="research-article" dtd-version="1.3" 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" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">safetyrisk</journal-id><journal-title-group><journal-title xml:lang="ru">Безопасность и риск фармакотерапии</journal-title><trans-title-group xml:lang="en"><trans-title>Safety and Risk of Pharmacotherapy</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2312-7821</issn><issn pub-type="epub">2619-1164</issn><publisher><publisher-name>Federal State Budgetary Institution ‘Scientific Centre for Expert Evaluation of Medicinal Products’ of the Ministry of Health of the Russian Federation (FSBI ‘SCEEMP’)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.30895/2312-7821-2024-12-4-463-476</article-id><article-id custom-type="elpub" pub-id-type="custom">safetyrisk-463</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ДОКЛИНИЧЕСКИЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>PRECLINICAL STUDIES</subject></subj-group></article-categories><title-group><article-title>WoE-анализ и ключевые факторы риска при доклинической разработке лекарственных препаратов: обзор</article-title><trans-title-group xml:lang="en"><trans-title>WoE Analysis and Key Risk Factors in Preclinical Development of Medicinal Products: A Review</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5121-0858</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Енгалычева</surname><given-names>Г. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Engalycheva</surname><given-names>G. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Енгалычева Галина Нинелевна, канд. биол. наук</p><p>Петровский б-р, д. 8, стр. 2, Москва, 127051</p></bio><bio xml:lang="en"><p>Galina N. Engalycheva, Cand. Sci. (Biol.)</p><p>8/2 Petrovsky Blvd, Moscow 127051</p></bio><email xlink:type="simple">engalycheva@expmed.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6729-2349</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сюбаев</surname><given-names>Р. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Syubaev</surname><given-names>R. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сюбаев Рашид Даутович, д-р мед. наук</p><p>Петровский б-р, д. 8, стр. 2, Москва, 127051</p></bio><bio xml:lang="en"><p>Rashid D. Syubaev, Dr. Sci. (Med.)</p><p>8/2 Petrovsky Blvd, Moscow 127051</p></bio><email xlink:type="simple">subaev@expmed.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное учреждение «Научный центр экспертизы средств медицинского применения» Министерства здравоохранения Российской Федерации</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Scientific Centre for Expert Evaluation of Medicinal Products</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>05</day><month>11</month><year>2024</year></pub-date><volume>12</volume><issue>4</issue><fpage>463</fpage><lpage>476</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Енгалычева Г.Н., Сюбаев Р.Д., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Енгалычева Г.Н., Сюбаев Р.Д.</copyright-holder><copyright-holder xml:lang="en">Engalycheva G.N., Syubaev R.D.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.risksafety.ru/jour/article/view/463">https://www.risksafety.ru/jour/article/view/463</self-uri><abstract><sec><title>ВВЕДЕНИЕ</title><p>ВВЕДЕНИЕ. В последние годы в нормативных документах Евразийского экономического союза и Российской Федерации используется понятие «весомость доказательств» (weight of evidence, WoE). Зарубежные регуляторные органы уделяют большое внимание прозрачности данных при документировании и оценке весомости доказательств, что отражено в соответствующих нормативных документах. В то же время не существует единой русскоязычной терминологии, четкого понимания принципов анализа и методики практического применения данного подхода при разработке лекарственных средств и проведении экспертизы результатов доклинических исследований, что требует систематизации информации и подготовки практических рекомендаций по применению WoE-анализа.</p></sec><sec><title>ЦЕЛЬ</title><p>ЦЕЛЬ. Анализ нормативных документов и научно-методических источников, освещающих понятие и методы WoE-анализа, для оценки его возможностей и практического применения при разработке лекарственных средств и проведении экспертизы полученных результатов.</p></sec><sec><title>ОБСУЖДЕНИЕ</title><p>ОБСУЖДЕНИЕ. В статье уточняется смысл понятий WoE и WoE-анализ, представленных в документах Международного совета по гармонизации технических требований к фармацевтическим препаратам для использования человеком (ICH), Организации экономического сотрудничества и развития (OECD), Европейского химического агентства (ECHA) и других, с учетом особенностей русскоязычной терминологии. На примере исследований иммунотоксичности, репродуктивной токсичности и канцерогенности представлена классификация ключевых факторов риска, которые необходимо учитывать при оценке весомости доказательств. Анализ этих данных является критически важным для планирования и интерпретации результатов доклинических исследований и проведения экспертизы безопасности лекарственных средств. Приведены примеры WoE-анализа при рассмотрении вопроса о необходимости проведения дополнительных исследований на неполовозрелых животных при разработке препаратов на основе малых молекул и моноклональных антител для применения у детей.</p></sec><sec><title>ЗАКЛЮЧЕНИЕ</title><p>ЗАКЛЮЧЕНИЕ. Рассмотренные алгоритмы и критерии оценки при проведении WoE-анализа могут быть внедрены организаторами и исполнителями доклинических исследований лекарственных средств и применяться при проведении экспертизы лекарственных средств.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>INTRODUCTION</title><p>INTRODUCTION. In recent years, the Russian Federation and the Eurasian Economic Union have included the concept of ‘weight of evidence’ (WoE) in regulatory documents. International regulators place great emphasis on data transparency in documenting and assessing the WoE, and their position is reflected in the relevant regulatory documents. However, the Russian Federation has faced the absence of consistent Russian-language terminology in this area, the lack of a clear vision of WoE assessment principles, and the need for a sound understanding of applied WoE methods for pharmaceutical development and regulatory review of preclinical study results. These gaps require collated information on WoE assessment and practical guidance for its use.</p></sec><sec><title>AIM</title><p>AIM. This study aimed to analyse regulatory documents as well as scientific and methodological publications on the WoE concept and assessment methods in order to investigate the opportunities and practical applications of WoE analysis in the development of medicines and the regulatory review of study results.</p></sec><sec><title>DISCUSSION</title><p>DISCUSSION. This article covers documents by the International Council for Harmonisation of Technical Requirements for Pharmaceuticals for Human Use (ICH), the Organisation for Economic Co-operation and Development (OECD), the European Chemicals Agency (ECHA), and other organisations. Using these documents and taking into account Russian terminology, the authors clarify the WoE as a concept and explain its assessment. Furthermore, the article classifies the key risk factors that must be considered in WoE analysis, with examples drawn from immunotoxicity, reproductive toxicity, and carcinogenicity studies. Analysing such data is critical to the design of preclinical studies, interpretation of their results, and safety evaluation of medicines. This article provides examples of WoE assessments conducted to consider the need for additional preclinical studies in juvenile animals in the development of small molecules and monoclonal antibodies for paediatric use.</p></sec><sec><title>CONCLUSION</title><p>CONCLUSION. The WoE assessment algorithms and criteria described in this article may be implemented by preclinical study initiators, their research teams, and regulatory experts evaluating medicines.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>разработка лекарственных средств</kwd><kwd>весомость доказательств</kwd><kwd>WoE-анализ</kwd><kwd>доклинические исследования</kwd><kwd>оценка риска</kwd><kwd>факторы риска</kwd><kwd>иммунотоксичность</kwd><kwd>репродуктивная токсичность</kwd><kwd>канцерогенность</kwd><kwd>неполовозрелые животные</kwd></kwd-group><kwd-group xml:lang="en"><kwd>drug development</kwd><kwd>weight of evidence</kwd><kwd>WoE assessment</kwd><kwd>preclinical studies</kwd><kwd>risk assessment</kwd><kwd>risk factors</kwd><kwd>immunotoxicity</kwd><kwd>reproductive toxicity</kwd><kwd>carcinogenicity</kwd><kwd>juvenile animals</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в рамках государственного задания ФГБУ «НЦЭСМП» Минздрава России № 056-00026-24-01 на проведение прикладных научных исследований (номер государственного учета НИР 124022300127-0)</funding-statement><funding-statement xml:lang="en">This study was conducted by the Scientific Centre for Expert Evaluation of Medicinal Products as part of the applied research funded under State Assignment No. 056-00026-24-01 (R&amp;D Registry No. 124022300127-0)</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Meek ME, Boobis A, Cote I, Dellarco V, Fotakis G, Munn S, et al. 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