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<article article-type="review-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">10.30895/2312-7821-2024-12-4-367-379</article-id><article-id custom-type="elpub" pub-id-type="custom">safetyrisk-456</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>ГЛАВНАЯ ТЕМА: ТЕНЕВЫЕ СТОРОНЫ ФАРМАКОТЕРАПИИ: НЕЖЕЛАТЕЛЬНЫЕ РЕАКЦИИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MAIN TOPIC: THE DARK SIDE OF PHARMACOTHERAPY: ADVERSE DRUG REACTIONS</subject></subj-group></article-categories><title-group><article-title>Современные препараты месалазина: различия кишечнорастворимых лекарственных форм и фармацевтические риски снижения клинической эффективности (обзор)</article-title><trans-title-group xml:lang="en"><trans-title>Current Mesalazine Products: Differences in Enteric-Coated Dosage Forms and Pharmaceutical Risks of Clinical Efficacy Reduction (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/0000-0002-7163-7119</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сереброва</surname><given-names>С. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Serebrova</surname><given-names>S. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сереброва Светлана Юрьевна, д-р мед. наук, профессор</p><p>Петровский б-р, д. 8, стр. 2, Москва, 127051, </p><p>ул. Трубецкая, д. 8, стр. 2, Москва, 11999</p></bio><bio xml:lang="en"><p>Svetlana Yu. Serebrova, Dr. Sci. (Med.), Professor</p><p>8/2 Petrovsky Blvd, Moscow 127051, </p><p>8/2 Trubetskaya St., 8, Moscow 119991</p></bio><email xlink:type="simple">serebrova@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/0000-0002-6150-5796</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Евтеев</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Evteev</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Евтеев Владимир Александрович </p><p>Петровский б-р, д. 8, стр. 2, Москва, 127051</p></bio><bio xml:lang="en"><p>Vladimir A. Evteev</p><p>8/2 Petrovsky Blvd, Moscow 127051</p></bio><email xlink:type="simple">evteev@expmed.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1972-4386</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Демченкова</surname><given-names>Е. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Demchenkova</surname><given-names>E. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Демченкова Елена Юрьевна, канд. фарм. наук</p><p>Петровский б-р, д. 8, стр. 2, Москва, 127051, </p><p>ул. Трубецкая, д. 8, стр. 2, Москва, 119991</p></bio><bio xml:lang="en"><p>Elena Yu. Demchenkova, Cand. Sci. (Pharm.)</p><p>8/2 Petrovsky Blvd, Moscow 127051, </p><p>8/2 Trubetskaya St., 8, Moscow 119991</p></bio><email xlink:type="simple">demchenkova@mail.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9198-8661</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Журавлева</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Zhuravleva</surname><given-names>M. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Журавлева Марина Владимировна, д-р мед. наук, профессор</p><p>Петровский б-р, д. 8, стр. 2, Москва, 127051, </p><p>ул. Трубецкая, д. 8, стр. 2, Москва, 119991</p></bio><bio xml:lang="en"><p>Мarina V. Zhuravleva, Dr. Sci. (Med.), Professor</p><p>8/2 Petrovsky Blvd, Moscow 127051, </p><p>8/2 Trubetskaya St., 8, Moscow 119991</p></bio><email xlink:type="simple">zhuravleva@expmed.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7024-5546</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Прокофьев</surname><given-names>А. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Prokofiev</surname><given-names>A. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Прокофьев Алексей Борисович, д-р мед. наук, профессор</p><p>Петровский б-р, д. 8, стр. 2, Москва, 127051, </p><p>ул. Трубецкая, д. 8, стр. 2, Москва, 119991</p></bio><bio xml:lang="en"><p>Alexey B. Prokofiev, Dr. Sci. (Med.), Professor</p><p>8/2 Petrovsky Blvd, Moscow 127051, </p><p>8/2 Trubetskaya St., 8, Moscow 119991</p></bio><email xlink:type="simple">prokofiev@expmed.ru</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Федеральное государственное бюджетное учреждение «Научный центр экспертизы средств медицинского применения» Министерства здравоохранения Российской Федерации;&#13;
Федеральное государственное автономное образовательное учреждение высшего образования «Первый Московский государственный медицинский университет им. И.М. Сеченова» Министерства здравоохранения Российской Федерации   (Сеченовский Университет)<country>Россия</country></aff><aff xml:lang="en">Scientific Centre for Expert Evaluation of Medicinal Products;&#13;
Sechenov First Moscow State Medical University (Sechenov University)<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Федеральное государственное бюджетное учреждение «Научный центр экспертизы средств медицинского применения» Министерства здравоохранения Российской Федерации<country>Россия</country></aff><aff xml:lang="en">Scientific Centre for Expert Evaluation of Medicinal Products<country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru">Федеральное государственное бюджетное учреждение «Научный центр экспертизы средств медицинского применения» Министерства здравоохранения Российской Федерации;&#13;
Федеральное государственное автономное образовательное учреждение высшего образования «Первый Московский государственный медицинский университет им. И.М. Сеченова» Министерства здравоохранения Российской Федерации   (Сеченовский   Университет)<country>Россия</country></aff><aff xml:lang="en">Scientific Centre for Expert Evaluation of Medicinal Products;&#13;
Sechenov First Moscow State Medical University (Sechenov University)<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>11</day><month>10</month><year>2024</year></pub-date><volume>12</volume><issue>4</issue><fpage>367</fpage><lpage>379</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Сереброва С.Ю., Евтеев В.А., Демченкова Е.Ю., Журавлева М.В., Прокофьев А.Б., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Сереброва С.Ю., Евтеев В.А., Демченкова Е.Ю., Журавлева М.В., Прокофьев А.Б.</copyright-holder><copyright-holder xml:lang="en">Serebrova S.Y., Evteev V.V., Demchenkova E.Y., Zhuravleva M.V., Prokofiev A.B.</copyright-holder><license 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/456">https://www.risksafety.ru/jour/article/view/456</self-uri><abstract><sec><title>ВВЕДЕНИЕ</title><p>ВВЕДЕНИЕ. Препараты месалазина (5-аминосалициловая кислота) для перорального применения широко используются в лечении воспалительных заболеваний кишечника, в частности язвенного колита. Клиническая эффективность таких препаратов напрямую зависит от состава и свойств полимерных соединений, обеспечивающих таргетную доставку месалазина к пораженным участкам толстой кишки. Однако накопленная к настоящему   моменту   информация   позволяет   предположить,   что   высвобождение   месалазина из кишечнорастворимых лекарственных форм в условиях человеческого организма отличается от его поведения в модельных условиях, что требует дополнительного изучения.</p></sec><sec><title>ЦЕЛЬ</title><p>ЦЕЛЬ. Систематизация информации о кишечнорастворимых полимерах, применяемых в производстве препаратов месалазина, для оценки фармацевтических рисков снижения эффективности терапии язвенного колита.</p></sec><sec><title>ОБСУЖДЕНИЕ</title><p>ОБСУЖДЕНИЕ. Особенности абсорбции и метаболизма месалазина определяют необходимость применения препарата в кишечнорастворимых лекарственных формах для доставки действующего вещества непосредственно к зонам поражения толстой кишки. Установлено, что наиболее часто при изготовлении препаратов месалазина для приема внутрь используют сополимер метакриловой кислоты и метилметакрилата в соотношении мономеров 1:1, который высвобождает действующее вещество при рН 7,0. Также может применяться сополимер метакриловой кислоты и этилакрилата в соотношении мономеров 1:1, растворяющийся при рН 5,5. Показано, что у пациентов с воспалительными заболеваниями кишечника могут быть широкие и перекрывающиеся диапазоны значений рН среды в органах желудочно-кишечного тракта (1,0–7,0 в желудке, 5,0–6,2 в двенадцатиперстной, 6,1–7,1 в тощей, 7,4–7,5 в подвздошной кишках, 5,7–7,5 в толстой кишке с возможностью ее закисления при язвенном колите), кроме того, значительно варьирует скорость транзита кишечного содержимого. Под влиянием этих факторов месалазин может высвобождаться из лекарственных форм в желудке и тонкой кишке, не достигая толстой кишки, что создает риск снижения клинической эффективности препаратов и развития системных нежелательных реакций.</p></sec><sec><title>ВЫВОДЫ</title><p>ВЫВОДЫ. Cополимер метакриловой кислоты и метилметакрилата обеспечивает таргетную доставку 5-аминосалициловой кислоты из таблеток и гранул при лечении язвенного колита, способствуя реализации ее местного действия в толстой кишке у большинства пациентов. Разработчикам и производителям лекарственных форм месалазина для приема внутрь при выборе кишечнорастворимого полимера следует учитывать фармацевтические риски снижения эффективности препарата.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>INTRODUCTION</title><p>INTRODUCTION. Oral mesalazine (5-aminosalicylic acid) products are commonly used to treat inflammatory bowel disease, in particular,  ulcerative  colitis.  The  clinical  efficacy  of  these  medicinal  products  depends  directly on the composition and properties of the polymers used to deliver mesalazine to the affected areas of the colon. However, the information that has been accumulated to date suggests that the release of mesalazine from enteric-coated dosage forms in gastrointestinal tract simulations differs from that in the actual human gastrointestinal tract, which necessitates further research.</p></sec><sec><title>AIM</title><p>AIM. This study aimed to systematise information on the polymers used in the enteric coating of mesalazine products and to assess the pharmaceutical risks associated with the potential reduction in the efficacy of ulcerative colitis therapy.</p></sec><sec><title>DISCUSSION</title><p>DISCUSSION. The absorption and metabolism of mesalazine dictate the need for enteric-coated dosage forms to deliver the active substance directly to the affected areas of the colon. The most common polymer used in the manufacturing of oral mesalazine products is a methacrylic acid–methyl methacrylate copolymer with a monomer ratio of 1:1, which releases the active substance at pH 7.0. Some manufacturers use a methacrylic acid–ethyl acrylate copolymer with a monomer ratio of 1:1, which dissolves at pH 5.5. The gastrointestinal pH in patients with  inflammatory  bowel  disease  may  vary  in  wide  and  often  overlapping  ranges  depending on the organ (1.0–7.0 in the stomach, 5.0–6.2 in the duodenum, 6.1–7.1 in the jejunum, 7.4–7.5 in the ileum, and 5.7–7.5 in the colon with a possibility of acidification in ulcerative colitis patients). The rate of gastrointestinal transit varies widely as well. These factors may cause premature release of mesalazine in the stomach or the small intestine before the dosage form reaches the colon, which poses the risks of reduced clinical efficacy and systemic adverse effects.</p></sec><sec><title>CONCLUSIONS</title><p>CONCLUSIONS. In the vast majority of ulcerative colitis patients, the methacrylic acid–methyl methacrylate copolymer provides targeted delivery of 5-aminosalicylic acid from tablets and granules, facilitating its local action in the colon. However, developers and manufacturers selecting the polymer for enteric coating of oral mesalazine dosage forms should consider the pharmaceutical risks associated with reduced clinical efficacy.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>месалазин</kwd><kwd>месаламин</kwd><kwd>5-аминосалициловая   кислота</kwd><kwd>язвенный   колит</kwd><kwd>болезнь Крона</kwd><kwd>толстая кишка</kwd><kwd>воспалительные заболевания кишечника</kwd><kwd>кишечнорастворимые оболочки</kwd><kwd>кишечнорастворимые лекарственные формы</kwd><kwd>сополимер метакриловой кислоты и метилметакрилата</kwd></kwd-group><kwd-group xml:lang="en"><kwd>mesalazine</kwd><kwd>mesalamine</kwd><kwd>5-aminosalicylic acid</kwd><kwd>ulcerative colitis</kwd><kwd>Crohn’s disease</kwd><kwd>colon</kwd><kwd>inflammatory bowel disease</kwd><kwd>enteric coatings</kwd><kwd>enteric-coated dosage forms</kwd><kwd>methacrylic acid-methyl methacrylate copolymer</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>Работа выполнена в рамках государственного задания ФГБУ «НЦЭСМП» Минздрава России № 056-00026-24-01 на проведение прикладных научных исследований (номер государственного учета НИР № 124022200076-2)</funding-statement></funding-group><funding-group xml:lang="en"><funding-statement>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. 124022200076-2)</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">GBD 2017 Inflammatory Bowel Disease Collaborators. 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