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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">pharmjournal</journal-id><journal-title-group><journal-title xml:lang="ru">Разработка и регистрация лекарственных средств</journal-title><trans-title-group xml:lang="en"><trans-title>Drug development &amp; registration</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2305-2066</issn><issn pub-type="epub">2658-5049</issn><publisher><publisher-name>LLC «CPHA»</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.33380/2305-2066-2021-10-4(1)-108-114</article-id><article-id custom-type="elpub" pub-id-type="custom">pharmjournal-1108</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>МЕТОДЫ АНАЛИЗА ЛЕКАРСТВЕННЫХ СРЕДСТВ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ANALYTICAL METHODS</subject></subj-group></article-categories><title-group><article-title>Разработка и изучение стабильности растворов коменовой кислоты</article-title><trans-title-group xml:lang="en"><trans-title>Development and study of the stability of comenic acid solutions</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6253-0213</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Биткина</surname><given-names>Т. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Bitkina</surname><given-names>T. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Биткина Татьяна Александровна</p><p>197376, г. Санкт-Петербург, ул. Профессора Попова, д. 14, лит. А</p><p>194064, Россия, г. Санкт-Петербург, Тихорецкий пр., д. 4, лит. А</p></bio><bio xml:lang="en"><p>Tatyana А. Bitkina</p><p>14A, Prof. Popov str., Saint-Petersburg, 197376, Russia</p><p>4А, Tikhoretsky av., Saint-Petersburg, 194064, Russia</p></bio><email xlink:type="simple">tatiana.bitkina@pharminnotech.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6864-6794</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Басевич</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Basevich</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>197376, г. Санкт-Петербург, ул. Профессора Попова, д. 14, лит. А</p></bio><bio xml:lang="en"><p>14A, Prof. Popov str., Saint-Petersburg, 197376, Russia</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное образовательное учреждение высшего образования «Санкт-Петербургский государственный химико-фармацевтический университет» Министерства здравоохранения Российской Федерации; ООО «Фарма Ген»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Saint-Petersburg State Chemical-Pharmaceutical University; "Pharma Gene" LLC</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное образовательное учреждение высшего образования «Санкт-Петербургский государственный химико-фармацевтический университет» Министерства здравоохранения Российской Федерации</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Saint-Petersburg State Chemical-Pharmaceutical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>24</day><month>12</month><year>2021</year></pub-date><volume>10</volume><issue>4</issue><issue-title>Приложение 1</issue-title><fpage>108</fpage><lpage>114</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Биткина Т.А., Басевич А.В., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Биткина Т.А., Басевич А.В.</copyright-holder><copyright-holder xml:lang="en">Bitkina T.A., Basevich A.V.</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.pharmjournal.ru/jour/article/view/1108">https://www.pharmjournal.ru/jour/article/view/1108</self-uri><abstract><sec><title>Введение</title><p>Введение. В статье представлена разработка растворов на основе субстанции коменовой кислоты. Произведена оценка критериев исследуемых составов, влияющих на их стабильность в процессе хранения в рамках концепции Quality-by-Design. Установлены оптимальные составы растворов коменовой кислоты.</p></sec><sec><title>Цель</title><p>Цель. Цель исследования – разработка растворов на основе субстанции коменовой кислоты и определение наиболее стабильных вариантов исполнения.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Исследование растворов коменовой кислоты осуществлялось при помощи рН-метра лабораторного PB-11-P11 (SARTORIUS, Германия) и хроматографа жидкостного/ионного «Стайер» (АО «Аквилон», Россия).</p></sec><sec><title>Результаты и обсуждения</title><p>Результаты и обсуждения. Проведенное исследование позволило определить наиболее стабильные составы растворов на основе субстанции коменовой кислоты и установить оптимальные показатели критериев их стабильности. Установлено, что растворы коменовой кислоты наиболее стабильны в диапазоне рН: от 4,0 до 6,0. При этом независимо от изученных способов нейтрализации коменовой кислоты растворы нестабильны в концентрациях 25 мг/мл и более.</p></sec><sec><title>Заключение</title><p>Заключение. В результате исследования определены оптимальные составы растворов на основе субстанции коменовой кислоты. Произведен сравнительный анализ вспомогательных веществ, повышающих растворимость коменовой кислоты в водных растворителях. Установлены критерии стабильности исследуемых растворов и определены их значения для обеспечения стабильности разрабатываемого препарата.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. The article presents the development of solutions based on the comenic acid substance. The criteria of the studied compositions that affect their stability during storage are evaluated within the framework of the Quality-by-Design concept. The optimal compositions of comenic acid solutions have been established.</p></sec><sec><title>Aim</title><p>Aim. The purpose of the study is to develop solutions based on the comenic acid substance and determine the most stable variants of execution.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. The study of comenic acid solutions was carried out by using a laboratory pH meter PB-11-P11 (SARTORIUS, Germany) and a liquid/ion chromatograph "Stayer" ("Akvilon" JSC, Russia).</p></sec><sec><title>Results and discussion</title><p>Results and discussion. The study made it possible to determine the most stable compositions of solutions based on the comenic acid substance and to establish optimal indicators of their stability criteria. It was found that solutions of comenic acid are the most stable in the pH range: from 4.0 to 6.0. At the same time, regardless of the studied methods of neutralization of comenic acid, solutions are unstable at concentrations of 25 mg/ml or more.</p></sec><sec><title>Conclusion</title><p>Conclusion. As a result of the study, the optimal compositions of solutions based on the comenic acid substance were determined. A comparative analysis of excipients that increase the solubility of comenic acid in aqueous solvents is performed. The stability criteria of the studied solutions are established and their values for ensuring the stability of the developed drug are determined.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>коменовая кислота</kwd><kwd>стабильность растворов</kwd><kwd>анальгетическое действие</kwd><kwd>Quality-by-Design</kwd></kwd-group><kwd-group xml:lang="en"><kwd>comenic acid</kwd><kwd>sodium salt of comenic acid</kwd><kwd>analgesic effect</kwd><kwd>stability of solutions</kwd><kwd>Quality-by-Design</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Результаты работы получены с использованием оборудования ЦКП «Аналитический центр ФГБОУ ВО СПХФУ Минздрава России» в рамках соглашения № 075-15-2021-685 от 26 июля 2021 года при финансовой поддержке Минобрнауки России»</funding-statement><funding-statement xml:lang="en">The results of the work were obtained using the equipment of the Center for Collective Use "Analytical Center of Saint-Petersburg State Chemical and Pharmaceutical University" within the framework of agreement No. 075-15-2021-685 dated July 26, 2021 with the financial support of the Ministry of Education and Science of Russia</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">Shurygina L. 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