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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">gastro-j</journal-id><journal-title-group><journal-title xml:lang="ru">Российский журнал гастроэнтерологии, гепатологии, колопроктологии</journal-title><trans-title-group xml:lang="en"><trans-title>Russian Journal of Gastroenterology, Hepatology, Coloproctology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1382-4376</issn><issn pub-type="epub">2658-6673</issn><publisher><publisher-name>«Gastro» LLC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.22416/1382-4376-2022-32-6-40-46</article-id><article-id custom-type="elpub" pub-id-type="custom">gastro-j-747</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>ОРИГИНАЛЬНЫЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL ARTICLES</subject></subj-group></article-categories><title-group><article-title>Оценка клинической эффективности преднизолона в лечении воспалительных заболеваний кишечника при разных способах дозирования</article-title><trans-title-group xml:lang="en"><trans-title>Evaluation of the Clinical Efficacy of Prednisolone in the Treatment of Inflammatory Bowel Diseases with Different Dosage Methods</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1475-6584</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Алексеева</surname><given-names>О. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Alekseeva</surname><given-names>O. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алексеева Ольга Поликарповна — доктор медицинских наук, профессор; руководитель гастроэнтерологического центра.</p><p>603093, Нижний Новгород, ул. Родионова, д. 190</p></bio><bio xml:lang="en"><p>Olga P. Alekseeva — Dr. Sci. (Med.), Prof., Head of the Gastroenterological Center of the Nizhny Novgorod Regional Clinical Hospital named after N.A. Semashko.</p><p>603093, Nizhny Novgorod, Rodionova str., 190</p></bio><email xlink:type="simple">al_op@mail.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/0000-0001-7038-3578</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Криштопенко</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Krishtopenko</surname><given-names>S. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Криштопенко Сергей Владимирович — доктор медицинских наук, врач-гастроэнтеролог.</p><p>603093, Нижний Новгород, ул. Родионова, д. 190</p></bio><bio xml:lang="en"><p>Sergey V. Krishtopenko — Dr. Sci. (Med.), Gastroenterologist, Nizhny Novgorod Regional Clinical Hospital named after N.A. Semashko.</p><p>603093, Nizhny Novgorod, Rodionova str., 190</p></bio><email xlink:type="simple">kr_sv@mail.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/0000-0001-5161-6436</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Алексеева</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Alekseeva</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алексеева Анастасия Алексеевна — ординатор 2-го года кафедры госпитальной терапии и общеврачебной практики им. В.Г. Вогралика.</p><p>603005, Нижний Новгород, пл. Минина и Пожарского, д. 10/1</p></bio><bio xml:lang="en"><p>Anastasia A. Alekseeva — clinical resident (2-nd year) of Hospital Therapy and General Practice named after V.G. Vogralik, Privolzhsky Research Medical University.</p><p>603005, Nizhny Novgorod, Minina i Pozharskogo sq., 10/1</p></bio><email xlink:type="simple">anastasyalekseeva1998@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ГБУЗ НО «Нижегородская областная клиническая больница им. Н.А. Семашко» Министерства здравоохранения Нижегородской области</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Nizhny Novgorod Regional Clinical Hospital named after N.A. Semashko</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГБОУ ВО «Приволжский исследовательский медицинский университет» Министерства здравоохранения Российской Федерации</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Privolzhsky Research Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>30</day><month>12</month><year>2022</year></pub-date><volume>32</volume><issue>6</issue><fpage>40</fpage><lpage>46</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Алексеева О.П., Криштопенко С.В., Алексеева А.А., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Алексеева О.П., Криштопенко С.В., Алексеева А.А.</copyright-holder><copyright-holder xml:lang="en">Alekseeva O.P., Krishtopenko S.V., Alekseeva A.A.</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.gastro-j.ru/jour/article/view/747">https://www.gastro-j.ru/jour/article/view/747</self-uri><abstract><sec><title>Цель исследования</title><p>Цель исследования: исследовать клиническую эффективность двух способов дозирования преднизолона (в мг и мг/кг) для индукции ремиссии у больных язвенным колитом (ЯК) и болезнью Крона (БК) с использованием технологии построения и оценки функции эффективности (зависимости «доза — эффект»).</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. В исследование включены 86 больных с активным заболеванием средней и тяжелой степени (61 — с ЯК, 25 — с БК) в возрасте от 18 до 65 лет. Для индукции ремиссии в качестве первого курса терапии всем пациентам назначали преднизолон в начальной дозе от 30 до 60 мг/сутки с последующим снижением. Эффект терапии оценивали на момент полной отмены преднизолона с использованием общепринятых критериев оценки клинической ремиссии. Проводили анализ двух функций эффективности: первая — при дозировании преднизолона в мг и вторая при расчете дозы в мг/кг веса пациента. Масса тела пациентов колебалась от 41 до 98 кг. Построение функции эффективности (зависимости «доза — эффект») для преднизолона проводилось по оригинальной методике, смысл которой заключается в адекватном статистическом преобразовании исходных клинических данных, получаемых в виде количественного выражения примененной совокупности доз и зарегистрированных альтернативных ответов, установленных по критериям конечной точки, в наглядный график, по которому возможно проведение аналитических оценок. Оценка среднего значения в каждой точке определялась на основе метода ядерной оценки регрессии. Достоверность различий вычислялась на основе /-критерия Стьюдента.</p></sec><sec><title>Результаты</title><p>Результаты. Построены два графика «доза — эффект» преднизолона в мг и в мг/кг массы тела. Оптимальная клинически эффективная доза (ОКЭД) при расчете в мг/кг составила 0,70 ± 0,01 (0,68 + 0,72) мг/кг с соответствующим эффектом 79,25 ± 6,26 (66,62            91,88) %. При наложении двух графиков в мг и в мг/кг веса показано, что при назначении начальной дозы 40 мг без учета массы тела пациента эффект терапии будет на 25 % ниже. Назначение дозы 60 мг в сутки без учета массы будет оптимальным для пациентов с массой тела 85-90 кг. При более низкой массе тела клинический эффект не уменьшится, однако вероятность появления побочных эффектов преднизолона следует ожидать пропорциональной уменьшению массы тела.</p></sec><sec><title>Заключение</title><p>Заключение. Проведено сравнение клинической эффективности двух способов дозирования преднизолона (в мг и в мг/кг) у больных ЯК и БК при первом индукционном курсе. Анализ зависимости «доза — эффект» позволил доказать достоверную связь массы тела пациентов с клиническим эффектом преднизолона у больных ЯК и БК. Установлена оптимальная клинически эффективная доза преднизолона у больных ЯК и БК при первом индукционном курсе, равная 0,70 мг/кг, которая может быть рекомендована к применению в клинической практике для назначения индивидуальных доз.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Aim</title><p>Aim: to investigate the clinical efficacy of two methods of oral dosing of prednisolone (in mg and mg/kg) for the induction of remission for patients with ulcerative colitis (UC) and Crohn's disease (CD) using the technology of constructing and evaluating the effectiveness function (dose-effect relationship).</p></sec><sec><title>Material and methods</title><p>Material and methods. In this study were included 86 patients aged from 18 to 65 years with moderate or severe active inflammatory bowel disease (61 — UC, 25 — CD). All patients were treated with prednisolone at an initial daily dose from 30 to 60 mg with a subsequent tapering of dose. The clinical response to treatment was evaluated at the time of complete withdrawal of prednisolone using the generally accepted criteria. Two efficiency functions were constructed, compared and analyzed: the first — at the initial dosage of prednisolone in mg and the second calculating the dose in mg/kg of patient weight. The patients' body weight ranged from 41 to 98 kg. The “dose-effect” relationship for prednisolone was constructed with statistical transformation of the baseline clinical data and a quantitative expression of the actual doses and alternative responses into a graph of the effectiveness function. The mean value at each point was estimated based on the regression kernel scoring method.</p></sec><sec><title>Results</title><p>Results. Two graphs of the “dose-effect” of prednisolone in mg and mg/kg of patient weight were constructed. The optimal clinically effective dose (OCED) when calculated in mg/kg of weight was 0.70 ± 0.01 (0.68 + 0.72) mg/kg with the corresponding effect 79.25 ± 6.26 (66.62 91.88) %. When two graphs in mg and mg / kg of weight were superimposed, it is shown that when an initial dose of 40 mg is prescribed without taking into account the patient's weight, the effect of therapy will be 25 % lower. Prescribing a dose of 60 mg per day without weight will be optimal for patients with a body weight of 85-90 kg. With a lower body weight, the clinical effect will not decrease, but the likelihood of recognized side effects of prednisolone should be expected in proportion to the decrease in body weight.</p></sec><sec><title>Conclusion</title><p>Conclusion. The clinical efficacy of two methods of prednisolone dosing (mg and mg/kg) for patients with IBD during the first induction course was compared.</p><p>Using a new technology for constructing and evaluating the effectiveness function (dose-effect relationship) allowed us to prove a reliable relationship between the body weight of patients with the clinical effect of prednisolone in patients with UC and CD. Based on the analysis of the dose-effect relationship, the optimal clinically effective dose of prednisolone for patients with UC and CD during the first induction course was established, equal to 0.70 mg/kg, which can be recommended for use in clinical practice for calculating individual doses.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>язвенный колит</kwd><kwd>болезнь Крона</kwd><kwd>преднизолон</kwd><kwd>функция эффективности</kwd><kwd>расчет дозы</kwd></kwd-group><kwd-group xml:lang="en"><kwd>ulcerative colitis</kwd><kwd>Crohn's disease</kwd><kwd>prednisolone</kwd><kwd>efficiency function</kwd><kwd>dose calculation</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Harbord M., Eliakim R., Bettenworth D., Karmiris K., Katsanos K., Kopylov U., et al. Third European Evidence-based Consensus on Diagnosis and Management of Ulcerative Colitis. 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