THE EFFECT OF AN ANTI-TUMOR NECROSIS FACTOR-? AGENT ON DISEASE ACTIVITY,BLOOD RHEOLOGICAL PROPERTIES, AND THE ARTERIAL WALL IN PSORIATIC ARTHRITIS

Vascular dysfunction and inflammation in psoriatic arthritis (PsA) share the same pathogenetic mechanism wherein the proinflammatory cytokine tumor necrosis factor- (TNF-) plays a key role. Treatment with anti-TNF- agents is effective in inhibiting inflammation in PsA; however, their effect on the wall of large arteries has not been studied. Objective. To evaluate the effect of Adalimumab (ADA) on the arterial wall and blood rheological properties in PsA. Subjects and methods. Eighteen patients with PsA [12 women and 6 men; mean age 43.1±10.2 years; disease activity scores (DAS), 4.78 (4.0; 5.45)] were subcutaneously injected ADA, 40 mg/every two weeks, for 12 weeks. The investigators assessed the vascular wall, by measuring the mean and maximum common carotid intima-media thickness (IMT) by ultrasound duplex scanning, and arterial rigidity (AR), by determining the refraction index (RI,%) and the rigidity index by digital volume photoplethysmography and Doppler study measuring the aortic pulse wave velocity (PWV) in the carotid-femoral segment (Micromedical, UK), before and after treatment. Erythrocyte aggregation (EA) parameters [Т1 (sec), Kt (c.u.); (sec-1), I2,5 (%)] were measured recording the rate of inverse light scattering and the levels of blood lipids [total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), and triglycerides (TG)], and atherogenicity coefficient (AC) by routine methods on an automated Express plus analyzer (Bayer, Germany) at baseline, 4, and 12 weeks. The median and the interquartile range [Me (Q25; Q75)] were calculated; the changes in the parameters were estimated by the Wilcoxon test (Wt) and the Friedman test (Ft) for dependent samples;

Анкилозирующий спондилит в сочетании с комбинированным аутовоспалительным поражением кожи (клиническое наблюдение и обзор литературы)

We present a clinical case of combination of axial spondyloarthritis (axSpA) and chronic recurrent skin lesions in the form of acne conglobata, hidradenitis suppurativa (HS) with fistulous tracts formation. During the diagnostic search, the following diseases were considered: HS, SAPHO syndrome (synovitis, acne, pustulosis, hyperostosis, osteitis), PASS syndrome (pyoderma gangrenosum, acne, ankylosing spondylitis, HS). The choice of therapy in this patient and the possibility of using biologic disease-modifying antirheumatic drugs for axSpa and concomitant autoinflammatory skin process are discussed.Представлено клиническое наблюдение, в котором имелось сочетание аксиального спондилоартрита (аксСпА) и хронического рецидивирующего поражения кожи в виде конглобатных акне, гнойного гидраденита (ГГ) с формированием свищевых ходов. В ходе диагностического поиска рассматривались следующие заболевания: ГГ, синдром SAPHO (синовит, акне, пустулез, гиперостоз, остеит), PASS-синдром (гангренозная пиодермия, акне, анкилозирующий спондилит, ГГ). Обсуждаются выбор терапии у данного пациента и возможности использования генно-инженерных биологических препаратов при аксСпа и сопутствующем аутовоспалительном кожном процессе

MPTP-Treated Zebrafish Recapitulate ‘Late-Stage’ Parkinson’s-like Cognitive Decline

The zebrafish is a promising model species in biomedical research, including neurotoxicology and neuroactive drug screening. 1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) evokes degeneration of dopaminergic neurons and is commonly used to model Parkinson’s disease (PD) in laboratory animals, including zebrafish. However, cognitive phenotypes in MPTP-evoked experimental PD models remain poorly understood. Here, we established an LD50 (292 mg/kg) for intraperitoneal MPTP administration in adult zebrafish, and report impaired spatial working memory (poorer spontaneous alternation in the Y-maze) in a PD model utilizing fish treated with 200 µg of this agent. In addition to conventional behavioral analyses, we also employed artificial intelligence (AI)-based approaches to independently and without bias characterize MPTP effects on zebrafish behavior during the Y-maze test. These analyses yielded a distinct cluster for 200-µg MPTP (vs. other) groups, suggesting that high-dose MPTP produced distinct, computationally detectable patterns of zebrafish swimming. Collectively, these findings support MPTP treatment in adult zebrafish as a late-stage experimental PD model with overt cognitive phenotypes. © 2022 by the authors. Licensee MDPI, Basel, Switzerland.Funding: The experiments were implemented using the equipment and unique scientific installation “Biological collection–Genetic biomodels of neuropsychiatric disorders” (No. 493387) of the Federal State Budgetary Scientific Institution “Scientific Research Institute of Neurosciences and Medicine” theme no. AAAA-A21-121011990039-2 (2021–2025). The study partially used the facilities and equipment of the Resource Fund of Applied Genetics MIPT (support grant 075-15-2021-684)

Разделение пациентов с хронической сердечной недостаточностью по группам в зависимости от этиологии заболевания

Aim. To develop classification criteria for stratifying congestive heart failure (CHF) patients based on the underlying disease.Methods. 61 patients with CHF were recruited in a study. All patients were assigned to three groups according to the underlying disease: patients with coronary artery disease (CAD) (n = 29), patients with arterial hypertension (AH) (n = 19), and those present with dilated cardiomyopathy (DCM) (n = 13). Patients underwent routine clinical examination. Biochemical and inflammatory markers (IL-6, its soluble receptor sIL-6R, and sgp130) were measured in all patients. The Mann-Whitney U test, the Kruskal-Wallis H test, the Pearson χ2 test, and Fischer exact test were used to analyze the selected variables. Discriminant analysis was used for generating prediction models. The quality of the models was evaluated with the ROC analysis.Results. Statistically significant variables identified by the pairwise comparison of patients with CAD and AH, CAD and DCM, AH and DCM were included in the discriminant analysis along with clinically valid parameters. Clinical prediction models of stratifying patients to different etiological groups were based on these parameters. The optimal cut-off values were determined for each model. The area under the ROC curve (AUC) was used to evaluate the quality of the model. The AUC value for CAD and AH groups was 1, for AH and DCM - 72±0.024, and for CAD and DCM - 0.907±0.053.Conclusion. Diagnostic prediction models were developed using the discriminant analysis. These models allow stratifying CHF patients according to the underlying disease (CAD, AH, and DCM). The ROC curves have confirmed the good classifying quality of the models.Цель. Разработка решающих правил стратификации пациентов с хронической сердечной недостаточностью (ХСН) на основании этиологии заболевания.Материалы и методы. В исследование включен 61 пациент с ХСН. В зависимости от состояния, являющегося причиной ХСН, пациенты разделены на три группы: ишемическая болезнь сердца (ИБС) (n = 29), артериальная гипертензия (АГ) (n = 19) и дилатационная кардиомиопатия (ДКМП) (n = 13). Оценку состояния пациентов проводили на основании общепринятых клинических и биохимических показателей, а также параметров, отражающих течение воспалительного процесса: интерлейкин 6 (ИЛ-6), растворимый рецептор ИЛ-6, растворимый гликопротеин 130. Для выявления статистически значимо различающихся переменных в группах использовали U-критерий Манна - Уитни, критерий Краскела - Уоллиса, χ2 Пирсона и точный критерий Фишера. Для построения решающих правил применяли метод дискриминантного анализа, для оценки качества моделей - ROC-анализ.Результаты. В дискриминантный анализ включены статистически значимо различающиеся переменные, выявленные при попарном сравнении групп ИБС и АГ, ИБС и ДКМП, АГ и ДКМП, а также клинически значимые параметры. На основании данных показателей созданы решающие правила отнесения пациентов с ХСН к различным этиологическим группам. При оценке качества полученного решающего правила найдены оптимальные значения точек отсечения. Также для оценки качества модели использовали площадь под ROC-кривой (AUC). Для групп ИБС и АГ показатель AUC составил 1, для АГ и ДКМП -0,972±0,024, для ИБС и ДКМП - 0,907±0,053.Заключение. С помощью дискриминантного анализа разработаны решающие правила, позволяющие стратифицировать пациентов с ХСН по основным причинам возникновения заболевания (ИБС, АГ и ДКМП). ROC-анализ продемонстрировал высокое качество полученных моделей

Раннее назначение генно-инженерных биологических препаратов при иммуновоспалительных заболеваниях: возможности и перспективы. Позиция экспертов

Psoriasis (Ps), psoriatic arthritis (PsA), and inflammatory bowel diseases (IBDs) are characterized by a progressive course and frequently lead to disability; therefore, their early diagnosis with the assessment of a clinical phenotype and unfavorable prognostic factors and the timely initiation of therapy are important tasks. The paper provides the experts agreed opinion on the definition of the early stage of Ps, PsA, and IBDs, the goals of therapy and main unfavorable prognostic factors for the course of these diseases and gives the rationale for the early use of biological agents in patients with immune-mediated inflammatory diseases.Псориаз (Пс), псориатический артрит (ПсА) и воспалительные заболевания кишечника (ВЗК) характеризуются прогрессирующим течением и нередко приводят к инвалидизации, поэтому важными задачами являются их ранняя диагностика с оценкой клинического фенотипа и факторов неблагоприятного прогноза и своевременное начало терапии. В статье приводятся согласованная позиция экспертов по определению ранней стадии Пс, ПсА и ВЗК, цели терапии и основные факторы неблагоприятного прогноза течения этих заболеваний, представлено обоснование раннего применения генно-инженерных биологических препаратов у пациентов с иммуновоспалительной патологией

Результаты неинтервенционного наблюдательного многоцентрового исследования тактики ведения пациентов с аксиальным псориатическим артритом в условиях реальной клинической практики (NiSaXPA)

Psoriatic arthritis (PsA) is a chronic immunoinflammatory disease of the joints, spine and entheses from the group of spondyloarthritis, which is usually observed in patients with psoriasis. In recent years, the axial form of PsA (axPsA) has been actively researched. However, there is insufficient data on approaches to the diagnosis and treatment of patients with axPsA in real-life clinical practice. This article presents the results of an interim analysis of data from a non-interventional multicenter observational study on the treatment of patients with axPsA in real-life clinical practice (NiSaXPA) in Russian centers.Objective: to identify patients with axPsA, their characteristics and describe treatment tactics in real-life clinical practice.Material and methods. Patients with PsA who met the inclusion criteria were prospectively followed up during routine visits to a rheumatologist. Participants' axial radiographs were uploaded to a database in order for it to be confirmed the presence or absence of axPsA by two independent experts, a rheumatologist and a radiologist. Patients with a confirmed axPsA diagnosis participated in a further data collection phase (Visit 2, week 24).Results and discussion. Six hundred patients were enrolled into the study. At the time of analysis, 386 (64.3%) of them (209 men and 177 women) were screened for axPsA. The diagnosis of axPsA was confirmed in 241 (62.4%) cases; these patients formed the Per Protocol (PP) population. The mean age of patients with axPsA in the PP population was 46.30±12.6 years and the body mass index (BMI) was 27.4±5.2 kg/m2 . In 14.9% of patients, the duration of psoriasis was less than 1–5 years, in 21.5% – 5–10 years and in 63.6% – more than 10 years. The duration of PsA symptoms was less than 1–5 years in 31.2 % of patients, 5–10 years in 31.6 % and more than 10 years in 37.2 %. Low disease activity (BASDAI ˂ 4) was achieved in 33.3 % of patients with axPsA at visit 1 and in 64.3 % at visit 2; the BASDAI index declined on average from 4.67±1.95 to 3.31±1.89 points.In real-life clinical practice, patients were most frequently prescribed non-steroidal anti-inflammatory drugs (NSAIDs) – 88.7% and 71.7% (visits 1 and 2, respectively), and synthetic disease-modifying antirheumatic drugs (sDMARDs) –79.1% and 70.7%, respectively; therapy with biologic disease-modifying antirheumatic drugs (bDMARDs) was initiated in 40.2% and 60.6% of patients, respectively.Conclusion. The results of the interim analysis of this observational study showed that in 87.2% of patients who met the CASPAR criteria for PsA there was a suspicion of axial manifestations of PsA on the primary care level. However, only 62.4% of them had a confirmed diagnosis of axPsA on centralized expert assessment, which may indicate a possible overdiagnosis of axial lesions in real-life practice and emphasizes the importance of collaboration between a rheumatologist and a radiologist when analyzing the results of imaging studies. 33.3% of patients with axPsA had low disease activity according to BASDAI at baseline and 64.3% after 24 weeks, meaning that the disease was only adequately controlled in one third of cases despite therapy; the number of these patients doubled after a change in therapy. In real-world clinical practice, patients with axPsA are most commonly prescribed drugs from the NSAID and sDMARD groups; the frequency of use of biologic drugs varied between 40.2 and 60.6% by the end of the observation period.Псориатический артрит (ПсА) – хроническое иммуновоспалительное заболевание суставов, позвоночника и энтезисов из группы спондилоартритов, которое обычно наблюдается у больных псориазом. В последние годы активно изучается аксиальная форма ПсА (аксПсА). Вместе с тем данных о подходах к диагностике и ведению пациентов с аксПсА в реальной клинической практике недостаточно. В настоящей публикации представлены результаты промежуточного анализа данных неинтервенционного наблюдательного многоцентрового исследования тактики ведения пациентов с аксПсА в условиях реальной клинической практики (NiSaXPA) в российских центрах.Цель исследования – выявление пациентов с аксПсА, их характеристика и описание тактики ведения в условиях реальной клинической практики.Материал и методы. Во время плановых визитов к ревматологу проводилось проспективное наблюдение пациентов с ПсА, соответствовавших критериям включения. Аксиальные рентгенограммы участников были загружены в базу данных для подтверждения наличия или отсутствия аксПсА двумя независимыми экспертами – ревматологом и рентгенологом. Пациенты с подтвержденным диагнозом аксПсА участвовали в дальнейшей фазе сбора данных (визит 2, неделя 24).Результаты и обсуждение. В исследование включено 600 пациентов. На момент проведения анализа с целью выявления аксПсА обследовано 386 (64,3%) из них (209 мужчин и 177 женщин). Диагноз аксПсА подтвержден в 241 (62,4%) случае; эти больные составили популяцию по протоколу (PP, Per Protocol). У 145 (37,6%) пациентов аксПсА не выявлен. Возраст пациентов с аксПсА в популяции РР составил в среднем 46,30±12,6 года, индекс массы тела (ИМТ) – 27,4±5,2 кг/м2 . У 14,9% пациентов длительность псориаза была менее 1–5 лет, у 21,5% – 5–10 лет и у 63,6% – более 10 лет. Давность симптомов ПсА у 31,2% пациентов составляла менее 1–5 лет, у 31,6% – 5–10 лет и у 37,2% – более 10 лет. Низкой активности заболевания (BASDAI ˂ 4) к визиту 1 достигли 33,3% больных аксПсА, к визиту 2 – 64,3%; было отмечено снижение индекса BASDAI в среднем с 4,67±1,95 до 3,31±1,89 балла. В реальной клинической практике пациентам наиболее часто назначали нестероидные противовоспалительные препараты (НПВП) – 88,7% и 71,7% (визиты 1 и 2 соответственно) и синтетические базисные противовоспалительные препараты (сБПВП) – 79,1% и 70,7% соответственно; терапия генно-инженерными биологическими препаратами (ГИБП) была инициирована 40,2% и 60,6% больных соответственно.Заключение. Результаты промежуточной оценки данного наблюдательного исследования показали, что у 87,2% пациентов, отвечавших критериям CASPAR для ПсА, исходно при обследовании по месту жительства были заподозрены аксиальные проявления ПсА. Однако при центральной экспертной оценке диагноз аксПсА был верифицирован только у 62,4% из них, что может свидетельствовать о возможной гипердиагностике аксиального поражения в реальной практике и подчеркивает важность кооперации ревматолога и рентгенолога при анализе результатов визуализационных методов обследования. 33,3% пациентов с аксПсА имели низкую активность заболевания по BASDAI исходно и 64,3% – через 24 нед. Таким образом, несмотря на проводимую терапию, адекватно контролировать заболевание удавалось только в трети случаев, после смены терапии число таких пациентов увеличилось вдвое. В реальной клинической практике пациентам с аксПсА наиболее часто назначают препараты из группы НПВП и сБПВП, частота использования ГИБП варьировалась от 40,2 до 60,6% к концу наблюдения

Use of a multidimensional RAPID3 questionnaire to assess the achievement of remission and minimal disease activity in patients with early psoriatic arthritis treated according to Treat-to-target strategy

The current Treat-to-target (T2T) strategy in the management of patients with psoriatic arthritis (PsA) is based on strict control over the dynamics of a patient's status and timely correction of therapy according to the presence or absence of remission or minimal disease activity (MDA) within 6 months after treatment initiation. The multidimensional RAPID3 questionnaire based on the patient's own opinion of his/her health status, has demonstrated its high effectiveness in assessing remission in patients with rheumatoid arthritis (RA). The possibilities of using the RAPID3 questionnaire in patients with early PsA (ePsA) with T2T strategy have not yet been studied.Objective: to investigate whether the multi-dimensional RAPID3 questionnaire may be used to assess the achievement of remission and MDA in ePsA patients with a T2T (Treat-to-target) strategySubjects and methods. The investigation enrolled 61 patients (29 men and 32 women) with ePsA meeting the 2006 CASPAR criteria; the mean age of the patients was 37±10.6 years; the duration of PsA and psoriasis was 11.3±10.2 and 75.4±80.9 months, respectively. The patients were followed up for 12 months during the open-label REMARCA study performed by the T2T principles. At baseline, all the patients were given methotrexate (MTX; Methoject) subcutaneously at a dose of 10 mg/week, with escalation by 5 mg every 2 weeks up to 20–25 mg/week. If there was no low disease activity (LDA), DAS28/DAS remission, or MDA after 3 months, the patients received combined therapy with MTX 20–25 mg/week and adalimumab (ADA) or ustekinumab (UST) at standard doses. All the patients underwent standard rheumatologic examination before therapy and every 3 months. The investigators calculated tender joint count (TJC) among 78 joints; swollen joint count (SJC) among 76 joints, the Ritchie articular index, and the number of entheses by the Leeds Enthesitis index (LEI). Joint pain measurement, patient (PGA) and physician (PhGA) global assessment on visual analog scale (VAS) was performed, the serum level of C-reactive protein (CRP) and erythrocyte sedimentation rate (ESR) were evaluated. DAS and DAS28, HAQ and RAPID3 functional index were estimated. The number of patients achieving LDA, DAS/DAS28 remission, and MDA were determined. Results and discussion. At 1 year of therapy, 36 (59%) out of the 61 patients and 25 (41%) out of the 61 patients were treated with MTX and this drug in combination with ADA or UST, respectively. After 1 year of treatment, the whole group displayed a significant improvement of all PsA activity parameters as compared with baseline values: DAS, 3.93 [3.20; 4.58] / 1.36 [0.82; 2.25], SJC, 7 [5; 11] / 1 [0; 3], TJC, 8 [6; 1] / 1 [0; 3], PhGA, 56 [48; 69] / 10 [5; 20] and VAS pain, 54 [48; 68] / 11 [1; 20], PGA, 55 [49; 68] / 14 [7; 24], HAQ, 0.75 [0.50; 1] / 0 [0; 0.63], respectively. There was a significant correlation of RAPID3 with PsA activity and CRP. MDA was seen in 43 (70.5%) out of the 61 patients. Among the patients who had achieved MDA, the RAPID3 values corresponded to remission, but were significantly higher in the patients who had not attained MDA: 2.5 [1.3; 5.3] and 8.1 [6.0; 15.1], respectively. RAPID3 demonstrated high sensitivity in assessing the achievement of remission, LDA, and MDA in patients with ePsA.Conclusion. RAPID3 based on a patient's personal opinion of his/her disease is a simple and reliable tool to assess the disease activity in patients with ePsA and to monitor the efficiency of therapy with a T2T strategy and may be really useful in practice

TREAT-TO-TARGET STRATEGY FOR EARLY PSORIATIC ARTHRITIS (PRELIMINARY RESULTS OF THE REMARCА STUDY)

The aim of a treat-to-target (T2T) strategy is to achieve a remission or minimal disease activity (MDA).Objective: to investigate the efficiency of the T2T strategy for early psoriatic arthritis (ePsA).Subjects and methods. Twenty-three patients (8 men and 15 women) with ePsA, who met the CASPAR criteria (mean age was 39.1±10.6 years; the median duration of ePsA was 7 [4; 24] months and that of psoriasis was 36 [12; 84] months), were examined. At the patient inclusion and then every 3 months, the investigators assessed the activity of ePsA by DAS and DAS28 and that of psoriasis by BSA (%) and PASI and determined erythrocyte sedimentation rate (ESR) (mm/h), C-reactive protein (CRP) level (mg/l), HAQ. All the patients received monotherapy (MoT) with subcutaneous methotrexate (MTX) (methoject) in a dose of 10 mg/week that was increased by 5 mg every 2 weeks until 20–25 mg/week was reached. The number of patients who had achieved remission (DAS <1.6 or DAS28 ≤ 2.4), low disease activity (LDA) (1.6 ≤ DAS <2.4 or 2.4 < DAS28 ≤ 3.6), MDA, and 20%, 50%, and 70% improvements according to the American College of Rheumatology (ACR) criteria. When LDA/MDA or remission was absent at 3 months of treatment, combined therapy (CoT) with MTX and adalimumab 40 mg once two weeks was used.Results. The baseline median DAS was 3.97 [3.07; 4.67]; DAS28 – 4.33 [3.68; 4.73], PASI, 6 [3.1; 9.7]; BSA, 1 [0.5; 3.65]; CRP, 15 [8.6; 25.1] mg/l; ESR, 15 [8.6; 25.1] mm/h; and HAQ, 0.75 [0.63; 1.25]. After 3 months of MoT, remission defined by DAS and DAS28 was in 13/22.7% of the patients; LDA in 21.7/27.3%, and MDA in 26.1%, respectively. ACR 20, 50, and 70 responses were obtained in 65.2, 26.15, and 8.7% of the patients, respectively. There were significant decreases in the level of CRP (to 5.7 [2.3; 10.7] mg/l), HAQ (0.38 [0; 0.87]), BSA (1 [0.3; 2]), and PASI (7.1 [0; 32.5]). ESR remained substantially unchanged (18 [10; 26] ml/h). Four patients with persistent high disease activity were given CoT; 19 patients continued MTX MoT. After 6 months, DAS/DAS28 remission was in 34.8/39.1% of the patients; DAS/DAS28 LDA in 26.1/39.1%; and MDA in 47.8%, respectively. ACR 20, 50, and 70%improvements were seen in 73.9, 60.9, and 47.8% of the patients, respectively. There were significant reductions in the level of CRP (4.9 [0.9; 8.3]), HAQ (0.13 [0; 0.63]), and BSA (0.35 [0; 1.6]). After MTX MoT, DAS/DAS28 remission was observed in 36.8/36.8% of the 19 patients; LDA in 15.8/36.8%; and MDA in 47.4%. ACR 20, 50, and 70 responses were seen in 68.4, 52.6, and 42.1% of the patients receiving MTX MoT and in 100, 100, 75% of the patients (n = 4) having CoT, respectively; MDA was noted in 50% of the cases.Conclusion. The use of the T2T strategy during a 6-month period could provide ACR 70 response and MDA in half of the patients and remission in one third of the patients with ePsA

ACHIEVEMENT OF MINIMAL DISEASE ACTIVITY AND PROGRESSION OF RADIOGRAPHIC CHANGES IN EARLY PSORIATIC ARTHRITIS ONE YEAR AFTER INITIATION OF TREATMENT IN «TREAT TO TARGET» STRATEGY (PRELIMINARY RESULTS OF THE REMARKA STUDY)

Achievement of minimal disease activity (MDA) is the main goal of the Treat-to-target (T2T) strategy in early psoriatic arthritis (ePsA). Radiographic progression in patients with ePsA treated according to the T2T strategy has been studied insufficiently. Objective: To study the frequency of achievement of MDA and X-ray progression in patients with early PsA treated according to the T2T strategy 1 year after initiation of treatment. Subjects and methods. Forty patients (22 women) with active ePsA, who met the CASPAR criteria (mean age was 38,4±11,1 years, the median duration of PsA – 7,0 [4,0; 18,0] months, the duration of psoriasis – 38,0 [9,5; 114,0] months, DAS – 3,8 [3,2; 4,7]), were included in the REMARKA study. At the start of the study all patients received subcutaneous methotrexate (MTX) in a dose of 20–25 mg/week. If high or moderate disease activity persisted after 3–6 months, patients (n=21) were transferred to combined therapy with MTX and a biological agent (BA). The remaining 19 patients continued MTX monotherapy. Initially and one year later, the MDA criteria were evaluated (tender joint count ≤1, swollen joint count ≤1, PASI ≤1 or BSA ≤3, pain on visual analog scale (VAS) ≤15 mm, patient global assessment of activity on VAS ≤20 mm, HAQ ≤0,5, tender enthesis count ≤1) and digital radiography of hands and feet was performed. Radiographic progression was assessed by an independent radiologist using the modified method of Sharp/van der Heijde: total score (TS) = erosion score (ES) + joint space narrowing score (JSNS). Results and discussion. At the time of enrollment, 23 patients (57%) with ePsA had erosions. One year later the number of patients with erosions increased to 26 (65%). The TS has significantly increased, although its median has not changed (before treatment – 91.5 [72; 108,5], after one year – 91.5 [73,5; 111,5], p<0,01). In this case, the median of the ES increased from 2 [0; 4,5] to 2,5 [0; 5], (p><0,05), and the median of the JSNS – from 85 [69; 105] to 87 [71,5; 107], (p><0,01). After one year, there was no significant difference between patients receiving MTX monotherapy and MTX + BA, according to TS (p>0,05). In 29 out of 40 patients (72,5%), no radiographic progression was detected neither in the ES nor in the JSN; 13 out of 29 (45%) received MTX and 16 (55%) – MTX + BA. In 11 out of 40 (27,5%) patients, negative radiographic changes according to ES (n=10) and JSNS (n=4) were detected, with three patients having progression in both scores. In this group, 6 patients (54,5%) received MTX monotherapy and 5 (45,5%) – MTX + BA. After 1 year, 25 (62,5%) patients achieved MDA. Among patients who did not achieve MDA (n=15) after 1 year, the ES was significantly higher at the beginning of the study compared to those who achieved MDA: median 3 [2; 9] and 0 [0; 3], respectively (p<0,05). In the group of patients who did not achieve MDA in a year, radiographic progression was more significant. Conclusion. In russian cohort more than half of patients with ePsA had erosions. After one year of follow up 72,5% of patients with ePsA treated according to the T2T strategy showed no radiographic progression, and a quarter of patients (27,5%) had negative radiographic changes, regardless of the type of the therapy. Patients with ePsA, who achieved MDA, had less prominent radiographic progression in a year. Keywords: early psoriatic arthritis; treat to target strategy; radiographic progression; minimal disease activity>< 0,05). In the group of patients who did not achieve MDA in a year, radiographic progression was more significant. Conclusion. In russian cohort more than half of patients with ePsA had erosions. After one year of follow up 72,5% of patients with ePsA treated according to the T2T strategy showed no radiographic progression, and a quarter of patients (27,5%) had negative radiographic changes, regardless of the type of the therapy. Patients with ePsA, who achieved MDA, had less prominent radiographic progression in a year