[Russian Cross-disciplinary Consensus on the diagnosis and treatment of spondyloarthritis associated with inflammatory bowel diseases]

The Russian Cross-disciplinary Consensus on the diagnositic and treatment of spondyloarthritis (SpA) in inflammatory bowel diseases (IBD) was prepared on the initiative of the Loginov Moscow Clinical Scientific Center, using the Delphic system. Its purpose was to consolidate the opinions of experts on the most actual issues of diagnosis and treatment of concomitant immuno-inflammatory diseases (SpA and IBD). An interdisciplinary approach is provided by the participation of leading gastroenterologists and rheumatologists. The working group analyzed domestic and foreign publications on the problem of curation of patients with SpA and IBD. There have been 17 statements and 2 treatment algorithms formulated. Statements 1-3 reflect the fundamental principles of management of patients with SpA and IBD. The principles of early diagnosis of SpA and IBD, including the diagnosis of complications of therapy, are described below. Eleven statements are devoted to current methods of treatment, on the basis of which 2 treatment algorithms have been developed. The statements of the Consensus were submitted to the Expert Council for consideration, edits were made, after which an online vote took place. This paper presents current recommendations for the management, diagnosis and treatment of patients with SpA and IBD.

Netakimab — new IL-17а inhibitor: 12-week results of phase III clinical study BCD-085-7/PLANETA in patients with moderate-tosevere plaque psoriasis

Netakimab, the original monoclonal antibody against IL-17A, is an innovative drug for the treatment of moderate-to-severe plaque psoriasis in patients who have indications for systemic therapy or phototherapy. Netakimab was approved in Russian Federation, registration certificate number ЛП-005439 from 04.04.2019. This article outlines the first 12-week results of a phase III clinical trial in patients with psoriasis.

Materials and methods. The BCD-085-7 study (PLANETA) is a comparative, randomized, double-blind, placebo-controlled phase 3 clinical study of the efficacy and safety of netakimab in patients with moderate-to-severe plaque psoriasis. This review presents the results of the first 12 weeks. The study is ongoing at the moment, the total duration of treatment for each patient is 3 years (154 weeks). Patients were randomized in a ratio of 2:2:1 into one of three arms: group 1 received netakimab subcutaneously at a dose of 120 mg once a week for the first three weeks (induction) and then once every 2 weeks up to week 10, group 2 received netakimab subcutaneously at a dose of 120 mg once a week for the first three weeks (induction) and then once every 4 weeks up to week 10, group 3 received a placebo subcutaneously on day 1 at weeks 0, 1, 2, 4, 6, 8 10. In order to maintain a double-blind design, placebo was administered to patients in group 2 at weeks 4 and 8.

Results. Both netakimab groups showed a significant superiority over placebo (p < 0.001) and the absence of statistically significant differences between the two regimens of therapy (p > 0.05) across all endpoints. PASI 75 at week 12 was reached by 77.65 % of patients using netakimab once every 2 weeks and 83.33 % of patients using netakimab once every 4 weeks (ITT population). The rate of clear and almost clear skin (sPGA 0–1) was reached by 81.18 and 79.76 % of patients using netakimab once every 2 weeks and once every 4 weeks, respectively. The safety assessment showed no statistically significant differences between the groups, the incidence rate of adverse events in netakimab arms was not higher than in the placebo arm. There were no cases of early withdrawal due to adverse events and cases of grade 4 toxicity according to CTCAE 4.03. During the 12 weeks of the study, one serious adverse event was registered in group 2 (pneumonia grade 3), which was recovered without any consequences. The immunogenicity assessment showed binding antibodies formation at week 12 in one patient who received BCD-085 every 2 weeks. Neutralizing antibodies were not detected. Conclusion. Netakimab showed high efficacy in the treatment of psoriasis, more than 80 % of patients achieved PASI 75 and sPGA 0–1 (clear and almost clear skin) by the week 12 of treatment. The drug showed a favorable safety profile and low immunogenicity. Based on the study results the regimen once a week during the first 3 weeks (induction), then once every 4 weeks was chosen for medical use in patients with psoriasis.

Psoriatic arthritis: pathogenetic features and innovative therapies

The paper considers the modern concepts of the etiology and pathogenesis of psoriatic arthritis (PsA). The latter is currently indicated as a T-cell-mediated disease that is based on the activation of cellular immunity, followed by the hyperproduction and imbalance of key pro- and anti-inflammatory cytokines, such as tumor necrosis factor-α (TNF- α), interleukin-1β (IL-1β), IL-6, IL-12/23, and IL-17. The paper presents the basic principles of diagnosis and clinical manifestations of the disease and notes the importance of screening questionnaires, the use of which allows specialists to diagnose PsA early, by actively identifying articular complaints, the characteristic clinical and radiological signs of damage to the joint, spine, and entheses. It is pointed out that the key target of pharmacotherapy for PsA is to achieve remission or minimal activity of the main clinical manifestations of the disease, to slow down or prevent its radiographic progression, to increase the length and quality of life in patients, and to reduce the risk of comorbidities. The authors characterize the major groups of used drugs: nonsteroidal anti-inflammatory drugs, conventional and targeted synthetic disease-modifying antirheumatic drugs, and biological drugs (inhibitors of TNF-α, IL-12/23, and IL-17). The key Treat-to-target principles of patient management are considered; it is noted that strict control over disease activity and treatment results provides suppression of all major clinical manifestations of PsA. The paper also shows the basic principles of the creation and further development of the All-Russian Registry of PsA patients, which makes it possible to optimize management decision-making on the provision of high-tech medical care and drugs for this cohort of patients.