No abstract

No abstract

ABSTRACT

Psoriatic disease is a condition characterised by the development of a progressive chronic inflammatory process caused by various immunological pathways, among which the IL-23/Th17 axis plays a key role. Therefore, the efficacy of IL-23 p19 inhibitors is currently being actively studied. To date, quite a large number of therapeutic options among genetically engineered biological drugs (GEBDs) exist for the treatment of psoriasis, but in real clinical practice patients may lose efficacy or suffer from adverse events, resulting in the need to switch to other classes of GEBDs. Guselkumab is a fully human IgG1λ monoclonal antibody that binds selectively to the p19 subunit of interleukin 23 (IL-23) with high specificity and affinity. The implementation of the drug into clinical practice has improved the efficacy, safety and survival rate of genetically engineered biological therapy for psoriasis. Finding optimal approaches to the treatment of psoriatic disease by analysing data from clinical trials and actual practice is the real challenge for practicing clinicians. However, a current problem is the lack of sufficient information on the use of guselkumab in real clinical practice when it is initiated subsequent to administration of other classes of GEBDs – anti-TNF-α, anti-IL-17 and/or anti-IL-12/23. This article provides a review of the existing literature, as well as our own clinical observations of non-bionaive patients with successful therapy switching to the IL-23 inhibitor guselkumab. Understanding the basic aspects of GEBD therapy for psoriasis will help to achieve successful control of the disease and improve the quality of life of patients in general.

Psoriasis is a chronic immune-mediated inflammatory disease in which the pathological process quite often involves the nail apparatus. Psoriatic onychodystrophy is considered a serious psychological and social problem, as nail lesions are not only a cosmetic defect, they can also complicate daily activities, including employment, ability to work and generally impair the quality of life of patients. In addition, numerous studies and clinical practice show that nail lesions in psoriasis are also associated with a more severe course of the skin process, and are rather torpid to therapy. Moreover, psoriatic onychodystrophy is considered as a form of enthesitis, which is in fact an important predictor of the development of psoriatic arthritis. Various topical, systemic and physiotherapeutic options have been recommended in the therapy of psoriasis with nail plate damage, but the effectiveness of these therapeutic methods is in most cases insufficient and the search for highly effective treatment is of great clinical importance at present. Taking into consideration the critical importance of interleukin (IL)-17 in the pathogenesis of psoriasis, its inhibitors allow to achieve a stable remission of cutaneous and joint processes, thus, it is promising in the therapy of psoriatic onychodystrophy. The article presents the literature data on epidemiology, clinical picture of nail changes in psoriasis, the review of effective pathogenetic methods of psoriatic onychodystrophy therapy and personal clinical observations of patients with severe psoriasis with nail plate damage treated with Russian interleukin 17A inhibitor – Netakimab. These observations allow to draw a conclusion about high efficacy of netakimab in the therapy of patients with psoriasis including the presence of such hardtop-treat localizations as nail lesions.