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Background: Many national guidelines at the European level recommend first-line therapy based on the anti-TNF-alpha adalimumab for treatment of psoriasis and psoriatic arthritis, mainly for economic reasons. Consequently, patients being treated with newer IL-17 and IL-23 inhibitors underwent previous unsuccessful first-line adalimumab-based therapy., Objectives: Evaluate the efficacy and safety of IL-17 and IL-23 inhibitors after treatment with adalimumab compared to adalimumab-naive psoriatic patients., Methods: We retrospectively analysed 1053 psoriatic patients treated with anti-IL17 and anti-IL23 agents, which included 68 and 24 adalimumab-experienced and 399 and 260 bio-naive patients. Efficacy was assessed with mean PASI, PASI90, PASI100, and <3., Results: Concerning the achieving of PASI100, PASI90 and PASI < 3 in patients treated with anti-IL17 agents, no significant differences were observed between adalimumab-experienced and bio-naive patients. In patients treated with an anti-IL-23 agent, a faster response was observed in bio-naive patients, with PASI < 3 significantly higher than ADA-experienced patients at 16 weeks (77% vs. 58% p = 0.048). In a sub-analysis that evaluated the performance of anti-IL17 and anti-IL23 agents in adalimumab-experienced patients with a history of secondary failure, no significant differences were found. In multivariate analysis of PASI100, only anti-IL-17 therapy appeared to have a negative impact at 52 weeks (OR: 0.54 p = 0.04) independently of previous treatment. For PASI90, type of treatment and bio-naïve status did not seem to have an impact at any time point., Conclusions: Anti-IL 23 and anti-IL 17 agents are not significantly different in terms of efficacy in bio-naive patients or as second-line therapy after failure with a biosimilar or originator adalimumab., (© 2023 The Authors. Journal of the European Academy of Dermatology and Venereology published by John Wiley & Sons Ltd on behalf of European Academy of Dermatology and Venereology.)

Background: Psoriatic arthritis (PsA) is an inflammatory condition which can affect up to 41% of psoriatic patients [1]. In 40-60% of patients, PsA can determine cartilage destruction and joint deformities, hereby heavily impacting physical function and quality of life, even increasing the risk of death compared to the general population [1]. PsA manifestations usually develop after psoriasis onset; therefore, dermatologists play a crucial role in the detection of early signs of arthritis. In our study, we aimed to identify simply detectable clinical and ecographic signs of early PsA and to assess their reliability., Methods: We assessed the opinion of a group of expert dermatologists, who were asked to express their opinion on the level of association between the selected anamnestic, clinical or instrumental signs and the onset of psoriatic arthritis by giving a score to each item., Results: Psoriatic onycopathy, signs of dactylitis and ultrasonographic alterations of selected joints were, respectively, the dermatologic, rheumatologic and imaging signs which had the strongest significance in the opinion of the experts., Conclusions: These signs should be carefully looked for during dermatological examinations in order to detect early PsA.

Risankizumab has been recently approved for moderate-to-severe plaque psoriasis; however, real-life studies are scarce. Analysis of possible predictor factors of treatment response are limited to body mass index (BMI) and previous biologic experience. Our objectives were to evaluate the effectiveness and safety of Risankizumab and to investigate on possible predictor factors response. We retrospectively analyzed 166 patients from two centers in Italy who undergone Risankizumab for psoriasis. The proportion of patients achieving a 100%, 90%, 75% of improvement in Psoriasis Area Severity Index (PASI) and PASI <3 were collected at weeks 16, 28, 40, and 52. Study population was analyzed in subgroups to investigate possible predictors of response to Risankizumab since week 40. At the time of analysis 165, 103, 30, and 11 patients had completed 16, 28, 40, and 52 weeks of treatment, respectively. The mean PASI score decreased from 12.5 ± 5.1 at baseline to 1.9 ± 2.4 at week 16. Similar reductions were observed when considering PASI <3, PASI 75, PASI 90, and PASI 100. Previous biologics failure, different smoking habits, obesity, and joint involvement resulted in a lower response to risankizumab. In particular, significant differences in mean PASI at any time-points was observed between psoriatic arthritis (PSA) and non-PSA patients: 2.7 versus 1.7 (p = 0.036), 1.9 versus 0.4 (p = 0.006), and 4.1 versus 0.5 (p = 0.016) at 16, 28, and 40 weeks, respectively. No difference in response to risankizumab occurred in the case of involvement of difficult-to-treat areas. In this population, Risankizumab was effective and safe. Smoking habits, joint involvement, obese status, and previous biologic experience may negatively affect treatment response, while difficult body sites involvement have minor impact., (© 2022 The Authors. Dermatologic Therapy published by Wiley Periodicals LLC.)

The monoclonal anti-IL6 receptor antibody called Tocilizumab is widely used by rheumatologists for joint diseases. Its application in dermatology has mainly concerned scleroderma and Systemic Sclerosis in the last years. The most varied skin diseases treated with tocilizumab, such as psoriasis, psoriatic arthritis, Behcet's Syndrome, Lupus, and the already mentioned scleroderma up to multi-organ syndromes with skin involvement will be discussed. At the same time, there have been several side reactions to the drug involving the skin forcing careful skin monitoring during treatment. Despite the evidence currently available in the appropriate literature, there is no formal recommendation for any of these diseases to use Tocilizumab for therapeutic purposes. The aim of this review was to collect all the main evidence on the use and involvement of the drug in dermatological practice in order to stimulate further research or hypothesize on possible therapeutic options.

Background: Psoriatic arthritis (PsA) is a chronic inflammatory disease associated with psoriasis (PsO). Early diagnosis and prompt therapeutic intervention are crucial for limiting PsA progression and prevention of disability. Dermatologists are in a privileged position to detect early PsA. The management of patients with PsA in the dermatology setting is widely variable., Objective: To provide practical recommendations for the management of patients with PsA in the dermatology setting including early diagnosis and treatment., Methods: A consensus document was written by an expert panel composed by dermatologists (n = 12) and rheumatologists (n = 6). Eleven highly relevant questions were selected and elaborated with answers/statements based on a narrative literature review. The resulting document was discussed in a face-to-face meeting adopting a nominal group technique to reach consensus (i.e. 100% agreement) using the Delphi method., Results: A consensus was achieved in defining the following: the clinical characteristics differentiating inflammatory and non-inflammatory signs and symptoms of joint disease; the most important differential diagnoses of PsA in clinical practice; the most useful screening questionnaires, serum laboratory tests and imaging techniques for the detection of early PsA; the criteria for dermatologist to refer patients with PsO to rheumatologist; the criteria for the diagnosis of PsA; the selection of the indices that the dermatologist could use for measuring the activity and severity of PsA in clinical practice; when systemic steroids and/or intra-articular steroid injections are indicated in the treatment of PsA. Finally, systemic treatments including synthetic and biologic disease-modifying antirheumatic drugs to be considered for the treatment of PsA have been reported., Conclusions: The implementations of these practical recommendations could be very helpful for the management of patients with PsA in the dermatology setting including early diagnosis and treatment., (© 2017 European Academy of Dermatology and Venereology.)