Efficacy and safety of guselkumab in patients with psoriasis who have an inadequate response to ustekinumab: results of the randomized, double‐blind, phase III NAVIGATE trial

Guselkumab is efficacious and safe in psoriasis patients who failed anti-IL17: a 52-week real-life study

BACKGROUND

Interleukin (IL)23/Th17 axis is the leading actor of psoriasis pathogenesis. Guselkumab is the first anti-IL23 approved for psoriasis. Anti-IL23 and anti-IL17 partially share their therapeutic target currently appearing as the most efficacious available psoriasis treatments. Real-life data on guselkumab performance in anti-IL17 failure patients are scant.

METHODS

A 52-week real-life single-center retrospective study was performed to evaluate the long-term efficacy and safety of guselkumab in patients who previously failed anti-IL17.

RESULTS

A total of 44 patients were enrolled (28 male, 63.6%; mean age 59.0 ± 10.2years). A statistically significant improvement of Psoriasis Area Severity Index (PASI) and Body Surface Area (BSA) was assessed at each follow-up (PASI decreased from 13.9 ± 8.1 to 0.9 ± 0.7 at week52 while BSA from 24.3 ± 19.6 to 1.3 ± 1.4, p < 0.001). Nail Psoriasis Severity Index (NAPSI) improvement was collected as well, even if being statistically significative only at week28 and thereafter [2.9 ± 6.2 at baseline, 0.9 ± 1.5 at week28, (p < 0.05)]. Only 3(6.8%) patients discontinued guselkumab due to secondary inefficacy. No cases of serious Adverse Events were assessed.

CONCLUSION

Our real-life study confirmed the efficacy and safety of guselkumab in daily clinical practice suggesting it as a valuable weapon also in psoriasis patients who previously failed anti-IL17 treatments.

Efficacy of Brodalumab for Moderate to Severe Plaque Psoriasis: A Canadian Network Meta-Analysis

BACKGROUND

Several treatments for plaque psoriasis are available, but it remains challenging for physicians to make informed treatment decisions due to a lack of head-to-head trials.

OBJECTIVES

This network meta-analysis (NMA) compares the efficacy of brodalumab to other biologic agents in Canada for moderate-to-severe plaque psoriasis.

METHODS

A systematic literature review of randomized controlled trials (RCTs) published before October 2017 was conducted to populate the NMA. Comparators included etanercept, infliximab, adalimumab, ustekinumab, secukinumab, ixekizumab, guselkumab, and placebo. The primary outcome was the psoriasis area and severity index (PASI) response at the end of induction phase. A random effects Bayesian multinomial likelihood and probit link model analyzed PASI 75, 90, and 100 responses. Inconsistency and heterogeneity were assessed. Sensitivity analyses were conducted to explore potential effect modifiers like baseline PASI score, age, and weight.

RESULTS

A total of 43 RCTs were included. Brodalumab 210 mg had significantly better PASI response than etanercept, ustekinumab, adalimumab, secukinumab, and guselkumab and comparable responses to infliximab and ixekizumab. Relative risk of PASI 90 response for brodalumab varied from 2.84 (95% credible interval [CrI]: 2.35-3.52, P < .05) to 0.99 (95% CrI: 0.88-1.11, ns) compared to etanercept and ixekizumab. This was similar across PASI 75 responses, but a larger relative risk between brodalumab and all comparators except ixekizumab was observed for PASI 100. No significant heterogeneity or inconsistencies were identified. The results were consistent across sensitivity analyses, indicating robustness of the results.

CONCLUSION

Brodalumab 210 mg has efficacy superior to most biologic agents for moderate-to-severe plaque psoriasis in Canada.

Translating Knowledge of IL-23 Targeting into New Solutions for Psoriasis Treatment

Following a brief introduction by Prof Lambert, the symposium started with an in-depth review of the current unmet needs in the clinical management of psoriasis, provided by Prof Radtke, who also reported on the multiple and cumulative negative effects of the condition on patients’ health, activity engagement, family relationships, and overall quality of life (QoL). Prof Radtke went on to describe the factors contributing to the burden of psoriasis, other than disease severity, and highlighted the importance of taking a holistic approach to the management of the condition that takes into consideration the individual patient’s expectations and needs. Prof Lambert continued the symposium with an overview of the core pathways involved in disease pathogenesis in relation to the development of novel targeted immunotherapies. Prof Lambert reviewed the current clinical paradigms for the treatment of psoriasis, including targeted biological therapies, such as TNF-α inhibitors and newer agents acting on IL-17 and IL-23, which research shows may represent a more effective approach to the treatment of psoriasis and other autoimmune inflammatory disorders. The latest Phase III clinical trial data on therapies selectively targeting the upstream cytokine IL-23 were then presented by Dr Piaserico, with a focus on the monoclonal antibodies guselkumab, risankizumab, and tildrakizumab, and their potential to achieve consistent rates of skin clearance long-term, with the added benefit of prolonged dose intervals and intermittent treatment in some patients.

Discover the Potential: Exploring New Frontiers of IL-23 Inhibitors

Affecting up to 11.4% of the population worldwide,1 psoriasis is one of the most common chronic autoinflammatory diseases. It is associated with multiple comorbidities and can have profound negative effects on physical and emotional wellbeing and overall quality of life, making it a serious public health concern. A primary objective of this symposium was to explain the pathogenesis of psoriasis and its relation to the development of novel targeted immune therapies. Psoriasis is characterised by skin and systemic damage consequent to pathogenic cytokine production under the influence of both environmental and genetic factors. Differentiation of Th17 cells from naïve T cells is central to the development of psoriasis, and recently pathogenic models have identified IL-23 as the pathogenic cytokine responsible for promoting Th17 cell proliferation and IL-17 production. Therefore, selective blockade of IL-23 may be instrumental in controlling Th17-mediated inflammation in psoriasis. Another key objective of the symposium was to evaluate key learnings from the latest available clinical trial data on agents targeting the IL-23/Th17 signalling pathway and how these learnings can be harnessed to improve the management of patients with psoriasis. Both IL-17 inhibitors (e.g., ixekizumab and secukinumab) and IL-23 inhibitors (e.g., guselkumab and risankizumab) have demonstrated high efficacy and a good safety profile. Anti-IL-17 agents have faster onset of action and allow the achievement of good response rates very rapidly. Efficacy is better maintained over time with anti-IL-23 agents, including in patients who have stopped and those that then restarted anti-IL-23 therapy after a withdrawal period. Despite the availability of effective treatments, undertreatment in psoriasis is common. This can be attributed to factors such as the heterogeneous nature of psoriasis and relatively large prevalence of addictive behaviours in patients with the condition. When making treatment decisions, it is important to consider these factors as well as patient preferences and expectations, so that treatment can be individualised as much as possible. The symposium concluded with an interactive session, which offered the audience the opportunity to ask questions and discuss relevant issues of interest.

When worlds collide: Th17 and Treg cells in cancer and autoimmunity

The balance between Th17 cells and regulatory T cells (Tregs) has emerged as a prominent factor in regulating autoimmunity and cancer. Th17 cells are vital for host defense against pathogens but have also been implicated in causing autoimmune disorders and cancer, though their role in carcinogenesis is less well understood. Tregs are required for self-tolerance and defense against autoimmunity and often correlate with cancer progression. This review addresses the importance of a functional homeostasis between these two subsets in health and the consequences of its disruption when these forces collide in disease. Importantly, we discuss the ability of Th17 cells to mediate cancer regression in immunotherapy, including adoptive transfer and checkpoint blockade therapy, and the therapeutic possibilities of purposefully offsetting the Th17/Treg balance to treat patients with cancer as well as those with autoimmune diseases.