Efficacy and safety of tildrakizumab 100 mg for plaque psoriasis in patients randomized to treatment continuation vs treatment withdrawal with retreatment upon relapse in reSURFACE 1

Anti-IL23 biologic therapies in the treatment of psoriasis: real-world experience versus clinical trials data

Nowadays, the biological equipment available for the treatment of moderate-to-severe psoriasis is plenty. Anti-interleukin-23 represents the latest class of biologic approved for the management of moderate-to-severe psoriasis. Their efficacy and safety have been assessed through two major sources: clinical trials (CTs) and real-world experiences data (RWE). Notably, the two sources differ from one another, but together, they complement information and current knowledge on both efficacy and safety of biological therapy. We carry out a review on CTs and RWE reports on the latest group of biological approved for moderate-to-severe psoriasis: anti-IL23 (guselkumab, risankizumab, and tildrakizumab).

Drug safety evaluation of tildrakizumab for psoriasis: a review of the current knowledge

INTRODUCTION

Psoriasis is a chronic inflammatory skin disease that may have an important negative impact on a patient's quality of life. Biological agents deeply changed the management of its moderate-to-severe forms. Interleukin-23 inhibitors represent the latest biologics class approved for the treatment of moderate-to-severe psoriasis. In particular, tildrakizumab, the latest available anti-interleukin-23 on the Italian market, is a humanized monoclonal antibody specifically targeting the p19 subunit of IL-23.

AREAS COVERED

The objective of this review is to evaluate the safety profile of tildrakizumab in moderate-to-severe psoriasis patients. A literature review included articles until July 2022.

EXPERT OPINION

Our analysis showed tildrakizumab as a generally safe option for the treatment of psoriasis, with most of the reported adverse events being classified as mild or moderate, and rarely requiring treatment discontinuation. Furthermore, in line with other interleukin-23 inhibitor, no concerns have been raised for tildrakizumab in regard to inflammatory bowel diseases, which represent a significant comorbidity to investigate before starting other biologics (IL-17 inhibitors). However, more real-life long-term data are needed to confirm trial results to further confirm tildrakizumab as a generally safe treatment option for psoriasis.

Time to Relapse After Discontinuing Systemic Treatment for Psoriasis: A Systematic Review

Background

The decision of when to discontinue systemic treatment after achieving remission in psoriasis is an important question. In this systematic review, we sought to evaluate time to relapse after the discontinuation of systemic treatment in psoriasis patients.

Methods

Systematic searches of PubMed, Cochrane Library, and Embase databases were performed for randomized controlled studies reporting time to relapse after discontinuation of systemic drugs in psoriasis patients. In addition, pharmaceutical companies were contacted by the authors regarding missing data from the identified publications. In each publication, the time to psoriasis relapse and the timing of drug discontinuation were carefully assessed. The level of psoriasis control at the time of drug discontinuation and the definition used for psoriasis relapse were taken into account.

Results

Thirty articles published before April 2021 were included in the systematic review. Four articles focused on conventional systemic treatments with methotrexate and/or cyclosporine, nine focused on tumor necrosis factor (TNF) antagonists, eight focused on interleukin-17 (IL-17) antagonists, eight focused on IL-12/23 or IL-23 antagonists, and one focused on tofacitinib and apremilast. Different definitions were used to define psoriasis treatment success at the time of drug discontinuation. Similarly, heterogeneous criteria were used to define psoriasis relapse. Comparison between drugs was performed indirectly (i.e. across studies) for most drugs. Considering time of 50% loss of maximum Psoriasis Area Severity Index (PASI) improvement, a shorter median time to psoriasis relapse was observed with traditional systemic treatment (~ 4 weeks) compared to biological agents (from 12 to ~ 34 weeks). When using stringent relapse criteria, such as loss of PASI 90, a longer time to relapse after treatment cessation was observed with IL-23 antagonists (21–42 weeks) versus IL-17 antagonists (7–24 weeks).

Conclusion

Biological agents are associated with a longer time to relapse than oral systemic agents after drug discontinuation. Among biologicals, IL-23 antagonists are associated with the longest time to relapse. These findings may have clinical consequences for the selection of systemic agents when intermittent treatment is necessary.

Supplementary Information

The online version contains supplementary material available at 10.1007/s40257-022-00679-y.

Biologic Treatments of Psoriasis: An Update for the Clinician

The advent of biologic agents within the past two decades has dramatically improved the treatment of psoriasis and psoriatic arthritis. Given that there now exists 11 FDA approved biologic options available for psoriasis, with more in the pipeline, the therapeutic armamentarium has been greatly enhanced. However, the fact that there are so many available options has also caused confusion for providers. Therefore, this manuscript deliberately focuses on the most clinically useful facts (such as efficacy and safety data) about each and every FDA approved biologic agent (including pipeline agents) for psoriasis. Moreover, among the clinically relevant facts, this manuscript purposely emphasizes the unique merits and demerits of each agent to make it easier for the provider to select which one of these many options is the best for the particular patient on hand. The goal of this manuscript is to aid the busy practicing dermatologist in becoming more adept at using these agents with the ultimate aim of improving patient care.

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