Three cases of non-atopic hyperkeratotic hand eczema treated with dupilumab

Efficacy and Safety of Dupilumab in the Treatment of Hand Eczema: A Retrospective Study

Background: Hand eczema (HE) is a prevalent chronic condition that exerts a substantial and enduring adverse effect on quality of life (QoL) and imposes an economic burden on society. Managing HE poses challenges due to the limited effectiveness and potential adverse effects associated with many currently available topical and systemic treatments. Methods: This article examines twenty-one patients affected by HE treated with dupilumab, a fully human monoclonal antibody targeting interleukin IL-4 and IL-13 signaling. This involves a retrospective descriptive statistical analysis. Results: At week 6, HECSI-75 was achieved by 12 patients (57.9%). The proportion of patients meeting the HECSI-75 criteria steadily increased over the observation weeks, reaching 90% at week 16 and 100% at week 104. Furthermore, HECSI-90 and HECSI-100 were achieved by 75% and 60% of patients at week 16 and by 100% and 85% of patients at week 68, respectively. All patients who reached week 104 maintained complete disease remission according to HECSI 100. Conclusions: In all patients, dupilumab was shown to be an effective drug in achieving disease clearance, as indicated by all the parameters considered at each evaluation point (Week 6, Week 16, Week 32, Week 52, Week 68, Week 84, and Week 104), in comparison to the initial baseline.

Real-World Clinical Experience of Dupilumab in the Treatment of Chronic Palmo-Plantar Eczema in Patients with Moderate-Severe Atopic Dermatitis: 52-Week Follow-Up

Background: Hand-foot eczema (HFE) are special locations of dermatitis, which are often associated with atopic dermatitis (AD) and have a significant negative impact on the quality of life, demanding a clinically relevant improvement. Objectives: To evaluate the effectiveness and safety of dupilumab in the treatment of eczema localized in hands and/or feet in patients with moderate-to-severe AD. Methods: Retrospective multicenter study of adult patients with HFE treated with dupilumab for their AD. Patients with other concomitantly systemic immunosuppressive treatments did not undergo a washout period. The severity of palmar and/or plantar involvement was assessed using the Physician Global Assessment (PGA) scale on a scale of 0 ( = clear) to 5 ( = very severe). Eczema Area and Severity Index (EASI) and NRS-pruritus scales were also evaluated. One hundred percent of patients reached week 16, while 67/84 reached week 52 of follow-up. Results: A total of 84 patients were included 86.69% of patients showed a reduction in PGA-Hand, and 80.34% in PGA-Foot at week 52, EASI improvement was reached by 83.55% of patients at week 16 and 87.35% at week 52. Reduction of pruritus (≥4 points in NRS-pruritus scale) was 73.01% at week 16 and 80.67% at week 52. No differences in response to dupilumab were observed in the different subtypes of palmo-plantar dermatitis. Conclusions: The results obtained in our study suggest that dupilumab may be an effective and safe therapeutic option for the treatment of dermatitis localized in hands and/or feet.

Efficacy and safety of dupilumab in patients with severe chronic hand eczema with inadequate response or intolerance to alitretinoin: a randomized, double-blind, placebo-controlled phase IIb proof-of-concept study

BACKGROUND

Effective treatment options for patients with chronic hand eczema (CHE) are scarce. Dupilumab is licensed for the treatment of moderate-to-severe atopic dermatitis and has shown promising results for the treatment of hand eczema in other studies.

OBJECTIVES

To evaluate the efficacy and safety of dupilumab in adult patients with severe CHE (subtypes recurrent vesicular hand eczema or chronic fissured hand eczema) who have an inadequate response/intolerance to alitretinoin, or when alitretinoin is medically inadvisable.

METHODS

In this 16-week, randomized, double-blind, placebo-controlled proof-of-concept phase IIb trial, patients with severe CHE were randomized 2 : 1 to dupilumab 300 mg or placebo subcutaneously every 2 weeks. Patients visited the outpatient clinic at the initiation of the study drug, and every 4 weeks until 16 weeks of treatment. The primary endpoint was the proportion of patients achieving at least a 75% improvement on the Hand Eczema Severity Index score (HECSI-75) at week 16. Adverse events were monitored during each visit. The study was registered on ClinicalTrials.gov (identifier NCT04512339).

RESULTS

In total, 30 patients were randomized, and 29 patients received the assigned study drug (dupilumab n = 20, placebo n = 9). At week 16, more patients achieved HECSI-75 in the dupilumab group than in the placebo group {95% [95% confidence interval (CI) 73.1-99.7] vs. 33% [95% CI 9.0-69.1]}. Dupilumab also showed greater least square mean percentage change from baseline to week 16 in peak pruritus Numerical Rating Scale compared with placebo [-66.5 ± 10.7 (95% CI -88.6 to -44.5) vs. -25.3 ± 17.0 (95% CI -60.1-9.4)]. Adverse events were similar for the dupilumab and placebo groups and were mostly mild. There were no serious adverse events, nor did any of the adverse events lead to discontinuation of the study drug.

CONCLUSIONS

Dupilumab was efficacious and well tolerated. Larger studies of longer duration are needed to provide more evidence on the -efficacy of dupilumab in CHE. Moreover, larger studies could also enable comparisons between clinical subtypes or aetiological -diagnoses.

S2k-Leitlinie Diagnostik, Prävention und Therapie des Handekzems: S2k guideline diagnosis, prevention and therapy of hand eczema

Die S2k‐Leitlinie „Diagnostik, Prävention und Therapie des Handekzems (HE)“ gibt auf der Grundlage eines evidenz‐ und konsensbasierten Ansatzes konkrete Handlungsanweisungen und Empfehlungen für die Diagnostik, Prävention und Therapie des HE. Die Leitlinie wurde auf der Grundlage der deutschen Leitlinie „Management von Handekzemen“ aus dem Jahr 2009 und der aktuellen Leitlinie der European Society of Contact Dermatitis (ESCD) „Guidelines for diagnosis, prevention and treatment of hand eczema“ aus dem Jahr 2022 erstellt. Allgemeines Ziel der Leitlinie ist es, Dermatologen und Allergologen in der Praxis und Klinik eine akzeptierte, evidenzbasierte Entscheidungshilfe für die Auswahl sowie Durchführung einer geeigneten und suffizienten Therapie für Patienten mit Handekzemen zur Verfügung zu stellen. Die Leitlinie basiert auf zwei Cochrane‐Reviews zu therapeutischen und präventiven Interventionen beim HE. Die übrigen Kapitel wurden überwiegend basierend auf nicht systematischen Literaturrecherchen durch die Expertengruppe erarbeitet und konsentiert. Die Expertenkommission bestand aus Mitgliedern von allergologischen und berufsdermatologischen Fachgesellschaften und Arbeitsgruppen, einer Patientenvertretung und Methodikern. Im Rahmen einer Konsensuskonferenz am 15.09.2022 wurden die Vorschläge für die Empfehlungen und Kernaussagen unter Verwendung eines nominalen Gruppenprozesses konsentiert. Der strukturierte Konsensfindungsprozess wurde professionell moderiert. Die vorliegende Leitlinie hat eine Gültigkeit bis zum 22.02.2028.

S2k guideline diagnosis, prevention, and therapy of hand eczema

The consensus-based guideline "Diagnosis, prevention, and treatment of hand eczema (HE)" provides concrete instructions and recommendations for diagnosis, prevention, and therapy of HE based on an evidence- and consensus-based approach. The guideline was created based on the German guideline "Management von Handekzemen" from 2009 and the current guideline of the European Society of Contact Dermatitis (ESCD) "Guidelines for diagnosis, prevention, and treatment of hand eczema" from 2022. The general goal of the guideline is to provide dermatologists and allergologists in practice and clinics with an accepted, evidence-based decision-making tool for selecting and conducting suitable and sufficient therapy for patients with hand eczema. The guideline is based on two Cochrane reviews of therapeutic and preventive interventions for HE. The remaining chapters were mainly developed and consented based on non-systematic literature research by the expert group. The expert group consisted of members of allergological and occupational dermatological professional associations and working groups, a patient representative, and methodologists. The proposals for recommendations and key statements were consented by using a nominal group process during a consensus conference on September 15, 2022. The structured consensus-building process was professionally moderated. This guideline is valid until February 22, 2028.

Circulating biomarkers are associated with disease severity of chronic hand eczema and atopic dermatitis

BACKGROUND

Although chronic hand eczema (CHE) is a highly prevalent and disabling skin disease, it is currently unknown if CHE is associated with systemic inflammation.

OBJECTIVES

To characterize the plasma inflammatory signature of CHE.

METHODS

Using Proximity Extension Assay technology, we assessed 266 inflammatory and cardiovascular disease risk proteins in the plasma of 40 healthy controls, 57 patients with atopic dermatitis (AD) with active lesions, 11 with CHE and a history of AD (CHEPREVIOUS_AD), and 40 with CHE and no history of AD (CHENO_AD). Filaggrin gene mutation status was also assessed. Protein expression was compared between groups and according to disease severity. Correlation analyses for biomarkers, and clinical- and self-reported variables, were performed.

RESULTS

Very severe CHENO_AD was associated with systemic inflammation when compared with controls. Levels of T helper (Th)2- and Th1-, general inflammation and eosinophil activation markers increased with severity of CHENO_AD, primarily being significantly increased in very severe disease. Significant, positive correlations were found between markers from these pathways and severity of CHENO_AD. Moderate-to-severe but not mild AD displayed systemic inflammation. The Th2 markers C-C motif chemokine (CCL)17 and CCL13 (also known as monocyte chemotactic protein 4) were the top differentially expressed proteins in both very severe CHENO_AD and moderate-to-severe AD, showing a higher fold change and significance in AD. CCL17 and CCL13 levels further correlated positively with disease severity in both CHENO_AD and AD.

CONCLUSIONS

Systemic Th2-driven inflammation is shared between very severe CHE with no history of AD, and moderate-to-severe AD, suggesting that Th2 cell targeting could be effective in several CHE subtypes.

Dupilumab in Inflammatory Skin Diseases: A Systematic Review

Dupilumab was first approved for the treatment of atopic dermatitis (AD) and blocks the signaling of interleukin (IL)-4 and -13. Several other chronic skin conditions share mechanistic overlaps with AD in their pathophysiology, i.e., are linked to type 2 inflammation. Most recently, dupilumab was approved by the U.S. Food and Drug Administration for prurigo nodularis (PN). Given its relatively good safety profile, effective off-label use of dupilumab has been reported for a multitude of dermatologic diseases and several clinical trials for dermatologic skin conditions are currently ongoing. We conducted a systematic review of applications of dupilumab in dermatology other than AD and PN by searching the databases PubMed/Medline, Scopus, Web of Science and Cochrane Library as well as the clinical trial registry ClinicalTrials.gov. We found several reports for effective treatment of bullous autoimmune diseases, eczema, prurigo, alopecia areata, chronic spontaneous urticaria, Netherton syndrome and a variety of other chronic inflammatory skin diseases.

Occupational Hand Dermatitis

PURPOSE OF REVIEW

Occupational hand dermatitis is a common work-related disorder of the skin. Prevention and management of this disease is critical to improving workers' quality of life and for occupation-specific retention.

RECENT FINDINGS

This is a critical review of the current literature on occupational hand dermatitis. Occupational dermatitis continues to have a high prevalence among workers although the overall incidence may be slowly decreasing. Irritant contact dermatitis due to wet work exposure is the most common cause of occupational hand dermatitis. Healthcare workers, hairdressers, and metal workers are at particularly high risk for this disease. While some prevention programs have been ineffective in mitigating occupational hand dermatitis, other more resource-intensive initiatives may have benefit. Continued research is needed on ways to manage wet work exposures and on scalable, effective prevention programs for occupational hand dermatitis. The spectrum of culprit contact allergens continues to evolve, and vigilance for potential occupation-specific allergens remains important.

Quick Treatment of Very Severe Refractory Hand and Foot Eczema with Dupilumab: A Case Report and Literature Review

Previously case reports showed dupilumab may benefit for hand eczema treatment, but relatively comprehensive assessments are lacking. A 45-year-old male with multiple severe vesicles, bullae and pustule on the palmar aspects of both hand and foot diagnosed dyshidrotic eczema by pathology was treated with dupilumab at an initial dose of 600 mg subcutaneously, followed by 300 mg every 2 weeks. The physician's assessment of the patient revealed an excellent response to the treatment with dupilumab; the lesions and symptoms achieved dramatic improvement on the third day, and at 6 weeks, the hands and feet became completely normal without relapse in the past 1.5 years of discontinuation. Systematic literature searches were performed, and 6 case reports, 5 case series, 2 prospective observational studies and 1 retrospective review with a total of 150 patients were identified to describing the evaluation of efficacy and safety of dupilumab treatment for hand and foot eczema. Dupilumab appears to be safe and well tolerated with clinical benefit in recalcitrant hand and foot eczema. Larger randomized controlled trials using validated outcome measures and detailed hand eczema type and population classification are needed before dupilumab can be applied in clinical settings.

Occupational Chronic Contact Dermatitis Successfully Treated with Dupilumab: A Case Series

BACKGROUND

Occupational contact dermatitis may progress to a chronic course with an unfavorable prognosis. Dupilumab has been shown to be effective as a treatment for moderate-to-severe atopic dermatitis as well as other types of dermatitis.

OBJECTIVES

The aim of the study was to describe cases of chronic recalcitrant occupational contact dermatitis treated with dupilumab and with long-term follow-up.

METHODS

A retrospective review of 6 patients treated with dupilumab for chronic occupational contact dermatitis for periods of up to 30 months was performed.

RESULTS

All 6 patients had a positive and sustainable response, with dermatitis clearance and the ability to sustain work tasks.

CONCLUSIONS

We report a case series of atopic and nonatopic workers with occupational chronic contact dermatitis who failed to achieve remission under various systemic modalities but did so using dupilumab. We suggest considering dupilumab treatment for recalcitrant occupational contact dermatitis.

Irritant Contact Dermatitis — a Review

Purpose of Review

Recent Findings

Summary

The long-term effect of dupilumab on chronic hand eczema in patients with moderate to severe atopic dermatitis - 52 week results from the Dutch BioDay registry

Background

The hands are a common predilection site of atopic dermatitis (AD). Dupilumab is licensed for the treatment of AD but not for chronic hand eczema (CHE), while CHE is challenging to treat.

Objectives

To evaluate the long‐term effect of dupilumab on hand eczema (HE) in patients with AD from the BioDay Registry.

Methods

A prospective observational study of adult patients with HE, treated for AD with dupilumab. Patients with a HE severity of at least moderate at baseline were considered for analysis. Patients with other concomitantly systemic immunosuppressive treatments were excluded. Clinical effectiveness on HE severity, using the Hand Eczema Severity Index (HECSI) and photographic guide, and health‐related quality of life, using the Quality of Life in Hand Eczema Questionnaire (QOLHEQ), were evaluated.

Results

A total of 72 patients were included. HECSI‐75 was achieved by 54/62 patients (87.1%) and HECSI‐90 by 39/72 (62.9%) at 52 weeks. Based on the photographic guide, 56/62 patients (90.3%) achieved the endpoint of ‘clear’ or ‘almost clear’. Mean QOLHEQ reduction was −63.5% (95% confidence interval −38.23 to −27.41). There was no difference in response between HE subtypes.

Conclusions

The results from this study hold promise for dupilumab to be a suitable treatment option for isolated CHE.

Novel insights into contact dermatitis

Contact dermatitis is a common disease, caused by repeated skin contact to contact allergens or irritants, resulting in allergic contact dermatitis (ACD) and/or irritant contact dermatitis. Attempts have been made to identify biomarkers to distinguish irritant and allergic patch test reactions, which could aid diagnosis. Some promising candidates have recently been identified, but verification and validation in clinical cases still need to be done. New causes of ACD are constantly recognized. In this review, 10 new contact allergens from recent years, were identified, several relating to anti-age products. Frequent allergens causing considerable morbidity in the population such as the preservative methylisothiazolinone (MI) have been regulated in EU. A significant drop in cases has been seen, while high rates are still occurring in other areas such as North America. Other frequent causes are fragrance allergens especially widely used terpenes and acrylates used in medical devises for control of diabetes. These represent unsolved problems. Recent advances in immunology have opened for a better understanding of the complexity of contact dermatitis, especially ACD. The disease may be more heterogenous that previous understood with several subtypes. With the rapidly evolving molecular understanding of the disease, the potential for development of new drugs for personalized treatment of contact dermatitis is considerable.

Handekzem – Gleiche Therapie für alle Formen?

Es gibt nicht einen einzigen Typ des chronischen Handekzems (CHE) – weder morphologisch noch immunologisch. Schutz und Präventionsmaßnahmen können für alle Typen des CHE definiert werden. Die Therapie muss passen und zielgerichtet sein. Einige Therapien können jedoch für alle Typen des Handekzems angeboten werden wie topische Kortikosteroide, Calcineurinantagonisten, UV-Therapie und Alitretinoin, ggf. auch Dupilumab, was in größeren Studien untersucht werden sollte. Die Wahrnehmung des Handekzems sollte gerade in Zeiten der Irritation durch Desinfektion der Hände erhöht werden, damit Prävention und frühzeitige Therapie erfolgen können.

The emerging role of dupilumab in dermatological indications

INTRODUCTION

Dupilumab represents a breakthrough in the management of atopic dermatitis (AD), thanks to its powerful T-helper (Th)2-mediated immunity modulating activity. It can reduce the atopic skin molecular signature and induce a significant decrease in the clinical signs and symptoms of AD patients.

AREAS COVERED

Th2 activation has been confirmed or suspected in skin diseases other than AD, and several reports about the treatment with dupilumab in these conditions have been published. In order to review the new indications of dupilumab in dermatology, we performed a search on PubMed, Embase, Cochrane Skin databases, and clinicaltrials.gov.

EXPERT OPINION

The analysis of available literature suggests that dupilumab may have a large application in dermatology, besides AD. Clinical trials are underway on some widespread disease (i.e. chronic urticaria, bullous pemphigoid, alopecia areata, or allergic contact dermatitis). The data are still partial, but they seem to indicate that dupilumab is efficacious and safe. On the other hand, the dupilumab use in some rare skin diseases remains only hypothetical or linked to few case reports. Dupilumab could have a prominent position in the therapeutic algorithm of chronic skin diseases that significantly affect the quality of life of patients, require long-term treatment, or lacking effective therapies.

Drugs for the Treatment of Chronic Hand Eczema: Successes and Key Challenges

Chronic hand eczema (CHE) is a common and burdensome inflammatory skin condition seen in up to 10% of the population, more often in high-risk occupational workers. Topical therapeutics comprise the standard of care, but up to 65% of cases do not resolve after treatment, and moderate-to-severe cases are often resistant to topical therapeutics and require systemic options instead. To date, there are no systemic therapeutics approved to treat CHE in the United States, but several drugs are under investigation as potential treatments for CHE. The primary focus of this review is on the novel therapeutics, topical and systemic, that are under investigation in recently completed or currently ongoing trials. This review also briefly outlines the existing treatments utilized for CHE, often with limited success or extensive adverse effects. CHE represents a major challenge for physicians and patients alike, and efforts to improve the minimally invasive diagnostic tools and treatment paradigms are ongoing. In the near future, CHE patients may benefit from new topical and systemic therapeutics that specifically target abnormally expressed immune markers.