Interventions for hand eczema

Health-Related Quality of Life in Chronic Hand Eczema in a Phase 2b Trial of Delgocitinib Cream

INTRODUCTION

Chronic Hand Eczema (CHE) is a multifactorial, burdensome, inflammatory skin disease, with limited treatment options. In a double-blind dose-ranging phase 2b clinical trial, participants with CHE received delgocitinib cream, a topical pan-Janus kinase (JAK) inhibitor, or cream vehicle (clinical results published elsewhere). The objectives were to analyse patient-reported outcomes (PROs) in participants with mild and moderate to severe CHE at screening, and to investigate the impact on PROs during treatment in participants with moderate to severe CHE.

METHODS

Firstly, Dermatology Life Quality Index (DLQI), EQ-5D-5L, and Hand Eczema Impact Scale (HEIS) per severity were analysed at screening. Secondly, PROs were analysed in the subset of participants with moderate to severe CHE; participants receiving delgocitinib cream 20 mg/g were compared with participants receiving cream vehicle for 16 weeks.

RESULTS

At screening, mean (SD) DLQI, EQ-5D-5L, and HEIS were 8.1 (5.8), 0.788 (0.175), and 1.7 (0.8), respectively for mild CHE (n = 93), and 12.1 (6.9), 0.689 (0.236), and 2.3 (0.9) for participants with moderate to severe CHE (n = 202), respectively. Among the participants with moderate to severe CHE who received delgocitinib (n = 41), the least squares mean [SE] change from baseline to week 16 improved compared to cream vehicle (n = 38) in DLQI (- 7.1 [0.9] vs. - 4.6 [0.9]), EQ-5D-5L (0.228 [0.032] vs. 0.096 [0.034]), and HEIS (- 1.5 [0.2] vs. - 0.8 [0.2]) (P < 0.05).

CONCLUSIONS

Mild CHE had a moderate effect, whereas moderate to severe CHE had a very large effect on patients' Health-Related Quality of Life at screening. Treatment with delgocitinib cream was associated with considerable improvement in PROs and represents a potentially valuable treatment option.

TRIAL REGISTRATION

ClinicalTrials. gov identifier NCT03683719.

Chronic Hand Eczema (CHE): A Narrative Review

Chronic hand eczema (CHE) is a common and challenging skin condition, characterized by persistent hand dermatitis which lasts over 3 months or recurs at least twice a year. This condition is often multifactorial, involving genetic predispositions, environmental factors and triggers, such as irritants and allergens. Studies show a higher incidence in women, though prevalence estimates vary across different age groups. The pathogenesis involves complex immune mechanisms, particularly Th1/Th2 cell responses. Clinically, CHE presents in various forms, with symptoms such as redness, scaling and itching that significantly impact patients' quality of life. Treatment approaches are diverse. While emollients and topical corticosteroids have historically been the mainstay, new systemic therapies like JAK inhibitors and biologics are progressively being used for severe cases. Key molecular targets comprise interleukin (IL)-4 and IL-13, the JAK-STAT pathway, phosphodiesterase 4 (PDE4) and chemoattractant chemokines. Managing CHE effectively remains a challenge because of its chronicity and the variability in individual responses to treatment. However, emerging therapeutic strategies will help clinicians to offer more patient-centred approaches.

Italian Expert Opinion on Chronic Hand Eczema: from Guidelines to Clinical Practice

INTRODUCTION

Chronic hand eczema (CHE) is an inflammatory skin condition characterized by different pathomechanisms, clinical presentations, and prognoses. Treatment is often challenging because of limited approved drugs, and severe CHE is associated with reduced quality of life (QoL) and poor overall health measures in terms of psychological, functional, and occupational challenges. This study aims to describe the real-life management practices of Italian dermatologists who frequently treat patients with CHE, compare these practices with existing guidelines, and propose practical clinical recommendations for the management of these patients.

METHODS

An 11-question survey was administered to 14 participating dermatologists to gather their insights on the diagnosis, treatment, and management of CHE. Moreover, a comprehensive literature search was conducted over the previous 10 years as a starting point for discussion among experts.

RESULTS

CHE was the reason for 6.9% of dermatological consultations by the 14 experts. Median time to CHE diagnosis was 12 (range: 2-24) months. Fissuring and itching (85.7% for both) were the most frequently reported signs and symptoms of CHE. The survey highlighted the need for long-term treatment that is effective and well tolerated, with experts emphasizing the importance of improving disease awareness among physicians and patients. Practical clinical approaches were proposed, emphasizing the significance of a thorough medical history and identification of symptoms in the management of CHE. Experts advocated for specifically developed CHE treatment approaches, concentrating on alleviating symptoms and signs, minimizing adverse events/safety issues, enhancing the QoL of patients, and long-term disease control. Findings from this survey were further discussed and compared to recommendations of the available guidelines for the management of CHE.

CONCLUSIONS

Managing CHE requires a comprehensive approach that considers both objective clinical factors and subjective patient expectations. Experts emphasized the need for effective and well-tolerated long-term therapies, improved disease awareness, and communication among physicians and patients.

Chronic Hand Eczema

Chronic hand eczema (CHE) is a complex, challenging, and frequently multifactorial skin disease of the hands. It is very common in the general population, especially in certain professions. When hand eczema (HE) persists for longer than 3 months or has a minimum of two relapses per year after initial manifestation with complete clearance, it is considered chronic. In this case, health-related quality of life and the patient's working life are often impaired. CHE can be considered as an umbrella term because it covers different clinical pictures and etiologies. To date, there is no definite and unique HE classification. Treatment starts with identifying the individual HE etiology paralleled by symptomatic therapy (local and/or systemic and/or ultraviolet phototherapy). Sustainable management of HE requires the identification and avoidance of its triggering factors, from the professional and private environment. This includes ruling out allergic contact dermatitis if any HE persists for more than 3 months despite adequate therapy. Randomized controlled trials investigating the efficacy in HE are lacking for several treatment modalities. Patient education measures of skin protection and prevention complete the multimodal treatment.

Adverse events from topical corticosteroid use in chronic hand eczema - Findings from the Danish Skin Cohort

Background

Topical corticosteroids (TCS) are used to treat most patients with chronic hand eczema (CHE), but knowledge about TCS-related adverse events in CHE is limited.

Objectives

To investigate patient-reported adverse events to TCS in CHE patients.

Methods

Data on adverse events related to TCS use in patients with CHE were analyzed from the Danish Skin Cohort; a prospective survey of a hospital cohort. We assessed patients' knowledge about TCS use and adverse event risks, and preference of TCS versus a nonsteroidal topical alternative.

Results

Of 724 adults with CHE (64.0% women; mean age 57.5 [standard deviation 12.8] years), 64.1% reported skin atrophy, 41.4% cracks/fissures, 23.9% bleeding, 45.9% pain/stinging sensation, 40.0% reduced hand dexterity, and 40.2% worsening of CHE signs or symptoms from using TCS. We observed CHE-severity-dependent associations (all groups; P < .0001). Most patients (76.4%) would prefer a nonsteroidal option, 10.9% were neutral/indifferent, and 12.7% would prefer TCS for CHE. The median numerical rating scale-score (ranging from 0 to 10) was 10 (interquartile range 6-10) for preferring a nonsteroidal topical treatment.

Limitations

Differences across TCS formulations were unexplored.

Conclusion

TCS-related cutaneous adverse events were common. There is a desire from patients for novel steroid-free topical alternatives for CHE treatment.

Weak UVB Irradiation Promotes Macrophage M2 Polarization and Stabilizes Atherosclerosis

Atherosclerosis (AS) is a chronic cardiovascular disease endangering human health and is one of the most common causes of myocardial infarction and stroke. Macrophage polarization plays a vital role in regulating plaque stability. As an important component of sunlight, ultraviolet B (UVB) has been proven to promote vitamin D and nitric oxide synthesis. This research used an AS model in ApoE-/- mice to study the effects of UVB on macrophage polarization and atherosclerotic plaque stability. In vitro, UVB irradiation increased arginase-I (Arg-I, M2 macrophage) and macrophage mannose receptor (CD206) expression, while the expression of inducible nitric oxide synthase (iNOS) (M1 macrophage) and CD86 was decreased. UVB promoted Akt phosphorylation in vitro. In vivo, UVB irradiation promoted the stabilization of atherosclerotic lesion plaques, while the phenotype of M2 macrophages increased. Our research provides new evidence for UVB in preventing and treating atherosclerosis.

Occupational Dermatitis Treated with Alitretinoin

Occupational allergic contact dermatitis is an occupational skin condition which is characterized by a delayed cell-mediated hypersensitivity reaction triggered by one or more work-related substances. In this article, we describe a hairdresser who presented with occupational allergic contact dermatitis and was treated with alitretinoin. It is important to emphasize the value of early diagnosis and treatment of occupational contact dermatitis as this allows us to tackle the physical, psychosocial and cost-related burdens that this disorder brings.

The pan-JAK inhibitor delgocitinib in a cream formulation demonstrates dose-response in chronic hand eczema in a 16-week randomised phase 2b trial

BACKGROUND

Chronic hand eczema (CHE) is a burdensome disease, and new well-documented, safe, and efficacious treatments are warranted. In a recent CHE phase 2a trial, the pan-Janus kinase (JAK) inhibitor delgocitinib in an ointment formulation was found to be efficacious and well-tolerated.

OBJECTIVES

This trial assessed the dose-response, efficacy, and safety of delgocitinib cream in CHE.

METHODS

In this double-blind, phase 2b dose-ranging trial, adults with CHE and a recent history of inadequate response or contraindication to topical corticosteroids were randomised to delgocitinib cream 1, 3, 8, 20 mg/g or vehicle treatment twice daily for 16 weeks. Primary endpoint was Investigator's Global Assessment for CHE (IGA-CHE) treatment success (0 [clear] or 1 [almost clear] with a ≥2-point improvement from baseline to Week 16). Secondary endpoints were time to IGA-CHE treatment success and changes in Hand Eczema Severity Index (HECSI); other endpoints were itch and pain NRS scores, and Patient's Global Assessment (PaGA) at Week 16.

RESULTS

258 patients were randomised 1:1:1:1:1 to delgocitinib cream 1, 3, 8, 20 mg/g or vehicle. A significant dose-response relationship was established for IGA-CHE (p<0.025). IGA-CHE treatment success at Week 16 was achieved in 21.2% (1 mg/g), 7.8% (3 mg/g), 36.5% (8 mg/g), 37.7% (20 mg/g), and 8.0% (vehicle) of patients. Delgocitinib 8 and 20 mg/g showed a treatment effect against vehicle (p<0.001). Similarly, there were improvements in HECSI, itch and pain NRS scores, and PaGA. Delgocitinib cream was well-tolerated with majority of adverse events being mild or moderate and considered unrelated to treatment. Most frequently reported adverse events were nasopharyngitis (17.3%-29.4% in delgocitinib groups vs 40% in vehicle group), eczema (5.8%-11.3% in delgocitinib groups vs 16.0% in vehicle group) and headache (3.8%-11.5% in delgocitinib groups vs 4.0% in vehicle group).

CONCLUSIONS

In this trial, delgocitinib cream showed a dose-response relationship in terms of efficacy and was well-tolerated.

2020 Korean Consensus Guidelines for Diagnosis and Treatment of Chronic Hand Eczema

Background

Hand eczema refers to eczema located on the hands, regardless of its etiology or morphology. Despite its high prevalence and significant impact on patients' quality of life, treatment is frequently challenging because of its heterogeneity, chronic and recurrent course, and lack of well-organized randomized controlled trials of the various treatment options.

Objective

These consensus guidelines aim to provide evidence-based recommendations on the diagnosis and management of hand eczema to improve patient care by helping physicians make more efficient and transparent decisions.

Methods

A modified Delphi method, comprising two rounds of email questionnaires with face-to-face meetings in between, was adopted for the consensus process that took place between February and September 2020. Forty experts in the field of skin allergy and contact dermatitis were invited to participate in the expert panel.

Results

Consensus was reached for the domains of classification, diagnostic evaluation, and treatment; and a therapeutic ladder to manage chronic hand eczema was developed.

Conclusion

These are the first consensus guidelines for chronic hand eczema in the Asian population, which will help standardize care and assist clinical decision-making in the diagnosis and treatment of chronic hand eczema.

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.

Management of chronic hand and foot eczema. An Australia/New Zealand Clinical narrative

Chronic hand/foot eczemas are common, but treatment is often challenging, with widespread dissatisfaction over current available options. Detailed history is important, particularly with regard to potential exposure to irritants and allergens. Patch testing should be regarded as a standard investigation. Individual treatment outcomes and targets, including systemic therapy, should be discussed early with patients, restoring function being the primary goal, with clearing the skin a secondary outcome. Each new treatment, where appropriate, should be considered additive or overlapping to any previous therapy. Management extends beyond mere pharmacological or physical treatment, and requires an encompassing approach including removal or avoidance of causative factors, behavioural changes and social support. To date, there is little evidence to guide sequences or combinations of therapies. Moderately symptomatic patients (e.g. DLQI ≥ 10) should be started on a potent/super-potent topical corticosteroid applied once or twice per day for 4 weeks, with tapering to twice weekly application. If response is inadequate, consider phototherapy, and then a 12-week trial of a retinoid (alitretinoin or acitretin). Second line systemic treatments include methotrexate, ciclosporin and azathioprine. For patients presenting with severe symptomatic disease (DLQI ≥ 15), consider predniso(lo)ne 0.5-1.0 mg/kg/day (or ciclosporin 3 - 5 mg/kg/day) for 4-6 weeks with tapering, and then treating as for moderate disease as above. In non-responders, botulinum toxin and/or iontophoresis, if associated with hyperhidrosis, may sometimes help. Some patients only respond to long-term systemic corticosteroids. The data on sequencing of newer agents, such as dupilumab or JAK inhibitors, are immature.