The Hidden Costs of Psoriasis: A Population-Based Study Evaluating How Psoriasis Severity Impacts Work Absenteeism.

BACKGROUND: Psoriasis patients experience physical and emotional burdens, which may lead to work-related productivity loss. This loss carries professional and financial repercussions. It is unknown whether the extent of psoriasis affects work absenteeism. OBJECTIVE: This study aims to compare work absenteeism between employed adults with mild versus moderate-to-severe psoriasis. METHODS: A national, cross-sectional study using the 2009 to 2019 Medical Expenditure Panel Survey evaluated 5,209,956 (weighted) adults aged ≥ 22 years. Work absenteeism was compared between adults with mild (4,521,687 weighted) and moderate-to-severe psoriasis (688,269 weighted). RESULTS: Work absenteeism, as measured by the average number of episodes per year that someone was absent from work for at least a half day, was significantly higher in patients with moderate-to-severe psoriasis than in patients with mild disease (4.4 episodes vs 2.8 episodes, P=0.002). Multivariable logistic regression models showed moderate-to-severe patients were 2.68 times more likely (95% CI:1.72-4.21; P<0.001) to take a half-day or more off from work than those with mild disease after adjusting for age, sex, race, ethnicity, poverty, cognitive limitations, insurance, education, and comorbidities. CONCLUSION: Disease severity directly impacts work absenteeism in psoriasis patients. Early diagnosis and treatment with appropriate therapies are needed to reduce disease severity and limit economic loss and professional ramifications associated with psoriasis. J Drugs Dermatol. 2024;23(8):640-644.  doi:10.36849/JDD.7550.

[Epidemioloical characteristics and economic burden analysis of palmoplantar pustulosis in urban areas of China].

Objective: To analyze the epidemiological characteristics and economic burden of palmoplantar pustulosis (PPP) in China. Methods: A population-based retrospective study was conducted using the data from China's Urban Basic Medical Insurance data from January 1, 2012, to December 31, 2016. International Classification of Diseases code and diagnoses in Chinese for PPP were used to identify cases and estimate the prevalence, incidence, and cost. Subgroup analyses were performed according to age and sex, and sensitivity analyses were conducted to evaluate the robustness of the results. Age-adjusted prevalence rates were calculated based on the 2010 national census data. Results: The crude prevalence and incidence rate of PPP in 2016 were 2.730/100 000 (95%CI: 2.218/100 000-3.242/100 000) and 1.556/100 000 (95%CI: 1.154/100 000-1.958/100 000), and the prevalence rate of females (2.910/100 000) was higher than that of males (2.490/100 000, χ2=97.48, P=0.001). The incidence rate of females (1.745/100 000) was also higher than that of males (1.418/100 000, χ2=85.02, P=0.001). The age peak of incidence and prevalence of patients with PPP was in the 30-39-year age group and a small peak existed in the 0-3-year age group among people under 20 years old. From 2012 to 2016, the average number of visits was (2.44±0.04) per patient, and the total per-capita cost per year was (982.40±39.19) yuan. Conclusion: In 2016, the prevalence and incidence rate of PPP in China were higher in females than in males, and the highest age peak was in the 30-39-year age group.

Dermatologists' Perspectives on Defining Moderate Psoriasis: The Canadian Moderate Psoriasis Survey.

BACKGROUND: Psoriasis is commonly classified as either mild or moderate to severe, without specific parameters to differentiate moderate versus severe disease. This may lead to patients with moderate psoriasis being underrecognized and undertreated. OBJECTIVE: An online survey was conducted to assess Canadian dermatologists’ perspectives on the definition and treatment of psoriasis. METHOD: Dermatologists included in the survey were regional and national leaders with expertise in psoriasis. Questions were developed based on feedback from a steering committee of Canadian dermatologists. RESULTS: Of 88 dermatologists contacted, 69 responded; 42.0% were in practice for >20 years. Most dermatologists reported using the percentage of psoriasis-affected body surface area (BSA) to describe disease severity (90.8% for moderate and 87.5% for severe psoriasis). The lower and upper median cutoffs for moderate psoriasis were reported as 5.0% and 10.0% for BSA and 7.0 and 11.5 for the Dermatology Life Quality Index. Most dermatologists also consider psoriasis location (eg, palms, scalp, genital area, face) as an important indicator of disease severity. The majority of Canadian dermatologists (87.5%) identified access to treatment as one of the biggest challenges for patients with moderate psoriasis. Most dermatologists estimated that ≤40% of their patients with moderate plaque psoriasis were being treated with traditional oral systemics, targeted oral systemics, or biologics. CONCLUSIONS: This is the first survey of Canadian dermatologists on moderate psoriasis. Efforts are needed to implement a clinically useful definition of moderate plaque psoriasis to improve patient care and to raise awareness of the definition among regulatory agencies and reimbursement authorities. J Drugs Dermatol. 2021;20(2):126-132. doi:10.36849/JDD.5531.

Real-world biologic and apremilast treatment patterns and healthcare costs in moderate-to-severe plaque psoriasis.

Plaque psoriasis is a chronic disease requiring long-term therapy. However, long-term real-world treatment patterns and costs are not well characterized. This study examined treatment patterns and healthcare costs among patients newly initiating a biologic or apremilast for moderate-to-severe plaque psoriasis. Included patients had ?1 prescription for secukinumab, ixekizumab, adalimumab, ustekinumab, etanercept, or apremilast between 01/01/2015 and 08/31/2018, no prior use of the index medication, and continuous enrolment 12 months pre-index and 24 months post-index. Treatment adherence, non-persistence, discontinuation, switching, use of combination therapy, and re-initiation were assessed at 12, 18, and 24 -months post-index. In addition, total and psoriasis-related healthcare costs were evaluated at 24 months. A total of 7,773 patients with 24-month follow-up were included. Overall, adherence was low (21.3%-33.5%) and non-persistence was high (58.4%-86.5%) over 24 months. Discontinuation (38.4%-51.3%), switching (29.7%-52.6%), combination therapy (27.6%-42.9%), and re-initiation of the index medication (19.3%-44.5%) were common. Healthcare costs were high and mostly contributed by psoriasis treatment. Therefore, maintaining disease control on long-term therapy is still challenging for many patients.

Where you live matters: Regional differences in health care resource use for psoriasis in the United States.

BACKGROUND: It is unknown which U.S. Census region offers the best access to health care resources. OBJECTIVE: To compare health care resource use and costs for patients with psoriasis among the 4 U.S. Census regions. METHODS: Cross-sectional study using the 1996-2015 Medical Expenditure Panel Survey. RESULTS: In the United States the greatest access for biologic medications was in the South (9.1% receiving biologic medications/year), followed by the Northeast (7.4%), the West (6.8%), and the Midwest (5.2%). Ambulatory visits per patient per year were highest in the West (5.02), followed by the Northeast (3.81), the South (2.95), and the Midwest (2.84). The proportion of patients with ≥1 emergency department (ED) visits was highest in the Northeast (2.73%), followed by the West (2.17%), the South (1.19%), and the Midwest (1.17%). Compared with the remainder of the country, the West incurred the lowest total health care costs (P = .035) and the lowest drug costs (P = .023); and the Northeast incurred the highest total health care costs (P = .050) and the highest ambulatory costs (P < .001). Although the South had the greatest proportion of patients using biologic medications (9.1% vs 6.4%, P = .045), it also had 30% fewer ambulatory visits per patient per year and a 39% lower proportion of ED visits for psoriasis. LIMITATIONS: Data for psoriasis severity were unavailable. CONCLUSIONS: Southern U.S. states have the greatest access to biologic medications and incurred fewer ambulatory and ED visits. The Midwest had the lowest access to biologic medications and ambulatory and ED care. The West incurred the lowest total health care costs, while the Northeast incurred the highest total health care costs.

Predictors of hospital readmission in United States adults with psoriasis.

BACKGROUND: Previous studies showed a large inpatient burden of psoriasis in the United States. Less is known about the hospital readmission for psoriasis. OBJECTIVES: To determine the patterns and predictors of hospital readmission rates for psoriasis. METHODS: We analyzed data from the 2012-2014 Nationwide Readmissions Database, a representative sample of hospital readmissions in the United States. RESULTS: Among 2606 admissions for psoriasis, 216 had ≥1 readmissions for psoriasis (prevalence [95% confidence interval]: 8.3% [6.6%-10.0%]) and 918 for all-causes (35.2% [32.2%-38.3%]). The mean annual cost of first readmission for any reason was $3,500,141, with $8,357,961 for subsequent readmissions. In multivariable regression models, readmission for psoriasis was associated with ≥6 day-long index hospitalization (adjusted hazard ratio [95% confidence interval]: 1.82 [1.06-3.12]), teaching hospital (1.93 [1.13-3.31]), comorbid skin infection (2.13 [1.11-4.08]), and hospitalization in the autumn (4.51 [2.54-8.00]), but inversely associated with other infections (0.49 [0.26-0.92]). Readmissions for psoriasis increased from 2012 to 2014 (1.93 [1.26-2.93]). LIMITATIONS: No data on psoriasis characteristics. CONCLUSION: Inpatients with psoriasis had high rates of readmission overall but low rates of readmission for psoriasis per se. A subset of psoriasis patients was hospitalized repeatedly and responsible for most inpatients costs. Future interventions are needed to lower readmission rates among psoriasis patients.

Phototherapy achieves significant cost savings by the delay of drug-based treatment in psoriasis.

BACKGROUND: Although used for decades in psoriasis, access to phototherapy is becoming increasingly restricted. Besides patient inconvenience, this is in large part to do with a perception of "high cost." We previously reported a comprehensive analysis of direct and indirect phototherapy treatment cost. However, no robust data exist on the actual savings associated with providing phototherapy in the treatment pathway. OBJECTIVES: To quantify the cost savings achieved by phototherapy by delaying alternative treatments. METHODS: Costs accruing through the UK-wide established treatment pathway with and without phototherapy were analysed. Direct and indirectly incurred drug treatment costs were calculated using drug tariff, laboratory cost, estate rates and clinic review costs. To enhance reliability, ranges of cost scenarios were calculated by varying parameters such as drug dosing. RESULTS: Medium annual cost savings per patient were £2200 [range: £1800-£2900] for NB-UVB, and £3700 [range: £2500-£5300] if both NB-UVB and PUVA courses were administered, respectively. As the provider treated 656 ± 76 patients per year during the 6-year observational window, this amounted to savings of £Mio 2.4 [range: £Mio 1.6-£Mio 3.4], even excluding additional non-modelled drug-associated costs (eg diagnostics, adverse event management). Since we only consider cost savings by delay of drug treatment for the duration of phototherapy, drug price reductions through biosimilar introduction only have a small effect. We provide spreadsheets allowing adaptation cost savings projections by varying input variables. CONCLUSIONS: Healthcare providers may achieve significant cost savings by implementing and/or widening access to phototherapy.

Therapies for Psoriasis: Clinical and Economic Comparisons.

BACKGROUND: Clinical and economic comparisons of therapies for plaque psoriasis are regularly updated following each new devel- opment in the field. With the recent availability of a novel accessory (Multi Micro DoseTM [MMD®] tip) for the 308nm excimer laser (XTRAC®, Strata Skin Sciences, Horsham, PA), which can determine and deliver an optimal therapeutic dose (OTDTM) of ultraviolet-B light in an improved protocol, the need for comparative health-economic assessment recurs. To this end, a comprehensive evaluation of treatment-related costs was undertaken from the payer perspective. Results show that outcomes are influenced by many factors; most importantly, the severity and extent of disease, treatment selection, and patient preference, as well as compliance, adherence, and persistence with care. Among study comparators, the 308nm excimer laser – XTRAC – with its latest MMD enhancement, is safe and delivers incremental clinical benefits with the potential for significant cost savings. These benefits are particularly relevant today in the context of SARS-CoV-2 virus and the COVid-19 pandemic. J Drugs Dermatol. 2020;19(11):1101-1108. doi:10.36849/JDD.2020.5510.

Fixed Combination Calcipotriene and Betamethasone Dipropionate (Cal/BD) Foam for Beyond-Mild Psoriasis: A Possible Alternative to Systemic Medication.

Calcipotriene 0.005% plus betamethasone dipropionate 0.064% (Cal/BD) aerosol foam is a topical agent indicated for the treatment of plaque psoriasis. While topical treatments are typically reserved for milder disease, in clinical trials with Cal/BD foam, the vast majority of patients had beyond-mild psoriasis at baseline, and multiple studies (including subgroup analyses from randomized controlled trials and other small-scale studies) have demonstrated favorable outcomes with the use of Cal/BD foam in this population. The objective of this article is to review existing data on the efficacy, safety, and cost-effectiveness of Cal/BD foam used in patients with beyond-mild psoriasis, either alone as topical monotherapy or as adjunctive therapy. Practical recommendations for managing beyond-mild psoriasis with Cal/BD foam are also provided. J Drugs Dermatol. 2020;19(8): doi:10.36849/JDD.2020.5300.

Real-World Experience With Apremilast in the Treatment of Adults With Moderate to Severe Plaque Psoriasis in Québec: A Claims-Based Analysis of Drug Utilization and Healthcare Resource Utilization.

BACKGROUND: In Québec, targeted biologic therapies for moderate to severe plaque psoriasis are restricted to patients who have not responded to phototherapy or conventional systemic treatment, primarily due to high drug costs. Apremilast, an oral treatment for plaque psoriasis, was added to the Québec provincial health insurance plan (Régie de l'assurance maladie du Québec; RAMQ) formulary in 2015, making this the only province in Canada with public drug plan reimbursement for apremilast. OBJECTIVES: The aim of this study is to describe patients' characteristics, treatment patterns, healthcare resource utilization (HCRU), and associated costs and to measure real-world budget impact of using apremilast before biologics in plaque psoriasis. METHODS: This study was performed using RAMQ drug claims and medical services data. Patients diagnosed with psoriasis between January 2015 and December 2017 were identified. Medical services and prescription claims were categorized as all-cause and psoriasis-related. Using RAMQ database estimates, a 3-year budget impact analysis was developed comparing treatment cost with and without the addition of apremilast to the formulary. RESULTS: In all, 540 patients were identified (apremilast: n = 92; biologics: n = 448). Comorbidity burden and treatment persistence and adherence were comparable between apremilast and biologic users. The year following the index date, all-cause HCRU was lower for apremilast versus biologic users (CAN$19 763 vs CAN$28 025; P < .01), mainly driven by drug cost. Using apremilast before biologics resulted in an estimated RAMQ net savings of CAN$49 290 (2015), CAN$746 856 (2016), and CAN$1 216 512 (2017), and a total savings of CAN$2 012 658 since apremilast's addition to the formulary. CONCLUSION: Adding apremilast to the drug formulary of other Canadian provinces could result in significant healthcare savings.

Study on the Impact of Psoriasis on Quality of Life: Psychological, Social and Financial Implications.

BACKGROUND: Psoriasis is a chronic and stigmatising disease with significant and hard to meet clinical needs in patient management. Psoriasis is a relatively common disease, affecting up to 2% of the population. The impact of psoriasis on quality of life is significant given its chronicity and visibility. Psychological stress is a well-established systemic triggering factor in psoriasis. It has been associated with initial presentation of the disease as well as exacerbations of pre-existing psoriasis. The purpose of this study is to assess the psychological, social and financial implications of psoriasis. SUBJECTS AND METHODS: 51 patients participated in this study. After dermatological examination and determination of Psoriasis Area and Severity Index score, patients were referred to a psychological consult. Assessment was done through questionnaires concerning quality of life, depression, anxiety, illness perception, financial domain and personal data. RESULTS: Results of our study indicate that psoriasis has a strong impact on patients' life. It influences working habits, poses a significant financial burden, but most of all, significantly impairs their quality of life and psychological status. CONCLUSION: Psoriasis poses a substantial threat to several dimensions in patient's quality of life. Patients feel that the current treatment, although often effective, does not provide a satisfactory long-term solution. Thus, long-term psychologic support for patients with psoriasis is desirable.

Socioeconomic Costs and Health Inequalities from Psoriasis: A Cohort Study.

BACKGROUND: To date, there are no nationwide studies of the social and economic burden of psoriasis to patients in Denmark. Incentives for health care management based on patient-related outcomes and value (IMPROVE) in psoriasis and psoriatic arthritis is a project aimed at assisting movement from activity-based to outcome-based health care management. One of the key objectives in IMPROVE is to describe the disease-associated socioeconomic burden of psoriasis. METHODS: A case-matched study of the impact of psoriasis on patients' income, employment and health care costs in Denmark was performed. The IMPROVE study was a retrospective analysis of patients with a hospital diagnosis of psoriasis identified from the Danish National Patient Registry (NPR). In total, 13,025 psoriasis patients and 25,629 matched controls were identified from the NPR. Data from psoriasis patients and matched controls were compared for social and economic factors including income, employment, health care costs and risk of comorbidities. RESULTS: Psoriasis was associated with increased health care costs (mean annual costs +116% compared to control, p < 0.001), peaking in the year of referral to hospital for psoriasis and sustained thereafter. Both direct and indirect costs were significantly higher for patients with psoriasis than controls (p < 0.001). In the years before and immediately following hospital diagnosis, the rates of employment were lower in psoriasis patients than controls. Comorbidities, including cardiovascular (odds ratio 1.93 [95% CI 1.77-2.09]) and psychiatric conditions (odds ratio 2.61 [95% CI 2.30-2.97]), were more prevalent in patients with psoriasis than controls. CONCLUSION: In Denmark, psoriasis has a significant impact on health care costs, income and employment, and is associated with a range of comorbidities.

Association of Psoriasis with Psychiatric Hospitalization in United States Children and Adults.

BACKGROUND: Psoriasis is associated with psychosocial distress. Little is known about the relationship between psoriasis and mental health (MH) emergencies. OBJECTIVE: To examine the associations of psoriasis and MH hospitalizations in the USA. METHODS: Data from the 2002-2012 National Inpatient Sample were analyzed, including an approximately 20% sample of all US hospitalizations (n = 87,053,155 children and adults). RESULTS: Hospitalization for MH disorders occurred more commonly in those with psoriasis compared to those without psoriasis (4.04 vs. 2.21%). In multivariable logistic regression models, psoriasis was associated with higher odds of admission for any MH disorder overall (adjusted odds ratio [95% confidence interval]: 2.32 [2.24-2.41]), as well as 9 of the 15 MH-specific disorders examined. Associated MH disorders included: anxiety, schizophrenia, personality disorder, depression, substance use disorders, history of MH disorder, alcohol-related disorders, adjustment disorders, and cognitive disorders. Children with versus those without psoriasis were also more likely to have a primary hospitalization for any MH disorder (2.82 [2.24-3.56]). Psoriasis inpatients were also more likely to have a primary hospitalization for any MH disorder compared to those with alopecia areata (1.99 [1.45-2.74]) or hidradenitis suppurativa (3.97 [3.49-4.52]). Psoriasis patients hospitalized with any MH disorder had higher mean [95% confidence interval] cost of inpatient care (USD 11,004 [10,846-11,241] vs. 9,547 [8,730-10,364]; p < 0.0001) compared to those without psoriasis, with USD 1,610,860 excess costs annually, with the majority of the costs coming from depression and mood disorders. CONCLUSIONS: Children and adults with psoriasis had increased hospitalization for multiple MH disorders, which were associated with a considerable financial burden.

A Cost-utility Analysis of Calcipotriol/Betamethasone Dipropionate Aerosol Foam versus Ointment for the Topical Treatment of Psoriasis Vulgaris in Sweden.

Psoriasis is a chronic inflammatory disorder that imposes a substantial economic burden. We conducted a cost-utility analysis from a Swedish healthcare payers perspective using a decision-tree model with a 12-week time horizon. Patients with psoriasis vulgaris could have two 4-week cycles of topical treatment with calcipotriol 50 µg/g and betamethasone 0.5 mg/g as dipropionate (Cal/BD) foam or Cal/BD ointment before progressing to phototherapy/methotrexate. In the base-case analysis, Cal/BD foam dominated over Cal/BD ointment. The increased efficacy of Cal/BD foam resulted in fewer consultations and a decreased risk of progressing to phototherapy/methotrexate. Although Cal/BD foam costs more than Cal/BD ointment, this was offset by lower costs for phototherapy/methotrexate or consultation visits. Sensitivity analyses revealed that the base-case net monetary benefit was robust to plausible variations in key parameters. In conclusion, Cal/BD foam was predicted to be more cost-effective than Cal/BD ointment in the treatment of psoriasis vulgaris.

Narrowband ultraviolet B phototherapy improves quality of life of psoriasis and atopic dermatitis patients up to 3 months: Results from an observational multicenter study.

BACKGROUND/PURPOSE: Narrowband UVB phototherapy is a common treatment modality in psoriasis and atopic dermatitis, but evidence of its actual effect in clinical setting is sparse. Our aim was to assess the effectiveness and costs of narrowband UVB phototherapy in psoriasis and atopic dermatitis in clinical setting. METHODS: We observed 207 psoriasis patients and 144 atopic dermatitis patients in eight centers. SAPASI, PO-SCORAD, and VAS measures were used at baseline, at the end, and 3 months after the narrowband UVB phototherapy course. Quality of life was measured using Dermatology Life Quality Index (DLQI), and costs were assessed using a questionnaire. RESULTS: In both psoriasis and atopic dermatitis, the DLQI and Self-Administrated PASI (SAPASI)/Patient-Oriented SCORAD (PO-SCORAD) improved significantly and the results remained improved for at least 3 months in both groups. Alleviation of pruritus correlated with better quality of life in both patient groups. We reported slight redness and burning side effects which were due to lack of MED testing. Self-administered tools proved to be useful in evaluating pruritus and severity of the disease in psoriasis and atopic dermatitis. Mean patient costs were 310 € and 21 hours of time, and mean costs for the healthcare provider were 810 €. CONCLUSION: In psoriasis, narrowband UVB is a very efficient treatment in clinical setting, whereas in atopic dermatitis, more studies are needed to determine the best dosage.

Expert consensus on the persistence of biological treatments in moderate-to-severe psoriasis.

BACKGROUND: Treatment persistence is becoming a useful measure to evaluate long-term effectiveness and safety of biological therapies in real-world settings. OBJECTIVE: The main objective of this study was to explore the scientific opinion of a panel of dermatologists and hospital pharmacists to reach a consensus about the impact, causes, and best strategies and interventions that might be associated with improved drug persistence in patients with psoriasis in Spain. METHODS: This research was conducted using a modified Delphi method organized in two rounds and involving a panel of 90 dermatologists and 34 hospital pharmacists. A questionnaire of 70 items was developed. The items proposed to reach a consensus included topics such as definitions and measures in the treatment of psoriasis, analysis of treatment persistence, factors that may influence treatment persistence, impact of treatment persistence and economic cost of treatment. RESULTS: Dermatologists reached a consensus on 77.1% of the items proposed, and hospital pharmacists reached a consensus on 71.4%. Both groups agreed that it is important to use standardized measures in the evaluation of treatment maintenance over time. Dermatologists agreed that treatment survival, persistence and retention are synonymous, but hospital pharmacists considered only treatment persistence as a valid term. In addition, panelists agreed that drug persistence is an indicator of success in the treatment of psoriasis that may be influenced by a drug's effectiveness and safety profile, as well as by patient satisfaction. They agreed that the different causes of treatment discontinuation should be considered in Kaplan-Meier analysis of treatment persistence. Moreover, treatment persistence was agreed to decrease the cost of therapy. CONCLUSION: This Delphi consensus highlights the different perspectives of dermatologists and hospital pharmacists regarding the interpretation of treatment persistence, and the challenge of harmonizing the results obtained.

Biologic treatment sequences for plaque psoriasis: a cost-utility analysis based on 10 years of Dutch real-world evidence from BioCAPTURE.

BACKGROUND: Treatment with biologics may be indicated for patients with moderate-to-severe plaque psoriasis, but comparative evidence on cost-effectiveness is limited. Switching of biologics is common, but it is unclear what the effect is of differences in sequences of biologics. OBJECTIVES: To evaluate the cost-effectiveness of different biologic treatment sequences for psoriasis based on real-world evidence. PATIENTS AND METHODS: A sequence model was developed to evaluate the costs and health effects of three consecutive lines of biologic treatments [for example adalimumab-etanercept-ustekinumab (Ada-Eta-Ust) vs. Eta-Ust-Ada] over a 10-year time horizon in the Netherlands. The model was populated with data from the Dutch BioCAPTURE registry and scientific literature. Analyses were conducted of cost per quality-adjusted life year (QALY) and uncertainty was addressed by probabilistic as well as scenario analyses. RESULTS: Treatment of psoriasis with biologics for a 10-year period was estimated to be associated with a cost of €141 962 to €148 442 per patient depending on the treatment sequence used. Cumulative health effects ranged from 7·79 to 8·03 QALYs. Starting with Ada or Ust seems favourable concerning cost and utilities compared with strategies starting with Eta, although credible intervals were partly overlapping. CONCLUSIONS: The order in which biologics are used influences treatment cost-effectiveness, both in terms of costs and health effects. Initiation of a biologic treatment sequence for psoriasis might best be done with Ada or Ust; Eta seems less optimal from a health-economic perspective.

Narrowband ultraviolet B treatment for psoriasis is highly economical and causes significant savings in cost for topical treatments.

BACKGROUND: Narrowband ultraviolet B (NB-UVB) treatment for psoriasis is considered expensive. However, existing data are based on estimates and do not consider indirect cost savings. OBJECTIVES: To define the actual costs of NB-UVB incurred by the service provider, as well as treatment-associated cost savings. METHODS: We performed data linkage of (i) comprehensive treatment records and (ii) prescribing data for all NB-UVB treatment episodes spanning 6 years in a population of 420 000. We minimized data fluctuation by compiling data from four independent treatment sites, and using drug prescriptions unrelated to psoriasis as a negative control. RESULTS: National Health Service Tayside spent an average of £257 per NB-UVB treatment course (mean 257 ± 63, range 150-286, across four independent treatment sites), contrasting sharply with the estimate of £1882 used by the U.K. National Institute for Health and Care Excellence. The cost of topical treatments averaged £128 per patient in the 12 months prior to NB-UVB, accounting for 42% of the overall drug costs incurred by these patients. This was reduced by 40% to £53 per patient over the 12-month period following NB-UVB treatment, while psoriasis-unrelated drug prescription remained unchanged, suggesting disease-specific effects of NB-UVB. The data were not due to site-specific factors, as confirmed by highly similar results observed between treatment sites operated by distinct staff. Finally, we detail all staff hours directly and indirectly involved in treatment, allowing direct translation of cost into other healthcare systems. CONCLUSIONS: NB-UVB is a low-cost treatment; cost figures currently used in health technology appraisals are an overestimate based on the data presented here. Creating or extending access to NB-UVB is likely to offer additional savings by delaying or avoiding costly third-line treatments for many patients.

The burden of atopic dermatitis in US adults: Health care resource utilization data from the 2013 National Health and Wellness Survey.

BACKGROUND: There is a lack of data on the burden of atopic dermatitis (AD) in adults relative to the general population. OBJECTIVE: To characterize the AD burden in adult patients relative to both matched non-AD controls and matched patients with psoriasis in terms of comorbidities, health care resource utilization (HCRU), and costs. METHODS: Adults (≥18 years) who self-reported a diagnosis of AD or psoriasis and adult non-AD controls were identified from the 2013 US National Health and Wellness Survey. Patients with AD were propensity score-matched with non-AD controls and patients with psoriasis on demographic variables. Patient-reported outcomes were analyzed between matched cohorts. RESULTS: Patients with AD had a significantly greater risk for atopic comorbidities, as well as significantly greater HCRU and total cost compared with non-AD controls. The burden of AD was generally comparable to that of psoriasis, although patients with AD reported increased use of emergency room visits compared with patients with psoriasis. LIMITATIONS: Patient-reported data are susceptible to recall bias and erroneous classification. CONCLUSIONS: Adult patients with AD reported a substantial disease burden, suggesting an unmet need for more effective AD treatment options.