ABSTRACT
Chronic itch, defined as an itching sensation that persists for more than 6 weeks, is a common complaint that is associated with a high burden of disease. Chronic itch can occur due to a variety of skin diseases, but can also feature as prominent symptom in various internal, neurologic, and psychiatric disorders. Importantly, chronic itch can be drug-related. Determining the underlying cause can be challenging, yet it is an essential step in the management of chronic itch. When generalized chronic itch presents with no primary skin lesions and/or secondary skin lesions, the diagnostic work-up should consist of a detailed history and physical examination with an initial limited screening of laboratory tests. Subsequent additional screening should be dictated by clinical suspicion. In 8% of patients, no underlying cause can be identified: pruritus of unknown origin. The management of chronic itch of unknown origin preferably follows a multimodal approach.
Subject(s)
Clinical Decision-Making , Clinical Laboratory Techniques , Medical History Taking , Physical Examination , Pruritus/diagnosis , Chronic Disease , Drug-Related Side Effects and Adverse Reactions/complications , Humans , Mental Disorders/complications , Nervous System Diseases/complications , Pruritus/etiology , Pruritus/therapy , Skin DiseasesABSTRACT
BACKGROUND: Chronic spontaneous urticaria (CSU) is a skin disease with itchy hives and/or angio-oedema that last for at least 6 weeks without an obvious external trigger. OBJECTIVES: To determine the cost-effectiveness of omalizumab relative to standard of care (SoC; up to four times the daily dose of H1 -antihistamines) in the Netherlands from a societal perspective. METHODS: The Markov model used consisted of five health states based on Urticaria Activity Score over 7 days. Model settings and characteristics of the Dutch patient population were based on an online survey among clinical experts and were validated during an expert committee meeting. Transition probabilities were derived from the GLACIAL trial. Healthcare consumption, quality of life (using EuroQol-5D) and productivity losses were derived from a burden-of-illness study (ASSURE-CSU) among 93 Dutch patients. Healthcare consumption and productivity losses were evaluated using the Dutch costing manual. The comparator treatment was SoC, consisting of (updosed) antihistamines. A 10-year time horizon was used. RESULTS: The incremental cost-effectiveness ratio (ICER) of omalizumab vs. SoC was 17 502 per quality-adjusted life-year (QALY) gained. Productivity costs played an important role in the value of the ICER; discarding productivity costs resulted in an ICER of 85 310 per QALY. CONCLUSIONS: Omalizumab is cost-effective compared with SoC. The outcomes of this study were used to establish omalizumab as third-line therapy in the Dutch treatment guidelines for CSU.
Subject(s)
Anti-Allergic Agents/administration & dosage , Cost-Benefit Analysis , Histamine H1 Antagonists/administration & dosage , Omalizumab/administration & dosage , Urticaria/drug therapy , Adult , Anti-Allergic Agents/economics , Chronic Disease/drug therapy , Chronic Disease/economics , Cost of Illness , Drug Therapy, Combination/economics , Drug Therapy, Combination/methods , Efficiency/drug effects , Health Care Costs/statistics & numerical data , Histamine H1 Antagonists/economics , Humans , Injections, Subcutaneous , Markov Chains , Models, Economic , Netherlands , Omalizumab/economics , Patient Acceptance of Health Care/statistics & numerical data , Quality of Life , Quality-Adjusted Life Years , Severity of Illness Index , Standard of Care/economics , Urticaria/diagnosis , Urticaria/economicsSubject(s)
Anti-Inflammatory Agents, Non-Steroidal/therapeutic use , Antibodies, Monoclonal/therapeutic use , Dermatologic Agents/therapeutic use , Psoriasis/drug therapy , Thalidomide/analogs & derivatives , Anti-Inflammatory Agents, Non-Steroidal/adverse effects , Antibodies, Monoclonal/adverse effects , Antibodies, Monoclonal, Humanized , Dermatologic Agents/adverse effects , Humans , Thalidomide/adverse effects , Thalidomide/therapeutic useABSTRACT
BACKGROUND: Fumaric acid esters (FAEs) are a systemic treatment for psoriasis considered to have a favourable long-term safety profile without an increased risk for immunosuppression. However, progressive multifocal leukoencephalopathy (PML), a rare, opportunistic viral infection of the central nervous system, has been linked anecdotally to FAE treatment. OBJECTIVE: To assess clinical features and outcomes of FAE-associated PML cases. METHODS: Systematic literature search in multiple databases up to 25th February 2016 for reports of PML in psoriasis patients treated with FAEs. RESULTS: Eight cases (four male, four female) of FAE-associated PML were identified. Median age was 64 years (range 42-74 years); median FAE treatment duration was 3 years (range 1.5-5 years). Six patients were treated with a formulation containing dimethyl fumarate (DMF) and monoethyl fumarates, and two patients with a DMF formulation. Patients exhibited neurological symptoms, such as aphasia, hemiparesis and dysarthria. PML diagnosis was based on MRI findings and presence of JC virus in cerebrospinal fluid and/or brain tissue. All cases were linked to moderate-to-severe reductions in absolute lymphocyte counts, with nadirs ranging from 200 to 792 cells per mm3 . Median exposure to lymphocytopenia was 2 years (range 1-5 years). In all cases, FAE treatment was discontinued; PML was treated with mefloquine plus mirtazapine. Three patients improved, two had stable disease, two had residual symptoms, and one patient died to an immune reconstitution inflammatory syndrome. CONCLUSION: Progressive multifocal leukoencephalopathy is infrequently linked to FAE treatment, but underreporting cannot be excluded. Physicians treating patients with FAEs should be vigilant for the occurrence of PML, and both clinicians and patients should be alert for onset of new neurological symptoms. Periodic monitoring of lymphocyte counts and FAE discontinuation in case of moderate-to-severe lymphocytopenia is recommended to minimize the risk for PML.
Subject(s)
Fumarates/therapeutic use , Leukoencephalopathy, Progressive Multifocal/chemically induced , Psoriasis/drug therapy , Adult , Aged , Female , Humans , Leukoencephalopathy, Progressive Multifocal/blood , Lymphocyte Count , Male , Middle Aged , Psoriasis/blood , Risk Factors , Treatment OutcomeABSTRACT
BACKGROUND: There are currently no independent data available comparing infliximab and etanercept for the treatment of psoriasis. OBJECTIVES: To compare these biologics without funding from pharmaceutical companies. METHODS: Overall, 50 patients were randomized to etanercept (n = 23) 50 mg subcutaneously twice weekly or infliximab (n = 25) 5 mg kg-1 intravenously at week 0, 2, 6, 14 and 22. After 24 weeks, 19 patients stopped and 22 continued treatment and were followed up to week 48. The primary outcome was ≥ 75% improvement of Psoriasis Area and Severity Index (PASI 75) at week 24. The secondary outcomes included PASI 75 at week 6 (onset of action) and week 12, Investigator's Global Assessment (IGA), Patient Global Assessment, impact on quality of life (Skindex-17 and SF-36), Treatment Satisfaction Questionnaire of Medication, duration of remission, maintenance treatment and safety. RESULTS: At week 24, PASI 75 was achieved in 72% (infliximab) vs. 35% (etanercept) (P = 0·01). The onset of action was achieved in 52% (infliximab) and 4% (etanercept). At week 12, 76% (infliximab) and 22% (etanercept) achieved PASI 75 (P < 0·001). At week 24, IGA 'clear or almost clear' was observed in 76% (infliximab) and 30% (etanercept) (P = 0·01). Skindex-17 symptom score was significantly better for infliximab. Maintenance treatment achieved PASI 75 for 67% (n = 6) infliximab vs. 50% (n = 5) etanercept, at week 48 (P = 0·65). Mild adverse events were reported in 76% (infliximab) vs. 66% (etanercept). CONCLUSIONS: Infliximab showed a rapid and significant higher level of efficacy until week 24 compared with etanercept. Long-term data showed no significant differences between both groups at week 48. Safety parameters were comparable.
Subject(s)
Dermatologic Agents/administration & dosage , Etanercept/administration & dosage , Infliximab/administration & dosage , Psoriasis/drug therapy , Adolescent , Adult , Aged , Chronic Disease , Drug Administration Schedule , Etanercept/adverse effects , Female , Humans , Infliximab/adverse effects , Injections, Subcutaneous , Male , Middle Aged , Patient Satisfaction , Prospective Studies , Quality of Life , Single-Blind Method , Treatment Outcome , Young AdultABSTRACT
Fumaric acid esters (FAEs) are increasingly used as a systemic treatment for psoriasis, but there are still uncertainties regarding their suitability. The objective of this systematic review was to assess the evidence for the efficacy and safety of FAEs in psoriasis treatment. A systematic literature search was performed in seven databases up to 17 August 2015. Inclusion criteria were studies that reported clinical effects of FAEs in patients with psoriasis without restrictions in study design, language or publication date. Methodological quality of randomized controlled trials (RCTs) and overall level of quality were assessed using the Cochrane risk of bias tool and the Grading of Recommendation, Assessment, Development and Evaluation approach, respectively. A total of 68 articles were included. There were seven RCTs (total 449 patients) that had an unclear risk of bias and were too clinically heterogeneous to allow a meta-analysis. Overall, mean Psoriasis Area and Severity Index decreased by 42-65% following 12-16 weeks of treatment. There were 37 observational studies (a total of 3457 patients) that supported the RCT findings, but most were uncontrolled with a high risk of bias. Commonly reported adverse events included gastrointestinal complaints and flushing, leading to treatment withdrawal in 6-40% of patients. Several case-reports described rare adverse events, such as renal Fanconi syndrome and progressive multifocal leukoencephalopathy. There was a lack of studies focusing on long-term use and comparisons with other treatments. This review concluded that there is low-quality evidence to recommend the use of oral FAEs to treat plaque psoriasis in adult patients. Studies focusing on long-term safety and comparison with systemic psoriasis treatments could lead to a better understanding of the role of FAEs as a treatment for psoriasis.
Subject(s)
Dermatologic Agents/therapeutic use , Fumarates/therapeutic use , Psoriasis/drug therapy , Fumarates/adverse effects , Humans , Observational Studies as Topic , Patient Safety , Randomized Controlled Trials as Topic , Treatment OutcomeABSTRACT
Fumarates or fumaric acid esters derivates (FAED) have appeared to be effective and less toxic than other systemic treatments for psoriasis. Due to its safe adverse event profile, FAED can be used as a long-term maintenance therapy. One of the greatest reasons why FAED are not preferred as a first-line treatment is that according to the recommended dosing schedule, clinically meaningful improvement is seen just after 6 to 8 weeks of therapy. In this manuscript, we suppose an alternative induction scheme with a combination therapy of fumarates and cyclosporine for a more rapid improvement and better compliance.
Subject(s)
Cyclosporine/administration & dosage , Drug Therapy, Combination/methods , Fumarates/administration & dosage , Psoriasis/drug therapy , Humans , Patient ComplianceSubject(s)
Anti-Inflammatory Agents, Non-Steroidal/therapeutic use , Immunosuppressive Agents/therapeutic use , Psoriasis/drug therapy , Acitretin/therapeutic use , Adalimumab/therapeutic use , Cyclosporine/therapeutic use , Drug Therapy, Combination , Etanercept/therapeutic use , Fumarates/therapeutic use , Humans , Keratolytic Agents/therapeutic use , Methotrexate/therapeutic use , Ustekinumab/therapeutic useSubject(s)
Caustics/administration & dosage , Formates/administration & dosage , Keratolytic Agents/administration & dosage , Keratosis, Seborrheic/drug therapy , Trichloroacetic Acid/administration & dosage , Administration, Cutaneous , Adolescent , Adult , Aged , Aged, 80 and over , Drug Combinations , Humans , Middle Aged , Treatment Outcome , Young AdultABSTRACT
BACKGROUND: Fumaric acid esters (FAEs) are considered an effective and safe long-term treatment for psoriasis. However, 30-40% of patients need to discontinue FAE treatment due to intolerable adverse events. OBJECTIVES: To assess whether the addition of cetirizine, an oral histamine-1 receptor antagonist, to FAEs would reduce the incidence of adverse events. METHODS: In a randomized, double-blind, placebo-controlled trial, patients with psoriasis with a Psoriasis Area and Severity Index ≥ 10 starting an FAE up to a dose of dimethylfumarate 720 mg per day were randomized 1 : 1 to receive either additional cetirizine 10 mg once daily (n = 25) or placebo (n = 25) for 12 weeks. Randomization and treatment allocation were done at our hospital trial pharmacy. Primary outcomes were the incidence of adverse events and the proportion of patients discontinuing treatment. RESULTS: Fifty patients (33 male, 17 female; median age 44 years) were enrolled. Addition of cetirizine did not reduce the incidence of adverse events compared with placebo (84% vs. 84%, P = 1·00). The types of adverse events were not different between the cetirizine and placebo groups, the most common being gastrointestinal complaints (68% vs. 64%) and flushes (60% vs. 48%). The proportion of patients discontinuing treatment was not statistically different between the cetirizine and placebo groups (24% vs. 32%, P = 0·53). CONCLUSIONS: Addition of oral cetirizine 10 mg once daily to FAE treatment did not reduce adverse events in patients with psoriasis during the first 12 weeks of treatment. The mechanisms underlying FAE-induced gastrointestinal and flushing symptoms likely involve mediators other than histamine.
Subject(s)
Cetirizine/administration & dosage , Dermatologic Agents/adverse effects , Fumarates/adverse effects , Histamine Antagonists/administration & dosage , Psoriasis/drug therapy , Administration, Oral , Adult , Double-Blind Method , Drug Therapy, Combination , Female , Humans , Male , Middle Aged , Treatment OutcomeABSTRACT
BACKGROUND: Fumaric acid esters (FAEs) are widely used in Europe for the treatment of psoriasis because of their clinical efficacy and favourable safety profile. However, the mechanisms of action by which FAEs improve psoriasis remain largely unknown. OBJECTIVES: To identify pathways and mechanisms affected by FAE treatment and to compare these with pathways affected by treatment with the antitumour necrosis factor (anti-TNF)-α biologic etanercept. METHODS: In a prospective cohort study, 50 patients with plaque psoriasis were treated with FAEs for 20 weeks. Nine patients were randomly selected for gene expression profiling of plaque biopsies from week 0 and week 12. The groups consisted of FAE responders [> Psoriasis Area and Severity Index (PASI)-75 improvement] and nonresponders (< PASI-50 improvement). Changes in gene expression profiles were analysed using Ingenuity Pathway Analysis (IPA) and the outcome was compared with gene expression affected by etanercept. RESULTS: Response to FAE treatment was associated with a ≥ 2-fold change (P < 0.05) in the expression of 458 genes. In FAE responders the role of interleukin-17A in the psoriasis pathway was most significantly activated. Glutathione and Nrf2 pathway molecules were specifically induced by FAE treatment and not by etanercept treatment, representing an FAE-specific effect in psoriatic skin. In addition, FAE treatment specifically induced the transcription factors PTTG1, NR3C1, GATA3 and NFκBIZ in responding patients. CONCLUSIONS: FAE treatment induces glutathione and Nrf2 pathway genes in lesional skin of patients with psoriasis. In responders, FAEs specifically regulate the transcription factors PTTG1, NR3C1, GATA3 and NFκBIZ, which are important in normal cutaneous development, and the T-helper (Th)2 and Th17 pathways, respectively.
Subject(s)
Dermatologic Agents/administration & dosage , Fumarates/administration & dosage , Genes, Regulator/drug effects , Psoriasis/genetics , Administration, Oral , Adult , Aged , Biological Factors/therapeutic use , Etanercept , Female , Gene Expression , Gene Expression Profiling , Humans , Immunoglobulin G/therapeutic use , Male , Middle Aged , Prospective Studies , Psoriasis/drug therapy , Receptors, Tumor Necrosis Factor/therapeutic use , Signal Transduction/drug effects , Tablets , Transcription Factors/drug effects , Young AdultABSTRACT
This document provides a summary of the Dutch S3-guidelines on the treatment of psoriasis. These guidelines were finalized in December 2011 and contain unique chapters on the treatment of psoriasis of the face and flexures, childhood psoriasis as well as the patient's perspective on treatment. They also cover the topical treatment of psoriasis, photo(chemo)therapy, conventional systemic therapy and biological therapy.
Subject(s)
Psoriasis/therapy , Adult , Anti-Inflammatory Agents/therapeutic use , Antibodies, Monoclonal/therapeutic use , Biological Products/therapeutic use , Child , Combined Modality Therapy , Contraindications , Drug Administration Routes , Drug Administration Schedule , Drug Interactions , Drug Therapy, Combination , Humans , Immunosuppressive Agents/therapeutic use , Netherlands , Patient Acceptance of Health Care , Psoriasis/drug therapy , Psoriasis/radiotherapy , Retinoids/therapeutic use , Ultraviolet Therapy/adverse effects , Ultraviolet Therapy/economicsABSTRACT
BACKGROUND: Psoriasis vulgaris is a T-cell mediated disease that affects 2-3% of the worldwide white-skinned population. Fumaric acid esters are mentioned as an effective therapy for moderate-to-severe psoriasis vulgaris in adult patients in the new guidelines for psoriasis treatment. OBJECTIVES: To obtain an insight into the use of fumaric acid esters by Dutch dermatologists in the Netherlands. METHODS: This was a cross-sectional postal survey. An anonymous survey was posted to all Dutch dermatologists. In this survey, data were collected on the extent of fumaric acid esters use, the reasons for use, the reasons for non- or limited use of fumaric acid esters, the perception of fumaric acid esters as a mono-therapy with regards to the effectiveness, the safety, the adverse events and the overall satisfaction of fumaric acid esters as a mono-therapy. RESULTS: Sixty-three per cent of the 300 responders indicated to prescribe fumaric acid esters for the treatment of psoriasis. About 37% of the dermatologists indicated (almost) never to prescribe it. Biologicals were considered as the most effective therapy. Fumaric acid esters were regarded as the safest therapy. They were generally well-tolerated by the patients similar to that for methotrexate according to the respondents. CONCLUSION: A large proportion of the dermatologists in our survey indicated to prescribe fumaric acid esters. It is considered to be effective, safe and without adverse events profile that is favourable in the practice, also as compared with other systemic therapies such as methotrexate and biologicals.
Subject(s)
Dermatology , Fumarates/therapeutic use , Practice Patterns, Physicians' , Psoriasis/drug therapy , Psoriasis/epidemiology , Biological Products/therapeutic use , Cross-Sectional Studies , Health Surveys , Humans , Methotrexate/therapeutic use , Netherlands/epidemiology , Severity of Illness Index , Treatment OutcomeABSTRACT
BACKGROUND: Fumaric acid esters (FAE) are used as an effective and safe oral treatment for plaque psoriasis in adult patients, but little is known about their efficacy and safety in children with psoriasis. OBJECTIVES: To assess the effectiveness and safety of FAE in the treatment of paediatric psoriasis. METHODS: This is a retrospective analysis of 14 paediatric patients with psoriasis (age <18 years) treated with FAE between 2004 and 2012 at several Dutch university and regional clinics. Patients were identified through databases or registries. RESULTS: The median age at the start of FAE treatment was 15 years (range 8-17 years). The median duration of FAE treatment was 10 months (range 1-80 months), and the median maintenance dosage per day was 360 mg dimethylfumarate (range 240-600 mg). Five patients (36%) achieved a complete clearance of their psoriasis, one patient (7%) had a good improvement, three patients (21%) had a partial response and five patients (36%) were nonresponders. FAE treatment was well tolerated, but two patients (14%) discontinued FAE, one with severe diarrhoea and one with flushes. Five patients (36%) had transient, slightly abnormal laboratory values of liver-function tests or leucocytes that did not necessitate FAE dosage reduction or treatment discontinuation. No serious adverse events occurred. CONCLUSIONS: In this retrospective case series FAE seemed to be an effective and safe treatment for children with psoriasis. FAE may be an attractive therapeutic alternative to the currently used systemic immunosuppressive agents for paediatric patients with psoriasis. Further studies are needed to evaluate the suitability of FAE in paediatric psoriasis.
Subject(s)
Fumarates/administration & dosage , Immunosuppressive Agents/administration & dosage , Psoriasis/drug therapy , Adolescent , Child , Dimethyl Fumarate , Female , Fumarates/adverse effects , Humans , Immunosuppressive Agents/adverse effects , Male , Netherlands , Retrospective Studies , Severity of Illness Index , Time Factors , Treatment OutcomeABSTRACT
The objective of this paper is to answer the clinical question whether the location of the lesion in an individual patient with actinic keratosis (AK) influences the absolute risk of the development of skin cancer. Between 0.025% and 16% of AK lesions advance towards squamous cell carcinoma per year. It is not well known whether this risk differs between locations on the body. A systematic search of available literature resulted in seven articles of which the two highest scoring on relevance and validity were selected. These two studies indicate that the absolute risk on the development of skin cancer in patients with AK differs between locations of the lesion and that time to progression from AK to squamous cell carcinoma is not different among the locations of the lesions. However, both studies have very limited sample sizes.
Subject(s)
Keratosis, Actinic/complications , Keratosis, Actinic/pathology , Skin Neoplasms/etiology , Aged , Humans , Male , Risk , Skin Neoplasms/epidemiologyABSTRACT
The skin-blanching assay is used for the determination and bioequivalence of dermatologic glucocorticoids (GCs). The exact mechanism of the production of blanching is not fully understood, but it is considered that local vasoconstriction of the skin microvasculature and the consequent blood-flow reduction cause this phenomenon. Several factors influence skin blanching, including drug concentration, duration of application, nature of vehicle, occlusion, posture and location. The intensity of vasoconstriction can be measured in several ways: visual or quantitative methods, such as reflectance spectroscopy, thermography, laser Doppler velocimetry and chromametry. In literature, contradicting results in the correlation of the skin-blanching assay with different tests to determine GC sensitivity have been reported, limiting its clinical usefulness.
Subject(s)
Glucocorticoids/pharmacology , Skin/drug effects , Glucocorticoids/administration & dosage , Glucocorticoids/pharmacokinetics , Humans , Skin/physiopathology , Therapeutic EquivalencyABSTRACT
BACKGROUND: The Dermatology Department of the University Medical Centre Utrecht, the Netherlands, developed an e-health portal for patients with atopic dermatitis (AD), consisting of e-consultation, a patient-tailored website, monitoring and self-management training. OBJECTIVES: To determine the cost-effectiveness of individualized e-health compared with usual face-to-face care for children and adults with AD. METHODS: A randomized controlled cost-effectiveness study from a societal perspective in adults and parents of children with moderate AD. Outcomes were quality of life, severity of AD, itching and direct and indirect costs. Data were collected at baseline and at 3 and 12 months after randomization. Linear mixed models were used to analyse clinical outcomes. After multiple imputation of missing data, costs and differences in costs were calculated over a period of 1 year. RESULTS: In total, 199 patients were included. There were no significant differences in disease-specific quality of life, severity of AD and intensity of itching between both groups at the three time points. The difference in direct costs between the intervention and control groups was 24 [95% confidence interval (CI) -360 to 383], whereas this difference was -618 (95% CI -2502 to 1143) for indirect costs. Overall, individual e-health was expected to save 594 (95% CI -2545 to 1227) per patient in the first year of treatment, mainly through a reduction in work absenteeism. Uncertainty analyses revealed that the probability of e-health reducing costs was estimated to be ≥ 73%. CONCLUSIONS: E-health during follow-up of patients with AD is, after initial diagnosis and treatment during face-to-face contact, just as effective as usual face-to-face care with regard to quality of life and severity of disease. However, when costs are considered, e-health is likely to result in substantial cost savings. Therefore, e-health is a valuable service for patients with AD.
Subject(s)
Dermatitis, Atopic/therapy , Internet/economics , Patient Education as Topic/methods , Self Care/methods , Adult , Child, Preschool , Cost Savings , Cost-Benefit Analysis , Dermatitis, Atopic/economics , Female , Humans , Male , Netherlands , Patient Education as Topic/economics , Pruritus/etiology , Quality of Life , Remote Consultation , Self Care/economics , Treatment OutcomeABSTRACT
BACKGROUND: Methotrexate and fumarates are effective systemic therapies for moderate to severe psoriasis according to the European S3 guidelines. OBJECTIVES: We conducted a randomized controlled trial comparing the effectiveness and the adverse events of methotrexate and fumarates. METHODS: Sixty patients with moderate to severe psoriasis vulgaris were randomly assigned to treatment for 16 weeks with either methotrexate (30 patients; 15 mg per week) or fumarates (30 patients; 30 mg, followed by 120 mg according to a standard progressive dosage regimen) and were followed up for 4 weeks. The primary endpoint with respect to the efficacy was the difference in mean change from baseline in Psoriasis Area and Severity Index (PASI) after 12 weeks of treatment. The study was powered to detect a difference of five points. Analyses were by intention to treat. RESULTS: Six patients were excluded because five were not eligible and one withdrew consent. Two patients in the methotrexate group and one in the fumarate group dropped out during the 12 weeks of treatment because of nonappearance at the outpatient clinic. In total, 25 patients in the methotrexate group and 26 in the fumarate group were evaluated in the primary analysis. After 12 weeks of treatment, the mean ± SD PASI decreased from 14·5 ± 3·0 at baseline to 6·7 ± 4·5 in the 25 patients treated with methotrexate, whereas it decreased from 18·1 ± 7·0 to 10·5 ± 6·7 in the 26 patients treated with fumarates. After adjustment for baseline values, the absolute difference (fumarates minus methotrexate) in the mean values at 12 weeks was 1·4 (95% confidence interval -2·0 to 4·7; P = 0·417). CONCLUSIONS: In this randomized trial methotrexate and fumarates were found to be equally effective in the treatment of patients with moderate to severe psoriasis. No serious or irreversible adverse events were observed in any of the patients.