Cost-effectiveness of omalizumab for the treatment of chronic spontaneous urticaria.

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.

Cost Utility of Omalizumab Compared with Standard of Care for the Treatment of Chronic Spontaneous Urticaria.

BACKGROUND: Chronic spontaneous urticaria (CSU) negatively impacts patient quality of life and productivity and is associated with considerable indirect costs to society. OBJECTIVE: The aim of this study was to assess the cost utility of add-on omalizumab treatment compared with standard of care (SOC) in moderate or severe CSU patients with inadequate response to SOC, from the UK societal perspective. METHODS: A Markov model was developed, consisting of health states based on Urticaria Activity Score over 7 days (UAS7) and additional states for relapse, spontaneous remission and death. Model cycle length was 4 weeks, and total model time horizon was 20 years in the base case. The model considered early discontinuation of non-responders (response: UAS7 ≤6) and retreatment upon relapse (relapse: UAS7 ≥16) for responders. Clinical and cost inputs were derived from omalizumab trials and published sources, and cost utility was expressed as incremental cost-effectiveness ratios (ICERs). Scenario analyses included no early discontinuation of non-responders and an altered definition of response (UAS7 <16). RESULTS: With a deterministic ICER of £3183 in the base case, omalizumab was associated with increased costs and benefits relative to SOC. Probabilistic sensitivity analysis supported this result. Productivity inputs were key model drivers, and individual scenarios without early discontinuation of non-responders and adjusted response definitions had little impact on results. ICERs were generally robust to changes in key model parameters and inputs. CONCLUSIONS: In this, the first economic evaluation of omalizumab in CSU from a UK societal perspective, omalizumab consistently represented a treatment option with societal benefit for CSU in the UK across a range of scenarios.

Comparison of efficacy, safety, and cost-effectiveness of montelukast-levocetirizine and montelukast-fexofenadine in patients of allergic rhinitis: A randomized, double-blind clinical trial.

OBJECTIVES: Allergic rhinitis (AR) is a global health problem. Almost 10%-25% of population worldwide is affected by AR. Oral/intranasal H1-antihistamine, decongestants, leukotriene receptor antagonists, and intranasal corticosteroids are the pillars in the management of AR. The combination therapy of montelukast with antihistaminic provides enhancing and complimentary effects, thereby reducing the symptoms effectively, but there are scanty data regarding the comparisons of combinations. Therefore, we aimed to compare the efficacy, safety, and cost-effectiveness of montelukast-levocetirizine and montelukast-fexofenadine combination in patients of AR. MATERIALS AND METHODS: Seventy patients with AR participated in a prospective, randomized, double-blind, parallel, active-controlled, comparative 4-week trial. The patients between the age group of 18-65 years of either gender having moderate-severe intermittent or mild persistent AR were included in the study. The study inclusion criteria required the patients with total nasal symptom score (TNSS) of 5 or higher. The patients were randomly divided into two treatment groups with montelukast-levocetirizine (10 mg and 5 mg) in one group and montelukast-fexofenadine (10 mg and 120 mg) in another group. TNSS parameter was the main effectiveness parameter. RESULTS: Evaluation of TNSS revealed significant difference (P < 0.05) when compared from baseline to 4th week in both groups. The mean change of TNSS, i.e., 9.46 was significant (P < 0.05) in montelukast-fexofenadine group. The cost-effectiveness ratio was less in montelukast-levocetirizine group than in montelukast-fexofenadine group. CONCLUSION: The decrease in TNSS was more in montelukast-fexofenadine group, but the cost-effectiveness is more with montelukast-levocetirizine combination.

Medication-related expenditures by individuals with allergic rhinitis in Nigeria.

OBJECTIVE: To assess the medication-related expenditures in individuals with allergic rhinitis (AR) and identify contributory factors that affect these expenditures. STUDY DESIGN: Cross-sectional study from August 2013 to January 2014. SETTING: Kwara state has 16 local government areas, a total land mass of 36,825 km(2), and a population of 2,591,555. SUBJECTS AND METHODS: Of the 308 adult subjects, 66 had AR using the Score for Allergic Rhinitis (SFAR). Information on medication-related expenditure and associated factors in AR was obtained using a structured questionnaire. Descriptive and comparative analyses between AR and non-AR subjects were performed using an independent-sample t test and χ(2) test. Factors associated with cost of care were assessed using logistic regression analysis. RESULTS: The AR crude prevalence rate was 21.4%. Of the subjects, the mean ± SD age was 37.6 ± 10.0 years, and 87.9% were married, 72.7% were self-employed, and 69.7% were in the low socioeconomic class. In total, 69.7% had intermittent symptoms, while 66.7% had a positive family history of allergy. Polypharmacy care was employed in 76.1%, and 30.3% had comorbidity with asthma. The mean monthly income was 842 US dollars (USD), while the mean monthly cost of care was 81 USD, constituting 9.6% of mean monthly income. All payments were through out-of-pocket-expenses. Factors associated with convenience of cost of care were positive family history (odds ratio [OR], 7.93; P = .021) and presence of intermittent symptoms (OR, 9.36; P = .013). CONCLUSION: The medication-related expenditure of AR is burdensome with an average expenditure of almost 10% of monthly income.

Subcutaneous immunotherapy in Northern Israel: efficacy and safety.

BACKGROUND: The efficacy of subcutaneous immunotherapy for the treatment of allergic rhinitis, allergic conjunctivitis, allergic asthma and stinging insect hypersensitivity has been demonstrated in several studies. OBJECTIVES: To investigate the effectiveness and side effects of immunotherapy in Israel and the relationship between local and systemic side effects. METHODS: This retrospective study was based on patient records and a computerized database for drug dispensing over a 5 year period. Success was rated as partial or complete. Side effects were classified as local or systemic. Systemic side effects were further classified according to severity, as mild (cutaneous), moderate (respiratory symptoms), or severe (cardiovascular). RESULTS: Of the 135 patients on aero-allergen immunotherapy who reached maintenance, 120 (88.9%) exhibited complete or partial improvement and 15 (11.1%) did not improve. All of the 44 patients on hymenoptera immunotherapy reached effective maintenance doses. The mean percent side effects calculated per treatment (injection) were 2.49 for local and 1.58 for a systemic reaction during the build-up phase, and 1.13 and 1.12 during the maintenance phase, respectively. Rates of systemic reactions were 1.3% for cutaneous, 1.14% for respiratory and 0.97% for cardiovascular reactions during the build-up phase, and 1.11%, 0.53%, and 0.51% during the maintenance phase, respectively. The odds of systemic reactions were significantly higher in patients with local reactions both in the build-up phase (P = 0.03) and in the maintenance phase (P = 0.0003). The number of annual medications dispensed per patient decreased from 31.5 to 26.0 during the first year after reaching maintenance, and to 22.5 in the second year. Pharmaceutical costs were 67% lower 1 year after the start of the maintenance phase, compared to the year before the start of immunotherapy, and 63% lower in the second year (P = NS). CONCLUSIONS: Immunotherapy was effective and safe. Recognizing the benefits and safety of immunotherapy by physicians and health authorities is necessary to provide better care for allergic patients.

Health-care utilization and costs with fluticasone propionate and fluticasone propionate/salmeterol in asthma patients at risk for exacerbations.

Although studies have established that adding long-acting beta agonists (LABA) to inhaled corticosteroid (ICS) monotherapy among patients with inadequately controlled asthma is associated with better outcomes than increasing ICS dosage, outcomes with ICS versus fixed-dose ICS/LABA combination among patients with recent asthma exacerbation or frequent use of rescue medication are unavailable. This study was designed to compare health-care utilization/costs among patients with recent asthma exacerbation or frequent rescue medication use who received fluticasone propionate (FP) alone versus fixed-dose FP/salmeterol combination (FSC). A retrospective cohort study was conducted using a large health insurance data set. Patients with one or more claims with asthma diagnosis, two or more prescriptions for FSC (250/50- or 100/50-mg formulations) or FP (220- or 110-mg formulations), and one or more asthma exacerbations or five or more short-acting beta agonist (SABA) prescriptions within 1 year before initial receipt of study medications were included. Health-care utilization/costs and controller therapy compliance were compared for patients receiving FSC versus FP using multivariate regression analysis controlling for FP dose and baseline characteristics. A total of 7779 patients met inclusion criteria (5769, FSC, and 2010, FP) with comparable mean follow-up (FSC, 685 days; FP, 670 days; p = 0.151). Controlling for FP dosage and baseline characteristics, FSC patients had lower risks of asthma-related exacerbations, fewer SABAs and systemic corticosteroids, higher costs of asthma medications and total asthma-related health care, and lower total asthma-related health-care costs excluding study medication cost. In asthma patients with recent exacerbation or frequent SABA use, receipt of FSC reduced asthma-related exacerbation risks and rescue medication use versus receipt of FP.

Chronic idiopathic urticaria: treatment with omalizumab.

Chronic idiopathic urticaria (CIU) is a common autoimmune skin condition characterized by spontaneously recurring hives for 6 weeks or longer. The new terminology used for CIU in most countries including Canada is chronic spontaneous urticaria (CSU). CSU is associated with significant psychosocial morbidity with a markedly negative impact on overall quality of life. Conventional approaches with antihistamines, even at high doses, is effective in about 50% of patients suffering from CSU. A new treatment option, omalizumab, a humanized monoclonal antibody against the Fc domain of IgE, has undergone the scrutiny of randomized research studies evaluating the efficacy in CSU. This editorial reviews mechanisms of action of omalizumab, efficacy, cost and potential side effect profile. Omalizumab has emerged as a very promising treatment option for patients with CSU. Future research is necessary to establish standardized protocols related to dosing as well as monitoring possible adverse effects of long-term treatment.

'Help for Hay Fever', a goal-focused intervention for people with intermittent allergic rhinitis, delivered in Scottish community pharmacies: study protocol for a pilot cluster randomized controlled trial.

BACKGROUND: Despite the availability of evidence-based guidelines for managing allergic rhinitis in primary care, management of the condition in the United Kingdom (UK) remains sub-optimal. Its high prevalence and negative effects on quality of life, school performance, productivity and co-morbid respiratory conditions (in particular, asthma), and high health and societal costs, make this a priority for developing novel models of care. Recent Australian research demonstrated the potential of a community pharmacy-based 'goal-focused' intervention to help people with intermittent allergic rhinitis to self-manage their condition better, reduce symptom severity and improve quality of life. In this pilot study we will assess the transferability of the goal-focused intervention to a UK context, the suitability of the intervention materials, procedures and outcome measures and collect data to inform a future definitive UK randomized controlled trial (RCT). METHODS/DESIGN: A pilot cluster RCT with associated preliminary economic analysis and embedded qualitative evaluation. The pilot trial will take place in two Scottish Health Board areas: Grampian and Greater Glasgow & Clyde. Twelve community pharmacies will be randomly assigned to intervention or usual care group. Each will recruit 12 customers seeking advice or treatment for intermittent allergic rhinitis. Pharmacy staff in intervention pharmacies will support recruited customers in developing strategies for setting and achieving goals that aim to avoid/minimize triggers for, and eliminate/minimize symptoms of allergic rhinitis. Customers recruited in non-intervention pharmacies will receive usual care. The co-primary outcome measures, selected to inform a sample size calculation for a future RCT, are: community pharmacy and customer recruitment and completion rates; and effect size of change in the validated mini-Rhinoconjunctivitis Quality of Life Questionnaire between baseline, one-week and six-weeks post-intervention. Secondary outcome measures relate to changes in symptom severity, productivity, medication adherence and self-efficacy. Quantitative data about accrual, retention and economic measures, and qualitative data about participants' experiences during the trial will be collected to inform the future RCT. DISCUSSION: This work will lay the foundations for a definitive RCT of a community pharmacy-based 'goal-focused' self-management intervention for people with intermittent allergic rhinitis. Results of the pilot trial are expected to be available in April 2013. TRIAL REGISTRATION: Current Controlled Trials ISRCTN43606442.

Twenty-first century mast cell stabilizers.

Mast cell stabilizing drugs inhibit the release of allergic mediators from mast cells and are used clinically to prevent allergic reactions to common allergens. Despite the relative success of the most commonly prescribed mast cell stabilizer, disodium cromoglycate, in use for the preventative treatment of bronchial asthma, allergic conjunctivitis and vernal keratoconjunctivitis, there still remains an urgent need to design new substances that are less expensive and require less frequent dosing schedules. In this regard, recent developments towards the discovery of the next generation of mast cell stabilizing drugs has included studies on substances isolated from natural sources, biological, newly synthesized compounds and drugs licensed for other indications. The diversity of natural products evaluated range from simple phenols, alkaloids, terpenes to simple amino acids. While in some cases their precise mode of action remains unknown it has nevertheless sparked interest in the development of synthetic derivatives with improved pharmacological properties. Within the purely synthetic class of inhibitors, particular attention has been devoted to the inhibition of important signalling molecules including spleen TK and JAK3. The statin class of cholesterol-lowering drugs as well as nilotinib, a TK inhibitor, are just some examples of clinically used drugs that have been evaluated for their anti-allergic properties. Here, we examine each approach under investigation, summarize the test data generated and offer suggestions for further preclinical evaluation before their therapeutic potential can be realized.

Ciclesonide for the treatment of seasonal allergic rhinitis.

Allergic rhinitis is considered one of the most common afflictions of humans, affecting up to 30% of the world's population, and is increasing in incidence. Primary symptoms, comorbid conditions and complications of this disorder exact a significant toll, resulting in an enormous physical, social and economic impact on society. Single-season allergic rhinitis accounts for approximately 20% of cases of allergic rhinitis with another 40% having mixed seasonal-perennial presentations. Management of this disorder encompasses several treatment options, with intranasal corticosteroids recommended as first-line treatment in moderate-to-severe seasonal allergic rhinitis in current practice parameters. Ciclesonide is the most recently approved product in this category for the management of seasonal allergic rhinitis and is the subject of this article.

[Cost-effectiveness analysis of pre-seasonal medication for cedar pollinosis in Japan].

Pre-seasonal medication is recommended for cases of cedar pollinosis that are expected to manifest severe symptoms during the season, according to the standard clinical guideline in Japan. This study aims to appraise the value for money of additional costs that accompany the choice of pre-seasonal medication from payer's perspective. Based on the 12 reports of controlled clinical trials with Symptom Score (SS) and Medication Score (MS) comparing pre-seasonal medication with intra-seasonal symptomatic medication, 15 incremental cost-effectiveness ratios (ICERs) and 4 integrated ICERs of each group of targeted agents are estimated. Incremental effects are estimated by reading SS charts, and incremental costs are estimated by reading MS charts and using National Health Insurance Medical Fee Schedule and National Health Insurance Drug Price Standard. Estimated ICERs range from ¥322,195 per quality-adjusted life-year (QALY) to ¥57,088,063 per QALY. Integrated ICERs are: ¥1,128,286 per QALY for 2nd generation histamine H(1) receptor antagonists, ¥2,248,018 per QALY for leukotriene receptor antagonists, ¥2,692,911 per QALY for prostaglandin D(2) and thromboxane A(2) receptor antagonists, ¥1,150,943 per QALY for Th2 cytokine suppressors, and ¥1,291,341 per QALY for all agents. Pre-seasonal medication for cedar pollinosis is cost-effective regardless of the choice of the prophylactic agent among 2nd generation histamine H(1) receptor antagonists, leukotriene receptor antagonists, prostaglandin D(2) and thromboxane A(2) receptor antagonists, or Th2 cytokine suppressors, taking the suggested threshold of ¥5,000,000 per 1 QALY gain in Japan. The use of 2nd generation histamine H(1) receptor antagonists and Th2 cytokine suppressors are found more favourable.

Discontinued drugs 2008: pulmonary and allergy.

This is the annual perspectives paper on discontinued drugs in the field of pulmonary disease and allergy. It is part of a series of papers discussing drugs dropped from clinical development in the previous year and presented according to therapeutic indication. Specifically, this paper presents the six pulmonary and five allergy drugs discontinued in 2008. Information for this perspective was derived from a search of the Pharmaprojects database for drugs discontinued after reaching Phase I - III clinical trials.

[Prevalence of allergic diseases in Mexico City]. / Prevalencia de las enfermedades alérgicas en la Ciudad de México.

BACKGROUND: There is a considerable variation in the prevalence of allergic disorders in developing countries. These differences may be attributable to different methodological problems and to the lack of operational definitions. Several studies suggest that the prevalence of allergic diseases has been increasing worldwide in recent years. However, in Mexico, there is no data in open population. OBJECTIVE: To know in open population the prevalence of allergic diseases in the counties of Mexico City, the frequence of symptoms in each allergic disease, the therapeutic modalities that patients seek, the school and work annual absences and the amount of money that each patient spends in antiallergic drugs. PATIENTS AND METHODS: It was an open-population, cross-sectional trial, in two phases with a random sample size of 8,000 individuals from 214 public health centers. Statistical analysis was made with Excel 97-2004: Mann-Whitney U test for continuous variables and chi-square-test for discrete variables, p < 0.05 was considered statistically significant. RESULTS: The prevalence of allergic diseases in Mexico City was 42.6%, allergic rhinitis was the most frequent. Children are the largest age group affected. The highest prevalence was found in Tlahuac county. Coexistence of allergic diseases was found in 19.9%. The 44.2% of allergic patients attended to their general practitioner. 20.4% of all patients spent 10-20% of their income in medicines and 26% do not have money to buy antiallergic drugs. School and work annual absences are 3.37 +/- 3.86 and 6.2 +/- 12.84 days, respectively. CONCLUSION: Allergic diseases must be considered a public-health problem in Mexico City.

Comparison of corticosteroid nasal sprays in relation to concomitant use and cost of other prescription medications to treat allergic rhinitis symptoms: retrospective cohort analysis of pharmacy claims data.

BACKGROUND AND OBJECTIVE: Intranasal corticosteroids are considered to be highly effective in patients with perennial or seasonal allergic rhinitis. Multiple intranasal corticosteroid products are available; however, an intranasal corticosteroid that treats nasal and ocular seasonal allergic rhinitis symptoms may be more cost effective by reducing the need for concomitant drugs. The purpose of this study was to compare the utilization and costs of concomitant allergic rhinitis drugs among commonly used branded intranasal corticosteroid drugs. METHODS: Pharmacy claims data between 1 April 2006 and 31 January 2008 were obtained from the Wolters Kluwer SourceLx dataset. Patients with at least one pharmacy claim for a branded intranasal corticosteroid agent (fluticasone furoate, budesonide, mometasone or triamcinolone) during the index period of 1 April 2007 through 31 July 2007 were included. Study outcomes assessed were time to concomitant use of prescription allergic rhinitis drugs (other than intranasal corticosteroids) and costs of those medications and intranasal corticosteroid drugs during a 60-day post-index period. RESULTS: A total of 793 349 patients were included in the study. At index, a majority of the patients were using mometasone (62.9%), followed by triamcinolone (21.1%), budesonide (15.1%) and fluticasone furoate (1.0%). After controlling for other covariates, patients receiving fluticasone furoate had on average a 21% lower risk of concomitant prescription allergic rhinitis drug use (adjusted hazard ratio [HR] 0.79; 95% CI 0.75, 0.83) compared with the other three branded intranasal corticosteroid agents. Compared with fluticasone furoate, all other branded intranasal corticosteroid agents incurred statistically significant higher costs of concomitant allergic rhinitis drugs (6.3%, p = 0.002), resulting in increased costs to health plans of $US5-$US6 per patient over a 60-day period. Mean intranasal corticosteroid costs per patient during the 60-day follow-up period were lowest for budesonide ($US70.15), followed by fluticasone furoate ($US70.86), triamcinolone ($US73.23) and mometasone ($US75.48). CONCLUSION: In this cohort of intranasal corticosteroid users, fluticasone furoate was shown to reduce the need for concomitant prescription allergic rhinitis medications compared with other leading branded intranasal corticosteroid therapies, resulting in lower costs per patient and potentially leading to significant savings for health plans.