Emerging drugs for perennial allergic rhinitis
by Passalacqua G, Ciprandi G.
Expert Opin Emerg Drugs. 2012 Dec;17(4):543-53. doi: 10.1517/14728214.2012.746312

Abstract

INTRODUCTION:
Allergic rhinitis (AR) is a high-prevalence disease, sustained by an IgE-triggered reaction with histamine release, followed by an inflammatory response which involves cells, mediators, cytokines and adhesion molecules. According to its duration, AR can be either intermittent or persistent. In the persistent form, the inflammatory component usually predominates.

AREAS COVERED:
The current therapeutic strategy is based on antihistamines, antileukotrienes and on corticosteroids (which broadly act on inflammation). Allergen-specific immunotherapy is a biological response modifier that affects the immune response to allergens in a broad sense. The available pharmacotherapy is overall effective in controlling symptoms and inflammation, but safety concerns may be present (especially for prolonged treatments), and a proportion of patients remain uncontrolled. The available therapeutic innovations, as derived from the most recent literature are reviewed herein.

EXPERT OPINION:
In the last years there have been very few innovative approaches to optimize the management of AR. These include new histamine receptor antagonists, combination therapy and strategies to selectively block relevant signaling pathways of the allergic reaction. Some more promising advances have been shown for allergen immunotherapy, where a number of new strategies are currently under development.



PMID: 23186314

Impact of Allergic Rhinitis Symptoms on Quality of Life in Primary Care
by Bousquet PJ, Demoly P, Devillier P, Mesbah K, Bousquet J
Int Arch Allergy Immunol. 2012 Nov 23;160(4):393-400. [Epub ahead of print]

Abstract

Background: Allergic rhinitis (AR) impairs quality of life (QoL), sleep and work. The Allergic Rhinitis and its Impact on Asthma (ARIA) classification is widely used, but the impact of the different symptoms on QoL is not clear. Objective: To describe characteristics of patients consulting in primary care for AR and to study the impact of AR symptoms and the ARIA classes on QoL. Methods: A multicenter prospective observational cross-sectional study assessed the visual analogue scale (VAS) in the management of AR in 990 patients consulting general practitioners for AR. Patients were classified according to the four classes of ARIA. VAS, Rhinoconjunctivitis Quality of Life Questionnaire (RQLQ) and total symptom score (TSS) for nasal and non-nasal symptoms were evaluated. VAS and TSS measures were compared with RQLQ. Results: Mild intermittent rhinitis was diagnosed in 20% of patients, mild persistent rhinitis in 17%, moderate/severe intermittent rhinitis in 15% and moderate/severe persistent rhinitis in 48%. The presence of treatments did not affect VAS levels. Both severity and duration of rhinitis had an impact on QoL and VAS levels. Ocular symptoms (OR: 2.78, 95% CI: 1.965-3.939) including eyelid edema (OR: 2.07, 95% CI: 1.274-3.360) and asthenia (OR: 2.73, 95% CI: 1.922-3.877) had more impact on RQLQ than nasal obstruction (OR: 1.61, 95% CI: 1.078-2.405) and nasal pruritus (OR 1.45, 95% CI: 1.028-2.042). Sneezing and rhinorrhea did not impact RQLQ. Conclusions: This study confirmed that ocular symptoms and, to a lesser degree, nasal obstruction and pruritus have a significant impact on QoL.



PMID: 23183377

Psychosocial factors and chronic spontaneous urticaria: a systematic review
by Ben-Shoshan M, Blinderman I, Raz A
Allergy. 2013 Feb;68(2):131-41. doi: 10.1111/all.12068. Epub 2012 Nov 12

Abstract

BACKGROUND:
Chronic spontaneous urticaria (CSU) is one of the most costly allergic conditions challenging physicians as well as patients and their families. Despite evident lacunae in the understanding of the pathogenesis, at least some findings suggest that psychosocial factors likely contribute to the development and exacerbation of CSU. We aim to assess the contribution of psychological factors to CSU.

METHODS:
Systematic search of PubMed and OVID/Medline databases was conducted from 1 January 1935 to 1 January 2012. Studies selected include original research in English, Spanish and French exploring the association between CSU and psychosocial factors. Two investigators independently reviewed all titles and abstracts to identify potentially relevant articles and resolved discrepancies by repeated review and discussion and arbitration of a third reviewer. Quality of systematic reviews and meta-analyses was assessed using a measure based on the Newcastle-Ottawa Scale and psychological conditions of CSU patients.

RESULTS:
We identified 114 eligible studies spanning 77 years and featuring 17 reviews, 67 studies related to neither CSU nor psychosocial factors, and eight studies that provided either no prevalence estimates or insufficient sample size. Pooling effect sizes using random effects, analyses revealed that, despite large heterogeneity (I(2) of 97.60%), psychosocial factors had a prevalence of 46.09% (95% confidence interval, 44.01%, 48.08%).

CONCLUSION:
Future research needs to better establish the contribution of psychosocial factors to the pathogenesis and exacerbation of CSU, and explore the possible benefit of behavioural interventions to the development of new management strategies.



PMID: 23157275

Quality of life and control of allergic rhinitis in patients from regions beyond western Europe and the United States
by Maspero J, Lee BW, Katelaris CH, Potter PC, Cingi C, Lopatin A, Saffer M, Nadeau G, Walters RD
Clin Exp Allergy. 2012 Dec;42(12):1684-96. doi: 10.1111/j.1365-2222.2012.04025.x

Abstract

There is comparatively little information on health-related quality of life (HRQoL) in subjects with allergic rhinitis (AR) or allergic rhinoconjunctivitis (AR/C) in countries beyond western Europe and North America. The primary aim of this investigation was therefore to review and assess the information in the public domain on HRQoL in AR/C patients from diverse regions of the world, represented by different countries, including Argentina, Australia, Brazil, Russia, Singapore, South Africa and Turkey. Second, in view of the absence of a standardized definition for 'AR control', the review aimed to determine whether a working definition of AR/C can be inferred from validated tests or other instruments documented to date. Despite the comparatively low number of studies, this review demonstrated that overall the symptoms of AR/C impair the HRQoL of patients in these regions by adversely impacting sleep, daily activities, physical and mental status and social functioning, similar to that demonstrated in much larger numbers of studies of AR/C patients in Europe and the United States. Furthermore, the findings of the review suggest that 'overall' control of the disease should encompass reduction of nasal and ocular symptoms, as well as improvements in HRQoL, comorbid conditions and cognition. Although some instruments are currently available for measuring control of AR, none are capable of assessing all these aspects, emphasizing the need to develop appropriate new instruments.



PMID: 23181786

Japanese guidelines for diagnosis and treatment of urticaria in comparison with other countries
by Hide M, Hiragun T
Allergol Int. 2012 Dec;61(4):517-27. doi: 10.2332/allergolint.12-RAI-0497. Epub 2012 Oct 25

Abstract

Several guidelines for urticaria and angioedema have been published in Europe and United States since 1997. General principles for diagnosis and treatments of them are similar. However, each guideline has its own characteristics and shows differences in areas such as the coverage of urticaria subtypes, nomenclatures, and hierarchy of the medications. In Japan, the Japanese Dermatological Association (JDA) published its first guideline for urticaria and angioedema in 2005. It established a new classification of urticaria and angioedema together with the definition of each subtype. It emphasized the importance of discriminating idiopathic urticaria, consisting of acute urticaria and chronic urticaria from inducible urticaria, such as allergic urticaria, physical urticaria and cholinergic urticaria. It contains several unique algorithms for diagnosis and treatment of urticaria from a view point of clinical practices, and was further enforced by a style of EBM in 2011. Nevertheless, these guidelines have not been recognized outside of Japan, because of a language barrier. In this article, the outline of the newest guidelines by JDA are introduced and compared with the guidelines in other countries published in English.



PMID: 23093797