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Allergen immunotherapy for allergic rhinoconjunctivitis: a systematic overview of systematic reviews.


ABSTRACT: The European Academy of Allergy and Clinical Immunology (EAACI) is developing Guidelines on Allergen Immunotherapy (AIT) for Allergic Rhinoconjunctivitis (ARC). To inform the development of recommendations, we sought to critically assess the systematic review evidence on the effectiveness, safety and cost-effectiveness of AIT for ARC.We undertook a systematic overview, which involved searching nine international biomedical databases from inception to October 31, 2015. Studies were independently screened by two reviewers against pre-defined eligibility criteria and critically appraised using the Critical Appraisal Skills Programme (CASP) Systematic Review Checklist for systematic reviews. Data were descriptively synthesized.Our searches yielded a total of 5932 potentially eligible studies, from which 17 systematic reviews met our inclusion criteria. Eight of these were judged to be of high, five moderate and three low quality. These reviews suggested that, in carefully selected patients, subcutaneous (SCIT) and sublingual (SLIT) immunotherapy resulted in significant reductions in symptom scores and medication requirements. Serious adverse outcomes were rare for both SCIT and SLIT. Two systematic reviews reported some evidence of potential cost savings associated with use of SCIT and SLIT.We found moderate-to-strong evidence that SCIT and SLIT can, in appropriately selected patients, reduce symptoms and medication requirements in patients with ARC with reassuring safety data. This evidence does however need to be interpreted with caution, particularly given the heterogeneity in the populations, allergens and protocols studied. There is a lack of data on the relative effectiveness, cost-effectiveness and safety of SCIT and SLIT. We are now systematically reviewing all the primary studies, including recent evidence that has not been incorporated into the published systematic reviews.

SUBMITTER: Nurmatov U 

PROVIDER: S-EPMC5547534 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature

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Allergen immunotherapy for allergic rhinoconjunctivitis: a systematic overview of systematic reviews.

Nurmatov Ulugbek U   Dhami Sangeeta S   Arasi Stefania S   Roberts Graham G   Pfaar Oliver O   Muraro Antonella A   Ansotegui Ignacio J IJ   Calderon Moises M   Cingi Cemal C   Durham Stephen S   van Wijk Roy Gerth RG   Halken Susanne S   Hamelmann Eckard E   Hellings Peter P   Jacobsen Lars L   Knol Edward E   Larenas-Linnemann Desiree D   Lin Sandra Y SY   Maggina Vivian V   Oude-Elberink Hanneke H   Pajno Giovanni G   Panwankar Ruby R   Pastorello Elideanna E   Pitsios Constantinos C   Rotiroti Giuseppina G   Timmermans Frans F   Tsilochristou Olympia O   Varga Eva-Maria EM   Wilkinson Jamie J   Williams Andrew A   Worm Margitta M   Zhang Luo L   Sheikh Aziz A  

Clinical and translational allergy 20170808


<h4>Background</h4>The European Academy of Allergy and Clinical Immunology (EAACI) is developing Guidelines on Allergen Immunotherapy (AIT) for Allergic Rhinoconjunctivitis (ARC). To inform the development of recommendations, we sought to critically assess the systematic review evidence on the effectiveness, safety and cost-effectiveness of AIT for ARC.<h4>Methods</h4>We undertook a systematic overview, which involved searching nine international biomedical databases from inception to October 31  ...[more]

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