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Efficacy of bepotastine besilate ophthalmic solution 1.5% for seasonal allergic conjunctivitis: A randomized, placebo-controlled, natural exposure, clinical trial

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Allergic conjunctivitis (AC) affects an estimated 20% of the population in the Western world, with a large fraction suffering due to seasonal or perennial allergen exposures. Bepotastine besilate ophthalmic solution (BBOS) 1.5%, a dual-acting histamine (H1) receptor antagonist and mast cell stabilizer, is indicated for itching associated with AC. This study was designed to evaluate the efficacy and safety of BBOS 1.5% for reducing ocular itching associated with AC in subjects enrolled in a natural exposure trial. Eligible subjects in a multicenter, double-masked, randomized, parallel-group, placebo-controlled, natural exposure clinical trial were randomly assigned to either BBOS 1.5% or placebo eyedrops on a 1:1 basis and instilled 1 drop of the test agent into both eyes twice daily for 2 weeks. The mean change from baseline in instantaneous and reflective ocular itching scores at the end of 2 weeks of treatment were evaluated based on subject-assessed severity of instantaneous and reflective itching. Subject-reported adverse events (AEs) were also recorded for safety. Treatment with BBOS 1.5% significantly reduced instantaneous and reflective ocular itching scores from baseline compared with placebo over the 2-week study period (p = 0.007 and p = 0.005, respectively). BBOS 1.5% was well tolerated, and AEs were generally transient and mild. This clinical study indicates BBOS 1.5% effectively and safely treated ocular itching in a natural exposure allergy study and is a useful treatment option for the management of ocular itching associated with AC. ( identifier number: NCT01174823.)
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Keywords: Allergy; bepotastine besilate; clinical trial; environmental study; histamine receptor antagonist; immunoglobulin E; mast cell degranulation; ocular itching; placebo control; seasonal allergic conjunctivitis

Document Type: Research Article

Affiliations: Allergy and Allergy Associates of Southern California, Mission Viejo, California, USA

Publication date: 01 May 2013

More about this publication?
  • Allergy and Asthma Proceedings is a peer reviewed publication dedicated to distributing timely scientific research regarding advancements in the knowledge and practice of allergy, asthma and immunology. Its primary readership consists of allergists and pulmonologists.

    The goal of the Proceedings is to publish articles with a predominantly clinical focus which directly impact quality of care for patients with allergic disease and asthma and by having the potential to directly impact the quality of patient care. AAP welcomes the submission of original works including peer-reviewed original research and clinical trial results. Additionally, as the official journal of the Eastern Allergy Conference (EAC), AAP will publish content from EAC poster sessions as well as review articles derived from EAC lectures.

    Featured topics include asthma, rhinitis, sinusitis, food allergies, allergic skin diseases, diagnostic techniques, allergens, and treatment modalities. Published material includes peer-reviewed original research, clinical trials and review articles.

    Articles marked "F" offer free full text for personal noncommercial use only.

    The journal is indexed in Thomson Reuters Web of Science and Science Citation Index Expanded, plus the National Library of Medicine's PubMed service.
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