Integrated phase III trials of bepotastine besilate ophthalmic solution 1.5% for ocular itching associated with allergic conjunctivitis

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Abstract:

Allergic conjunctivitis is a clinical reaction to environmental allergens and is manifested by ocular itching caused by IgE-induced mast cell degranulation. Bepotastine besilate is a selective H1-antagonist with mast cell stabilizing properties. This report examines the reduction of ocular itching integrated from two conjunctival allergen challenge (CAC) clinical trials comparing bepotastine besilate ophthalmic solution (BBOS) 1.5% to placebo in subjects with a history of allergic conjunctivitis. Two phase III, double-masked, placebo-controlled, parallel-group, CAC clinical trials evaluated BBOS 1.5% versus placebo to reduce ocular itching. Eligible subjects were randomly assigned 1:1 to either BBOS 1.5% (n = 78) or placebo (n = 79). Ocular itching was graded by subjects using a standardized scale (0‐4 U). Adverse events and ophthalmic clinical findings were recorded for safety. BBOS 1.5% was superior to placebo for reducing CAC-induced ocular itching (p < 0.0001) as early as 3 minutes post-CAC and for at least 8 hours after dosing. Post hoc analyses examining several populations also showed a significant improvement (p < 0.0001) for subjects with more severe itching response at screening and for the proportion of subjects with complete or nearly complete resolution of CAC-induced itching, both outcomes supporting the clinical benefit of BBOS 1.5%. Adverse events were generally transient and mild. BBOS 1.5% is safe and effective in the treatment of ocular itching associated with allergic conjunctivitis within 3 minutes of a CAC and with a sustained duration of action of at least 8 hours. (ClinicalTrials.gov numbers: NCT00424398 and NCT00586664).
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  • 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.

    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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