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Curr Med Res Opin. 2009 May;25(5):1159-69. doi: 10.1185/03007990902837919 .

Phase III efficacy and safety study of besifloxacin ophthalmic suspension 0.6% in the treatment of bacterial conjunctivitis.

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  • 1Cornerstone Eye Care, High Point, NC, USA.

Abstract

OBJECTIVE:

To compare the clinical and antimicrobial efficacy of besifloxacin ophthalmic suspension 0.6% with that of vehicle in the treatment of bacterial conjunctivitis.

RESEARCH DESIGN AND METHODS:

This was a randomized, multicenter, double-masked, vehicle-controlled study. A total of 957 patients aged 1 year and older with bacterial conjunctivitis were randomized to treatment with besifloxacin ophthalmic suspension 0.6% or vehicle applied topically three times daily for 5 days.

MAIN OUTCOME MEASURES:

Primary endpoints were clinical resolution and microbial eradication of baseline bacterial infection at Visit 2 (Day 5 +/- 1). Secondary endpoints included clinical resolution and microbial eradication at Visit 3 (Day 8 or 9), individual clinical outcomes at follow-up visits, and safety.

CLINICAL TRIAL REGISTRATION:

NCT number, NCT00347932.

RESULTS:

Three hundred and ninety patients had culture-confirmed bacterial conjunctivitis. Clinical resolution and microbial eradication were significantly greater with besifloxacin ophthalmic suspension than with vehicle at Visit 2 (45.2% vs. 33.0%, p = 0.0084; and 91.5% vs. 59.7%, p < 0.0001, respectively) and Visit 3 (84.4% vs. 69.1%, p = 0.0011; and 88.4% vs. 71.7%, p < 0.0001, respectively). Results for secondary endpoints of individual clinical outcomes were consistent with primary endpoints. Fewer eyes receiving besifloxacin ophthalmic suspension experienced adverse events than those receiving vehicle (9.2% vs. 13.9%; p = 0.0047).

CONCLUSIONS:

Besifloxacin ophthalmic suspension produces clinical resolution and microbial eradication rates significantly better than vehicle and is safe for the treatment of bacterial conjunctivitis.

LIMITATIONS:

A limitation of this study is the lack of a non-treatment control group.

PMID:
19323612
DOI:
10.1185/03007990902837919
[PubMed - indexed for MEDLINE]
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