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  • Title: Comparison of the efficacy of combined fluticasone propionate and olopatadine versus combined fluticasone propionate and fexofenadine for the treatment of allergic rhinoconjunctivitis induced by conjunctival allergen challenge.
    Author: Lanier BQ, Abelson MB, Berger WE, Granet DB, D'Arienzo PA, Spangler DL, Kägi MK.
    Journal: Clin Ther; 2002 Jul; 24(7):1161-74. PubMed ID: 12182260.
    Abstract:
    BACKGROUND: One approach to treating allergic rhinoconjunctivitis is the concomitant use of an intranasal spray such as fluticasone propionate to alleviate nasal symptoms and a topical or systemic agent to relieve ocular symptoms. It has not yet been determined whether a topical or systemic agent is more effective for the latter purpose. OBJECTIVE: This study compared the efficacy of combined use of fluticasone and olopatadine with combined use of fluticasone and fexofenadine in the treatment of the signs and symptoms of allergic rhinoconjunctivitis. METHODS: This 2-site, randomized, double-masked, placebo-controlled, parallel-group study employed the conjunctival allergen challenge (CAC) model, a standardized method of inducing ocular and nasal signs and symptoms of allergic rhinoconjunctivitis. At visit 1, subjects underwent CAC to determine the dose of allergen required to elicit a positive reaction. The allergen dose was confirmed at visit 2, and, according to a randomization schedule, subjects were dispensed fluticasone, olopatadine, and placebo pill; fluticasone, fexofenadine, and tear substitute; or placebo nasal spray, placebo pill, and tear substitute. CAC took place at visit 3, after patients had used the assigned medications for 2 weeks. Study medication was instilled 2 hours before CAC, after which allergic signs and symptoms were graded on standardized scales. The primary efficacy variables were ocular itching, ocular redness, and overall nasal symptoms. RESULTS: Eighty subjects completed the study: 30 received fluticasone and olopatadine, 30 fluticasone and fexofenadine, and 20 placebo. Women constituted 63.8% of the study population and men 36.3%; 91.3% were white, 3.8% black, 2.5% Hispanic, 1.3% Asian, and 1.3% other. Concomitant use of fluticasone and olopatadine produced significantly greater improvements in ocular itching at 3 and 7 minutes after CAC compared with fluticasone and fexofenadine (P < 0.05). There were no significant differences in redness scores between groups; however, concomitant use of fluticasone and olopatadine produced significantly greater improvements in redness at 2 time points in each of the 3 vessel beds (ciliary, conjunctival, and episcleral) compared with placebo, and fluticasone and fexofenadine produced significantly greater improvement in redness at 1 time point in I vessel bed compared with placebo (both comparisons, P < 0.05). The 2 treatments had similar effects on total nasal symptom efficacy scores. CONCLUSIONS: In this study, concomitant use of the topical agents fluticasone and olopatadine was more effective than concomitant use of fluticasone plus fexofenadine for overall treatment of the signs and symptoms of induced allergic rhinoconjunctivitis.
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