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  • Title: [Value of the conjunctival provocation test in evaluating the activity of 2 concentrations of anti-allergy eyedrops, mequitazine].
    Author: Dupin O, Compeyre S, Trinquand C, Persi L, Arnaud B.
    Journal: J Fr Ophtalmol; 1998 Jan; 21(1):12-8. PubMed ID: 9834894.
    Abstract:
    PURPOSE: To compare the activity of topical 0.05% and 0.01% mequitazine versus vehicle in the prevention of allergic conjunctivitis induced by a conjunctival provocation test with allergens. METHODS: Forty subjects with a history of grass pollen allergic conjunctivitis were enrolled in this comparative, randomized, double-masked study. Fifteen minutes before the conjunctival provocation test, subjects received one instillation alone of 0.05% mequitazine eyedrops in one eye and in the fellow eye either one drop of 0.01% dose or vehicle, at the same dosage. Then a specific conjunctival provocation test (CPT) was performed with the allergen threshold concentration previously defined. The therapeutic efficacy was assessed by the decrease in a symptomatic composite score representing the allergic reaction. RESULTS: Topical mequitazine at the dose of 0.05% significantly decreases the intensity of the allergic reaction compared to vehicle. Moreover, the group treated with this dose needed a higher allergen concentration to trigger ocular signs. The 0.01% dose appears efficient only on itching, compared to vehicle. CONCLUSION: The results of this study support the efficacy and the onset of action of 0.05% mequitazine eyedrops versus 0.01% or vehicle in the prevention of allergic conjunctivitis induced by a conjunctival provocation test.
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