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  • Title: Once-daily fexofenadine treatment for chronic idiopathic urticaria: a multicenter, randomized, double-blind, placebo-controlled study.
    Author: Kaplan AP, Spector SL, Meeves S, Liao Y, Varghese ST, Georges G.
    Journal: Ann Allergy Asthma Immunol; 2005 Jun; 94(6):662-9. PubMed ID: 15984599.
    Abstract:
    BACKGROUND: Chronic idiopathic urticaria (CIU) can have a profound effect on patients' health and quality of life. OBJECTIVE: To evaluate the efficacy and safety of once-daily dosing of fexofenadine hydrochloride, 180 mg, on CIU. METHODS: This randomized, double-blind, parallel-group, placebo-controlled study consisted of a placebo run-in period followed by a 4-week treatment period. Patients 12 years and older with active CIU were randomized 2:1 to receive once-daily fexofenadine, 180 mg, or placebo. The primary end points were change from baseline in mean daily number of wheals (MNW score) and mean daily severity of pruritus during treatment. Secondary efficacy measures included modified total symptom scores and MNW and pruritus severity scores evaluated weekly and instantaneously at trough drug levels. RESULTS: Patients administered fexofenadine (n = 163) experienced significantly greater improvements in MNW and pruritus severity scores compared with the placebo group (n = 92) (P < .001 for both). Similarly, throughout treatment and at each individual week, the mean reductions in modified total symptom scores were significantly greater in the fexofenadine group (P < or = .005 for all comparisons vs placebo). The mean reductions in instantaneous MNW and pruritus severity scores were greater in patients in the fexofenadine group than in those who received placebo (MNW score: P = .015; pruritus severity score: P < .001). There were no significant differences in the frequency of treatment-emergent adverse events between the 2 treatment groups. CONCLUSIONS: A once-daily dose of fexofenadine hydrochloride, 180 mg, offered effective, well-tolerated relief for the management of CIU.
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