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Hampel, F. et al.

Hampel, Howland, Van Bavel, Ratner,

A randomized, double-blind, placebo-controlled study comparing the efficacy and safety of ebastine (20 mg and 10 mg) to loratadine 10 mg once daily in the treatment of seasonal allergic rhinitis.

Few randomized studies have compared the H1-receptor antagonists loratadine and ebastine in seasonal allergic rhinitis (SAR) patients. The objective of this study was to compare the efficacy and safety of ebastine 20 mg (E20), ebastine 10 mg (E10), loratadine 10 mg ( L10), and placebo (P), once daily, in controlling symptoms of SAR over a 4-week period. This was a double-blind, placebo-controlled, randomized, parallel-group study. Efficacy was assessed in 749 patients (12 to 70 years old) by SAR symptom scores (nasal discharge, congestion, itching, sneezing, and total eye symptoms) entered on diary cards every morning and every evening over the previous 12 hours (reflective score) and at the time of recording (snapshot score). The E20 group showed greater reductions from baseline compared with the L10 group in 2 daily reflective composite scores (nasal index [with or without congestion]) and in all 4 daily snapshot composite scores. E10 and L10 groups showed no significant differences in either the daily reflective or snapshot scores overall although E10 showed a greater improvement of nasal discharge snapshot score than L10. The efficacy of E20 at controlling the symptoms of SAR was well sustained during the fourth week of treatment, with significant differences over placebo in 22/36 total rhinitis symptom scores, followed by E10 (6/36), whereas L10 showed no differences (0/36). Patient and physician global evaluations at the final visit were not statistically significant for any treatment group compared with placebo. There was no significant difference among all groups in the number of patients who reported adverse events. In conclusion, ebastine 20 mg given once daily for 4 weeks in the treatment of SAR showed larger mean reductions from baseline in most rhinitis symptoms scores than loratadine 10 mg. Sustained efficacy was most frequently observed with ebastine 20 mg over placebo, whereas loratadine 10 mg did not provide a statistically significant improvement in any individual or composite symptom score at the end of the fourth week. Both ebastine 20 and 10 mg were well tolerated and proved safe in the treatment of SAR.[1]

References

A randomized, double-blind, placebo-controlled study comparing the efficacy and safety of ebastine (20 mg and 10 mg) to loratadine 10 mg once daily in the treatment of seasonal allergic rhinitis. Hampel, F., Howland, W., Van Bavel, J., Ratner, P. Journal of investigational allergology & clinical immunology : official organ of the International Association of Asthmology (INTERASMA) and Sociedad Latinoamericana de Alergia e Inmunología. (2004) [Pubmed]

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