Inhibition of the Antigen Provoked Nasal Reaction by Second-generation Antihistamines in Patients with Japanese Cedar Pollinosis

Background: Epinastine hydrochloride and fexofenadine hydrochloride, the second-generation antihistamines, are largely used in the indication of allergic rhinitis in Japan. The purpose of this study was to compare the protective efficacy of epinastine hydrochloride or fexofenadine hydrochloride usin...

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Main Authors: Kimihiro Okubo, Minoru Gotoh
Format: Article
Language:English
Published: Elsevier 2006-01-01
Series:Allergology International
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1323893015309758
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author Kimihiro Okubo
Minoru Gotoh
author_facet Kimihiro Okubo
Minoru Gotoh
author_sort Kimihiro Okubo
collection DOAJ
description Background: Epinastine hydrochloride and fexofenadine hydrochloride, the second-generation antihistamines, are largely used in the indication of allergic rhinitis in Japan. The purpose of this study was to compare the protective efficacy of epinastine hydrochloride or fexofenadine hydrochloride using a nasal provocation test with Japanese cedar pollen allergen. Methods: A single-dose, placebo-controlled, single-blind crossover clinical study was conducted in patients with Japanese cedar pollinosis. The pollen exposure was done by the antigen provocation by disc method and involved repeated provocation five times per day. Results: Among the active agents studied—epinastine hydrochloride and fexofenadine hydrochloride—epinastine hydrochloride significantly decreased the number of sneezing attacks and the quantity of nasal discharge for 3 hours after drug administration compared with placebo, a finding supported by the quantity of nasal discharge in the nasal findings. In this study, fexofenadine hydrochloride showed no significant difference compared with placebo. Conclusions: This study demonstrates better protection with epinastine hydrochloride than with fexofenadine hydrochloride or placebo in a nasal provocation test with Japanese cedar pollen allergen.
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spelling doaj.art-2037cb4e23144483a94fcb24b95f96512022-12-22T01:58:01ZengElsevierAllergology International1323-89302006-01-0155326126910.2332/allergolint.55.261Inhibition of the Antigen Provoked Nasal Reaction by Second-generation Antihistamines in Patients with Japanese Cedar PollinosisKimihiro Okubo0Minoru Gotoh1Departments of Otorhinolaryngology and Head/Neck Surgery, Nippon Medical School, Tokyo, JapanDepartment of Otorhinolaryngology, Nippon Medical School Chiba Hokusoh Hospital, Chiba, Japan.Background: Epinastine hydrochloride and fexofenadine hydrochloride, the second-generation antihistamines, are largely used in the indication of allergic rhinitis in Japan. The purpose of this study was to compare the protective efficacy of epinastine hydrochloride or fexofenadine hydrochloride using a nasal provocation test with Japanese cedar pollen allergen. Methods: A single-dose, placebo-controlled, single-blind crossover clinical study was conducted in patients with Japanese cedar pollinosis. The pollen exposure was done by the antigen provocation by disc method and involved repeated provocation five times per day. Results: Among the active agents studied—epinastine hydrochloride and fexofenadine hydrochloride—epinastine hydrochloride significantly decreased the number of sneezing attacks and the quantity of nasal discharge for 3 hours after drug administration compared with placebo, a finding supported by the quantity of nasal discharge in the nasal findings. In this study, fexofenadine hydrochloride showed no significant difference compared with placebo. Conclusions: This study demonstrates better protection with epinastine hydrochloride than with fexofenadine hydrochloride or placebo in a nasal provocation test with Japanese cedar pollen allergen.http://www.sciencedirect.com/science/article/pii/S1323893015309758allergic rhinitisepinastine hydrochloridefexofenadine hydrochloridenasal provocationrhinoscopy
spellingShingle Kimihiro Okubo
Minoru Gotoh
Inhibition of the Antigen Provoked Nasal Reaction by Second-generation Antihistamines in Patients with Japanese Cedar Pollinosis
Allergology International
allergic rhinitis
epinastine hydrochloride
fexofenadine hydrochloride
nasal provocation
rhinoscopy
title Inhibition of the Antigen Provoked Nasal Reaction by Second-generation Antihistamines in Patients with Japanese Cedar Pollinosis
title_full Inhibition of the Antigen Provoked Nasal Reaction by Second-generation Antihistamines in Patients with Japanese Cedar Pollinosis
title_fullStr Inhibition of the Antigen Provoked Nasal Reaction by Second-generation Antihistamines in Patients with Japanese Cedar Pollinosis
title_full_unstemmed Inhibition of the Antigen Provoked Nasal Reaction by Second-generation Antihistamines in Patients with Japanese Cedar Pollinosis
title_short Inhibition of the Antigen Provoked Nasal Reaction by Second-generation Antihistamines in Patients with Japanese Cedar Pollinosis
title_sort inhibition of the antigen provoked nasal reaction by second generation antihistamines in patients with japanese cedar pollinosis
topic allergic rhinitis
epinastine hydrochloride
fexofenadine hydrochloride
nasal provocation
rhinoscopy
url http://www.sciencedirect.com/science/article/pii/S1323893015309758
work_keys_str_mv AT kimihirookubo inhibitionoftheantigenprovokednasalreactionbysecondgenerationantihistaminesinpatientswithjapanesecedarpollinosis
AT minorugotoh inhibitionoftheantigenprovokednasalreactionbysecondgenerationantihistaminesinpatientswithjapanesecedarpollinosis