Seasonal Allergic Rhinitis Clinical Trial
Official title:
A Phase IIIb, Single-center, Double-blind, Two-arms, Placebo-controlled, Randomized, Parallel-group Clinical Trial to Evaluate the Efficacy and Safety of 2-day Pre-treatment With Fexofenadine in Patients Suffering From Seasonal Allergic Rhinitis
This study is a proof-of-concept study to demonstrate if a daily dose of a 2-days pre-treatment of Fexofenadine 180mg is effective in alleviating the AR symptoms and to assess the additional benefit to the patient in terms of preventing Allergic Rhinitis (AR) symptoms. The total study duration per participant is expected at least 4 months, depending on the timing of the screening visit. 5 visits are planned, screening, confirmation inclusion challenge, randomization visit, challenge and end of study visit.
The end of the study is defined as the date of the last visit of the last participant in the study. A participant is considered to have completed the study if he/she has completed all visits of the study including Visit 5 (Day 5). ;
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