Combination Study Of S-555739/Cetirizine HCl In Adult Patients With Seasonal Allergic Rhinitis

A Phase 2, Multicenter, Parallel-Group, Randomized, Double-Blind, Placebo- And Active Comparator-Controlled, Combination Study Of S-555739 And Cetirizine HCl In Adult Patients With Seasonal Allergic Rhinitis

The primary objective of the study was to examine the efficacy and safety of S-555739/cetirizine HCl compared with the individual components and placebo.

Inclusion Criteria:

• History and diagnosis of seasonal allergic rhinitis by skin prick test
• Have nasal symptom scores as defined by the study protocol
• Able to comply with study procedures

Exclusion Criteria:

• Any nasal disease or abnormality, active respiratory tract infections within the past 2 weeks, or recent nasal surgery or sinus surgery at Screening
• Use of any prohibited concomitant drugs or therapies