The Confirmatory Study of TAU-284 in Pediatric Patients With Perennial Allergic Rhinitis

Inclusion Criteria: * Patients aged between 7 and 15 years * Patients who have received a diagnosis of perennial allergic rhinitis according to the diagnostic criteria * Patients with a mean rhinorrhea score and a mean sneezing score of at least 2 on the basis of symptoms recorded in the nasal allergy diary during the observation period etc. Exclusion Criteria: * Patients with vasomotor rhinitis or eosinophilic rhinitis * Patients who have concurrent nasal disease that may affect the efficacy of TAU-284 * Patients with a history of any of the nasal surgical procedures * Patients who have a positive result for pollen antigens which are dispersed during the study period * Patients who have a positive result for dog dander or cat dander antigen and have a chance to touch dogs or cats. * Patients with current or previous history of drug allergy * Patients who concurrently have renal function abnormalities that may cause safety problems etc.