Multicenter, Double-blind, Randomized, Placebo-controlled Study of Mometasone Furoate Nasal Spray in Pediatric Subjects With Perennial Allergic Rhinitis (Study P06332)

Inclusion Criteria: * Pediatric subjects with perennial allergic rhinitis who satisfy all of the following main criteria: * Subjects having symptoms of perennial allergic rhinitis of moderate to severe degree, after the pretreatment observation period. * Subjects confirmed to be allergic to non-seasonal environmental antigens (e.g., house dust-mite antigen). * Male or female outpatients aged 5 to 15 years at the time of providing informed consent. Exclusion Criteria: * Subjects for whom any of the main exclusion criteria below is applicable will not be registered in this study. * Subjects with coexisting tuberculous disease or lower respiratory tract infection and subjects who have a nasopharyngolaryngeal infection (acute upper respiratory tract infection, acute pharyngolaryngitis, or acute tonsillitis, etc.) requiring treatment at the time of registration * Subjects with coexisting infections or systemic mycosis for which there are no effective antibiotics * Subjects with repeated epistaxis * Subjects who have nasal septum ulcers, nasal surgery, or nasal trauma, which have not healed * Subjects with severe hepatic, renal, cardiac, hematological disease, diabetes mellitus, hypertension, or other serious coexisting diseases and whose general condition is poor * Subjects with complication of vasomotor rhinitis or eosinophilic rhinitis. * Subjects with nasal conditions (infectious sinusitis, hypertrophic rhinitis, acute or chronic rhinitis, nasal polyps, septal deviation, etc.) which may interfere with the evaluation of the efficacy of the study drug.