• total nasal symptom score
  

• average total nasal symptom scores over various timepoints average individual symptom scores
  
• global assessment of perennial allergic rhinitis symptoms
  
• instantaneous assessment of symptoms
  
• change from baseline in quality of life assessments
  
• physical and anterior nasal exams
  
• laboratory tests
  
• ECG
  
• vital signs
  
• adverse events
  

Inclusion Criteria:

• Have a documented history of allergy to perennial allergens and demonstrated sensitivity by the results of prick or intradermal skin testing.
• Have a self-reported history of at least mild, intermittent rhinorrhea and nasal blockage/stuffiness due to allergies.
• Have not started or had a change in immunotherapy regimen.

Exclusion Criteria:

• Have a physical obstruction in the nose.
• Will likely have an acute increase in severity of allergic rhinitis due to seasonal aeroallergens during the trial.
• Have acute or chronic sinusitis or had previous sinus surgery resulting in a significant change in the sinus or nasal anatomy.
• Have rhinitis medicamentosa or any other acute or chronic condition that could confound evaluations of nasal symptoms.
• Have asthma of sufficient severity to require use of excluded medications.
• Have taken any medications excluded as listed in the protocol.
• Have a clinically significant acute or chronic disease or clinically significant laboratory abnormality.
• Are a current smoker, recent smoker or past smoker as defined in the protocol.