Conditions: Perennial Allergic Rhinitis
Allocation: RANDOMIZED | Intervention model: PARALLEL
Enrollment: 581
Healthy volunteers: no

Brief summary:
The purpose of this study is to determine if two allergy medications are more effective than placebo.

Detailed description:

Arms:
arm 1: Placebo arm 2: 0.15% azelastine hydrochloride 1644 mcg/2 sprays per nostril 2 times a day for 4 weeks arm 3: 0.1% azelastine hydrochloride 1096 mcg/2 sprays per nostril 2 times a day for 4 weeks

Interventions: intervention 1: 0.15% azelastine hydrochloride intervention 2: 0.1% azelastine hydrochloride intervention 3: Placebo
Intervention descriptions: intervention 1: 0.15% azelastine hydrochloride 1644 mcg intervention 2: 0.1% azelastine hydrochloride 1096 mcg intervention 3: Placebo

Protocol document: