Conditions: Perennial Allergic Rhinitis
Allocation: RANDOMIZED | Intervention model: PARALLEL
Enrollment: 1365
Healthy volunteers: no

Brief summary:
This study will assess the ability of montelukast to improve the signs and symptoms of perennial allergic rhinitis compared to placebo. Cetirizine is included in the study as an active control.

Detailed description:

Arms:
arm 1: montelukast arm 2: cetirizine arm 3: placebo

Interventions: intervention 1: montelukast sodium intervention 2: Comparator: cetirizine intervention 3: Comparator: placebo
Intervention descriptions: intervention 1: montelukast 10 mg tablet orally once daily at bedtime for 6 weeks intervention 2: cetirizine 10 mg tablet orally once daily at bedtime for 6 weeks intervention 3: placebo tablet orally once daily at bedtime for 6 weeks

Protocol document: