Double-blind, Three Parallel Randomized Groups, Therapeutic Confirmatory Clinical Trial to Compare the Efficacy of Oral Levocetirizine 5 mg and Montelukast 10 mg to Placebo in Reducing Symptoms of Seasonal Allergic Rhinitis (SAR) in Ragweed Sensitive Subjects Exposed to Ragweed Pollen in an Environmental Exposure Unit (EEU)
Abstract
To compare the clinical efficacy of levocetirizine 5 mg and montelukast 10 mg on symptoms of seasonal allergic rhinitis occurring in subjects exposed to ragweed pollen in an environmental exposure unit.
Conditions: Rhinitis, Allergic, Seasonal.
Primary outcome: Change From Baseline in the Major Symptom Complex (MSC) Score Over Period I.
Enrollment: 418 participants.
How strong is the evidence?
Evidence Hub reads this as a randomized trial, done in people. Its evidence level is 2 of 5 (High · randomized trial). Randomized trials of a reasonable size are the strongest single-study design. Reported size: 418 participants or records.
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