Overview Singulair(R) In Asthma And Allergic Rhinitis (0476-383) Status: Completed Trial end date: 2008-01-01 Target enrollment: Participant gender: Summary Effectiveness of adding montelukast to inhaled corticosteroids in adult subjects with both uncontrolled asthma and allergic rhinitis. Phase: Phase 4 Details Lead Sponsor: Merck Sharp & Dohme Corp.Treatments: Montelukast