Overview MK0476 Study in Adult Patients With Perennial Allergic Rhinitis (0476-397)(COMPLETED) Status: Completed Trial end date: 2005-02-01 Target enrollment: Participant gender: Summary A clinical study evaluates the efficacy and safety of MK0476 in adult patients with Perennial Allergic rhinitis. Phase: Phase 3 Details Lead Sponsor: Merck Sharp & Dohme Corp.Treatments: Montelukast