['Montelukast, a cysteinyl leukotriene type-1 receptor blocker, has been shown in small retrospective studies to reduce symptoms in patients with eosinophilic esophagitis (EoE). We performed a randomized, placebo-controlled, double-blind trial to determine whether montelukast maintains symptomatic remission induced by topical steroid therapy in patients with EoE.', 'We performed a prospective study of adult patients with EoE (solid-food dysphagia and a peak esophageal eosinophil count of >20 cells/high-powered field) enrolled at the Mayo Clinic in Rochester, Minnesota, from April 2008 through February 2015. All patients had been treated previously for at least 6 weeks with a topical steroid until their symptoms were in remission. Steroids were discontinued and patients then were assigned randomly to groups given montelukast (20 mg/day, n\xa0= 20) or placebo (n\xa0= 21) for 26 weeks (groups were matched for age, sex, history of allergic disease, reflux symptoms, and endoscopic findings of EoE). Study participants were assessed via a structured telephone interview at weeks 2, 4, 8, 12, 16, 20, and 24. Remission was defined as the absence of solid-food dysphagia.', 'Based on an intention-to-treat analysis, after 26 weeks, 40.0% of subjects in the montelukast group and 23.8% in the placebo group were in remission. The odds ratio for remission in the montelukast group was 0.48 (95% confidence interval, 0.10-2.16) (P\xa0= .33). No side effects were reported from either group.'] Does montelukast Maintain Symptom Remission After Topical Steroid Therapy for Eosinophilic Esophagitis?