Effect of mometasone furoate nasal spray on moderate-to-severe nasal congestion in seasonal allergic rhinitis: A responder analysis
Nasal congestion is consistently identified as the most bothersome symptom of seasonal allergic rhinitis (SAR), and, in guidelines, intranasal corticosteroids are the preferred treatment for nasal congestion.
The aim of this post hoc cumulative responder analysis was to examine the nasal congestion response in detail by depicting the level of response obtained in two double-blind, placebo controlled studies of mometasone furoate nasal spray (MFNS) therapy for SAR, conducted from August to October 2008 at U.S. sites, in which nasal congestion was prespecified as the primary end point.
Patients ≥12 years of age with a ≥2-year SAR history, positive skin test result, and moderate or severe nasal congestion were randomly assigned to once-daily treatment in the morning with MFNS or placebo for 15 days. The primary end point was the change from baseline in morning and evening reflective nasal congestion scores averaged over days 1‐15. Treatment response, which ranged from >0% to >90% improvement, was evaluated at 10% intervals; >30% and >50% improvements were further evaluated by using the Mietinnen-Nurminen method weighted by study to test the differences of proportions. The Breslow-Day equal odds ratios test was used to justify pooling.
Of the 344 and 340 patients in the MFNS and placebo groups, respectively, the proportions of patients who experienced a >30% response in nasal congestion, averaged over 15 days, were 37% versus 19% in the MFNS and placebo groups, respectively (p < 0.001). Those who experienced a >50% response were 13% and 7%, respectively (p = 0.003). Among the patients treated with MFNS, the mean response was greater during the second versus the first week of treatment. There was no difference between responses in the morning versus evening or for patients with moderate versus severe nasal congestion at baseline.
MFNS is effective in relieving moderate-to-severe nasal congestion in patients with SAR. The response to MFNS is maintained with once-daily administration and improves with continuous use over 2 weeks.
Keywords: Allergic rhinitis; mometasone furoate nasal spray; nasal congestion; post hoc study; responder analysis; seasonal allergic rhinitis; symptom score; total nasal symptom score; total symptom score
Document Type: Research Article
Affiliations: 1: From Global Medical Affairs 2: Center for Observational and Real-World Evidence (CORE) 3: Biostatistics and Research Decision Sciences, Merck & Co., Inc., Kenilworth, New Jersey
Publication date: May 1, 2019
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