Fluticasone propionate and fluticasone propionate/salmeterol multidose dry powder inhalers compared with placebo for persistent asthma
A novel, inhalation-driven, multidose dry powder inhaler (MDPI) has been developed, which allows for lower doses of fluticasone propionate (Fp) and Fp/salmeterol (FS) for the treatment of patients with asthma.
This phase III, multicenter, double-blind, parallel-group study (NCT02141854) evaluated the efficacy and safety of Fp MDPI and FS MDPI versus placebo MDPI.
Patients aged ≥12 years with persistent asthma who previously took an inhaled corticosteroid with or without a long-acting beta-agonist entered a 14- to 21-day run-in period, during which they received single-blind, low-dose Fp MDPI 50 μg (1 inhalation twice daily [b.i.d.]) and used albuterol hydrofluoroalkane (HFA) metered-dose inhaler (MDI) for rescue. The patients who continued to meet eligibility criteria (N = 728) were randomized to Fp MDPI (100 or 200 μg), FS MDPI (100 μg/12.5 μg or 200 μg/12.5 μg), or placebo (1 inhalation b.i.d.). Primary efficacy end points were the change from baseline in forced expiratory volume in 1 second (FEV1) and the baseline-adjusted area under the FEV1 curve 12 hours after the dose at week 12. Secondary efficacy end points were A.M. peak expiratory flow, asthma symptom scores, albuterol HFA MDI use, time to patient withdrawal, Asthma Quality of Life scores, and time to 15% and 12% improvement from baseline in FEV1. Safety end points were monitored.
Fp MDPI and FS MDPI significantly improved both primary end points compared with placebo (p < 0.05). FS MDPI significantly improved both end points versus the corresponding Fp MDPI dose (p < 0.05), with improvement also greater for FS MDPI 100 μg/12.5 μg versus Fp MDPI 200 μg (p < 0.05). Both active treatments improved a variety of secondary end points and exhibited a safety profile consistent with the drug classes.
Delivery of Fp and FS via the novel MDPI provided significant clinical benefits and was well tolerated in patients with persistent asthma.
Keywords: Asthma; efficacy; fluticasone; forced expiratory volume; inhalation device; inhaled corticosteroids; long-acting beta-2 agonists; randomized controlled trial; safety; salmeterol xinafoate; spirometry
Document Type: Research Article
Publication date: September 1, 2017
This article was made available online on June 21, 2017 as a Fast Track article with title: "Fluticasone propionate and fluticasone propionate/salmeterol multidose dry powder inhalers compared with placebo for persistent asthma".
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