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Onset and duration of action of nasal sprays in seasonal allergic rhinitis patients: Olopatadine hydrochloride versus mometasone furoate monohydrate

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Rapid relief of symptoms should be one of the primary goals of treatment for allergic rhinitis (AR). The onset and duration of action of olopatadine hydrochloride nasal spray, 665 mcg (OLO; Patanese), for seasonal AR (SAR) was evaluated in this study. This study was performed to determine the onset and duration of action of OLO compared with placebo spray, with mometasone furoate monohydrate, 50 mcg (MM; Nasonex), as a reference standard. This was a single center, single-dose, randomized, double-blinded parallel-group environmental exposure chamber study. Patients were primed at two 2-hour priming visits. Eligible patients were randomized to OLO, placebo spray, or MM, 2 sprays/nostril. Allergy symptoms (sneezing, runny, itchy, and stuffy nose) were rated by patients at 16 time points during 12 hours after dosing and patient satisfaction was assessed at 4 and 12 hours postdose. Safety was assessed by a review of adverse events, cardiovascular and nasal examination parameters. Four hundred twenty-five adult patients were randomized. OLO was superior to placebo spray in reducing total nasal symptoms (TNSS) within 30 minutes after dosing and maintained superiority for at least 12 hours (p < 0.05). The onset of MM was not observed until 150 minutes postdose and was smaller in magnitude compared with OLO. OLO was superior to both placebo spray (p < 0.0001) and MM (p < 0.05) in patient satisfaction. Treatment was well-tolerated with no safety concerns. OLO is superior to placebo spray and MM in reducing allergy symptoms; OLO has a rapid onset of action and a duration of effect of at least 12 hours.
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Keywords: Antihistamine; clinical trial; double-blind placebo controlled; environmental exposure chamber; intranasal corticosteroid; mometasone furoate monohydrate nasal spray; olopatadine hydrochloride nasal spray; seasonal allergic rhinitis; treatment comparison

Document Type: Research Article

Affiliations: 1: From the Allied Research International, Inc., Mississauga, Ontario, Canada, and 2: Alcon Research, Ltd., Fort Worth, Texas

Publication date: 2007-09-01

More about this publication?
  • Allergy and Asthma Proceedings is a peer reviewed publication dedicated to distributing timely scientific research regarding advancements in the knowledge and practice of allergy, asthma and immunology. Its primary readership consists of allergists and pulmonologists.

    The goal of the Proceedings is to publish articles with a predominantly clinical focus which directly impact quality of care for patients with allergic disease and asthma.

    Featured topics include asthma, rhinitis, sinusitis, food allergies, allergic skin diseases, diagnostic techniques, allergens, and treatment modalities. Published material includes peer-reviewed original research, clinical trials and review articles.

    Articles marked "F" offer free full text for personal noncommercial use only.

    The journal is indexed in Thomson Reuters Web of Science and Science Citation Index Expanded, plus the National Library of Medicine's PubMed service.
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