This is an open-label, multicenter study designed to assess the safety of intranasal administration of 400 μg of fluticasone propionate twice a day delivered by the OptiNose device in subjects with chronic sinusitis with or without nasal polyps. The study consists of an up-to-7-day pretreatment phase followed a 3-month open-label treatment phase. The duration of each subject's participation is approximately 13 weeks.
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Adverse Events
Timeframe: Baseline to 3 months or End of Study