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J Allergy Clin Immunol. 2005 Jan;115(1):125-31.

Treatment of chronic rhinosinusitis with intranasal amphotericin B: a randomized, placebo-controlled, double-blind pilot trial.

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Department of Otorhinolaryngology-Head and Neck Surgery, Mayo Clinic, Rochester, MN 55905, USA.



Chronic rhinosinusitis (CRS) is one of the most common chronic diseases. Its etiology is unknown, and there is a paucity of effective medical treatments.


We tested the hypothesis that intranasal antifungal treatment improves the objective computed tomography (CT) findings (inflammatory mucosal thickening), nasal endoscopy stages, and symptoms of CRS.


A randomized, placebo-controlled, double-blind, single-center trial used amphotericin B to treat 30 randomly selected patients with CRS. Patients were instructed to instill 20 mL amphotericin B (250 mug/mL) or placebo to each nostril twice daily for 6 months. The primary outcome was a quantitative reduction in inflammatory mucosal thickening on CT scans of a standardized coronal cut. Secondary outcome measures were endoscopic scores, patient symptom scores, and levels of intranasal inflammatory mediators.


Twenty-four patients completed the 6 months of treatment. Patients receiving amphotericin B achieved a relative reduction in the percentage of mucosal thickening on CT scans (n = 10; -8.8%) compared with placebo (n = 14; +2.5%; P = .030). Likewise, the changes in the endoscopic scores improved in the amphotericin B group compared with placebo ( P = .038). Between-group comparisons of the changes in the intranasal mucus levels of eosinophil-derived neurotoxin showed a reduction in the amphotericin B group and an increase in the placebo group ( P = .046); levels of IL-5 showed similar tendencies ( P = .082).


Intranasal amphotericin B reduced inflammatory mucosal thickening on both CT scan and nasal endoscopy and decreased the levels of intranasal markers for eosinophilic inflammation in patients with CRS.

[Indexed for MEDLINE]

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