Anti-inflammatory effect of itraconazole in stable allergic bronchopulmonary aspergillosis: a randomized controlled trial
Author:
Wark PA, Hensley MJ, Saltos N, Boyle MJ, Toneguzzi RC, Epid GD, Simpson JL, McElduff P, Gibson PG
Date: 29 November 2007
Abstract:
BACKGROUND: Allergic bronchopulmonary aspergillosis (ABPA) complicates chronic asthma and results from hypersensitivity to the fungus Aspergillus fumigatus, causing an intense systemic immune response and progressive lung damage. !
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!OBJECTIVE: We sought to determine whether treatment with the antifungal agent itraconazole reduced eosinophilic airway inflammation in subjects with ABPA. !
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!METHODS: A randomized, double-blind, placebo-controlled trial was performed in stable subjects with ABPA (n = 29). Subjects received 400 mg of itraconazole per day (n = 15) or placebo (n = 14) for 16 weeks. All subjects were reviewed monthly with history, spirometry, and sputum induction to measure airway inflammation, serum total IgE and IgG levels to A fumigatus, and blood eosinophil counts. !
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!RESULTS: By using regression analysis in a random-effects model, subjects receiving itraconazole had a decrease in sputum eosinophils of 35% per week, with no decrease seen in the placebo arm (P <.01). Sputum eosinophil cationic protein levels decreased with itraconazole treatment by 42% per week compared with 23% in the placebo group (P <.01). Itraconazole reduced systemic immune activation, leading to a decrease in serum IgE levels (310 IU/mL) compared with levels seen in the placebo group (increase of 18 IU/mL, P <.01) and a decrease in IgG levels to A fumigatus (15.4 IU/mL) compared with levels seen in the placebo group (increase of 3.7 IU/mL, P =.03). There were fewer exacerbations requiring oral cortico-steroids in those treated with itraconazole compared with in the placebo group (P =.03). !
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!CONCLUSION: Itraconazole treatment of subjects with stable ABPA reduces eosinophilic airway inflammation, systemic immune activation, and exacerbations. These results imply that itraconazole is a potential adjunctive treatment for ABPA.
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