Itraconazole Improved Bronchial Wall Thickness in Severe Persistent Asthma: A Double-blind Placebo-controlled Randomized Clinical Trial
The purpose of this study was to evaluate the effect of 8 months of treatment with itraconazole on airway wall thickness in patients with severe persistent asthma.
It was a double-blind, randomized, placebo-controlled clinical trial (IRCT20091111002695N9). Seventy-five subjects with severe persistent asthma received itraconazole (100 mg), prednisolone (5 mg), or placebo twice a day for eight months in three treatment groups (n=25 in each group). The primary objective was to improve the right upper lobe apical segmental bronchus (RB1) wall thickness percentage measured by high-resolution computed tomography scan of the lungs. Other morphometric measurements of RB1, asthma control test (ACT) score, presence of wheezing, dyspnea severity, rate of asthma exacerbation, fractional exhaled nitric oxide (FeNO), and expiratory volume in 1 second (FEV1) were set as the secondary outcomes.
Wall thickness percentage reduced significantly from 46% to 43.7% from pre- to post-treatment in the itraconazole-treated subjects. Similarly, lumen area and radius increased significantly in both the prednisolone and itraconazole groups. Itraconazole led to a significant improvement in wheezing, dyspnea severity, FEV1, ACT score, and FeNO. Although prednisolone was also effective in improving pulmonary function tests and ACT scores, it was associated with significantly more side effects than itraconazole.
Long-term treatment with itraconazole resulted in a significant reduction in bronchial wall thickness and improvements in clinical findings and pulmonary function tests. Thus, itraconazole could be a helpful add-on treatment option for severe persistent asthma patients to achieve better disease control.
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|Issue||Vol 22 No 1 (2023)|
|Airway remodeling Asthma Itraconazole X-ray computed tomography|
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