Combined Administration of Nebulized Amikacin in Patients With Acute Exacerbation of Non-Cystic Fibrosis Bronchiectasis

Objective: To assess the efficacy, indications and adverse reactions of combined administration of nebulized amikacin in patients with acute exacerbation of non-cystic fibrosis bronchiectasis and to evaluate whether inhaled antibiotics are more likely to cause bacterial resistance.

Methods: Patients with acute exacerbation of non-cystic fibrosis bronchiectasis will be randomly assigned to the observer group (participants receive nebulized amikacin BID for 14 days in combination with standard treatment) or the control group (participants receive nebulized 0.9% saline BID for 14 days in combination with standard treatment). The primary endpoint was bacterial clearance rate of sputum.

Expected results: Compared with the control group, bacterial clearance rate of sputum of the observer Group will increase significantly.

Inclusion criteria

• Male or female study subjects ≥18 years of age and ≤80 years of age;
• Confirmed diagnosis of idiopathic bronchiectasis or postinfectious bronchiectasis;
• Confirmation of infection with Pseudomonas aeruginosa at screening;
• Are sensitive to amikacin;
• Acute exacerbation of bronchiectasis.

Exclusion criteria

• Bronchiectasis due to special causes;
• Smokers;
• Are associated with bronchial asthma;
• Have any serious or active medical or psychiatric illness;
• Be allergic to amikacin or not tolerant to nebulised amikacin(FEV1 reduces ≥15% after inhaling amikacin.