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Clinical Trial Summary

Objective: To evaluate whether long-term oral N-acetylcysteine as an expectorant drug can reduce the frequency of acute exacerbations of patients with non-cystic fibrosis bronchiectasis and improve their quality of life.

Methods: Patients with non-cystic fibrosis bronchiectasis will be randomly assigned to the observer group (participants receive 600 mg of oral N-acetylcysteine BID for 12 months) or the control group (participants receive oral tablet BID for 12 months). The primary endpoint was the frequency of acute exacerbations.

Expected results: Compared with the control group, the frequency of acute exacerbations of the observer Group will decrease significantly.

Hypothesis: Long-term oral N-acetylcysteine can reduce the frequency of acute exacerbations of patients with non-cystic fibrosis bronchiectasis and improve their quality of life.


Clinical Trial Description

Objective: N-acetylcysteine is a classic mucolytic agent. This study aimed to investigate the efficacy and safety of N-acetylcysteine on the risk of exacerbations in bronchiectasis patients.

Methods: A prospective, randomized, controlled trial was conducted between April 1, 2014 and December 31, 2016 in five general hospitals in Shandong Province, China. Adult bronchiectasis patients with at last two exacerbations in the past year were potentially eligible. Patients were randomly assigned to receive oral N-acetylcysteine (600 mg, twice daily, 12 months) or on-demand treatment.

Results: A total of 161 patients were eligible for randomization (81 to the N-acetylcysteine group and 80 to the control group). During the 12-month follow-up, the incidence of exacerbations in the N-acetylcysteine group was significantly lower than that in the control group (1.31 vs. 1.98 exacerbations per patient-year; risk ratio, 0.41; 95% CI, 0.17-0.66; P = 0.0011). The median number of exacerbations in the N-acetylcysteine group was 1 (0.5-2), compared with 2 (1-2) in the control group (U=-2.95, P = 0.003). No severe adverse events were reported in the intervention group.

Conclusion: The long-term use of N-acetylcysteine is able to reduce the risk of exacerbations for bronchiectasis patients. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT02088216
Study type Interventional
Source Qilu Hospital of Shandong University
Contact
Status Completed
Phase N/A
Start date April 1, 2014
Completion date March 30, 2018

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