BronchiectasisNCT05731427
Research on the Mechanism Affecting Progression of Bronchiectasis
An observational study of Bronchiectasis, run by Union Hospital, Tongji Medical College, Huazhong University of Science and Technology at 3 sites in China.
Trial summary
Bronchiectasis is a chronic inflammatory respiratory disease defined as the irreversible dilatation of one or more bronchi and is associated with chronic and frequently purulent expectoration, multiple exacerbations and progressive dyspnea. Bronchiectasis has a large heterogeneity. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Bronchiectasis
- What is being tested?
- Pseudomonas aeruginosa colonization infection and Macrolides
- How many people
- 150 participants
- Where
- 3 sitesChina
- Study dates
- 1 Feb 2021to 31 Dec 2030
- Phase
- Observational
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Study population: All patients with bronchiectasis was recruited from Wuhan Union Hospital.
Who may be able to join
- 18 years or older
- Bronchiectasis confirmed by high-resolution computed tomographic scan(HRCT)
- Chronic expectoration with ability to provide a sputum sample at the study visit
- Provision of written informed consent
Who cannot join
- Traction bronchiectasis
- Lack of important clinical information
Trial locations and contacts
3 sites in 1 country. Contact the study team or a site near you to ask about taking part.
China3 sites, 3 recruiting
- Recruiting
Guizhou Provincial people's Hospital
Guiyang, Guizhou, 550002
Lin Liu, Ph.D., M.D., +8615199108915, liulin0956@163.com
- Recruiting
Wuhan Union Hospital
Wuhan, Hubei, 430022
Xiaorong Wang, 18627195231 ext. +86, rong-100@163.com
- Recruiting
Department of Respiratory and Critical Care Medicine, Yichang Central People's Hospital
Yichang, Hubei, 443000
Xinyu Song, +86 17767627725, songxinyu@ctgu.edu.cn
About this study
Official title: Research on the Mechanism Affecting Progression of Bronchiectasis Based on Omics Method
Bronchiectasis is a chronic inflammatory respiratory disease defined as the irreversible dilatation of one or more bronchi and is associated with chronic and frequently purulent expectoration, multiple exacerbations and progressive dyspnea. Bronchiectasis has a large heterogeneity. Different patients with bronchiectasis may have different etiology, clinical manifestations, and imaging features. Previous studies showed that there are significant relationship between the airway microbiome and the severity of the disease. For example, patient with airway Pseudomonas aeruginosa colonization has heavier symptoms, heavier severity, poorer quality of life, more acute exacerbations, and worse prognosis. A large number of studies have reported that long-term treatment of low-dose macrolides such as azithromycin or clarithromycin has anti-inflammatory and immunomodulatory effects, which can improve the clinical symptoms and disease progression of various chronic airway diseases, such as diffuse panbronchiolitis, chronic obstructive pulmonary disease, bronchiectasis. Both the 2017 European Respiratory Society guidelines and the 2019 British Thoracic Society Guideline recommend macrolide drugs for the treatment of chronic Pseudomonas aeruginosa colonization bronchiectasis or frequent acute exacerbations bronchiectasis, but the specific mechanism is unknown.This study is based on omics methods (Microbiology and Metabolomics) to deeply explore the composition of airway and gut microbiota in patients with bronchiectasis, the factors affecting the colonization of Pseudomonas aeruginosa and the mechanism of macrolides in the treatment of bronchiectasis.
This project is a multicenter clinical study involving patients with bronchiectasis from Wuhan Union Hospital, Guizhou Provincial People's Hospital, and Yichang Central People's Hospital. Patients with bronchiectasis were recruited according to the inclusion and exclusion criteria. Clinical data were collected from these patients (including demographic information, clinical characteristics, pulmonary function, and lung imaging), along with spontaneously expectorated sputum, feces, and peripheral blood, and the patients were followed for 24 months. The microbiome, metabolome, and cytokines in sputum and feces were assessed, as well as cytokines, inflammatory mediators, and metabolites in peripheral blood.
Through the above methods,investigators further understand the mechanism affecting progression of bronchiectasis and some factors that lead to the colonization of Pseudomonas aeruginosa, as well as mechanisms of macrolides in the treatment of bronchiectasis.
Read the detailed description
Clinical information:
Demographic information,blood test results,lung function,severity of disease was evaluated using the E-FACED and the Bronchiectasis Severity Index (BSI).The severity of dyspnea was assessed using the Medical Research Council (MRC) grade, and lung radiological severity was assessed using the modified Reiff score and Bhalla score.
Sputum collection:
We collect sputum samples from patients with bronchiectasis. We divided into two parts from each sputum sample, one part was immediately stored -80℃ for microbiota sequencing. The other part was diluted with PBS and centrifuged at 12000g for 5 minutes, and the supernatant was stored at -80°C for measurement of inflammatory factors, oxidative stress and other markers.
Stool collection:
We collect stool samples from patients with bronchiectasis.Fresh stools were processed in the laboratory within 30 min after collection and stored at -80°C until analysis.
Peripheral blood collection:
We collect peripheral blood samples from patients with bronchiectasis to detect inflammatory mediators and so on.
- Conditions
- Bronchiectasis
- Being tested
- Pseudomonas aeruginosa colonization infection, Macrolides
- Keywords
- Bronchiectasis, Microbiota, Pseudomonas aeruginosa
- Medical subject headings
- Bronchiectasis, Pseudomonas Infections
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Pseudomonas aeruginosa colonization infectionDiagnostic test
With or without airway Pseudomonas aeruginosa colonization infection
MacrolidesDrug
Before or after 6 months of treatment with macrolides for patients with bronchiectasis
| Study group | Role | What they receive |
|---|---|---|
| Pseudomonas aeruginosa colonization group | Colonization of Pseudomonas aeruginosa in the airways of patients with bronchiectasis Receives: Diagnostic Test: Pseudomonas aeruginosa colonization infection | |
| Non-Pseudomonas aeruginosa colonization group | No colonization of Pseudomonas aeruginosa in the airways of patients with bronchiectasis Receives: Diagnostic Test: Pseudomonas aeruginosa colonization infection | |
| Before treatment with macrolides | Before treatment with macrolides in patients with bronchiectasis Receives: Drug: Macrolides | |
| After treatment with macrolides | After 6 months of treatment with macrolides for patients with bronchiectasis Receives: Drug: Macrolides |
What is being measured
The primary outcome is the main question the study is designed to answer.
Acute exacerbations and mortality
The number of acute exacerbations and outcome (death or survival) of patients with bronchiectasis after one year.
Measured: February 10, 2026
Secondary outcomes (3)
Lung function
Forced expiratory volume in 1s (FEV1),Forced vital capacity（FVC）
Measured: February 10, 2026
Symptoms assessment
MRC score,cough score,sputum purulent score,sputum volume score and hemoptysis score
Measured: February 10, 2026
Stool and sputum microtioba
Stool and sputum microtioba from patients with bronchiectasis after one year
Measured: February 10, 2026
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted16 Feb 2023
- Study start1 Feb 2021
- Primary completion31 Dec 2030 (estimated)
- Study completion31 Dec 2030 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (13)Papers the sponsor has linked to this study.
- Other trials for BronchiectasisStudies of the same condition, open and under way.
- More trials run by Union Hospital, Tongji Medical College, Huazhong University of Science and TechnologyThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Case-control
- Time perspective
- Prospective
- Enrolment
- 150 participants (estimated)
Sponsor and investigators
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Wang xiaorong, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology
- Investigators
- Xiaorong Wang, Principal investigator, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05731427
- Sponsor's protocol ID
- 2020XHHX002
- Status last verified
- Dec 2025
- First submitted
- 15 Sep 2021
- Last updated
- 5 Jan 2026
- Results posted
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Undecided
Publications
De Soyza A, Aksamit T, Bandel TJ, Criollo M, Elborn JS, Operschall E, Polverino E, Roth K, Winthrop KL, Wilson R. RESPIRE 1: a phase III placebo-controlled randomised trial of ciprofloxacin dry powder for inhalation in non-cystic fibrosis bronchiectasis. Eur Respir J. 2018 Jan 25;51(1):1702052. doi: 10.1183/13993003.02052-2017. Print 2018 Jan.
PubMed 29371383Aksamit T, De Soyza A, Bandel TJ, Criollo M, Elborn JS, Operschall E, Polverino E, Roth K, Winthrop KL, Wilson R. RESPIRE 2: a phase III placebo-controlled randomised trial of ciprofloxacin dry powder for inhalation in non-cystic fibrosis bronchiectasis. Eur Respir J. 2018 Jan 25;51(1):1702053. doi: 10.1183/13993003.02053-2017. Print 2018 Jan.
PubMed 29371384Araujo D, Shteinberg M, Aliberti S, Goeminne PC, Hill AT, Fardon TC, Obradovic D, Stone G, Trautmann M, Davis A, Dimakou K, Polverino E, De Soyza A, McDonnell MJ, Chalmers JD. The independent contribution of Pseudomonas aeruginosa infection to long-term clinical outcomes in bronchiectasis. Eur Respir J. 2018 Jan 31;51(2):1701953. doi: 10.1183/13993003.01953-2017. Print 2018 Feb.
PubMed 29386336Wang H, Ji XB, Mao B, Li CW, Lu HW, Xu JF. Pseudomonas aeruginosa isolation in patients with non-cystic fibrosis bronchiectasis: a retrospective study. BMJ Open. 2018 Mar 14;8(3):e014613. doi: 10.1136/bmjopen-2016-014613.
PubMed 29540404Martinez-Garcia MA, Olveira C, Maiz L, Giron RM feminine, Prados C, de la Rosa D, Blanco M, Agusti A. Bronchiectasis: A Complex, Heterogeneous Disease. Arch Bronconeumol (Engl Ed). 2019 Aug;55(8):427-433. doi: 10.1016/j.arbres.2019.02.024. Epub 2019 Apr 18. English, Spanish.
PubMed 31005356O'Neill K, Einarsson GG, Rowan S, McIlreavey L, Lee AJ, Lawson J, Lynch T, Horsley A, Bradley JM, Elborn JS, Tunney MM. Composition of airway bacterial community correlates with chest HRCT in adults with bronchiectasis. Respirology. 2020 Jan;25(1):64-70. doi: 10.1111/resp.13653. Epub 2019 Jul 30.
PubMed 31364220Vermeersch K, Gabrovska M, Aumann J, Demedts IK, Corhay JL, Marchand E, Slabbynck H, Haenebalcke C, Haerens M, Hanon S, Jordens P, Peche R, Fremault A, Lauwerier T, Delporte A, Vandenberk B, Willems R, Everaerts S, Belmans A, Bogaerts K, Verleden GM, Troosters T, Ninane V, Brusselle GG, Janssens W. Azithromycin during Acute Chronic Obstructive Pulmonary Disease Exacerbations Requiring Hospitalization (BACE). A Multicenter, Randomized, Double-Blind, Placebo-controlled Trial. Am J Respir Crit Care Med. 2019 Oct 1;200(7):857-868. doi: 10.1164/rccm.201901-0094OC.
PubMed 31046405Serisier DJ, Martin ML, McGuckin MA, Lourie R, Chen AC, Brain B, Biga S, Schlebusch S, Dash P, Bowler SD. Effect of long-term, low-dose erythromycin on pulmonary exacerbations among patients with non-cystic fibrosis bronchiectasis: the BLESS randomized controlled trial. JAMA. 2013 Mar 27;309(12):1260-7. doi: 10.1001/jama.2013.2290.
PubMed 23532242Wang D, Fu W, Dai J. Meta-analysis of macrolide maintenance therapy for prevention of disease exacerbations in patients with noncystic fibrosis bronchiectasis. Medicine (Baltimore). 2019 Apr;98(17):e15285. doi: 10.1097/MD.0000000000015285.
PubMed 31027086Hodge S, Reynolds PN. Low-dose azithromycin improves phagocytosis of bacteria by both alveolar and monocyte-derived macrophages in chronic obstructive pulmonary disease subjects. Respirology. 2012 Jul;17(5):802-7. doi: 10.1111/j.1440-1843.2012.02135.x.
PubMed 22288725Wong C, Jayaram L, Karalus N, Eaton T, Tong C, Hockey H, Milne D, Fergusson W, Tuffery C, Sexton P, Storey L, Ashton T. Azithromycin for prevention of exacerbations in non-cystic fibrosis bronchiectasis (EMBRACE): a randomised, double-blind, placebo-controlled trial. Lancet. 2012 Aug 18;380(9842):660-7. doi: 10.1016/S0140-6736(12)60953-2.
PubMed 22901887Hill AT, Sullivan AL, Chalmers JD, De Soyza A, Elborn JS, Floto RA, Grillo L, Gruffydd-Jones K, Harvey A, Haworth CS, Hiscocks E, Hurst JR, Johnson C, Kelleher WP, Bedi P, Payne K, Saleh H, Screaton NJ, Smith M, Tunney M, Whitters D, Wilson R, Loebinger MR. British Thoracic Society guideline for bronchiectasis in adults. BMJ Open Respir Res. 2018 Dec 28;5(1):e000348. doi: 10.1136/bmjresp-2018-000348. eCollection 2018.
PubMed 30687502Polverino E, Goeminne PC, McDonnell MJ, Aliberti S, Marshall SE, Loebinger MR, Murris M, Canton R, Torres A, Dimakou K, De Soyza A, Hill AT, Haworth CS, Vendrell M, Ringshausen FC, Subotic D, Wilson R, Vilaro J, Stallberg B, Welte T, Rohde G, Blasi F, Elborn S, Almagro M, Timothy A, Ruddy T, Tonia T, Rigau D, Chalmers JD. European Respiratory Society guidelines for the management of adult bronchiectasis. Eur Respir J. 2017 Sep 9;50(3):1700629. doi: 10.1183/13993003.00629-2017. Print 2017 Sep.
PubMed 28889110
Study at a glance
From the registry record, last updated by the sponsor on 5 Jan 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Research on the Mechanism Affecting Progression of Bronchiectasis Based on Omics Method
- ClinicalTrials.gov ID
- NCT05731427
- Acronym / sponsor ID
- 2020XHHX002
- Conditions
- Bronchiectasis
- Keywords
- Bronchiectasis, Microbiota, Pseudomonas aeruginosa
- Study type
- Observational
- Recruitment status
- Recruiting
- Enrolment
- 150 participants (estimated)
- Lead sponsor
- Union Hospital, Tongji Medical College, Huazhong University of Science and TechnologyUniversity, hospital or other
- Study start
- 1 Feb 2021 (actual)
- Primary completion
- 31 Dec 2030 (estimated)
- Study completion
- 31 Dec 2030 (estimated)
- First posted
- 16 Feb 2023 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Bronchiectasis is a chronic inflammatory respiratory disease defined as the irreversible dilatation of one or more bronchi and is associated with chronic and frequently purulent expectoration, multiple exacerbations and progressive dyspnea. Bronchiectasis has a large heterogeneity. Different patients with bronchiectasis may have different etiology, clinical manifestations, and imaging features. Previous studies showed that there are significant relationship between the airway microbiome and the severity of the disease. For example, patient with airway Pseudomonas aeruginosa colonization has heavier symptoms, heavier severity, poorer quality of life, more acute exacerbations, and worse prognosis. A large number of studies have reported that long-term treatment of low-dose macrolides such as azithromycin or clarithromycin has anti-inflammatory and immunomodulatory effects, which can improve the clinical symptoms and disease progression of various chronic airway diseases, such as diffuse panbronchiolitis, chronic obstructive pulmonary disease, bronchiectasis. Both the 2017 European Respiratory Society guidelines and the 2019 British Thoracic Society Guideline recommend macrolide drugs for the treatment of chronic Pseudomonas aeruginosa colonization bronchiectasis or frequent acute exacerbations bronchiectasis, but the specific mechanism is unknown.This study is based on omics methods (Microbiology and Metabolomics) to deeply explore the composition of airway and gut microbiota in patients with bronchiectasis, the factors affecting the colonization of Pseudomonas aeruginosa and the mechanism of macrolides in the treatment of bronchiectasis.
This project is a multicenter clinical study involving patients with bronchiectasis from Wuhan Union Hospital, Guizhou Provincial People's Hospital, and Yichang Central People's Hospital. Patients with bronchiectasis were recruited according to the inclusion and exclusion criteria. Clinical data were collected from these patients (including demographic information, clinical characteristics, pulmonary function, and lung imaging), along with spontaneously expectorated sputum, feces, and peripheral blood, and the patients were followed for 24 months. The microbiome, metabolome, and cytokines in sputum and feces were assessed, as well as cytokines, inflammatory mediators, and metabolites in peripheral blood.
Through the above methods,investigators further understand the mechanism affecting progression of bronchiectasis and some factors that lead to the colonization of Pseudomonas aeruginosa, as well as mechanisms of macrolides in the treatment of bronchiectasis.
Detailed description
Clinical information:
Demographic information,blood test results,lung function,severity of disease was evaluated using the E-FACED and the Bronchiectasis Severity Index (BSI).The severity of dyspnea was assessed using the Medical Research Council (MRC) grade, and lung radiological severity was assessed using the modified Reiff score and Bhalla score.
Sputum collection:
We collect sputum samples from patients with bronchiectasis. We divided into two parts from each sputum sample, one part was immediately stored -80℃ for microbiota sequencing. The other part was diluted with PBS and centrifuged at 12000g for 5 minutes, and the supernatant was stored at -80°C for measurement of inflammatory factors, oxidative stress and other markers.
Stool collection:
We collect stool samples from patients with bronchiectasis.Fresh stools were processed in the laboratory within 30 min after collection and stored at -80°C until analysis.
Peripheral blood collection:
We collect peripheral blood samples from patients with bronchiectasis to detect inflammatory mediators and so on.
Study design
- Observational model
- Case-control
- Time perspective
- Prospective
- Number of arms
- 4
| Arm | Type | Receives |
|---|---|---|
| Pseudomonas aeruginosa colonization group | – | Diagnostic Test: Pseudomonas aeruginosa colonization infectionColonization of Pseudomonas aeruginosa in the airways of patients with bronchiectasis |
| Non-Pseudomonas aeruginosa colonization group | – | Diagnostic Test: Pseudomonas aeruginosa colonization infectionNo colonization of Pseudomonas aeruginosa in the airways of patients with bronchiectasis |
| Before treatment with macrolides | – | Drug: MacrolidesBefore treatment with macrolides in patients with bronchiectasis |
| After treatment with macrolides | – | Drug: MacrolidesAfter 6 months of treatment with macrolides for patients with bronchiectasis |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- All patients with bronchiectasis was recruited from Wuhan Union Hospital.
Key inclusion criteria (4 listed)
- 18 years or older
- Bronchiectasis confirmed by high-resolution computed tomographic scan(HRCT)
- Chronic expectoration with ability to provide a sputum sample at the study visit
- Provision of written informed consent
Key exclusion criteria (2 listed)
- Traction bronchiectasis
- Lack of important clinical information
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Pseudomonas aeruginosa colonization infectionWith or without airway Pseudomonas aeruginosa colonization infection | Diagnostic test | Non-Pseudomonas aeruginosa colonization group, Pseudomonas aeruginosa colonization group |
| MacrolidesBefore or after 6 months of treatment with macrolides for patients with bronchiectasis | Drug | After treatment with macrolides, Before treatment with macrolides |
Primary outcome
Acute exacerbations and mortality
Time frame: February 10, 2026
The number of acute exacerbations and outcome (death or survival) of patients with bronchiectasis after one year.
3 secondary outcomes
Lung function
Time frame: February 10, 2026
Symptoms assessment
Time frame: February 10, 2026
Stool and sputum microtioba
Time frame: February 10, 2026
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 5 Jan 2026.
- Background: PubMed 29371383De Soyza A, Aksamit T, Bandel TJ, Criollo M, Elborn JS, Operschall E, Polverino E, Roth K, Winthrop KL, Wilson R. RESPIRE 1: a phase III placebo-controlled randomised trial of ciprofloxacin dry powder for inhalation in non-cystic fibrosis bronchiectasis. Eur Respir J. 2018 Jan 25;51(1):1702052. doi: 10.1183/13993003.02052-2017. Print 2018 Jan.
- Background: PubMed 29371384Aksamit T, De Soyza A, Bandel TJ, Criollo M, Elborn JS, Operschall E, Polverino E, Roth K, Winthrop KL, Wilson R. RESPIRE 2: a phase III placebo-controlled randomised trial of ciprofloxacin dry powder for inhalation in non-cystic fibrosis bronchiectasis. Eur Respir J. 2018 Jan 25;51(1):1702053. doi: 10.1183/13993003.02053-2017. Print 2018 Jan.
- Background: PubMed 29386336Araujo D, Shteinberg M, Aliberti S, Goeminne PC, Hill AT, Fardon TC, Obradovic D, Stone G, Trautmann M, Davis A, Dimakou K, Polverino E, De Soyza A, McDonnell MJ, Chalmers JD. The independent contribution of Pseudomonas aeruginosa infection to long-term clinical outcomes in bronchiectasis. Eur Respir J. 2018 Jan 31;51(2):1701953. doi: 10.1183/13993003.01953-2017. Print 2018 Feb.
- Background: PubMed 29540404Wang H, Ji XB, Mao B, Li CW, Lu HW, Xu JF. Pseudomonas aeruginosa isolation in patients with non-cystic fibrosis bronchiectasis: a retrospective study. BMJ Open. 2018 Mar 14;8(3):e014613. doi: 10.1136/bmjopen-2016-014613.
- Background: PubMed 31005356Martinez-Garcia MA, Olveira C, Maiz L, Giron RM feminine, Prados C, de la Rosa D, Blanco M, Agusti A. Bronchiectasis: A Complex, Heterogeneous Disease. Arch Bronconeumol (Engl Ed). 2019 Aug;55(8):427-433. doi: 10.1016/j.arbres.2019.02.024. Epub 2019 Apr 18. English, Spanish.
- Background: PubMed 31364220O'Neill K, Einarsson GG, Rowan S, McIlreavey L, Lee AJ, Lawson J, Lynch T, Horsley A, Bradley JM, Elborn JS, Tunney MM. Composition of airway bacterial community correlates with chest HRCT in adults with bronchiectasis. Respirology. 2020 Jan;25(1):64-70. doi: 10.1111/resp.13653. Epub 2019 Jul 30.
- Background: PubMed 31046405Vermeersch K, Gabrovska M, Aumann J, Demedts IK, Corhay JL, Marchand E, Slabbynck H, Haenebalcke C, Haerens M, Hanon S, Jordens P, Peche R, Fremault A, Lauwerier T, Delporte A, Vandenberk B, Willems R, Everaerts S, Belmans A, Bogaerts K, Verleden GM, Troosters T, Ninane V, Brusselle GG, Janssens W. Azithromycin during Acute Chronic Obstructive Pulmonary Disease Exacerbations Requiring Hospitalization (BACE). A Multicenter, Randomized, Double-Blind, Placebo-controlled Trial. Am J Respir Crit Care Med. 2019 Oct 1;200(7):857-868. doi: 10.1164/rccm.201901-0094OC.
- Background: PubMed 23532242Serisier DJ, Martin ML, McGuckin MA, Lourie R, Chen AC, Brain B, Biga S, Schlebusch S, Dash P, Bowler SD. Effect of long-term, low-dose erythromycin on pulmonary exacerbations among patients with non-cystic fibrosis bronchiectasis: the BLESS randomized controlled trial. JAMA. 2013 Mar 27;309(12):1260-7. doi: 10.1001/jama.2013.2290.
- Background: PubMed 31027086Wang D, Fu W, Dai J. Meta-analysis of macrolide maintenance therapy for prevention of disease exacerbations in patients with noncystic fibrosis bronchiectasis. Medicine (Baltimore). 2019 Apr;98(17):e15285. doi: 10.1097/MD.0000000000015285.
- Background: PubMed 22288725Hodge S, Reynolds PN. Low-dose azithromycin improves phagocytosis of bacteria by both alveolar and monocyte-derived macrophages in chronic obstructive pulmonary disease subjects. Respirology. 2012 Jul;17(5):802-7. doi: 10.1111/j.1440-1843.2012.02135.x.
- Background: PubMed 22901887Wong C, Jayaram L, Karalus N, Eaton T, Tong C, Hockey H, Milne D, Fergusson W, Tuffery C, Sexton P, Storey L, Ashton T. Azithromycin for prevention of exacerbations in non-cystic fibrosis bronchiectasis (EMBRACE): a randomised, double-blind, placebo-controlled trial. Lancet. 2012 Aug 18;380(9842):660-7. doi: 10.1016/S0140-6736(12)60953-2.
- Background: PubMed 30687502Hill AT, Sullivan AL, Chalmers JD, De Soyza A, Elborn JS, Floto RA, Grillo L, Gruffydd-Jones K, Harvey A, Haworth CS, Hiscocks E, Hurst JR, Johnson C, Kelleher WP, Bedi P, Payne K, Saleh H, Screaton NJ, Smith M, Tunney M, Whitters D, Wilson R, Loebinger MR. British Thoracic Society guideline for bronchiectasis in adults. BMJ Open Respir Res. 2018 Dec 28;5(1):e000348. doi: 10.1136/bmjresp-2018-000348. eCollection 2018.
- Individual participant dataSharing planned: Undecided
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Bronchiectasis
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
Xiaorong Wang principal investigator
Union Hospital, Tongji Medical College, Huazhong University of Science and Technology
3 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Bronchiectasis, run by Union Hospital, Tongji Medical College, Huazhong University of Science and Technology at 3 sites in China.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 4 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: looking for participants now, as of the sponsor's last update on 5 Jan 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 3 sites in China. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Xiaorong Wang (18627195231 ext. +86, rong-100@163.com), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Acute exacerbations and mortality (time frame: February 10, 2026). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT05731427, which also lists 13 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 5 Jan 2026.