Bronchiectasis AdultPhase 4ERASENCT06093191
Tobramycin Inhalation Solution for Pseudomonas Aeruginosa Eradication in Bronchiectasis
A Phase 4 study testing Tobramycin Inhalant Product, Ciprofloxacin 750 MG and Natural saline inhalation in people with Bronchiectasis Adult and Pseudomonas Aeruginosa Infection, run by Jin-Fu Xu at 60 sites in China.
Trial summary
People with bronchiectasis are prone to Pseudomonas aeruginosa (PA) infections, which can become chronic and lead to increased death rates and disease severity. Studies from cystic fibrosis suggest that eradication therapy aimed at PA can successfully transition patients to a culture-negative status, providing… Read more about this study
- Who is it for?
- Ages 18 to 80 years
- Conditions the study is for
- Bronchiectasis Adult, Pseudomonas Aeruginosa Infection
- What is being tested?
- Tobramycin Inhalant Product, Ciprofloxacin 750 MG and Natural saline inhalation
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 371 participants
- Where
- 60 sitesChina
- Study dates
- 18 Oct 2023to 15 Nov 2025
- Phase
- Phase 4
- Are there results?
- None posted in the registry
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 to 80 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Male or female, aged 18 years and 80 years at screening
- Signed and dated written informed consent prior to admission to the study in accordance with local legislation.
- Clinical history consistent with bronchiectasis (cough, chronic sputum production and/or recurrent respiratory infections) and investigator-confirmed diagnosis of bronchiectasis by high-resolution CT (HRCT) scan
- Positive sputum culture for PA during screening, and meeting one of the following three conditions:
- ① No prior isolation of PA from respiratory secretions (a positive sputum culture from the study hospital within 1 month before screening was accepted, provided that no antibiotics were used for ≥14 days before the culture);
- ② First isolated PA within 12 months prior to screening, but did not undergo eradication therapy (continuous oral/intravenous/inhaled antibiotic treatment ≥1 month, excluding macrolides);
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- ③ Previously isolated PA, but respiratory secretions were negative for PA at least twice (separated by an interval of ≥3 months) for 24 months or more prior to screening (Requirement: respiratory secretion isolation results obtained while not using antibiotics for 14 days or more);
- During the screening period, patients must remain clinically stable (no significant changes in daytime and nighttime respiratory symptoms and no upper respiratory tract infection or bronchiectasis exacerbations for 4 weeks)
- During the screening period, P. aeruginosa is not resistant to Tobramycin and Ciprofloxacin based on the drug sensitivity test of sputum culture in vitro
- Patient can tolerate nebulized inhalation therapy
Who cannot join
- Patients who are allergic to or cannot tolerate the investigational drugs (Tobramycin, Ciprofloxacin)
- Comorbid uncontrolled asthma (defined as ≥1 acute exacerbation within 1 week prior to screening); confirmed bronchiectasis due to cystic fibrosis; Allergic Bronchopulmonary Aspergillosis (ABPA); active pulmonary tuberculosis; or nontuberculous mycobacterial infection requiring standard anti-nontuberculous treatment;
- Participants with unstable cardiovascular and cerebrovascular diseases, defined as those who have experienced clinically worsening symptoms (such as unstable angina, rapid atrial fibrillation, cerebral hemorrhage, acute cerebral infarction, etc.) or have been hospitalized due to these diseases within 90 days prior to the screening
- Participants with progressive or uncontrolled systemic diseases, such as those affecting the urinary, hematological, digestive, endocrine, respiratory, circulatory, nervous, or mental systems, are not suitable for this clinical trial. This is particularly the case if these conditions are evaluated by the researcher as being unstable or potentially escalating into severe conditions during the trial.
- AST and/or ALT >2 ULN and/or Total Bilirubin (TBIL) at screening period
- Serum creatinine >ULN at screening period
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- Participants with a history of hearing loss or those who are determined by the researcher to have clinically significant chronic tinnitus
- Participants with a history of prolonged QT intervals or those whose electrocardiograms show prolonged QT intervals during the screening period
- Participants who have used drugs that are prohibited according to the plan during the screening period.
- Women who are pregnant or lactating, or women of childbearing potential preparing for pregnancy
- Patients with FEV1% of predicted value<30%
- Participants who have participated in other clinical trials (defined as those where medication has been administered) within the 4 weeks prior to the screening
- Participants who have experienced moderate or severe hemoptysis (defined as expectorating 100-500ml of blood in 24 hours for moderate hemoptysis; and expectorating more than 500ml in 24 hours, or a single instance of expectorating more than 100ml of blood for severe hemoptysis) due to bronchiectasis within the past 6 months.
- Participants who are deemed unsuitable for inclusion in the study due to other reasons, as determined by the researcher.
Trial locations and contacts
60 sites in 1 country.
60 sites in 1 country
China60 sites
The First People's Hospital of Anning Affiliated to Kunming University of Science and Technology
Anning, Yunnan
Beijing Chao-Yang Hospital, Capital Medical University
Beijing, Beijing Municipality
Peking Union Medical College Hospital
Beijing, Beijing Municipality
The First Hospital of Jilin University
Changchun, Jilin
The Second Xiangya Hospital of Central South University
Changsha, Hunan
Xiangya Hospital, Central South University
Changsha, Hunan
West China Hospital, Sichuan University
Chengdu, Sichuan
The Second Affiliated Hospital of Chongqing Medical University
Chongqing, Chongqing Municipality
The Third Affiliated Hospital of Chongqing Medical University
Chongqing, Chongqing Municipality
The Second Affiliated Hospital of Dalian Medical University
Dalian, Liaoning
Fujian Provincial Hospital
Fuzhou, Fujian
The First Affiliated Hospital of Guangzhou Medical University
Guangzhou, Guangdong
The First Affiliated Hospital of Guangzhou University of Chinese Medicine
Guangzhou, Guangdong
Guizhou Provincial People's Hospital
Guiyang, Guizhou
Hainan Provincial People's Hospital
Haikou, Hainan, 570311
The Affiliated Hospital of Hangzhou Normal University
Hangzhou, Zhejiang
The Second Affiliated Hospital of Zhejiang University School of Medicine
Hangzhou, Zhejiang
Anhui Chest Hospital
Hefei, Anhui
The First Affiliated Hospital of Anhui Medical University
Hefei, Anhui
Huzhou Central Hospital Affiliated to Zhejiang University School of Medicine
Huzhou, Zhejiang
Affiliated Hospital of Jiaxing University
Jiaxing, Zhejiang
The Second Affiliated Hospital of Jiaxing University
Jiaxing
The First Affiliated Hospital of Shandong First Medical University
Jinan, Shandong
Qilu Hospital, Shandong University
Jinan, Shangdong
The First Affiliated Hospital of Kunming Medical University
Kunming, Yunnan, 650032
The First Affiliated Hospital of Nanchang University
Nanchang, Jiangxi
The Second Affiliated Hospital of Nanjing Medical University
Nanjing, Jiangsu
The First Affiliated Hospital of Guangxi Medical University
Nanning, Guangxi
Affiliated Hospital of Nantong University
Nantong, Jiangsu
The Sixth People's Hospital of Nantong
Nantong, Jiangsu
Medical Service Community of People's Hospital of Fenghua
Ningbo, Zhejiang
Ningbo Medical Center Lihuili Hospital
Ningbo, Zhejiang
The First Affiliated Hospital of Ningbo University
Ningbo, Zhejiang
Tsingtao Municipal Hospital, Qingdao Hospital of University Health And Rehabilitation Sciences
Qingdao, Shandong
Ruijin Hospital, Shanghai Jiaotong University
Shanghai, Shanghai Municipality, 200025
Tongji Hospital, School of Medicine, Tongji University; Shanghai Pulmonary Hospital, School of Medicine, Tongji University; Huadong Hospital, School of Medicine, Fudan University
Shanghai, Shanghai Municipality, 200065; 200433; 200040
Shanghai Fifth People's Hospital, Fudan University
Shanghai, Shanghai Municipality, 200245
Baoshan Hospital, Shanghai University of Traditional Chinese Medicine
Shanghai, Shanghai Municipality
Putuo People's Hospital, School of Medicine, Tongji University
Shanghai, Shanghai Municipality
Shanghai General Hospital, Shanghai Jiaotong University
Shanghai, Shanghai Municipality
Songjiang Hospital, Shanghai Jiao Tong University
Shanghai, Shanghai Municipality
The Eighth People's Hospital of Shanghai
Shanghai, Shanghai Municipality
Yangpu Hospital, Tongji University
Shanghai, Shanghai Municipality
Zhongshan Hospital, Fudan University
Shanghai, Shanghai Municipality
Shanghai Sixth People's Hospital, Shanghai Jiao Tong University
Shanghai
The Shangrao People's Hospital
Shangrao, Jiangxi
Shengjing Hospital of China Medical University
Shenyang, Liaoning
The First Hospital of China Medical University
Shenyang, Liaoning
Shenzhen Institute of Respiratory Diseases
Shenzhen, Guangdong
The Eighth Affiliated Hospital of Sun Yat-Sen University
Shenzhen, Guangdong
Suzhou Hospital, Affiliated Hospital of Medical School, Nanjing University
Suzhou, Jiangsu
The First Affiliated Hospital of Soochow University
Suzhou, Jiangsu
Shanxi Bethune Hospital
Taiyuan, Shanxi, 030032
The First Affliated Hospital of Wenzhou Medical University
Wenzhou, Zhejiang
Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology
Wuhan, Hubei
Union Hospital, Tongji Medical College, Huazhong University of Science and Technology
Wuhan, Hubei
Northern Jiangsu People's Hospital
Yangzhou, Jiangsu
Affiliated Hospital of Guangdong Medical University
Zhanjiang, Guangdong
Henan Provincial People's Hospital
Zhengzhou, Henan
Zhengzhou People's Hospital
Zhengzhou, Henan
About this study
Official title: Efficacy and Safety of tobRamycin Inhalation Solution for Pseudomonas AeruginoSa Eradication in Bronchiectasis (ERASE): a Multi-center, 2×2 Factorial Randomized, Double-blind, Placebo-controlled Trial
People with bronchiectasis are prone to Pseudomonas aeruginosa (PA) infections, which can become chronic and lead to increased death rates and disease severity. Studies from cystic fibrosis suggest that eradication therapy aimed at PA can successfully transition patients to a culture-negative status, providing long-term benefits. Current guidelines for managing bronchiectasis in adults recommend eradicating PA when it is first or newly isolated; however, there is a lack of randomized controlled trials supporting such recommendations. The researchers hypothesize that both oral ciprofloxacin combined with tobramycin inhalation solution and tobramycin inhalation solution alone are superior to no eradication (inhaled saline) in terms of the eradication rate of PA (with eradication defined as negative sputum culture results on two consecutive occasions separated by an interval of 12 weeks or more after the first drug administration).
Read the detailed description
The presence of Pseudomonas aeruginosa (PA) in bronchiectasis patients is associated with a greater impairment in lung function, increased systemic and airway inflammation, more frequent exacerbations, decreased quality of life, a higher risk of hospitalization, and increased mortality. Current guidelines recommend eradicating PA when it is first isolated, but there is limited randomized controlled trial evidence to support this.
In cystic fibrosis, early infection with PA is clearly linked to worse outcomes, and eradication is associated with clinical benefits, including improved lung function and reduced hospitalization. Small sample observational studies have shown that eradication therapy following initial PA isolation is efficient, with eradication rates of 40%-57% in bronchiectasis. Therefore, a randomized control trial of PA eradication therapy is needed to determine the microbiological and clinical outcomes of this therapy.
There is also uncertainty about whether inhaled antibiotics alone are sufficient to eradicate PA in non-cystic fibrosis bronchiectasis, given the less severe nature of the disease compared to cystic fibrosis. It's unclear whether adding another antibiotic, such as oral ciprofloxacin in this study, to inhaled antibiotics at the initial stage is necessary as an enhanced treatment for eradicating PA in bronchiectasis.
To address these knowledge gaps, a multicenter, 2×2 factorial randomized, double-blind, placebo-controlled, parallel-group study is designed in bronchiectasis patients with newly or firstly isolated PA. This study aims to investigate the efficacy and safety of tobramycin inhalation solution alone or in combination with oral ciprofloxacin in eradicating PA in bronchiectasis.
Patients will be randomly assigned to one of four groups:
- Placebo group: participants will receive inhaled saline twice daily for 12 weeks and an oral ciprofloxacin placebo twice daily for 2 weeks.
- Oral ciprofloxacin alone group: participants will receive 750mg of oral ciprofloxacin twice daily for 2 weeks and inhaled saline twice daily for 12 weeks.
- Tobramycin inhalation solution alone group: participants will receive 300mg of inhaled tobramycin twice daily for 12 weeks and an oral ciprofloxacin placebo twice daily for 2 weeks.
- Combination group: participants will receive 300mg of inhaled tobramycin solution twice daily for 12 weeks and 750mg of oral ciprofloxacin twice daily for 2 weeks.
This study will provide valuable insights into the most effective treatment strategy for eradicating PA in bronchiectasis patients.
- Being tested
- Tobramycin Inhalant Product, Ciprofloxacin 750 MG, Oral ciprofloxacin placebo, Natural saline inhalation
- Keywords
- bronchiectasis,, Pseudomonas Aeruginosa, eradication, inhaled antibiotics, randomized controlled trial
- Medical subject headings
- Pseudomonas Infections, Bronchiectasis
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Tobramycin Inhalant ProductDrug
Also called Inhaled antibiotics
Tobramycin will be nebulized (300mg twice daily) with an ultrasonic nebulizer. A total of 12 weeks therapy will be scheduled.
Ciprofloxacin 750 MGDrug
Also called Oral antibiotics
Oral ciprofloxacin 750mg twice daily will be prescribed for 2 weeks.
Oral ciprofloxacin placeboDrug
Also called Oral antibiotics
Oral ciprofloxacin placebo twice daily will be prescribed for 2 weeks.
Natural saline inhalationDrug
Also called Inhaled saline
Natural saline will be nebulized (5ml twice daily) with an ultrasonic nebulizer. A total of 12 weeks therapy will be scheduled.
| Study group | Role | What they receive |
|---|---|---|
| Combination group | Active comparator | Participants will receive inhaled 300mg of tobramycin solution twice daily for 12 weeks and oral 750mg of ciprofloxacin twice daily for 2 weeks Receives: Drug: Tobramycin Inhalant Product; Drug: Ciprofloxacin 750 MG |
| Tobramycin inhalation solution alone group | Active comparator | Participants will receive inhaled 300mg of tobramycin twice daily for 12 weeks and oral ciprofloxacin placebo twice daily for 2 weeks Receives: Drug: Tobramycin Inhalant Product; Drug: Oral ciprofloxacin placebo |
| Oral ciprofloxacin alone group | Active comparator | Participants will receive oral 750mg of ciprofloxacin twice daily for 2 weeks and inhaled saline twice daily for 12 weeks Receives: Drug: Ciprofloxacin 750 MG; Drug: Natural saline inhalation |
| Placebo group | Placebo comparator | Participants will receive inhaled saline twice daily for 12 weeks and oral ciprofloxacin placebo twice daily for 2 weeks Receives: Drug: Oral ciprofloxacin placebo; Drug: Natural saline inhalation |
What is being measured
The primary outcome is the main question the study is designed to answer.
The proportion of subjects with sustained negative sputum cultures for Pseudomonas aeruginosa (defined as negative sputum culture results on two consecutive occasions separated by an interval of 12 weeks or more) after first drug administration.
The proportion of subjects with sustained negative sputum cultures for Pseudomonas aeruginosa after first drug administration. This is defined as negative sputum culture results on two consecutive occasions separated by an interval of 12 weeks or more.
Measured: 36 weeks
Secondary outcomes (20)
Proportion of patients with a negative Pseudomonas aeruginosa sputum culture at 12 weeks after the first drug administration.
Proportion of patients with a negative Pseudomonas aeruginosa sputum culture at 12 weeks after the first drug administration.
Measured: 12 weeks
Proportion of patients with a negative Pseudomonas aeruginosa sputum culture at 24 weeks after the first drug administration.
Proportion of patients with a negative Pseudomonas aeruginosa sputum culture at 24 weeks after the first drug administration.
Measured: 24 weeks
Proportion of patients with a negative Pseudomonas aeruginosa sputum culture at 36 weeks after the first drug administration.
Proportion of patients with a negative Pseudomonas aeruginosa sputum culture at 36 weeks after the first drug administration.
Measured: 36 weeks
Time to first pulmonary exacerbation of bronchiectasis after the first drug administration.
Time to first pulmonary exacerbation of bronchiectasis after the first drug administration.
Measured: 36 weeks
Frequency of pulmonary exacerbations of bronchiectasis after the first drug administration.
Frequency of pulmonary exacerbations of bronchiectasis after the first drug administration.
Measured: 12 weeks
Frequency of pulmonary exacerbations of bronchiectasis after the first drug administration.
Frequency of pulmonary exacerbations of bronchiectasis after the first drug administration.
Measured: 36 weeks
Time to reoccurrence of Pseudomonas aeruginosa infection since randomization.
Time to reoccurrence of Pseudomonas aeruginosa infection since randomization.
Measured: 36 weeks
Absolute change from baseline in 1 second [FEV1] at 12, 24, and 36 weeks.
Absolute change from baseline in 1 second [FEV1] at 12, 24, and 36 weeks.
Measured: Assessed at 12 weeks, 24 weeks and 36 weeks after the first drug administration.
Absolute change from baseline in forced vital capacity [FVC] at 12, 24, and 36 weeks
Absolute change from baseline in forced vital capacity [FVC] at 12, 24, and 36 weeks
Measured: Assessed at 12 weeks, 24 weeks and 36 weeks after the first drug administration.
Absolute change from baseline in forced expiratory flow between 25 and 75% of forced vital capacity [FEF25%-75%] at 12, 24, and 36 weeks.
Absolute change from baseline in forced expiratory flow between 25 and 75% of forced vital capacity [FEF25%-75%] at 12, 24, and 36 weeks.
Measured: Assessed at 12 weeks, 24 weeks and 36 weeks after the first drug administration.
Proportion of hospitalisations due to bronchiectasis after the first drug administration.
Proportion of hospitalisations due to bronchiectasis after the first drug administration.
Measured: 24 weeks
Proportion of hospitalisations due to bronchiectasis after the first drug administration.
Proportion of hospitalisations due to bronchiectasis after the first drug administration.
Measured: 36 weeks
Absolute change from baseline in health-related quality of life, as measured by the Quality-of-Life Bronchiectasis Respiratory Symptom Scale (QOL-B-RSS) score at 12, 24, and 36 weeks.
The Quality-of-Life-Bronchiectasis (QoL-B) questionnaire is a disease-specific survey designed for patients with bronchiectasis. The Respiratory Symptoms scale is a component of the QoL-B questionnaire, with a scale range from 0 to 100. Higher scores on this scale signify a better health status.
Measured: Assessed at 12 weeks, 24 weeks and 36 weeks after the first drug administration.
Absolute change from baseline in health-related quality of life, as measured by the St George's Respiratory Questionnaire (SGRQ) score at 12, 24, and 36 weeks.
St.George Respiratory Questionnaire (SGRQ): a validated questionnaire for use in bronchiectasis population. This questionnaire is structured into 3 main components: symptoms, activity and impacts.
Scale range is 0-100, where lower scores correspond to the better health status.
Each questionnaire response has a unique empirically derived "weight".
Each component of the questionnaire is scored separately in three steps:
- The weights for all items with a positive responses are summed. ii. The weights for missed items are deducted from the maximum possible weight for each component. The weights for all missed items are deducted from the maximum possible weight for the Total score. iii. The score is calculated by dividing the summed weights by the adjusted maximum possible weight for that component and expressing the result as a percentage The Total score is calculated in similar way.
Measured: Assessed at 12 weeks, 24 weeks and 36 weeks after the first drug administration.
Absolute change from baseline in health-related quality of life, as measured by the EuroQol Five Dimensions Questionnaire (EQ-5D-5L) score at 12, 24, and 36 weeks.
The Euroqual-5 Dimensions questionnaire (EQ-5D) consists of two parts: health state description and evaluation. In the description part, health status is measured across five dimensions (5D): mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. Respondents rate their severity level for each dimension using a five-level (EQ-5D-5L) scale.
In the evaluation part, respondents assess their overall health status using the visual analogue scale (EQ-VAS), which ranges from 0 to 100, with higher scores indicating a better health status.
Health states defined by the EQ-5D-5L descriptive system are converted into index values. This facilitates the calculation of Quality-Adjusted Life Years (QALYs), which are used to inform economic evaluations of healthcare interventions, according to guidelines found at https://euroqol.org.
Measured: Assessed at 12 weeks, 24 weeks and 36 weeks after the first drug administration.
Number of hospitalisations per person.
Number of hospitalisations per person.
Measured: 36 weeks.
Cost per hospitalisation per person.
Cost per hospitalisation per person.
Measured: 36 weeks
Isolation rate of other pathogenic microorganisms at 12 weeks, 24 weeks, and 36 weeks.
The number of participants who yielded at least one positive culture for other pathogenic microorganisms was calculated.
Measured: Assessed at 12 weeks, 24 weeks and 36 weeks after the first drug administration.
Proportion of subjects developing resistance to tobramycin or ciprofloxacin after enrolment.
Sputum cultures were performed at intervals of baseline, 2 weeks, 8 weeks, 12 weeks, 24 weeks, and 36 weeks. Drug sensitivity testing was conducted to assess the resistance of the current Pseudomonas aeruginosa sample to antibiotics such as ciprofloxacin and tobramycin. The number of participants who showed growth of Pseudomonas aeruginosa resistant to ciprofloxacin and/or tobramycin was calculated.
Measured: 36 weeks
Incidence of adverse events and serious adverse events.
Assessed by the investigator via patient interview, spontaneous reporting, and clinical evaluation.
Measured: 36 weeks
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted23 Oct 2023
- Study start18 Oct 2023
- Primary completion28 Oct 2025
- Study completion15 Nov 2025
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (8)Papers the sponsor has linked to this study.
- Other trials for Bronchiectasis AdultStudies of the same condition, open and under way.
- 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
- Interventional
- Phase
- Phase 4
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Model description
- Patients will be randomized into one of the four groups. No cross-over of the study group will be made
- Masking
- Quadruple blind
- Who is masked
- Participant, Care provider, Investigator, Outcomes assessor
- Enrolment
- 371 participants (actual)
Sponsor and investigators
- Lead sponsor
- Jin-Fu Xu
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor-investigator, Jin-Fu Xu, Shanghai Tongji Hospital, Tongji University School of Medicine
- Investigators
- Jin-Fu Xu, MD, PhD, Principal investigator, Tongji Hospital, School of Medicine, Tongji University; Shanghai Pulmonary Hospital, School of Medicine, Tongji University; Huadong Hospital, School of Medicine, Fudan University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06093191
- Sponsor's protocol ID
- 20230329
- Acronym
- ERASE
- Status last verified
- Apr 2026
- First submitted
- 10 Oct 2023
- Last updated
- 17 Apr 2026
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Polverino 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 28889110Hill AT, Sullivan AL, Chalmers JD, De Soyza A, Elborn SJ, Floto AR, Grillo L, Gruffydd-Jones K, Harvey A, Haworth CS, Hiscocks E, Hurst JR, Johnson C, Kelleher PW, 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. Thorax. 2019 Jan;74(Suppl 1):1-69. doi: 10.1136/thoraxjnl-2018-212463. No abstract available.
PubMed 30545985Aliberti S, Masefield S, Polverino E, De Soyza A, Loebinger MR, Menendez R, Ringshausen FC, Vendrell M, Powell P, Chalmers JD; EMBARC Study Group. Research priorities in bronchiectasis: a consensus statement from the EMBARC Clinical Research Collaboration. Eur Respir J. 2016 Sep;48(3):632-47. doi: 10.1183/13993003.01888-2015. Epub 2016 Jun 10.
PubMed 27288031White L, Mirrani G, Grover M, Rollason J, Malin A, Suntharalingam J. Outcomes of Pseudomonas eradication therapy in patients with non-cystic fibrosis bronchiectasis. Respir Med. 2012 Mar;106(3):356-60. doi: 10.1016/j.rmed.2011.11.018. Epub 2011 Dec 26.
PubMed 22204744Vallieres E, Tumelty K, Tunney MM, Hannah R, Hewitt O, Elborn JS, Downey DG. Efficacy of Pseudomonas aeruginosa eradication regimens in bronchiectasis. Eur Respir J. 2017 Apr 12;49(4):1600851. doi: 10.1183/13993003.00851-2016. Print 2017 Apr. No abstract available.
PubMed 28404646Blanco-Aparicio M, Saleta Canosa JL, Valino Lopez P, Martin Egana MT, Vidal Garcia I, Montero Martinez C. Eradication of Pseudomonas aeruginosa with inhaled colistin in adults with non-cystic fibrosis bronchiectasis. Chron Respir Dis. 2019 Jan-Dec;16:1479973119872513. doi: 10.1177/1479973119872513.
PubMed 31480862Orriols R, Hernando R, Ferrer A, Terradas S, Montoro B. Eradication Therapy against Pseudomonas aeruginosa in Non-Cystic Fibrosis Bronchiectasis. Respiration. 2015;90(4):299-305. doi: 10.1159/000438490. Epub 2015 Sep 5.
PubMed 26340658Pieters A, Bakker M, Hoek RAS, Altenburg J, van Westreenen M, Aerts JGJV, van der Eerden MM. The clinical impact of Pseudomonas aeruginosa eradication in bronchiectasis in a Dutch referral centre. Eur Respir J. 2019 Apr 11;53(4):1802081. doi: 10.1183/13993003.02081-2018. Print 2019 Apr. No abstract available.
PubMed 30635292
Study at a glance
From the registry record, last updated by the sponsor on 17 Apr 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Efficacy and Safety of tobRamycin Inhalation Solution for Pseudomonas AeruginoSa Eradication in Bronchiectasis (ERASE): a Multi-center, 2×2 Factorial Randomized, Double-blind, Placebo-controlled Trial
- ClinicalTrials.gov ID
- NCT06093191
- Acronym / sponsor ID
- ERASE / 20230329
- Keywords
- bronchiectasis,, Pseudomonas Aeruginosa, eradication, inhaled antibiotics, randomized controlled trial
- Phase
- Phase 4
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 371 participants (actual)
- Lead sponsor
- Jin-Fu XuUniversity, hospital or other
- Study start
- 18 Oct 2023 (actual)
- Primary completion
- 28 Oct 2025 (actual)
- Study completion
- 15 Nov 2025 (actual)
- First posted
- 23 Oct 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.
People with bronchiectasis are prone to Pseudomonas aeruginosa (PA) infections, which can become chronic and lead to increased death rates and disease severity. Studies from cystic fibrosis suggest that eradication therapy aimed at PA can successfully transition patients to a culture-negative status, providing long-term benefits. Current guidelines for managing bronchiectasis in adults recommend eradicating PA when it is first or newly isolated; however, there is a lack of randomized controlled trials supporting such recommendations. The researchers hypothesize that both oral ciprofloxacin combined with tobramycin inhalation solution and tobramycin inhalation solution alone are superior to no eradication (inhaled saline) in terms of the eradication rate of PA (with eradication defined as negative sputum culture results on two consecutive occasions separated by an interval of 12 weeks or more after the first drug administration).
Detailed description
The presence of Pseudomonas aeruginosa (PA) in bronchiectasis patients is associated with a greater impairment in lung function, increased systemic and airway inflammation, more frequent exacerbations, decreased quality of life, a higher risk of hospitalization, and increased mortality. Current guidelines recommend eradicating PA when it is first isolated, but there is limited randomized controlled trial evidence to support this.
In cystic fibrosis, early infection with PA is clearly linked to worse outcomes, and eradication is associated with clinical benefits, including improved lung function and reduced hospitalization. Small sample observational studies have shown that eradication therapy following initial PA isolation is efficient, with eradication rates of 40%-57% in bronchiectasis. Therefore, a randomized control trial of PA eradication therapy is needed to determine the microbiological and clinical outcomes of this therapy.
There is also uncertainty about whether inhaled antibiotics alone are sufficient to eradicate PA in non-cystic fibrosis bronchiectasis, given the less severe nature of the disease compared to cystic fibrosis. It's unclear whether adding another antibiotic, such as oral ciprofloxacin in this study, to inhaled antibiotics at the initial stage is necessary as an enhanced treatment for eradicating PA in bronchiectasis.
To address these knowledge gaps, a multicenter, 2×2 factorial randomized, double-blind, placebo-controlled, parallel-group study is designed in bronchiectasis patients with newly or firstly isolated PA. This study aims to investigate the efficacy and safety of tobramycin inhalation solution alone or in combination with oral ciprofloxacin in eradicating PA in bronchiectasis.
Patients will be randomly assigned to one of four groups:
- Placebo group: participants will receive inhaled saline twice daily for 12 weeks and an oral ciprofloxacin placebo twice daily for 2 weeks.
- Oral ciprofloxacin alone group: participants will receive 750mg of oral ciprofloxacin twice daily for 2 weeks and inhaled saline twice daily for 12 weeks.
- Tobramycin inhalation solution alone group: participants will receive 300mg of inhaled tobramycin twice daily for 12 weeks and an oral ciprofloxacin placebo twice daily for 2 weeks.
- Combination group: participants will receive 300mg of inhaled tobramycin solution twice daily for 12 weeks and 750mg of oral ciprofloxacin twice daily for 2 weeks.
This study will provide valuable insights into the most effective treatment strategy for eradicating PA in bronchiectasis patients.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind (participant, care provider, investigator, outcomes assessor)
- Number of arms
- 4
- Model description
- Patients will be randomized into one of the four groups. No cross-over of the study group will be made
| Arm | Type | Receives |
|---|---|---|
| Combination group | Active comparator | Drug: Tobramycin Inhalant Product, Drug: Ciprofloxacin 750 MGParticipants will receive inhaled 300mg of tobramycin solution twice daily for 12 weeks and oral 750mg of ciprofloxacin twice daily for 2 weeks |
| Tobramycin inhalation solution alone group | Active comparator | Drug: Tobramycin Inhalant Product, Drug: Oral ciprofloxacin placeboParticipants will receive inhaled 300mg of tobramycin twice daily for 12 weeks and oral ciprofloxacin placebo twice daily for 2 weeks |
| Oral ciprofloxacin alone group | Active comparator | Drug: Ciprofloxacin 750 MG, Drug: Natural saline inhalationParticipants will receive oral 750mg of ciprofloxacin twice daily for 2 weeks and inhaled saline twice daily for 12 weeks |
| Placebo group | Placebo comparator | Drug: Oral ciprofloxacin placebo, Drug: Natural saline inhalationParticipants will receive inhaled saline twice daily for 12 weeks and oral ciprofloxacin placebo twice daily for 2 weeks |
Who may qualify
- Ages
- 18 to 80 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (10 listed)
- Male or female, aged 18 years and 80 years at screening
- Signed and dated written informed consent prior to admission to the study in accordance with local legislation.
- Clinical history consistent with bronchiectasis (cough, chronic sputum production and/or recurrent respiratory infections) and investigator-confirmed diagnosis of bronchiectasis by high-resolution CT (HRCT) scan
- Positive sputum culture for PA during screening, and meeting one of the following three conditions:
- ① No prior isolation of PA from respiratory secretions (a positive sputum culture from the study hospital within 1 month before screening was accepted, provided that no antibiotics were used for ≥14 days before the culture);
Key exclusion criteria (14 listed)
- Patients who are allergic to or cannot tolerate the investigational drugs (Tobramycin, Ciprofloxacin)
- Comorbid uncontrolled asthma (defined as ≥1 acute exacerbation within 1 week prior to screening); confirmed bronchiectasis due to cystic fibrosis; Allergic Bronchopulmonary Aspergillosis (ABPA); active pulmonary tuberculosis; or nontuberculous mycobacterial infection requiring standard anti-nontuberculous treatment;
- Participants with unstable cardiovascular and cerebrovascular diseases, defined as those who have experienced clinically worsening symptoms (such as unstable angina, rapid atrial fibrillation, cerebral hemorrhage, acute cerebral infarction, etc.) or have been hospitalized due to these diseases within 90 days prior to the screening
- Participants with progressive or uncontrolled systemic diseases, such as those affecting the urinary, hematological, digestive, endocrine, respiratory, circulatory, nervous, or mental systems, are not suitable for this clinical trial. This is particularly the case if these conditions are evaluated by the researcher as being unstable or potentially escalating into severe conditions during the trial.
- AST and/or ALT >2 ULN and/or Total Bilirubin (TBIL) at screening period
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 |
|---|---|---|
| Tobramycin Inhalant ProductAlso: Inhaled antibioticsTobramycin will be nebulized (300mg twice daily) with an ultrasonic nebulizer. A total of 12 weeks therapy will be scheduled. | Drug | Combination group, Tobramycin inhalation solution alone group |
| Ciprofloxacin 750 MGAlso: Oral antibioticsOral ciprofloxacin 750mg twice daily will be prescribed for 2 weeks. | Drug | Combination group, Oral ciprofloxacin alone group |
| Oral ciprofloxacin placeboAlso: Oral antibioticsOral ciprofloxacin placebo twice daily will be prescribed for 2 weeks. | Drug | Placebo group, Tobramycin inhalation solution alone group |
| Natural saline inhalationAlso: Inhaled salineNatural saline will be nebulized (5ml twice daily) with an ultrasonic nebulizer. A total of 12 weeks therapy will be scheduled. | Drug | Oral ciprofloxacin alone group, Placebo group |
Primary outcome
The proportion of subjects with sustained negative sputum cultures for Pseudomonas aeruginosa (defined as negative sputum culture results on two consecutive occasions separated by an interval of 12 weeks or more) after first drug administration.
Time frame: 36 weeks
The proportion of subjects with sustained negative sputum cultures for Pseudomonas aeruginosa after first drug administration. This is defined as negative sputum culture results on two consecutive occasions separated by an interval of 12 weeks or more.
20 secondary outcomes
Proportion of patients with a negative Pseudomonas aeruginosa sputum culture at 12 weeks after the first drug administration.
Time frame: 12 weeks
Proportion of patients with a negative Pseudomonas aeruginosa sputum culture at 24 weeks after the first drug administration.
Time frame: 24 weeks
Proportion of patients with a negative Pseudomonas aeruginosa sputum culture at 36 weeks after the first drug administration.
Time frame: 36 weeks
Time to first pulmonary exacerbation of bronchiectasis after the first drug administration.
Time frame: 36 weeks
Frequency of pulmonary exacerbations of bronchiectasis after the first drug administration.
Time frame: 12 weeks
Frequency of pulmonary exacerbations of bronchiectasis after the first drug administration.
Time frame: 36 weeks
Time to reoccurrence of Pseudomonas aeruginosa infection since randomization.
Time frame: 36 weeks
Absolute change from baseline in 1 second [FEV1] at 12, 24, and 36 weeks.
Time frame: Assessed at 12 weeks, 24 weeks and 36 weeks after the first drug administration.
Absolute change from baseline in forced vital capacity [FVC] at 12, 24, and 36 weeks
Time frame: Assessed at 12 weeks, 24 weeks and 36 weeks after the first drug administration.
Absolute change from baseline in forced expiratory flow between 25 and 75% of forced vital capacity [FEF25%-75%] at 12, 24, and 36 weeks.
Time frame: Assessed at 12 weeks, 24 weeks and 36 weeks after the first drug administration.
Proportion of hospitalisations due to bronchiectasis after the first drug administration.
Time frame: 24 weeks
Proportion of hospitalisations due to bronchiectasis after the first drug administration.
Time frame: 36 weeks
Absolute change from baseline in health-related quality of life, as measured by the Quality-of-Life Bronchiectasis Respiratory Symptom Scale (QOL-B-RSS) score at 12, 24, and 36 weeks.
Time frame: Assessed at 12 weeks, 24 weeks and 36 weeks after the first drug administration.
Absolute change from baseline in health-related quality of life, as measured by the St George's Respiratory Questionnaire (SGRQ) score at 12, 24, and 36 weeks.
Time frame: Assessed at 12 weeks, 24 weeks and 36 weeks after the first drug administration.
Absolute change from baseline in health-related quality of life, as measured by the EuroQol Five Dimensions Questionnaire (EQ-5D-5L) score at 12, 24, and 36 weeks.
Time frame: Assessed at 12 weeks, 24 weeks and 36 weeks after the first drug administration.
Number of hospitalisations per person.
Time frame: 36 weeks.
Cost per hospitalisation per person.
Time frame: 36 weeks
Isolation rate of other pathogenic microorganisms at 12 weeks, 24 weeks, and 36 weeks.
Time frame: Assessed at 12 weeks, 24 weeks and 36 weeks after the first drug administration.
Proportion of subjects developing resistance to tobramycin or ciprofloxacin after enrolment.
Time frame: 36 weeks
Incidence of adverse events and serious adverse events.
Time frame: 36 weeks
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 17 Apr 2026.
- Background: PubMed 28889110Polverino 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.
- Background: PubMed 30545985Hill AT, Sullivan AL, Chalmers JD, De Soyza A, Elborn SJ, Floto AR, Grillo L, Gruffydd-Jones K, Harvey A, Haworth CS, Hiscocks E, Hurst JR, Johnson C, Kelleher PW, 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. Thorax. 2019 Jan;74(Suppl 1):1-69. doi: 10.1136/thoraxjnl-2018-212463. No abstract available.
- Background: PubMed 27288031Aliberti S, Masefield S, Polverino E, De Soyza A, Loebinger MR, Menendez R, Ringshausen FC, Vendrell M, Powell P, Chalmers JD; EMBARC Study Group. Research priorities in bronchiectasis: a consensus statement from the EMBARC Clinical Research Collaboration. Eur Respir J. 2016 Sep;48(3):632-47. doi: 10.1183/13993003.01888-2015. Epub 2016 Jun 10.
- Background: PubMed 22204744White L, Mirrani G, Grover M, Rollason J, Malin A, Suntharalingam J. Outcomes of Pseudomonas eradication therapy in patients with non-cystic fibrosis bronchiectasis. Respir Med. 2012 Mar;106(3):356-60. doi: 10.1016/j.rmed.2011.11.018. Epub 2011 Dec 26.
- Background: PubMed 28404646Vallieres E, Tumelty K, Tunney MM, Hannah R, Hewitt O, Elborn JS, Downey DG. Efficacy of Pseudomonas aeruginosa eradication regimens in bronchiectasis. Eur Respir J. 2017 Apr 12;49(4):1600851. doi: 10.1183/13993003.00851-2016. Print 2017 Apr. No abstract available.
- Background: PubMed 31480862Blanco-Aparicio M, Saleta Canosa JL, Valino Lopez P, Martin Egana MT, Vidal Garcia I, Montero Martinez C. Eradication of Pseudomonas aeruginosa with inhaled colistin in adults with non-cystic fibrosis bronchiectasis. Chron Respir Dis. 2019 Jan-Dec;16:1479973119872513. doi: 10.1177/1479973119872513.
- Background: PubMed 26340658Orriols R, Hernando R, Ferrer A, Terradas S, Montoro B. Eradication Therapy against Pseudomonas aeruginosa in Non-Cystic Fibrosis Bronchiectasis. Respiration. 2015;90(4):299-305. doi: 10.1159/000438490. Epub 2015 Sep 5.
- Background: PubMed 30635292Pieters A, Bakker M, Hoek RAS, Altenburg J, van Westreenen M, Aerts JGJV, van der Eerden MM. The clinical impact of Pseudomonas aeruginosa eradication in bronchiectasis in a Dutch referral centre. Eur Respir J. 2019 Apr 11;53(4):1802081. doi: 10.1183/13993003.02081-2018. Print 2019 Apr. No abstract available.
- Individual participant dataSharing planned: No
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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. This study is not recruiting at the moment.
Jin-Fu Xu, MD, PhD principal investigator
Tongji Hospital, School of Medicine, Tongji University; Shanghai Pulmonary Hospital, School of Medicine, Tongji University; Huadong Hospital, School of Medicine, Fudan University
60 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 4 study testing Tobramycin Inhalant Product, Ciprofloxacin 750 MG and Natural saline inhalation in people with Bronchiectasis Adult and Pseudomonas Aeruginosa Infection, run by Jin-Fu Xu at 60 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 10 inclusion and 14 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: finished, as of the sponsor's last update on 17 Apr 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 60 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. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
The proportion of subjects with sustained negative sputum cultures for Pseudomonas aeruginosa (defined as negative sputum culture results on two consecutive occasions separated by an interval of 12 weeks or more) after first drug administration. (time frame: 36 weeks). 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 NCT06093191, which also lists 8 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 17 Apr 2026.