Azithromycin Treatment for Non-eosinophilic Chest Tightness Variant Asthma

Sponsor
Second Affiliated Hospital, School of Medicine, Zhejiang University (Other)
Overall Status
Not yet recruiting
CT.gov ID
NCT05596721
Collaborator
(none)
248
13
2
14.9
19.1
1.3

Study Details

Study Description

Brief Summary

Bronchial asthma (abbr. asthma) is one of common airway chronic inflammatory disease which usually threatens human health. Typical symptoms of asthma are recurrent wheezing, shortness of breath, chest tightness and cough, usually happened at night or in early morning. However, there are still some patients who persist only clinical manifestations of chest tightness, namely, chest tightness variant asthma (CTVA). This subgroup of asthma usually lacks asthma-specific clinical features, therefore, often misdiagnosed and lack of effective treatment for a long time. The investigators' previous studies have found that CTVA has eosinophilic and non-eosinophilic subtypes. These patients with non-eosinophilic CTVA (NE-CTVA) are not sensitive to ICS/LABA, which guidelines recommend. At present, the specific treatment plan for NE-CTVA is urgently needed to elucidate. Azithromycin has immunomodulatory and anti-inflammatory effects in addition to their antibacterial effects. Maintenance treatment with azithromycin has been proved to be effective in chronic neutrophilic airway diseases and severe asthma. However, there are no clinical studies to confirm the effectiveness of azithromycin in non-eosinophilic asthma, especially atypical asthma such as NE-CTVA. Now the investigators performed a national multi-center study to explore whether azithromycin improves asthma symptom control and improves quality of life in people with NE-CTVA. Finally, to find an optimal treatment for NE-CTVA.

Condition or Disease Intervention/Treatment Phase
Phase 4

Detailed Description

Bronchial asthma (abbr. asthma) is one of common airway chronic inflammatory disease which usually threatens human health. Typical symptoms of asthma are recurrent wheezing, shortness of breath, chest tightness and cough, usually happened at night or in early morning. However, there are still some patients who persist only clinical manifestations of chest tightness. Focus on this group of patients, the investigators proposed a subgroup of bronchial asthma, namely, chest tightness variant asthma (CTVA). This subgroup of asthma usually lacks asthma-specific clinical features such as wheezing, shortness of breath, wheezing, therefore, often misdiagnosed for a long time.

The investigators' previous studies have found that CTVA is like the clinical classification of common asthma and cough variant asthma (CVA), and there are also eosinophilic and non-eosinophilic subtypes in CTVA. These patients with non-eosinophilic CTVA (NE-CTVA) are not sensitive to ICS/LABA, which guidelines recommend, and have lower FeNO values than sensitive CTVAs. At present, the specific treatment plan for NE-CTVA is a special clinical asthma phenotype, and further clinical studies are urgently needed to elucidate.

Azithromycin has immunomodulatory and anti-inflammatory effects in addition to their antibacterial effects. Maintenance treatment with azithromycin has been proved to be effective in chronic neutrophilic airway diseases including chronic obstructive pulmonary disease, cystic fibrosis, bronchiectasis and diffuse panbronchiolitis. Whilst azithromycin is effective and recommended in current American Thoracic Society (ATS) / European Respiratory Society (ERS) and Global Initiative for Asthma (GINA) guidelines for selected persistently symptomatic adults with severe asthma. However, there are no clinical studies to confirm the effectiveness of azithromycin in non-eosinophilic asthma, especially atypical asthma such as NE-CTVA.

The investigators conduct a national multi-center, prospective randomized trial to test the hypothesis that azithromycin improves symptom control and improves quality of life in people with NE-CTVA. To this end, the recruited participants will be randomly divided into ICS/LABA

  • azithromycin group and ICS/LABA group. The treatment period is 12 weeks, and then to evaluate the revised-asthma control questionnaire (r-ACQ) score, asthma quality of life questionnaire (AQLQ) score, self-rating anxiety scale (SAS), self-rating depression scale (SDS), lung function, and numbers of emergency or hospitalization. Provide clinical evidence for the optimal treatment of NE-CTVA.

Study Design

Study Type:
Interventional
Anticipated Enrollment :
248 participants
Allocation:
Randomized
Intervention Model:
Parallel Assignment
Masking:
None (Open Label)
Primary Purpose:
Treatment
Official Title:
Effect of Azithromycin With ICS/LABA in Non-eosinophilic Chest Tightness Variant Asthma: a Multicentre Randomized Trial
Anticipated Study Start Date :
Jan 1, 2023
Anticipated Primary Completion Date :
Mar 31, 2024
Anticipated Study Completion Date :
Mar 31, 2024

Arms and Interventions

Arm Intervention/Treatment
Experimental: Azithromycin + ICS/LABA

Azithromycin: 500mg, po, 3 times per week for 12w ICS/LABA: Budesonide and Formoterol Fum arate Powder for Inhalation, 1 inhale, bid for 12w

Drug: Azithromycin
Treat patient with azithromycin for 12w.

Drug: ICS/LABA
Treat patient with ICS/LABA according to Global Initiative for Asthma (GINA) guideline.

Placebo Comparator: ICS/LABA

ICS/LABA: Budesonide and Formoterol Fum arate Powder for Inhalation, 1 inhale, bid for 12w

Drug: ICS/LABA
Treat patient with ICS/LABA according to Global Initiative for Asthma (GINA) guideline.

Outcome Measures

Primary Outcome Measures

  1. r-ACQ [Change from Baseline ACQ at 12 weeks]

    Revised-asthma control questionnaire.

Secondary Outcome Measures

  1. FEV1 [Change from Baseline at 4 weeks, 8 weeks, and 12 weeks]

    Perform pulmonary function tests of patients and record the forced expiratory volume in one second.

  2. Airway responsiveness [Change from Baseline at 4 weeks, 8 weeks, and 12 weeks]

    Perform pulmonary function tests of patients and record the PD20-FEV1.

  3. PEF [Change from Baseline at 4 weeks, 8 weeks, and 12 weeks]

    Perform pulmonary function tests of patients and record the peak expiratory flow.

  4. AQLQ [Change from Baseline at 4 weeks, 8 weeks, and 12 weeks]

    Asthma quality of life questionnaire.

  5. SAS [Change from Baseline at 4 weeks, 8 weeks, and 12 weeks]

    Self-rating Anxiety Scale.

  6. SDS [Change from Baseline at 4 weeks, 8 weeks, and 12 weeks]

    Self-rating Depression Scale.

  7. Numbers of emergency or hospitalization [Change from Baseline at 4 weeks, 8 weeks, and 12 weeks]

    Record the numbers of emergency or hospitalization because asthma.

Eligibility Criteria

Criteria

Ages Eligible for Study:
14 Years to 80 Years
Sexes Eligible for Study:
All
Accepts Healthy Volunteers:
No
Inclusion Criteria:
  1. all subjects agreed to participate, understand the project, observe the use of drugs, agree to follow-up, and signed informed consent;

  2. the age of more than 14 and less 80 years old, gender and ethnicity are not limited;

  3. the duration time was more than 6 months,and chest tightness was the only complaint, without breathing, short of breath, chronic cough;

  4. no wheezing;

  5. a diagnosis of asthma supported by one or more other characteristics:

  • bronchial provocation test positive;

  • improvement in forced expiratory volume at one second (FEV1) of more than 12% and 200 ml after inhaled salbutamol;

  • variability in diurnal peak expiratory flow (PEF) of more than 10% for one day during one week.

  1. blood eosinophils < 150/µl and FeNO < 20 ppb;

  2. exclude the following diseases by the corresponding doctors: coronary heart disease, myocarditis, heart failure, GERD, neuromuscular disease, and mental disease.

Exclusion Criteria:
  1. can not cooperate with related inspection or for other reasons;

  2. patients with chronic obstructive pulmonary disease, interstitial pneumonia, active tuberculosis, community acquired pneumonia, lung cancer, bronchiectasis, cor pulmonale, pulmonary embolism, and accompanied with serious systematic disease (such as coronary heart disease, myocarditis, heart failure, gastroesophageal reflux disease, neuromuscular disease, etc);

  3. history of chronic hepatic kidney or neurologic disorder;

  4. history of drug abuse, alcohol abuse or anesthesia or with a history of mental illness (schizophrenia, obsessive-compulsive disorder, depression) and against personality, motivation, suspicious, or other emotional or mental issues that may affect participation in the study;

  5. taking part in other drug clinical trial project, or drop out less than 3 months;

  6. during pregnancy, lactation women;

  7. obvious abnormal of High Resolution CT;

  8. macrolide allergy;

  9. received azithromycin treatment in the past 2 weeks;

  10. hearing impairment or abnormally prolonged QTc interval.

Contacts and Locations

Locations

Site City State Country Postal Code
1 China-Japan Friendship Hospital Beijing Beijing China
2 Xinqiao Hospital, Third Military Medical University Chongqing Chongqing China
3 The First Affiliated Hospital,Guangzhou Medical University Guangzhou Guangdong China
4 The Second Xiangya Hospital of Central South University Changsha Hunan China
5 Jiangsu Province Hospital Nanjing Jiangsu China
6 The Central Hospital of Shenyang Military Shenyang Liaoning China
7 Xijing Hospital Xi'an Shaanxi China
8 Qilu Hospital, Shandong University Jinan Shandong China
9 Changhai Hospital, Second Military Medical University Shanghai Shanghai China
10 Ruijin Hospital, Shanghai Jiaotong University Shanghai Shanghai China
11 Shanghai General Hospital Shanghai Shanghai China
12 Zhongshan Hospital, Fudan University Shanghai Shanghai China
13 The Second Affiliated Hospital, School of Medicine, Zhejiang University, China Hanzhou Zhejiang China

Sponsors and Collaborators

  • Second Affiliated Hospital, School of Medicine, Zhejiang University

Investigators

  • Study Chair: Huahao Shen, M.D., The Second Affiliated Hospital, School of Medicine, Zhejiang University, China

Study Documents (Full-Text)

None provided.

More Information

Publications

None provided.
Responsible Party:
Second Affiliated Hospital, School of Medicine, Zhejiang University
ClinicalTrials.gov Identifier:
NCT05596721
Other Study ID Numbers:
  • AZNECTVA
First Posted:
Oct 27, 2022
Last Update Posted:
Nov 4, 2022
Last Verified:
Oct 1, 2022
Studies a U.S. FDA-regulated Drug Product:
No
Studies a U.S. FDA-regulated Device Product:
No
Product Manufactured in and Exported from the U.S.:
No
Keywords provided by Second Affiliated Hospital, School of Medicine, Zhejiang University
Additional relevant MeSH terms:

Study Results

No Results Posted as of Nov 4, 2022