FindTrial
Sign In

Retrospective analysis of airway volume and dead space changes during asthma challenge test in asthma patients

Retrospective analysis of airway volume and dead space changes during asthma challenge test in asthma patients

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR1800017880
Enrollment
Unknown
Registered
2018-08-20
Start date
2010-10-01
Completion date
Unknown
Last updated
2018-08-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

asthma

Interventions

Case series:Nil

Sponsors

???
Lead Sponsor

Eligibility

Sex/Gender
All
Age
19 Years to 64 Years

Inclusion criteria

Inclusion criteria: 1. Patients suspected of having cough variant asthma and having chronic cough symptoms; 2. According to the results of the challenge test and diastolic test, it is divided into asthma group and control group. Diagnostic criteria 2018 GINA guide.

Exclusion criteria

Exclusion criteria: 1. With unstable angina; 2. With major chronic systemic diseases, such as heart failure, diabetes, infection, etc.; 3. With other chronic respiratory diseases, such as obvious fiber chest, branch expansion, cystic fiber Chemotherapy, bronchial asthma, etc.; 4. Patients who need systemic hormone therapy for certain diseases.

Design outcomes

Primary

MeasureTime frame
Forced expiratory volume in the first second;—

Countries

China

Contacts

Public ContactSun Xiaoli

Shanghai Pulmonary Hospital Tongji University School of Medicine

sunxiaoli20@163.com+86 15002143919

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026