NCT06503939Completed
Etiology Analysis of Chronic Cough After COVID-19 Infection and Research on the Efficacy of ICS or ICS/LABA
Source: ClinicalTrials.gov · Last updated 22 Sept 2026
Brief summary (registry, in English)
In this real-world study, we retrospectively classified the causes of chronic cough in patients, analyzed the prevalence of cough-variant asthma, and prospectively evaluated and compared the improvement of cough symptoms and quality of life after ICS/LABA or non-ICS/LABA treatment.
- Status (registry)
- Completed
- Study type
- Observational
- Enrollment
- 750 (actual)
- First submitted
- 14 Jul 2024
- Start date
- 1 Mar 2023
- Primary completion date
- 31 Mar 2024
- Lead sponsor
- Xiangya Hospital of Central South University
- Diseases
- Long COVID and ME/CFS
- NCT number
- NCT06503939
What you commit to
- Study type: Observational
- Participants enrolled: 750
- From 1 Mar 2023 to the primary completion date, 31 Mar 2024
- 1 site in 1 country
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Prior treatment
- The patient has previously been diagnosed with respiratory diseases with cough as one of the main symptoms, including cough variant asthma, allergic bronchitis, eosinophilic bronchitis, gastroesophageal reflux disease, chronic obstructive pulmonary disease, chronic bronchitis, bronchiectasis, interstitial lung disease, pulmonary/tracheobronchial tuberculosis, etc.;
Other
- The patient refused pulmonary function and blood tests;
- Patients who are pregnant or breastfeeding;
- The patient's medical records are incomplete;
- Patients lost to follow-up.
Who the study is looking for
- Age ≥18 years old;
- A clear history of COVID-19 infection with a positive nucleic acid or antigen test before chronic cough;
- Persistent cough for more than 8 weeks after the acute phase of COVID-19 infection has disappeared;
- Chest X-ray and/or chest CT without significant evidence of lung disease;
- No history of chronic cough (\>8 weeks) prior to COVID-19 infection.
Age in the registry: 18 years to - · Sex: All · Does not accept healthy volunteers
Sites (1)
Sites in registry order. Pick your city on the disease page to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| Xiangya Hospital Central South University Coordinator of this site? Confirm its status | Changsha | China | Unknown status |
This page is information, not medical advice. Discuss any trial with your doctor.