RecruitingNot Applicable

Exploring the Diagnostic Performance of Dynamic Chest Radiology in Chronic Obstructive Pulmonary Disease

China2,500 participantsStarted 2024-01-01

Plain-language summary

The prevalence of chronic obstructive pulmonary disease (COPD) is on the rise, leading to an increasing economic and social burden. Currently, the diagnosis and staging of COPD heavily rely on pulmonary function testing. However, limitations such as patient cooperation and comorbidities can hinder accurate diagnosis. In situations like a respiratory pandemic, pulmonary function testing may not be feasible. Dynamic chest radiography has emerged as a promising area of research due to its quick procedure, high patient cooperation, low risk, minimal radiation exposure, and reduced direct contact. Recent clinical studies have started to explore the relationship between dynamic chest X-ray measurements and lung function parameters. However, there is a noticeable scarcity of research focusing on the use of dynamic chest X-ray in aiding the diagnosis of COPD, particularly in Chinese populations where cohort data is lacking. Consequently, there is a pressing need to investigate the correlation between various dynamic chest radiograph parameters and lung function indicators, as well as their potential diagnostic value in COPD.

Who can participate

Age range

40 Years – 80 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: \- COPD group: (1) Patients ≥30 years of age and ≤ 80 years of age who meet the 2023 GOLD Guidelines for the Diagnosis and Treatment of Chronic Obstructive Pulmonary Disease, i.e., anyone who complains of dyspnea, chronic cough or sputum, a history of recurrent lower respiratory infection and/or exposure to disease risk factors, Moreover, pulmonary function examination indicated that FEV1/FVC \<0.7 after bronchodilator was used to confirm COPD. FEV1%pred is used to determine the severity of airflow obstruction: Grade GOLD 1 (mild) : FEV1%pred ≥ 80%, Grade GOLD2 (moderate) : 50% ≤ FEV1%pred \< 80%, grade GOLD3 (severe) : 30% ≤ FEV1%pred \< 50%, GOLD4 grade (extremely severe) : FEV1%pred \< 30%; (2) Signing informed consent; (3) Can cooperate with the completion of dynamic chest X-ray (complete dynamic chest X-ray positioning for 20 seconds, during which calm breathing, hard breathing, can hold breath for at least 7 seconds). Normal Group: (1) Age ≥30 years old and ≤ 80 years old; (2) Normal pulmonary ventilation function; (3) Exclude chronic airway diseases (such as COPD, asthma, bronchiectasis, etc.); (4) Signing informed consent; (5) Can cooperate with the completion of dynamic chest X-ray (complete dynamic chest X-ray positioning for 20 seconds, during which calm breathing, hard breathing, can hold breath for at least 7 seconds). Exclusion Criteria: * COPD group: (1) A history of cancer, lung surgery, other lung diseases (such as pneumonia, active tu…

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Dynamic chest radiographs were used to measure diaphragm movement, lung field area and lung field area change rate

Timeframe: 3 year

Trial details

NCT IDNCT06653413

SponsorNanfang Hospital, Southern Medical University

Sponsor typeOTHER

Study typeOBSERVATIONAL

Primary completion2027-12-01

Contact for this trial

Laiyu Liu, professor

+86 13632102245 liulaiyu@sina.com

View on ClinicalTrials.gov More Chronic Obstructive Pulmonary Disease (COPD) trials