Not Yet RecruitingNot Applicable

Comparing Ultrasonic and Conventional Spirometry in Chronic Respiratory Disease

Taiwan100 participantsStarted 2026-03-02

Plain-language summary

This study compares a handheld ultrasonic spirometer with a standard hospital spirometer in adults with chronic respiratory diseases. Each participant will complete lung function tests using both devices. The study aims to determine whether the ultrasonic device provides accurate and reliable measurements for use in clinical or home settings.

Who can participate

Age range

18 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: * Adults aged 18 to 80 years. * Diagnosed with a chronic respiratory disease (e.g., COPD, asthma, bronchiectasis, or interstitial lung disease). * Willing to follow the instructions for using the ultrasonic spirometer. * Clinically stable and able to understand the study purpose and procedures, and who provide informed consent. Exclusion Criteria: * Individuals who, after explanation, are still unable to properly perform the ultrasonic spirometry procedure. * Individuals who, after explanation, refuse to participate in the study. * Patients with unstable vital signs. * Pregnant or suspected pregnant women.

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

Agreement of FEV1 between Ultrasonic and Conventional Spirometers

Timeframe: one day

Trial details

NCT IDNCT07447232

SponsorFu Jen Catholic University

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2026-06-30

Contact for this trial

Ke-Yun Chao, PhD

+886905301879 148540@mail.fju.edu.tw

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