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Hong kong study reveals hidden overlap of asthma and COPD

NCT ID NCT03272932

Knowledge-focused Sponsor: Chinese University of Hong Kong Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing This study
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looks at 1,600 adults in Hong Kong who have been diagnosed with asthma or COPD to find out how many have both conditions (called Asthma-COPD Overlap). Researchers will track their health for 3 years to see how they do and whether their treatment matches guidelines. The goal is to better understand this overlap and improve care.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

About 1,600 people

The number the study aims to enrol. It can still change while the study runs.

Started

Sep 2017

Expected to finish

Dec 2026

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

Subjects with asthma or COPD

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: Subjects must fulfil all of the following criteria: * All patients with confirmed diagnosis of COPD (post-bronchodilator FEV1/FVC\<0.7 based on the medical records) 1 or asthma (defined as those with a consistent history and prior documented evidence of variable airflow obstruction, with evidence of an increase in FEV1 greater than 12% or 400 mL following bronchodilator or bronchial hyperresponsiveness on bronchial provocation testing, when stable) 6 * Aged \>40 years old * Signed written informed consent to participate in the study Exclusion Criteria: * Patients currently with acute exacerbation of COPD by GOLD definition (any worsening of a patient's respiratory symptoms that is beyond normal day-to-day variations and requires a change in medication) 1 or acute exacerbation of asthma by GINA guideline. 6 * Patients with respiratory diseases that can show similar symptoms to chronic airway diseases such as bronchiectasis, tuberculosis (TB)-destroyed lung parenchyma, endobronchial TB, and lung cancer, or those who have history of these diseases based on physician's judgment * Patients currently diagnosed with pneumonia and acute bronchitis * Patients currently randomized in other clinical studies

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Conditions

The condition(s) this trial relates to.

asthma chronic obstructive pulmonary disease COPD, severe early onset

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Asthma COPD

Contacts and locations

Locations

  • Prince of Wales Hospital

    Hong Kong, Hong Kong

More trials for these conditions

Other studies related to the condition(s) this trial covers.