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Cleaner air, better lungs? new study tests air purifiers for COPD

NCT ID NCT07505602

Disease control Sponsor: Fudan University Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 is testing whether using an indoor air purifier can improve lung health in people with Chronic Obstructive Pulmonary Disease (COPD). About 120 adults with COPD who live in Shanghai will use either a real air purifier or a placebo device in their homes for a period of time. Researchers will measure changes in lung function and breathing symptoms to see if cleaner air makes a difference.

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.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 120 people

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

Started

Mar 2026

Expected to finish

Dec 2027

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.

Ages

50 to 80 years

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: * Age between 50 and 80 years old * Physician diagnosis of COPD * Living in Shanghai during the intervention period * Subjects who have no plans to change homes during the intervention period * Non-smokers and former smokers Exclusion Criteria: * Subjects living in a location other than home * Subjects with a history of alcohol abuse * Subjects with other chronic lung diseases, such as active tuberculosis, pulmonary fibrosis, cystic fibrosis, or alpha-1 antitrypsin deficiency * Subjects with a history of thoracic surgery * Subjects with a history of malignant tumors, such as lung cancer, liver cancer, or gastric cancer * Subjects with diagnosed chronic hepatic or renal insufficiency, such as liver cirrhosis, chronic viral hepatitis, or autoimmune liver disease * Subjects with acute myocardial infarction or unstable arrhythmia diagnosed within the past 6 weeks * Subjects currently participating in other interventional studies

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Conditions

The condition(s) this trial relates to.

chronic obstructive pulmonary disease

As listed by the trial registrant

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

Respiratory health

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • School of Public Health, Fudan University

    RECRUITING

    Shanghai, China

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