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Pulmonary FunctionNCT03193879

Effects of Particulate Matter on the Pulmonary Function and Acute Exacerbation of COPD and Asthma

An observational study of Pulmonary Function, run by Peking Union Medical College Hospital at 1 site in China.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Particulate matter(PM) exposure has been shown to increase the morbidity and mobility of a variety of respiratory diseases, including COPD and asthma. This study focus on the effects of PM on the pulmonary function and acute exacerbation of COPD and asthma patients in China, where PM exposure is much heavier than the… Read more about this study

Who is it for?
Ages 18 to 75 yearsHealthy volunteers can take part
Conditions the study is for
Pulmonary Function
How many people
505 participants
Where
1 siteChina
Study dates
Dec 2015to Sep 2021
How long will I take part?
2 Years
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 75 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: Clinic-based population

Who may be able to join

  • COPD patients: clinical manifestation of COPD; post bronchodilator FEV1/FVC<0.70.
  • Asthma patients: clinical manifestation of asthma; recurrent dyspnea; with or without wheezing; relief spontaneously or after using bronchodilators; FEV1/FVC<0.70,with positive bronchial reversible test.
  • Asthma combined with COPD (ACOS) patients: patients with ACOS are included in asthma group.
  • Healthy volunteers: No smoking history, or have quit smoking at least 5 years. Chest X-ray show no abnormality.
  • Information consent form should be signed before entering the study.

Who cannot join

  • The latest severe acute attack occurred within 4 weeks:
  • Severe acute attack: status asthmaticus or acute exacerbation of COPD leading to consultation, emergency treatment,hospitalization, or glucocorticoid treatment(oral/i.v).
  • Controllable non-hospitalized acute attack without glucocorticoid treatment(oral/i.v). COPD attack lasting less than 48h or asthma attack lasting less than 24h are not excluded.
  • Any history of acute/chronic respiratory diseases other than asthma and COPD, including lung cancer and pulmonary infection.
  • Plasma ALT or AST greater than 2 times of the upper normal limit; plasma Creatinine greater than 1.5 times of the upper normal limit.
  • Left heart insufficiency, or malignant arrhythmia.
Show all 12Show fewer
  • HIV positive.
  • Acute cerebrovascular events within 3 months, including apoplexy, transient cerebral ischemia and acute coronary syndrome.
  • Uncured malignant tumors.
  • Addicted to drug or alcohol, or any history of psychiatric disorders.
  • Breastfeeding, pregnancy or planning to be pregnant.
  • Estimated lifetime less than 2 years due to underlying diseases.

Trial locations and contacts

1 site in 1 country.

China1 site
  • Peking Union Medical College Hospital

    Beijing, Beijing Municipality, 100730

Other trials in China

About this study

Official title: Effects of Particulate Matter on the Lung Function and Acute Exacerbation of COPD and Asthma Patients--A Multi-center Cohort Study

Particulate matter(PM) exposure has been shown to increase the morbidity and mobility of a variety of respiratory diseases, including COPD and asthma. This study focus on the effects of PM on the pulmonary function and acute exacerbation of COPD and asthma patients in China, where PM exposure is much heavier than the United States and European countries.

Read the detailed description

Particulate matter(PM) exposure has been shown to increase the morbidity and mobility of a variety of respiratory diseases, including COPD and asthma. This study focus on the effects of PM on the pulmonary function and acute exacerbation of COPD and asthma patients in China, where PM exposure is much heavier than the United States and European countries. This study is an observational study which lasts 3 years. Primary outcome measures:Change in spirometry (FEV1) of COPD, asthma patients and healthy volunteers in response to different exposure doses of PM.

Keywords
Pulmonary function, Particulate matter, COPD, Asthma
Medical subject headings
Pulmonary Disease, Chronic Obstructive, Asthma

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT03193879
Study groupRoleWhat they receive
COPD groupCOPD patients
Asthma groupAsthma patients
Health groupHealthy volunteers

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change in spirometry (FEV1) of COPD, asthma patients and healthy volunteers in response to different exposure doses of PM.

    Spirometry will be assessed at baseline and through study completion, an average of 2 years.

    Measured: 2 years

Secondary outcomes (1)
  1. Change in morbidity of acute exacerbation in COPD and asthma patients in response to different exposure doses of PM.

    Patients will be followed up through study completion, an average of 2 years.

    Measured: 2 years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted21 Jun 2017
  2. Study startDec 2015
  3. Primary completionSep 2021
  4. Study completionSep 2021

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
505 participants (actual)
Target duration
2 Years
IDs, dates and publications
ClinicalTrials.gov ID
NCT03193879
Sponsor's protocol ID
2015CB553402
Status last verified
Sep 2021
First submitted
14 Jun 2017
Last updated
21 Sep 2021
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Questions about this trial

What is this clinical trial studying?

An observational study of Pulmonary Function, run by Peking Union Medical College Hospital at 1 site in China.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 12 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 21 Sep 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in China. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change in spirometry (FEV1) of COPD, asthma patients and healthy volunteers in response to different exposure doses of PM. (time frame: 2 years). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 21 Sep 2021.

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