AzTrials
AzTrials

Chronic Obstructive Pulmonary DiseaseNCT02964117

Associations Between Air Pollutants Exposures and Respiratory System Study

An observational study of Chronic Obstructive Pulmonary Disease, run by Peking University Third Hospital.

Completed

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

Official record
Search all trials

Trial summary

Epidemiological investigations has suggested exposure to air pollution linked with respiratory disease, especially chronic obstructive pulmonary disease. However, the potential mechanisms of adverse effects remains scare. Read more about this study

Who is it for?
Ages 23 to 82 yearsHealthy volunteers can take part
Conditions the study is for
Chronic Obstructive Pulmonary Disease
How many people
106 participants
Where
No sites listed yet
Study dates
Nov 2014to Jan 2016
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 23 to 82 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: Subjects including health volunteers and COPD patients,both of them without severe cardiopulmonary diseases and long-term residents in Beijing

Who may be able to join

  • Long-term residents, aged >23 and <82 years

Who cannot join

  • Severe cardiopulmonary diseases, active inflammatory diseases, cancer

About this study

Epidemiological investigations has suggested exposure to air pollution linked with respiratory disease, especially chronic obstructive pulmonary disease. However, the potential mechanisms of adverse effects remains scare. The present study will assess the association between air pollutants and respiratory related parameters to elucidate possible mechanisms.

Keywords
Chronic Obstructive Pulmonary Disease
Medical subject headings
Pulmonary Disease, Chronic Obstructive

What is being measured

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

  1. Lung Function indices were performed in peking university third hospital

    Lung Function indices including FEV1(ml), FVC(ml),the ratio of FEV1/FVC et, al.. When we perform data analysis,these parameters will be expressed as the percentage of the predicted values based on the subject-specific sex, age,height and weight.

    Measured: Repeated-measure study was conducted from November,2014 to January,2016,lung function was measured by every four months

Secondary outcomes (1)
  1. Inflammation related biomarkers were measured by flow cytometry

    Inflammation related factors including IL,TNFa et, al. all biomarkers units are pg/ml.

    Measured: Repeated-measure study was conducted from November,2014 to January,2016,biomarkers were measured by every four months

Timeline

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

  1. First posted15 Nov 2016 (estimated)
  2. Study startNov 2014
  3. Primary completionJan 2016
  4. Study completionJan 2016

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
106 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02964117
Sponsor's protocol ID
Apers Study
Status last verified
Nov 2016
First submitted
31 Oct 2016
Last updated
15 Nov 2016
Results posted
No
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

An observational study of Chronic Obstructive Pulmonary Disease, run by Peking University Third Hospital.

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 1 inclusion and 1 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 15 Nov 2016. Status can change between updates, so confirm with the study contact before making plans.

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?

Lung Function indices were performed in peking university third hospital (time frame: Repeated-measure study was conducted from November,2014 to January,2016,lung function was measured by every four months). 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 15 Nov 2016.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in