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Chronic Obstructive Pulmonary DiseaseEpiCOPDptNCT06523257

Prevalence of Chronic Obstructive Pulmonary Disease in the Portuguese Population

An observational study of Chronic Obstructive Pulmonary Disease, run by Sociedade Portuguesa de Pneumologia.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

The EpiCOPDpt Study (Prevalence of Chronic Obstructive Pulmonary Disease in the Portuguese Population) primary objective is to estimate the prevalence of Chronic Obstructive Pulmonary Disease (COPD) in the Portuguese population aged 20 and over. Read more about this study

Who is it for?
Ages 20 years and olderHealthy volunteers can take part
Conditions the study is for
Chronic Obstructive Pulmonary Disease
What is being tested?
Spirometry
How many people
8,589 participants
Where
No sites listed yet
Study dates
1 Sep 2024to 31 Jul 2025
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 20 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: Portuguese population aged 20 years and over.

Who may be able to join

  • Male and female subjects aged 20 years and over, with permanent or temporary residence for at least one year in the national territory;
  • Written informed consent for study participation.

Who cannot join

  • Any condition that makes it impossible to perform spirometry, in accordance with standards of the joint American Thoracic Society/European Respiratory Society, and as described in the "Contraindications for spirometry testing" section of the Study Procedures Manual;
  • Any condition that makes it impossible to perform the bronchodilation, as described in the "Contraindications for bronchodilation" section of the Study Procedures Manual;
  • Severe cognitive disability that may interfere with the person's capability to participate in the study.

Trial locations and contacts

No sites are listed yet.

About this study

Official title: Prevalence of Chronic Obstructive Pulmonary Disease in the Portuguese Population- EpiCOPDpt Study

The EpiCOPDpt Study (Prevalence of Chronic Obstructive Pulmonary Disease in the Portuguese Population) primary objective is to estimate the prevalence of Chronic Obstructive Pulmonary Disease (COPD) in the Portuguese population aged 20 and over. It is a cross-sectional study of a representative sample of the Portuguese population aged 20 and over, using standardised post-bronchodilator spirometry. Questionnaires will be applied to collect sociodemographic, economic, clinical, and therapeutic data.

Being tested
Spirometry
Medical subject headings
Pulmonary Disease, Chronic Obstructive

What participants receive

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

  • SpirometryDiagnostic test

    Spirometry is a simple test used to diagnose and monitor lung diseases by measuring how much air a person can breathe out in one forced breath.

    After the baseline spirometry, and only if there is clear evidence of an airflow limitation/obstruction, i.e., if the FEV1/FVC (forced expiratory volume in the first second/forced vital capacity) ratio is less than 70% or less than the 5th percentile of the distribution of values measured in the reference population, a bronchodilator test will be performed using standardised post-bronchodilator spirometry (200 µg salbutamol), in order to identify persistent airflow limitation/obstruction.

What is being measured

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

  1. Individuals aged 20 years and over in the Portuguese population diagnosed with COPD(Chronic Obstructive Pulmonary Disease).

    Number and proportion of individuals aged 20 years and over in the Portuguese population diagnosed with COPD.

    Measured: Through study completion, an average of 10 months

Secondary outcomes (6)
  1. Individuals aged 20 years and over in the Portuguese population diagnosed with COPD (Chronic Obstructive Pulmonary Disease), by age group

    Number and proportion of individuals aged 20 years and over in the Portuguese population diagnosed with COPD among males and females, within specific age groups (≥20, 20-29, 30-39, 40-49, 50-59, 60-69, and ≥70).

    Measured: Through study completion, an average of 10 months

  2. Individuals aged >20 years in the Portuguese population diagnosed with COPD (Chronic Obstructive Pulmonary Disease) by sex

    Number and proportion of individuals aged 20 years and over in the Portuguese population diagnosed with COPD by sex: males and females.

    Measured: Through study completion, an average of 10 months

  3. Individuals diagnosed with COPD (Chronic Obstructive Pulmonary Disease) in each NUTS region

    Number and proportion of individuals diagnosed with COPD in each NUTS region (Norte, Centro, Lisboa e Vale do Tejo, Alentejo, Algarve, Açores, and Madeira).

    Measured: Through study completion, an average of 10 months

  4. Sociodemographic profile of respiratory patients

    A set of characteristics will be used to determine the sociodemographic profile: Sociodemographic characteristics:

    • Age
    • Sex
    • Race
    • Ethnicity
    • Marital status
    • Education level
    • Socioeconomic status (income and living conditions) Number and proportion in case of categorical data and means, std dev and percentiles in case of continuous variables.

    Measured: Through study completion, an average of 10 months

  5. Clinical profile of respiratory patients

    A set of characteristics will be used to determine the clinical profile:

    • Respiratory symptoms (such as cough, shortness of breath, and wheezing)
    • Comorbidities (Yes, which?/No)
    • Lung function tests (Spirometry will be carried out in accordance with the standard protocol of the joint ATS/ERS. The US Third National Health and Nutrition Examination Survey (NHANES III) values will be used as reference. Peripheral blood oxygen saturation (SpO2) will be assessed using a pulse oximeter)
    • Anthropometric data: Weight in kilograms and height in meters. Weight and height will be combined to report BMI in kg/m^2.

    Number and proportion in case of categorical data and means, std dev and percentiles in case of continuous variables.

    Measured: Through study completion, an average of 10 months

  6. Risk profile of participants

    Characterisation of risk factors, such as smoking history, occupational exposures, air pollution exposure, genetic predisposition, and history of respiratory infections. Number and proportion in case of categorical data and mean, median, standard deviation, and percentiles in case of continuous variables.

    Measured: Through study completion, an average of 10 months

Timeline

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

  1. First posted26 Jul 2024
  2. Study start1 Sep 2024 (estimated)
  3. Primary completion31 Jan 2025 (estimated)
  4. Study completion31 Jul 2025 (estimated)

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
Ecologic or community
Time perspective
Cross-sectional
Enrolment
8,589 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06523257
Sponsor's protocol ID
2023_EO_EPICOPDPT
Acronym
EpiCOPDpt
Status last verified
Jul 2024
First submitted
16 Jul 2024
Last updated
26 Jul 2024
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 Chronic Obstructive Pulmonary Disease, run by Sociedade Portuguesa de Pneumologia.

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 2 inclusion and 3 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: status not confirmed, as of the sponsor's last update on 26 Jul 2024. 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?

Results are not available in the source record.

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

Contact Ana Barros, PhD (+351915428072, ana.barros@sppneumologia.pt), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Individuals aged 20 years and over in the Portuguese population diagnosed with COPD(Chronic Obstructive Pulmonary Disease). (time frame: Through study completion, an average of 10 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 26 Jul 2024.

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