Prospective Dynamic Cohort Study of Phenotypic Profiles in Patients With Chronic Obstructive Pulmonary Disease (COPD-BPCO 2)

June 2, 2026 updated by: Initiatives Bronchopneumopathie Chronique Obstructive (BPCO)

Prospective Multicenter Dynamic Cohort Study to Evaluate Phenotypic Profiles of Subjects With Chronic Obstructive Pulmonary Disease (COPD-BPCO 2 Study)

This prospective, multicenter, real-world observational cohort study will describe phenotypic profiles, patient characteristics, and treatments in adults with stable chronic obstructive pulmonary disease (COPD). The profiles observed in the current cohort will be compared with those of patients recruited between 2005 and 2018 in the previous COPD-BPCO 1 cohort. Patients will be followed for at least 3 years as part of routine care, with no study-specific visit or treatment.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

COPD is a heterogeneous disease, and patient characteristics may be associated with prognosis and treatment response. The previous Initiative BPCO cohort recruited 1,720 subjects between 2005 and 2018 and identified clinically relevant COPD phenotypes, including subgroups associated with mortality risk. Because diagnostic strategies, risk factors, comorbidity management, and COPD treatments have evolved, this new prospective dynamic cohort will assess whether current COPD phenotypes differ from those previously identified and whether classification and regression tree (CART) algorithms developed in the previous cohort remain applicable. Data will be collected during routine care from hospital pulmonology centers in France. Baseline and follow-up data may include demographics, risk factors, comorbidities, usual treatments, patient-reported questionnaires, pulmonary function, arterial blood gases, 6-minute walk test, imaging, biology results, exacerbations, and mortality status.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
500

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

  • Name: José GARCIA-MACE

Study Locations

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

Adult patients with stable COPD followed in French hospital pulmonology centers.

Description

Inclusion Criteria:

Age 18 years or older.

  • Stable COPD, defined as no exacerbation requiring treatment during the previous 4 weeks.
  • Confirmed COPD diagnosis based on post-bronchodilator FEV1/FVC < 70%

Exclusion Criteria:

  • Main diagnosis of bronchiectasis, asthma, or any other significant respiratory disease.
  • Patients under legal protection.
  • Pregnant women.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Patients with stable COPD
Adults with stable COPD confirmed by post-bronchodilator FEV1/FVC < 70%, recruited during routine pulmonology care
Other: Routine care / no study-specific intervention
Patients will be managed according to usual care at the investigator's discretion. The study does not assign any treatment, medicinal product, or medical device.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Identification and description of COPD phenotypic profiles
Time Frame: Baseline and up to 3 years
COPD phenotypic subgroups will be defined using unsupervised clustering and described according to patient characteristics, treatments, pulmonary function, symptoms, exacerbations, clinically important deterioration, and mortality
Baseline and up to 3 years

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Comparison of phenotypic profiles with the previous COPD-BPCO 1 cohort
Time Frame: Current profiles will be compared with those observed in the previous cohort recruited between 2005 and 2018.
Baseline and up to 3 years
Current profiles will be compared with those observed in the previous cohort recruited between 2005 and 2018.
Prognosis of current patients compared with the previous cohort
Time Frame: 3 years
Prognosis will be explored using mortality at 3 years, exacerbations, pulmonary function, dyspnea, health status, treatment modifications, and clinically important deterioration
3 years
Applicability of previously developed CART algorithms
Time Frame: Through study completion, an average of 3 years
Classification and regression tree algorithms developed from COPD-BPCO 1 will be applied to the new cohort and, if needed, new classification trees will be developed.
Through study completion, an average of 3 years
Adverse events
Time Frame: Through study completion, an average of 3 years
Number and detailed description of adverse events collected as part of the study, although no adverse event related to the study itself is expected.
Through study completion, an average of 3 years

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Initiatives Bronchopneumopathie Chronique Obstructive (BPCO)

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Clin-Experts

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Nicolas ROCHE, Hôpital Cochin

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
May 1, 2026

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 31, 2029

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 31, 2029

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
May 20, 2026

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
June 2, 2026

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
June 4, 2026

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
June 4, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
June 2, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
May 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 2024-A00438-39 / COPD-BPCO 2

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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