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

Recruiting

Conditions

Intervention / Treatment

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

Observational

Enrollment (Estimated)

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 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

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
Intervention / Treatment
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

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

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

Initiatives Bronchopneumopathie Chronique Obstructive (BPCO)

Collaborators

Clin-Experts

Investigators

  • Principal Investigator: Nicolas ROCHE, Hopital 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)

May 1, 2026

Primary Completion (Estimated)

December 31, 2029

Study Completion (Estimated)

December 31, 2029

Study Registration Dates

First Submitted

May 20, 2026

First Submitted That Met QC Criteria

June 2, 2026

First Posted (Actual)

June 4, 2026

Study Record Updates

Last Update Posted (Actual)

June 4, 2026

Last Update Submitted That Met QC Criteria

June 2, 2026

Last Verified

May 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID 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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