Brief Summary

Abstract Chronic obstructive pulmonary disease (COPD) is the fourth leading cause of death in Canada. COPD is not just a disease of men, nor is it solely a disease in old age. Women have been underrepresented and early disease has not been studied. Underdiagnosis of COPD remains a significant problem, and it may indicate an unmet healthcare need. This can potentially results not only in a patient been misinformed, but can lead to incorrect management. Epidemiological research is needed to develop a framework to combat this major health problem, by better characterization of the population of men and women at risk and patients with early disease, by better understanding which factors modifiable through health interventions are related to health perception (health-related quality of life) and disease evolution. This will be possible through a nationwide study, the Canadian Cohort Obstructive Lung disease (CanCOLD), a prospective longitudinal study. The CanCOLD study is built on the current ongoing prevalence nationwide study, the Canadian Obstructive Lung disease "COLD" study. The CanCOLD will be the first study to assess prevalence of disease across Canada and its consequence in men and women, and to evaluate a conceptual model of disease severity based on patient's health perception (health-related quality of life). Ultimately, this project will extend to a longitudinal follow up (3 years or beyond) and will allow to have a better understanding of the lifestyle risk factors, not only smoking but also diet, physical activity, and co morbid conditions. This will be a great asset to shift from management of a single risk factor (tobacco control) to total COPD risk management. The results of the study will greatly help to assist decision makers in developing policies to improve the diagnosis, the management of COPD and to optimize health care services use.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
1,500

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Jan 2010

Longer than P75 for all trials

Geographic Reach
1 country

9 active sites

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

June 12, 2009

Completed
3 days until next milestone

First Posted

Study publicly available on registry

June 15, 2009

Completed
7 months until next milestone

Study Start

First participant enrolled

January 1, 2010

Completed
12.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2022

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2022

Completed
Last Updated

August 27, 2018

Status Verified

August 1, 2018

Enrollment Period

12.9 years

First QC Date

June 12, 2009

Last Update Submit

August 23, 2018

Conditions

Keywords

Chronic obstructive pulmonary diseaseCOPDCohort studyprospective longitudinal studytissue bank

Outcome Measures

Primary Outcomes (1)

  • What risk factors other than smoking determine the development and progression of COPD.

    One visit a year every 18 months

Secondary Outcomes (2)

  • What are the combinations of the disease and patient attributes that differentiate individuals (men/women) with COPD as they relate to relevant outcomes (symptoms, exacerbations, disease progression or death)

    One visit a year 18 months

  • Is early detection of COPD with spirometry meaningful according to sex and ageing.

    One visit a year 18 months

Study Arms (4)

Group 1

COPD moderate-severe(GOLD2-4)(post-BD FEV1/FVC\<0.70 and FEV1\<80% of pred.)

Group 2

COPD mild (GOLD1)(post-BD FEV1/FVC\<0.70 AND FEV1\>=80% of pred.)

Group 3

COPD at risk (ever smoker with post-BD FEV1/FVC\>=0.70)

Group 4

"Healthy control" never smokers without respiratory disease (post-BD FEV1/FVC\>=0.70.

Eligibility Criteria

Age40 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Subjects' selection and participation in CanCOLD- longitudinal cohort: Subjects will be recruited from the study site participants (total from cross-sectional ≈5,000 subjects, men and women).

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (9)

Health Sciences Centre

Calgary, Alberta, T2N 4N1, Canada

Location

St-Paul's Hospital

Vancouver, British Columbia, V6Z 1Y6, Canada

Location

Halifax Infirmary

Halifax, Nova Scotia, B3H 3A7, Canada

Location

Kingston General Hospital

Kingston, Ontario, K7L 2V6, Canada

Location

Ottawa Hospital General

Ottawa, Ontario, K1H 8L6, Canada

Location

University of Toronto

Toronto, Ontario, M5T 2S8, Canada

Location

Montreal Chest Institute

Montreal, Quebec, H2X 2P4, Canada

Location

Royal University Hospital

Saskatoon, Saskatchewan, S7N 0W8, Canada

Location

Institut universitaire de cardiologie et de pneumologie de Québec

Québec, G1V 4G5, Canada

Location

Related Publications (14)

  • Cordero AIH, Li X, Yang CX, Ambalavanan A, MacIsaac JL, Kobor MS, Doiron D, Tan W, Bourbeau J, Sin DD, Duan Q, Leung JM; CanCOLD Collaborative Research Group. Cannabis smoking is associated with persistent epigenome-wide disruptions despite smoking cessation. BMC Pulm Med. 2025 Apr 9;25(1):168. doi: 10.1186/s12890-025-03634-9.

  • Ekstrom M, Lewthwaite H, Li PZ, Bourbeau J, Tan WC, Jensen D; CanCOLD Collaborative Research Group. Identifying Abnormal Exertional Breathlessness in COPD: Comparing Modified Medical Research Council and COPD Assessment Test With Cardiopulmonary Exercise Testing. Chest. 2025 Mar;167(3):697-711. doi: 10.1016/j.chest.2024.10.027. Epub 2024 Oct 28.

  • Virdee S, Tan WC, Hogg JC, Bourbeau J, Hague CJ, Kirby M; CanCOLD Collaborative Research Group. CT Chest Imaging Using Normalized Join-Count: Predicting Emphysema Progression in the CanCOLD Study. Radiology. 2024 Jul;312(1):e233265. doi: 10.1148/radiol.233265.

  • Phillips DB, James MD, Vincent SG, Elbehairy AF, Neder JA, Kirby M, Ora J, Day AG, Tan WC, Bourbeau J, O'Donnell DE; CanCOLD Collaborative Research Group and the Canadian Respiratory Research Network. Physiological Characterization of Preserved Ratio Impaired Spirometry in the CanCOLD Study: Implications for Exertional Dyspnea and Exercise Intolerance. Am J Respir Crit Care Med. 2024 Jun 1;209(11):1314-1327. doi: 10.1164/rccm.202307-1184OC.

  • Abozid H, Kirby M, Nasir N, Hartl S, Breyer-Kohansal R, Breyer MK, Burghuber OC, Bourbeau J, Wouters EFM, Tan W; CanCOLD Collaborative research Group and the Canadian Respiratory Research Network. CT airway remodelling and chronic cough. BMJ Open Respir Res. 2023 May;10(1):e001462. doi: 10.1136/bmjresp-2022-001462.

  • Ross BA, Doiron D, Benedetti A, Aaron SD, Chapman K, Hernandez P, Maltais F, Marciniuk D, O'Donnell DE, Sin DD, Walker BL, Tan W, Bourbeau J; CanCOLD Collaborative Research Group and the Canadian Respiratory Research Network. Short-term air pollution exposure and exacerbation events in mild to moderate COPD: a case-crossover study within the CanCOLD cohort. Thorax. 2023 Oct;78(10):974-982. doi: 10.1136/thorax-2022-219619. Epub 2023 May 5.

  • Krishnan S, Tan WC, Farias R, Aaron SD, Benedetti A, Chapman KR, Hernandez P, Maltais F, Marciniuk DD, O'Donnell DE, Sin DD, Walker B, Bourbeau J; Canadian Cohort Obstructive Lung Disease Collaborative Research Group and the Canadian Respiratory Research Network. Impaired Spirometry and COPD Increase the Risk of Cardiovascular Disease: A Canadian Cohort Study. Chest. 2023 Sep;164(3):637-649. doi: 10.1016/j.chest.2023.02.045. Epub 2023 Mar 4.

  • Moslemi A, Makimoto K, Tan WC, Bourbeau J, Hogg JC, Coxson HO, Kirby M; Canadian Cohort of Obstructive Lung Disease. Quantitative CT Lung Imaging and Machine Learning Improves Prediction of Emergency Room Visits and Hospitalizations in COPD. Acad Radiol. 2023 Apr;30(4):707-716. doi: 10.1016/j.acra.2022.05.009. Epub 2022 Jun 8.

  • Phillips DB, Elbehairy AF, James MD, Vincent SG, Milne KM, de-Torres JP, Neder JA, Kirby M, Jensen D, Stickland MK, Guenette JA, Smith BM, Aaron SD, Tan WC, Bourbeau J, O'Donnell DE; CanCOLD Collaborative Research Group and the Canadian Respiratory Research Network. Impaired Ventilatory Efficiency, Dyspnea, and Exercise Intolerance in Chronic Obstructive Pulmonary Disease: Results from the CanCOLD Study. Am J Respir Crit Care Med. 2022 Jun 15;205(12):1391-1402. doi: 10.1164/rccm.202109-2171OC.

  • Tan WC, Bourbeau J, Nadeau G, Wang W, Barnes N, Landis SH, Kirby M, Hogg JC, Sin DD; CanCOLD Collaborative Research Group; authors would also like to thank the men and women who participated in the study and individuals in the CanCOLD Collaborative Research Group not listed as authors:. High eosinophil counts predict decline in FEV1: results from the CanCOLD study. Eur Respir J. 2021 May 27;57(5):2000838. doi: 10.1183/13993003.00838-2020. Print 2021 May.

  • Lewthwaite H, Elsewify O, Niro F, Bourbeau J, Guenette JA, Maltais F, Marciniuk DD, O'Donnell DE, Smith BM, Stickland MK, Tan WC, Jensen D; CanCOLD Collaborative Research Group; Canadian Respiratory Research Network. Normative Cardiopulmonary Exercise Test Responses at the Ventilatory Threshold in Canadian Adults 40 to 80 Years of Age. Chest. 2021 May;159(5):1922-1933. doi: 10.1016/j.chest.2020.11.009. Epub 2020 Nov 18.

  • Barrecheguren M, Pinto L, Mostafavi-Pour-Manshadi SM, Tan WC, Li PZ, Aaron SD, Benedetti A, Chapman KR, Walker B, Fitzgerald JM, Hernandez P, Maltais F, Marciniuk DD, O'Donnell DE, Sin DD, Bourbeau J; CanCOLD Collaborative Research Group and the Canadian Respiratory Research Network. Identification and definition of asthma-COPD overlap: The CanCOLD study. Respirology. 2020 Aug;25(8):836-849. doi: 10.1111/resp.13780. Epub 2020 Feb 16.

  • Gupta N, Pinto L, Benedetti A, Li PZ, Tan WC, Aaron SD, Chapman KR, FitzGerald JM, Hernandez P, Marciniuk DD, Maltais F, O'Donnell DE, Sin D, Walker BL, Bourbeau J; Canadian Respiratory Research Network and the CanCOLD Collaborative Research Group. The COPD Assessment Test: Can It Discriminate Across COPD Subpopulations? Chest. 2016 Nov;150(5):1069-1079. doi: 10.1016/j.chest.2016.06.016. Epub 2016 Jun 27.

  • Tan WC, Sin DD, Bourbeau J, Hernandez P, Chapman KR, Cowie R, FitzGerald JM, Marciniuk DD, Maltais F, Buist AS, Road J, Hogg JC, Kirby M, Coxson H, Hague C, Leipsic J, O'Donnell DE, Aaron SD; CanCOLD Collaborative Research Group. Characteristics of COPD in never-smokers and ever-smokers in the general population: results from the CanCOLD study. Thorax. 2015 Sep;70(9):822-9. doi: 10.1136/thoraxjnl-2015-206938. Epub 2015 Jun 5.

Biospecimen

Retention: SAMPLES WITH DNA

Blood sampling * Biomarkers:IL-6, CRP, CC-16, SP-D" * DNA for genetics, epigenetic and RNA for transcriptomics * Markers for cardiovascular diseases: LDL, LDL and HDL sizes, Apo B, Apo A1, CRP, IL6, TNF alpha, Adiponectine, Leptine, Glucose and Insulin.

MeSH Terms

Conditions

Pulmonary Disease, Chronic Obstructive

Condition Hierarchy (Ancestors)

Lung Diseases, ObstructiveLung DiseasesRespiratory Tract DiseasesChronic DiseaseDisease AttributesPathologic ProcessesPathological Conditions, Signs and Symptoms

Study Officials

  • Jean Bourbeau, M.D., M.Sc.

    McGill University Health Centre/Research Institute of the McGill University Health Centre

    PRINCIPAL INVESTIGATOR
  • Wan Tan, M.D.

    CAAA University of British Columbia

    PRINCIPAL INVESTIGATOR
  • François Maltais, M.D.

    CFBA Université Laval

    PRINCIPAL INVESTIGATOR
  • Shawn Aaron, M.D., M.Sc.

    OHGC Ottawa Hospital General Campus

    PRINCIPAL INVESTIGATOR
  • Denis O'Donnell, M.D.

    CEDA Queen's University (Kinsgston)

    PRINCIPAL INVESTIGATOR
  • Darcy D Marciniuk, M.D.

    CCAA University of Saskatchewan

    PRINCIPAL INVESTIGATOR
  • Robert Cowie, M.D.

    CBBA University of Calgary

    PRINCIPAL INVESTIGATOR
  • Kenneth R. Chapman, M.D., M.Sc.

    CEAA University of Toronto

    PRINCIPAL INVESTIGATOR
  • Paul Hernandez, M.D.

    CHAA Dalhousie University (Nova Scotia)

    PRINCIPAL INVESTIGATOR
  • Mark J. FitzGerald, M.D.

    CAAA University of British Columbia

    PRINCIPAL INVESTIGATOR
  • Donald Sin, M.D.

    CAAA University of British Columbia

    PRINCIPAL INVESTIGATOR
  • Andrea Benedetti, Ph.D.

    INUD McGill University Healty Center

    PRINCIPAL INVESTIGATOR
  • Yves Lacasse, M.D., M.Sc.

    CPVR Institut universitaire de cardiologie et de pneumologie de Québec

    PRINCIPAL INVESTIGATOR
  • Pierre Ernst, M.D.

    McGill University

    PRINCIPAL INVESTIGATOR
  • Harvey Coxson, M.D.

    University of British Columbia

    PRINCIPAL INVESTIGATOR
  • Roger Goldstein, M.D.

    CEAA University of Toronto

    PRINCIPAL INVESTIGATOR
  • Carlo Marra, Ph.D.

    CAAA University of British Columbia

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
MD, M.Sc.

Study Record Dates

First Submitted

June 12, 2009

First Posted

June 15, 2009

Study Start

January 1, 2010

Primary Completion

December 1, 2022

Study Completion

December 1, 2022

Last Updated

August 27, 2018

Record last verified: 2018-08

Data Sharing

IPD Sharing
Will share

publications; data sharing through substudies submission

Locations