Status:

COMPLETED

Osteoprotegerin (OPG) in Induced Chronic Obstructive Pulmonary Disease (COPD) Sputum

Lead Sponsor:

Imperial College London

Conditions:

Pulmonary Disease, Chronic Obstructive

Eligibility:

All Genders

35+ years

Brief Summary

Evaluation of OPG level as disease markers has also been reported. It has been showed that patients with coronary artery disease had higher serum OPG levels than healthy volunteers. Moreover, serum OP...

Detailed Description

Osteoprotegerin (OPG) is a secreted glycoprotein containing 401 amino acids. It is a member of the tumour necrosis factor (TNF) receptor superfamily. It was firstly discovered as a protein regulating ...

Eligibility Criteria

Inclusion

  • Healthy non-smokers
  • Age \<35 years (younger group)
  • Aged matched to COPD patients (older group)
  • Normal spirometry
  • Subjects are able to give informed consent
  • Healthy smokers
  • Age \<35 years (younger group)
  • Aged matched to COPD patients (older group)
  • Normal spirometry
  • Subjects are able to give informed consent Stable COPD patients: Stage I-IV according to the GOLD guidelines (3), (9)
  • Current and/or ex-smokers with no less than 10 pack-year smoking history
  • The subjects are able to give informed consent COPD patients with acute exacerbation: Stage I-IV according to the GOLD guidelines (3), (9)
  • Exacerbation of COPD defined as "an event in the natural course of the disease characterised by a change in the patient's baseline dyspnoea, cough and/or sputum beyond day to day variability sufficient to warrant a change in management" (9)
  • Current and/or ex-smokers with no less than 10 pack-year smoking history
  • The subjects are able to give informed consent Asthma patients
  • Patients diagnosed with asthma
  • The subjects are able to give informed consent Bronchiectasis patients
  • Patients with CT-confirmed bronchiectasis
  • The subjects are able to give informed consent Cystic fibrosis patients
  • Patients diagnosed with cystic fibrosis
  • The subjects are able to give informed consent

Exclusion

  • Healthy non-smokers and smokers
  • Upper respiratory infection within the last 4 weeks.
  • Subjects who have received research medication within the previous one month.
  • Subjects unable to give informed consent.
  • Any psychiatric condition rendering the patient unable to understand the nature, scope and possible consequences of the study Stable COPD patients
  • Patients who have had an exacerbation which required treatment with oral steroids during the last 2 months prior to the visit
  • Upper respiratory infection within the last 4 weeks
  • Subjects who have received research medication within the previous one month
  • Subjects unable to give informed consent
  • Any psychiatric condition rendering the patient unable to understand the nature, scope and possible consequences of the study COPD patients with acute exacerbation
  • Subjects who have received research medication within the previous one month
  • Subjects unable to give informed consent
  • Any psychiatric condition rendering the patient unable to understand the nature, scope and possible consequences of the study Asthma
  • Upper respiratory infection within the last 4 weeks
  • Subjects who have received research medication within the previous one month
  • Subjects unable to give informed consent.
  • Any psychiatric condition rendering the patient unable to understand the nature, scope and possible consequences of the study.
  • Bronchiectasis and cystic fibrosis
  • Subjects who have received research medication within the previous one month.
  • Subjects unable to give informed consent.
  • Any psychiatric condition rendering the patient unable to understand the nature, scope and possible consequences of the study.

Key Trial Info

Start Date :

January 1 2008

Trial Type :

OBSERVATIONAL

Allocation :

ACTUAL

End Date :

March 1 2010

Estimated Enrollment :

72 Patients enrolled

Trial Details

Trial ID

NCT00655954

Start Date

January 1 2008

End Date

March 1 2010

Last Update

July 10 2019

Active Locations (1)

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National Heart and Lung Institute

London, United Kingdom, SW3 6LY