About this trial
The London COPD exacerbation (EXCEL) cohort builds on an established cohort started in 1995 and designed to study COPD exacerbations and their impact on health-status and disease progression.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Forced Expiratory Volume in 1 sec (FEV1)/Forced Vital Capacity (FVC) ratio of <0.70
Able and willing to give informed and written consent
Disqualifiers
Patients with a history of asthma, bronchiectasis, carcinoma of the bronchus, or other significant respiratory disease were excluded.
Patients on Immunosuppressive medications or with active cancer
Long term steroid therapy
Age <40 years at recruitment
Trial population
Patients with COPD who are generally seen in outpatient clinic.
Trial design
Cohort
Prospective
Treatments tested in this trial
Not listed
Trial groups
Trial outcomes
Primary outcomes
Annual exacerbation rate (number of exacerbations over a 12 month period)
Definition of an exacerbation * The presence of 2 new symptoms (one of which must be major) for 2 consecutive days * Major symptoms: increased breathlessness (A), increased sputum colour (B1) or increased sputum amount (B2) * Minor symptoms: a cold (C), increased wheeze or chest tightness (D), Sore throat (E1), Increased cough (E2), Fever (F)
Sponsors and contacts
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