About this trial
There are over 700,000 UK hospital admissions every year with lung disease symptoms. Two of the most common lung diseases contributing to these numbers are asthma and chronic obstructive pulmonary disease (COPD). The immunopathology of these diseases is not fully understood. Matched samples from the respiratory tract and circulation will be used to identify immune patterns throughout the respiratory system to elucidate the immunopathology of airway disease.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
Participant is willing and able to give informed consent for participation in the study
Aged 18 years or above
Patient: known or suspected airway disease
Healthy volunteer: considered to be in good health with no significant comorbidity (immune disorder, cancer etc.)
Disqualifiers
Known or suspected current pulmonary tuberculosis, HIV (human immunodeficiency virus), Hepatitis B Virus, Hepatitis C Virus.
Surgery within the preceding 6 weeks
Participants who are pregnant
History of psychiatric, medical, or surgical disorders that in the opinion of the chief investigator may interfere with sample collection, undergo a bronchoscopy, or may compromise study completion or data collection
Trial population
The study will include patients diagnosed or with suspected COPD and asthma. The study will include both current and former smokers.
Trial design
Cohort
Prospective
Treatments tested in this trial
Not listed
Trial groups
Trial outcomes
Primary outcomes
Blood samples for presence of airway disease immune endotypes
Blood samples taken to assess inflammatory mediators to determine airway disease severity. Physiological and inflammatory characterisation of participants with known or suspected airway disease at stable state, compared to healthy volunteers with the aim to identify distinct immune endotypes in airways disease
Secondary outcomes
Blood samples for stability of airway disease immune endotypes
To assess the stability of blood inflammatory mediators to identify continuing airway disease endotypes. Longitudinal analysis of physiological and inflammatory characteristics in participants with known or suspected airway disease at stable state, compared to healthy volunteers over time.
Sponsors and contacts
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Guy's and St Thomas' NHS Foundation Trust
Lead sponsor
King's College London
Collaborator