Using Multiomics to Define Mechanisms of Rhinovirus-induced Chronic Obstructive Pulmonary Disease Exacerbations to Develop Novel Therapies and Therapeutic Targets

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Study Rationale: The investigators aim to understand the biological mechanisms that underlie exacerbations of Chronic Obstructive Pulmonary Disease (COPD) to drive the discovery of new treatments. COPD is the 4th leading cause of death worldwide, causing 3.5 million deaths in 2021. Acute exacerbations of COPD (AECOPD) involve sudden flare-ups of symptoms, commonly triggered by viral infections, and are the major cause of COPD morbidity, mortality and healthcare costs. Developing new treatments for AECOPD requires a better understanding of the processes occurring in the lungs, before and during exacerbations. Naturally-occurring AECOPD are challenging to study in a way that allows reliable measurement of disease mechanisms, and repeated lung sampling can be impractical and potentially dangerous. The investigators have therefore developed a human rhinovirus challenge experimental model of AECOPD. This involves infecting participants with a common cold virus called rhinovirus (RV). These studies have demonstrated that RV causes mild-to-moderate exacerbations in 95% of COPD subjects, that confounding factors can be controlled to take reliable measurements, and that repeated sampling of the lungs and respiratory tract can safely and easily be performed in a controlled research environment. The investigators will compare people who have COPD with people who do not have COPD, including smokers and non-smokers, to identify the processes important in COPD. Researchers will measure a range of clinical and scientific outcomes, using cutting-edge 'multiomics' techniques to understand mechanisms in RV-induced AECOPD to an extent that has not been achieved before. The crucial information that this study generates will be used to identify new treatments to reduce the frequency and severity of AECOPD. Data will be made publicly available for others to use and analyse, and will be integrated with other databases to maximise the scientific benefit that is gained from our participants' contribution to the project. End of Study: Follow up period of 42 days Study Centres: There will be 1 study centre: Imperial College Healthcare NHS Trust Study Intervention: All participants will be inoculated intra-nasally with rhinovirus-A16 Study Sample Size: 25 participants with mild/moderate COPD, 13 smoking controls, 12 non-smoking controls. Study procedures * Screening visit: lung function tests (FEV1, FVC and PEF), height and weight/BMI, Medical and surgical history, drug history, pregnancy test for females with childbearing potential, blood sample. * Baseline visit: Baseline questionnaires, initiation of daily diary card, blood tests (including for haematology, biochemistry and coagulation), vital signs, physical examination, nasosorption, nasal lavage, nasal and oropharyngeal swabs, sputum collection, chest x-ray, electrocardiogram, lung function tests (FEV1, FVC, PEF), FeNO, airway oscillometry and skin prick testing. * Baseline bronchoscopy: Bronchoscopy including bronchosorption, bronchioalveolar lavage, bronchial brushings and bronchial biopsies. * Visit Day 0: Viral inoculation visit: Vital signs, physical examination, lung function tests (FEV1, FVC, PEF), airway oscillometry, FeNO, nasosorption, nasal and oropharyngeal swabs, nasal lavage, blood sampling, sputum collection, urine collection and intranasal RV-A16 challenge * Visit Day 1: Vital signs, physical examination, lung function tests (FEV1, FVC, PEF), nasosorption, nasal and oropharyngeal swabs, nasal lavage, blood sampling, sputum collection, urine collection * Visit Day 2: Vital signs, physical examination, lung function tests (FEV1, FVC, PEF), nasosorption, nasal and oropharyngeal swabs, nasal lavage, urine collection. * Visit Day 3: Vital signs, physical examination, lung function tests (FEV1, FVC, PEF), airway oscillometry, FeNO, nasosorption, nasal and oropharyngeal swabs, nasal lavage, blood sampling, sputum collection, urine collection * Visit Day 4: Vital signs, physical examination, lung function tests (FEV1, FVC, PEF), nasosorption, nasal and oropharyngeal swabs, nasal lavage, urine collection. * Visit Day 5: Vital signs, physical examination, lung function tests (FEV1, FVC, PEF), airway oscillometry, FeNO, nasosorption, nasal and oropharyngeal swabs, nasal lavage, blood sampling, sputum collection, urine collection * Visit Day 7 and Bronchoscopy: Vital signs, physical examination, lung function tests (FEV1, FVC, PEF), airway oscillometry, FeNO, nasosorption, nasal and oropharyngeal swabs, nasal lavage, blood sampling, urine collection and bronchoscopy including bronchosorption, bronchioalveolar lavage, bronchial brushings and bronchial biopsies * Visit Day 9: Vital signs, physical examination, lung function tests (FEV1, FVC, PEF), airway oscillometry, FeNO, nasosorption, nasal and oropharyngeal swabs, nasal lavage, blood sampling, sputum collection, urine collection. * Visit Day 12: Vital signs, physical examination, lung function tests (FEV1, FVC, PEF), airway oscillometry, FeNO, nasosorption, nasal and oropharyngeal swabs, nasal lavage, blood sampling, sputum collection, urine collection. * Visit Day 15: Vital signs, physical examination, lung function tests (FEV1, FVC, PEF), airway oscillometry, FeNO, nasosorption, nasal and oropharyngeal swabs, nasal lavage, blood sampling, sputum collection, urine collection. * Visit Day 21: Vital signs, physical examination, lung function tests (FEV1, FVC, PEF), airway oscillometry, FeNO, nasosorption, nasal and oropharyngeal swabs, nasal lavage, blood sampling, sputum collection. * Visit Day 42: Vital signs, physical examination, lung function tests (FEV1, FVC, PEF), airway oscillometry, FeNO, nasosorption, nasal and oropharyngeal swabs, nasal lavage, blood sampling, sputum collection. On completion of this visit the participant will have finished the study and will no longer be enrolled.