NCT04716023

Physiology and Structure of the Small Airways in Patients With Chronic Airflow Obstruction or COVID-19

• Status: Unknown
• Phase: —
• Study type: Observational
• Enrollment: 42 (estimated)
• Sponsor: Imperial College London · Academic / Other
• Sex: All
• Age: 16 Years
• Healthy volunteers: Not accepted

Summary

The purpose of this research project is to study small airways physiological function in patients with chronic obstructive lung disease or COVID-19 and explore the relationship with in-vivo microanatomical small airway structure as measured by OCT. Correlating endobronchial assessment with multiple breath nitrogen washout and impulse oscillometry will allow the characterisation of the relationship between small airway structural findings and these validated investigations. A small volume lung wash, endobronchial brushings and the collection of a limited number of endobronchial cryobiopsy samples will be performed to better understand the endobronchial environment of the small airways through inflammatory studies. Following the completion of any such work, residual samples will be stored in a "bio-bank" to enable the completion of future work. Understanding the relationship with symptom-based quality of life scoring questionnaires and a functional assessment of exercise capacity will help elucidate the clinical impact of in-vivo small airways findings.

Conditions

• Copd
• COVID-19
• Asthma
• Small Airways Disease

Timeline

• Start date: 2019-08-23
• Primary completion: 2021-08-22
• Completion: 2022-02-02
• First posted: 2021-01-20
• Last updated: 2021-01-20

Locations

1 site across 1 country: United Kingdom