Recruitment

Recruitment Status
Not yet recruiting
Estimated Enrollment
Same as current

Summary

Conditions
  • Asthma
  • Mucus; Plug, Tracheobronchial
Type
Observational
Design
Observational Model: CohortTime Perspective: Cross-Sectional

Participation Requirements

Age
Between 18 years and 70 years
Gender
Both males and females

Description

This is a single center study of 60 subjects. The investigators will enroll 30 subjects with asthma who demonstrate mucus plugging on a screening CT lung scan, 15 subjects with asthma without mucus plugging, and 15 healthy controls. The healthy controls and subjects with asthma but without mucus plu...

This is a single center study of 60 subjects. The investigators will enroll 30 subjects with asthma who demonstrate mucus plugging on a screening CT lung scan, 15 subjects with asthma without mucus plugging, and 15 healthy controls. The healthy controls and subjects with asthma but without mucus plugging with also undergo CT scans to confirm that their lungs aren't obstructed by mucus. Screening data will be reviewed to determine participant eligibility. Participants who meet all inclusion criteria will participate in image-guided bronchoscopy ("virtual navigation bronchoscopy" [VNB]) to sample airway biospecimens in mucus plugged and control airways. Subjects will participate in up to 5 study visits at the Airway Clinical Research Center.

Tracking Information

NCT #
NCT04514913
Collaborators
  • National Institutes of Health (NIH)
  • National Heart, Lung, and Blood Institute (NHLBI)
Investigators
Principal Investigator: John Fahy, MD, MSc University of California, San Francisco