The purpose of this research is to evaluate the methacholine challenge test as an accurate
indicator of asthma in patients receiving treatment for asthma. Phase 1 on the study compares
methacholine challenge test results from asthma patients to those from people who do not have
asthma. In phase 2, test results for people with asthma on low dose inhaled corticosteroid
will be compared to results on high dose inhaled corticosteroids. Both males and females with
stable asthma (asthma participants) and without asthma (controls) enrolled. Participants will
be between 12 and 69 years of age.
Phase:
Phase 4
Details
Lead Sponsor:
Johns Hopkins Bloomberg School of Public Health
Collaborators:
Baylor College of Medicine Duke University Indiana University Long Island Jewish Medical Center Louisiana State University Health Sciences Center in New Orleans National Jewish Health Nemours Children's Clinic New York University School of Medicine North Shore University Hospital Northwestern University NYU Langone Health Ohio State University St. Louis University University of California, San Diego University of Florida University of Miami University of Missouri-Columbia University of South Florida University of Vermont Washington University School of Medicine