NCT lookup

Pull any trial record directly from ClinicalTrials.gov.

Histoblood Group Antigens as a Risk Factor of Asthma

NCT00201266

CompletedN/A

Sponsor: University of California, San Francisco

Conditions: Asthma, Lung Diseases

Interventions: Screening

Countries: United States

This study will evaluate the link between blood group antigens and asthma exacerbations.

Eligibility overview

Sex: ALL

Age: 18 Years to 75 Years

Healthy volunteers: No

Study type: OBSERVATIONAL

Eligibility criteria

Inclusion Criteria:

* Diagnosis of asthma, as confirmed by methacholine responsiveness less than 8 mg/mL
* History of asthma exacerbation in the 2 years prior to study entry requiring treatment with oral corticosteroids

Exclusion Criteria:

* Cigarette smoking in the 10 years prior to study entry or total pack per year history greater than 10
* History of asthma exacerbations requiring treatment with oral corticosteroids since age 12 (control group)

Locations (1)

San Francisco, California, United States