Ignite Creation Date:
2025-12-24 @ 3:15 PM
Ignite Modification Date:
2025-12-27 @ 12:22 AM
Study NCT ID:
NCT00043992
Status:
COMPLETED
Last Update Posted:
2006-09-04
First Post:
2002-08-16
Is NOT Gene Therapy:
True
Has Adverse Events:
False
Brief Title:
Outdoor Allergen Exposure, Sensitivity, and Acute Asthma
Sponsor:
National Institute of Environmental Health Sciences (NIEHS)
Organization:
Study Overview
Official Title:
None
Status:
COMPLETED
Status Verified Date:
2006-09
Last Known Status:
None
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
None
Brief Summary:
To examine the role of outdoor pollen grains and fungal spores in the exacerbation of asthma and to produce forecasting models to predict days of high concentration.
Detailed Description:
Asthma is a growing problem, and outdoor allergens play a role in exacerbation of many cases. A clearer understanding of this role and its magnitude, and a means of controlling the effects of outdoor allergen exposures is needed. We propose Poisson time-series and conditional panel studies to test these hypotheses: 1) The incidence of acute asthma attacks, as measured by urgent care inhalation treatments and hospitalizations for asthma, has a dose-dependent relationship with exposure to specific outdoor allergens; 2) Specific sensitization to outdoor allergens is a risk factor for having an acute attack; and 3) Exposure conditions that lead to acute asthma attacks can be forecast, creating an opportunity to reduce asthma morbidity and mortality ny targeting pretreatment and/or exposure controls.
Study Oversight
Has Oversight DMC:
Is a FDA Regulated Drug?:
Is a FDA Regulated Device?:
Is an Unapproved Device?:
Is a PPSD?:
Is a US Export?:
Is an FDA AA801 Violation?: