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Outdoor Allergen Exposure, Sensitivity, and Acute Asthma

National Institutes of Health (NIH) logo

National Institutes of Health (NIH)

Status

Completed

Conditions

Asthma

Study type

Observational

Funder types

NIH

Identifiers

NCT00043992
9744-CP-001

Details and patient eligibility

About

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.

Full 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.

Sex

All

Ages

15 to 50 years old

Volunteers

No Healthy Volunteers

Inclusion and exclusion criteria

Must be a member of the Fallon HMO and be treated for acute asthma exacerbation.

Trial contacts and locations

1

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Data sourced from clinicaltrials.gov

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