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The Airports, Air Quality, and Asthma (AAA) Study

RecruitingNAAges 6 Years - 12 YearsAllUniversity of Washington
NCT07047430 on ClinicalTrials.gov ↗
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In plain words

What the trial is, and whether it could suit you

For children with asthma, exposure to indoor air pollution increases the risk of a serious asthma exacerbation, which can be life-threatening. Interventions aimed at improving indoor air quality, including use of a portable air cleaner with a high-efficiency particulate air (HEPA) filter, can reduce this risk, but the effectiveness, feasibility and acceptability of HEPA air cleaners varies by setting. In collaboration with a community health worker (CHW) delivered asthma education program, the investigators are conducting a randomized clinical trial to evaluate the effectiveness of HEPA air cleaners to improve indoor air quality and child asthma health in South King County of Washington state, a vulnerable community impacted by air pollution from airports and highway traffic. Key features of the Airports, Air Quality and Asthma (AAA) design include integration of CHWs into study procedur

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📋 Eligibility rules (as published)
Inclusion Criteria: * Child is 6-12 years old with a health care provider-diagnosed asthma. * Caregiver is comfortable in participating in all study activities in English (communicating with study staff by phone and completing online surveys). * Caregiver is familiar with the child's daily asthma health. * Residence within 10 miles of Seattle-Tacoma International Airport as determined by zip code * Child resides in caregiver's home at least five nights a week on a regular basis and has no plans to move in the next three months. Exclusion Criteria: * Child has severe asthma at baseline. Severe asthma was defined in consultation with pediatric pulmonologists to be caregiver-reported asthma symptoms every day over the past 14 days and/or two or more inpatient hospitalizations for asthma in the past 12 months. * Households were excluded if there were multiple individuals within the same household with asthma eligible for the King County CHW Asthma Program or had severe asthma.
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What it tests

  • Portable air cleaner with HEPA filter
  • Less effective portable air cleaner (no HEPA)
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Where

1 site
University of Washington
Seattle, United States
🤝 Taking part is your choice, and you can leave at any time. Only the trial team can confirm you are eligible — always decide together with your own doctor.
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