Improving asthma symptoms in children through air quality interventions
Official title: Action Towards Health Equity and Improved Air Quality in the Duwamish Valley: A Multilevel Asthma Intervention
Run by University of Washington · NCT06552013 · Data updated 2026-11-12
This study is testing if using box fans with special filters can help kids with asthma feel better by improving the air quality in their homes.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 6 Years to 17 Years |
| Sex | All |
| Enrollment | 80 (estimated) |
| Sponsor | University of Washington Academic / other |
| Locations | 1 site (Seattle, Washington) |
| Status | Recruiting |
| Started | July 30, 2024 |
| Main results expected | July 2028 |
| Study ends | July 2028 |
| Registry record updated | August 13, 2024 |
| Trial ID | NCT06552013 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are children aged 6 to 17 years with poorly controlled asthma living in the Georgetown and South Park neighborhoods of Seattle.
✕Probably not a fit
Children with unstable housing or shared custody arrangements may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This randomized control trial aims to determine if using box fans with high-quality filters can reduce asthma symptoms and enhance indoor air quality for children aged 6 to 17 years living in the Duwamish Valley of Seattle. Participants will be divided into two groups: one using fans with MERV 13 filters and the other with sham filters. The study will assess changes in asthma symptoms and lung function, measured by forced expiratory volume (FEV1), alongside monitoring indoor air quality. Participants will complete questionnaires, use peak flow meters, and run the box fans in their homes to gather data on the intervention's effectiveness.
Why it matters
Potential benefit: If successful, this intervention could significantly reduce asthma symptoms and improve the quality of life for children suffering from asthma.
How similar studies have gone: Other studies have shown that improving indoor air quality can positively impact asthma symptoms, suggesting this approach may be effective.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * age (6-17 years) * poorly controlled physician diagnosed asthma defined as more than four days with asthma symptoms in the past two weeks, use of asthma rescue medication for more than four days in the past two weeks, or health care utilization due to asthma in the past year (hospitalization, emergency room visit, or unscheduled clinic visit) * living in Georgetown and South Park neighborhoods of Seattle Exclusion Criteria: * children with unstable housing or shared custody arrangements
Where it's running
-
Duwamish River Community Coaltion
Seattle, Washington, United States Recruiting
Study contacts
- Principal investigator: Anjum Hajat, PhD, MPH — University of Washington
- Study coordinator: Anjum Hajat, PhD, MPH
- Email: anjumh@uw.edu
- Phone: 206-685-3618
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.