Air purifiers may give overweight kids with asthma extra relief
NCT ID NCT02763917
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at whether being overweight makes children with asthma more sensitive to air pollution. About 200 children from Baltimore, half overweight and half normal weight, will get either real or fake air purifiers in their homes. Researchers will track asthma symptoms to see if the purifiers help overweight kids more, which could lead to better ways to manage asthma in this group.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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198 people
The number who actually took part.
- Started
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Aug 2016
- Expected to finish
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Sep 2027
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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8 to 17 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. 8-17 years of age 2. Persistent asthma (NAEPP criteria) 3. Exacerbation in previous 12 months 4. Non-smoker 5. Spends ≥4 nights/week at home 6. No plans to move during the study Exclusion Criteria: 1. Significant pulmonary or cardiac disease 2. Home not appropriate candidate due to disrepair 3. Underweight, defined by BMI \<5th percentile 4. Pregnancy
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Meredith McCormack
Baltimore, Maryland, 21224, United States
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Other studies related to the condition(s) this trial covers.
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