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NCT01869543 · ClinicalTrials.gov registry record · NA
Asthma and Indoor-air: Reducing Exposures
A NA study, sponsored by University of California, Davis.
- Completed
- Registry status
- NA
- Development phase
- 219
- Enrollment target
NCT01869543: Completed NA study, sponsored by University of California, Davis.
NCT01869543 is a NA study that has completed, run by University of California, Davis. The registered enrollment target is 219 participants, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (84% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT01869543, a NA study, has completed, sponsored by University of California, Davis.
- COMPLETED
- Registry status
- NA
- Development phase
- 219 participants
- Enrollment target
Study Summary
Two hundred moderate to severely asthmatic children (6-12 years) will be enrolled in a study to look at the effectiveness of high efficiency filtration of indoor air in homes on reducing asthma symptoms. One intervention group will have high efficiency filters or filtration systems installed in their central heating and air conditioning (HVAC) system. The second intervention group will have high efficiency portable air cleaners placed in the child's bedroom and in the main living area. Each participant will receive true air filtration for a year and a placebo for a year. During the placebo period a sham filter will be used that removes very little of the particles. Measures of health effects will include days of symptoms, unplanned utilization of the healthcare system for asthma-related illness, short-term medication use, peak exhaled flow, spirometry, and exhaled nitric oxide (eNO).
Primary Outcome
The maximum number of days with symptoms, from a two-week recall period, will be determined every three months. The maximum number of days with symptoms will be defined as the largest value among the following three variables: (i) number of days with wheezing, tightness in the chest, or cough because of asthma, (ii) number of days that the child had to slow down or stop his/her play or activities because of asthma, wheezing or tightness in the chest, or cough, or (iii) number of nights that the
Interventions
- OTHER Stand Alone Air Cleaner
- OTHER HVAC Modification
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 219 participants |
| Start Date | 2012-07 |
| Est. Completion | 2017-02-08 |
| Phase | NA |
What the finished NCT01869543 record still lists
NCT01869543 is an interventional study that assigns participants to a tested intervention. The registered 219 participants enrollment target is mid-sized for trials with a published cap, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (84% lower).
The record links to 0 conditions, and to 2 interventions - of which Stand Alone Air Cleaner is the first listed.
NCT01869543 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT01869543 about?
NCT01869543 is a clinical study titled "Asthma and Indoor-air: Reducing Exposures". Two hundred moderate to severely asthmatic children (6-12 years) will be enrolled in a study to look at the effectiveness of high efficiency filtration of indoor air in homes on reducing asthma symptoms. One intervention group will have high efficiency filters or filtration systems installed in thei...
What is the current status of trial NCT01869543?
This trial is currently completed. It is a NA study. The enrollment target is 219 participants. The study started on 2012-07. Estimated completion is 2017-02-08.
What interventions are being tested in trial NCT01869543?
The interventions under investigation include: Stand Alone Air Cleaner (OTHER), HVAC Modification (OTHER).
Who is sponsoring clinical trial NCT01869543?
This trial is sponsored by University of California, Davis, which has 657 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT01869543's enrollment target sits among peer trials
219 485th of 2000 higher than 1,516 of 2,000 other NA trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other NA trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source ClinicalTrials.gov registry export · 2026-08-08
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