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NCT02236858 · ClinicalTrials.gov registry record · NA
Clinical Trial of Air Cleaners to Improve Indoor Air Quality and COPD Health
A NA study, sponsored by Johns Hopkins University.
- Completed
- Registry status
- NA
- Development phase
- 142
- Enrollment target
NCT02236858: Completed NA study, sponsored by Johns Hopkins University.
NCT02236858 is a NA study that has completed, run by Johns Hopkins University. The registered enrollment target is 142 participants, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (90% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT02236858, a NA study, has completed, sponsored by Johns Hopkins University.
- COMPLETED
- Registry status
- NA
- Development phase
- 142 participants
- Enrollment target
Study Summary
Objectives (include all primary and secondary objectives) Specific Aim #1: To determine whether an air cleaner intervention to improve home air quality will improve respiratory symptoms, quality of life, lung function and reduce risk of exacerbations in former smokers with COPD. Hypothesis: An intervention using high-efficiency particulate air (HEPA) and carbon filter air cleaners in homes of former smokers with COPD will improve respiratory symptoms, quality of life, and lung function and reduce risk of COPD exacerbations compared with placebo (sham air cleaners). Specific Aim #2: To determine whether an air cleaner intervention to improve home air quality will be associated with intermediate outcome measures known to be linked with long term outcomes in COPD, including airway and systemic markers of inflammation and oxidative stress, in former smokers with COPD. Hypothesis 2: An intervention using HEPA and carbon filter air cleaners in homes of formers smokers with COPD will be associated with lower levels of markers of inflammation and oxidative stress known to be associated with adverse outcomes in patients with COPD.
Primary Outcome
St. George's Respiratory Questionnaire (SGRQ). The total score is from 0 to 100. Higher scores indicate more limitations
Interventions
- DEVICE HEPA Air Cleaner
- DEVICE Sham HEPA Air Cleaner
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 142 participants |
| Start Date | 2014-03 |
| Est. Completion | 2021-09-10 |
| Phase | NA |
What the finished NCT02236858 record still lists
NCT02236858 is an interventional study that assigns participants to a tested intervention. The registered 142 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 (90% lower).
The record links to 0 conditions, and to 2 interventions - of which HEPA Air Cleaner is the first listed.
NCT02236858 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT02236858 about?
NCT02236858 is a clinical study titled "Clinical Trial of Air Cleaners to Improve Indoor Air Quality and COPD Health". Objectives (include all primary and secondary objectives) Specific Aim #1: To determine whether an air cleaner intervention to improve home air quality will improve respiratory symptoms, quality of life, lung function and reduce risk of exacerbations in former smokers with COPD. Hypothesis: An int...
What is the current status of trial NCT02236858?
This trial is currently completed. It is a NA study. The enrollment target is 142 participants. The study started on 2014-03. Estimated completion is 2021-09-10.
What interventions are being tested in trial NCT02236858?
The interventions under investigation include: HEPA Air Cleaner (DEVICE), Sham HEPA Air Cleaner (DEVICE).
Who is sponsoring clinical trial NCT02236858?
This trial is sponsored by Johns Hopkins University, which has 1,448 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT02236858's enrollment target sits among peer trials
142 711th of 2000 higher than 1,289 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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