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Can air purifiers help heart patients? small study tests new approach

NCT ID NCT06384625

Knowledge-focused Sponsor: University of Montana Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tested an indoor air pollution intervention called AIRWISE in 20 adults aged 55 and older with heart disease. Participants received personal air cleaners, a color-changing air quality monitor, and educational materials. The goal was to see if they would use these tools regularly over 6 months, especially during wildfire season. This pilot study will help design a larger trial to see if improving indoor air can benefit heart health.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
personal air cleaners, indoor air quality monitors, and educational materials
What this could lead to
If successful, this could lead to a larger study that helps heart patients reduce indoor air pollution exposure, potentially improving heart health.
What could go wrong
This is a very small pilot study with only 20 people, so results may not apply to everyone. It focuses on whether people use the tools, not on health outcomes.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

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

20 people

The number who actually took part.

Started

Jul 2024

Finished

Nov 2025

Lead sponsor

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

55 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Adult of at least 55 years of age * One primary residence (5+ days per week) * Own a computer or electronic device (tablet or phone with web browser), and reliable internet connection or cell phone service (required to submit study surveys) * Access to a working email address (required to submit study surveys) * Electricity in the home (required to power the study equipment) Exclusion Criteria: * Current smoking of any kind (tobacco, cannabis, vape pens, cigars, etc.) or living in a household with someone who currently smokes * Current use of stand-alone home high efficiency purified air (HEPA) filtration or PAC unit in the home * Intention to move in the next 6 months * Another person in the household is enrolled in this study (one person per household can enroll) * Having any health condition that prevents the participants from having blood pressure measured using an upper-arm cuff: lymphedema, paresis or paralysis, arterial or venous lines/catheters, dialysis shunt, recent surgical wounds, or mastectomy

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Conditions

The condition(s) this trial relates to.

cardiovascular disorder coronary artery disorder Coronary Disease

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Cardiovascular diseases Coronary heart disease Environmental exposure

Contacts and locations

Locations

  • University of Montana

    Missoula, Montana, 59812, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.