NCT06030336

Brief Summary

The goal of this clinical trial is to learn about whether indoor air quality will improve over time in homes where occupants receive personalized information about levels of health-relevant air pollutants that includes practical, budget-friendly, and culturally relevant recommendations on actions they can take to improve their home's air quality. The rationale for the investigators' approach is that a rigorous intervention study design will generate robust evidence on the value of the in-home environmental data. Participating homes in both the intervention and control groups will receive three, one-week Home Health Box deployments spaced six weeks apart. After each of the first two deployments, homes in the intervention group will receive a Home Health Report with personalized information about in-home levels of health-relevant air pollutants and cost-sensitive recommendations on actions occupants can take to improve their home's air quality. The investigators will (a) investigate whether and how air quality changes over time in control and intervention homes and (b) survey intervention households on the utility of the Home Health Reports.

Trial Health

75
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
250

participants targeted

Target at P75+ for not_applicable

Timeline
6mo left

Started Mar 2024

Typical duration for not_applicable

Geographic Reach
1 country

2 active sites

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress82%
Mar 2024Oct 2026

First Submitted

Initial submission to the registry

August 30, 2023

Completed
12 days until next milestone

First Posted

Study publicly available on registry

September 11, 2023

Completed
6 months until next milestone

Study Start

First participant enrolled

March 11, 2024

Completed
2.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 30, 2026

Completed
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

October 30, 2026

Expected
Last Updated

January 12, 2026

Status Verified

January 1, 2026

Enrollment Period

2.1 years

First QC Date

August 30, 2023

Last Update Submit

January 8, 2026

Conditions

Outcome Measures

Primary Outcomes (1)

  • In-Home Air Quality

    In-home concentrations of fine particulate matter, nitrogen dioxide, and volatile organic compounds.

    from eight to up to 24 weeks

Study Arms (2)

Intervention

EXPERIMENTAL

The Home Health Report will provide quantitative information about health-relevant pollutants (fine particulate matter, carbon dioxide, nitrogen dioxide, and volatile organic compounds), their levels compared to health-based guidelines, their potential sources, as well as no- and low-cost actions occupants could take to improve indoor air quality. The Home Health Report will be designed to maximize utility to residents. Each Home Health Report will be provided after the corresponding Home Health Box deployment. The second Home Health Box deployment will occur after the household receiving their first Home Health Report. The third and final Home Health Box deployment will occur within one month of the household receiving their second Home Health Report.

Behavioral: Home Health Report

Control

NO INTERVENTION

Households in the control group will also receive three Home Health deployments spaced over several months, but will not receive Home Health Reports after the first and second deployments. At the close of their participation in the study, households in the control group will receive a comprehensive Home Health Report, including results from all three Home Health Box deployments and recommended actions occupants could take to improve their home air quality.

Interventions

The Home Health Report has been described in the intervention arm description.

Intervention

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • living in home for at least next six months

You may not qualify if:

  • if participants will not be living in the same household within six months of enrollment

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

UCHealth

Aurora, Colorado, 80045, United States

Location

Colorado State University

Fort Collins, Colorado, 80523, United States

Location

Related Publications (1)

  • Tryner J, Phillips M, Quinn C, Neymark G, Wilson A, Jathar SH, Carter E, Volckens J. Design and Testing of a Low-Cost Sensor and Sampling Platform for Indoor Air Quality. Build Environ. 2021 Dec;206:108398. doi: 10.1016/j.buildenv.2021.108398. Epub 2021 Sep 28.

    PMID: 34764540BACKGROUND

Study Officials

  • Ellison Carter, PhD

    Colorado State University

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Random assignment to the intervention or control group in blocks of four households, to maintain balance in the intervention and control groups over the course of study enrollment.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor

Study Record Dates

First Submitted

August 30, 2023

First Posted

September 11, 2023

Study Start

March 11, 2024

Primary Completion

April 30, 2026

Study Completion (Estimated)

October 30, 2026

Last Updated

January 12, 2026

Record last verified: 2026-01

Data Sharing

IPD Sharing
Will share

Our human subjects work will generate a comprehensive dataset that includes information on in home exposures, in-home activities, and home air quality in the form of quantitative, reference grade information on aerosol and gas constituents in indoor air. After de-identifying these data (including location data), we will publish these data in peer-reviewed journals. We will also generate subject response data from surveys and interviews. These data will be organized, assembled, and analyzed for publication in peer-reviewed journals. Standard restrictions would apply to the secondary research use of data involving human subjects, and these data would only be made available through a written agreement with the party requesting the data, after being deidentified.

Shared Documents
STUDY PROTOCOL, SAP
Time Frame
Data will become available to researchers associated with the project via the collaborating institutions as the data are being collected and for up to three years beyond the end of the study period.
Access Criteria
Researchers will be eligible for access if they are members of the overall study team.

Locations