Evaluation of Report-Back Strategies for Long-term and Short-term Exposure Information in Rural Tribal Populations

NCT ID: NCT06593340

Last Updated: 2025-12-12

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

NOT_YET_RECRUITING

Clinical Phase

NA

Total Enrollment

112 participants

Study Classification

INTERVENTIONAL

Study Start Date

2026-10-31

Study Completion Date

2028-04-30

Brief Summary

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The goal of this study is to evaluate different ways to provide feedback about environmental sampling results to participants. Specifically, the study will look at exposures with long-term risk (radon) and short-term risk (indoor particulate matter, PM2.5). The hypothesis is that providing feedback in real-time will result in participants engaging in more activities to try to reduce their exposure. One of the main questions of interest is: How does the information messenger impact the effectiveness of report-back strategies in rural, tribal populations?

Participants will have radon and PM2.5 measurement equipment installed at their home and will answer questions about any actions they took to reduce exposure. Previously developed approaches to reporting back those exposures will be used to test which feedback method results in more actions to reduce exposure.

Detailed Description

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Conditions

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Behavior Change

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

NONE

Study Groups

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Real-Time Exposure Data

Participants in this arm will get their data reported-back in real-time. There will be a total of 4 different strategies tested based on a combination of two (2) messengers and two (2) formats tested.

Group Type EXPERIMENTAL

Format 2

Intervention Type BEHAVIORAL

The second type of format (specific details TBD) that will be used to deliver the environmental sampling results.

Messenger 2

Intervention Type BEHAVIORAL

The second type of messenger (specific details TBD) that will be used to deliver the environmental sampling results.

Format 1

Intervention Type BEHAVIORAL

The first type of format (specific details TBD) that will be used to deliver the environmental sampling results.

Messenger 1

Intervention Type BEHAVIORAL

The first type of messenger (specific details TBD) that will be used to deliver the environmental sampling results.

Delayed Exposure Data

Participants in this arm will get their data reported-back only after all exposure data are collected (i.e., delayed approximately 2 months). There will be a total of 4 different strategies tested based on a combination of two (2) messengers and two (2) formats tested.

Group Type EXPERIMENTAL

Format 2

Intervention Type BEHAVIORAL

The second type of format (specific details TBD) that will be used to deliver the environmental sampling results.

Messenger 2

Intervention Type BEHAVIORAL

The second type of messenger (specific details TBD) that will be used to deliver the environmental sampling results.

Format 1

Intervention Type BEHAVIORAL

The first type of format (specific details TBD) that will be used to deliver the environmental sampling results.

Messenger 1

Intervention Type BEHAVIORAL

The first type of messenger (specific details TBD) that will be used to deliver the environmental sampling results.

Interventions

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Format 2

The second type of format (specific details TBD) that will be used to deliver the environmental sampling results.

Intervention Type BEHAVIORAL

Messenger 2

The second type of messenger (specific details TBD) that will be used to deliver the environmental sampling results.

Intervention Type BEHAVIORAL

Format 1

The first type of format (specific details TBD) that will be used to deliver the environmental sampling results.

Intervention Type BEHAVIORAL

Messenger 1

The first type of messenger (specific details TBD) that will be used to deliver the environmental sampling results.

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* Enrolled member of the participating tribe

Exclusion Criteria

* Participant in one of our previous studies
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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National Institute of Environmental Health Sciences (NIEHS)

NIH

Sponsor Role collaborator

University of Utah

OTHER

Sponsor Role lead

Responsible Party

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Darrah Sleeth

Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Central Contacts

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Darrah K Sleeth, PhD

Role: CONTACT

801-585-3587

Scott Collingwood, PhD

Role: CONTACT

801-213-3726

Other Identifiers

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R01ES036260

Identifier Type: NIH

Identifier Source: secondary_id

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R01ES036260

Identifier Type: NIH

Identifier Source: org_study_id

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