NCT07806799

Brief Summary

This study will test the effects of radon risk messages with different target groups on intention to test/mitigate.

Trial Health

65
Monitor

Trial Health Score

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

Enrollment
500

participants targeted

Target at P75+ for not_applicable

Timeline
32mo left

Started Oct 2026

Typical duration for not_applicable

Status
not yet recruiting

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

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

August 28, 2026

Completed
11 days until next milestone

First Posted

Study publicly available on registry

September 8, 2026

Completed
23 days until next milestone

Study Start

First participant enrolled

October 1, 2026

Completed
6 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 1, 2027

Expected
2.2 years until next milestone

Study Completion

Last participant's last visit for all outcomes

May 31, 2029

Last Updated

September 10, 2026

Status Verified

August 1, 2026

Enrollment Period

6 months

First QC Date

August 28, 2026

Last Update Submit

September 4, 2026

Conditions

Radon Exposure

Outcome Measures

Primary Outcomes (1)

  • Intention to Test or Mitigate for Radon

    Participants' intention to test for radon or take steps to mitigate radon, assessed by asking how soon the participants plan to test for radon or take steps to fix radon.

    Immediately after viewing the messages

Study Arms (3)

Treatment Group

EXPERIMENTAL

Newly designed or adapted radon risk messaging materials.

Behavioral: Radon Risk Messaging Materials

Comparison Group

ACTIVE COMPARATOR

Generic or standard radon materials from the Environmental Protection Agency (EPA) or Centers for Disease Control (CDC).

Behavioral: Radon Risk Messaging Materials

Waitlist Control

NO INTERVENTION

No radon messaging materials during the trial. Participants may receive information about radon after the trial.

Interventions

Radon Risk Messaging MaterialsBEHAVIORAL

Newly designed or adapted radon risk messaging materials intended to increase radon awareness and risk perception or prompt radon mitigation.

Comparison GroupTreatment Group

Eligibility Criteria

Age21 Years - 100 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Rural resident participants must be a homeowner or the primary decision maker in the home.
  • Rural resident participants must live in a rural area, defined as residence in a rural-urban community area (RUCA) with a code of 4-7.
  • Rural resident participants must be able to read and speak english.
  • Participants in the radon messaging groups will include individuals who have never tested their home for radon and individuals whose home has tested high for radon but have not mitigated their home.

You may not qualify if:

  • For rural resident online study, individuals who are not a homeowner or primary decision maker in the home, do not live in a qualifying rural area, or do not have internet access.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Central Study Contacts

Stacy Stanifer, PhD

CONTACT

859-323-6874stacy.stanifer@uky.edu

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Assistant Professor

Study Record Dates

First Submitted

August 28, 2026

First Posted

September 8, 2026

Study Start

October 1, 2026

Primary Completion (Estimated)

April 1, 2027

Study Completion (Estimated)

May 31, 2029

Last Updated

September 10, 2026

Record last verified: 2026-08