Promoting Radon Testing Among Mothers of Young Children

Promoting Radon Testing Among Mothers of Young Children: A Translational Clinical Trial

Radon is the second-leading cause of lung cancer after smoking and may contribute to other cancer deaths; children are especially vulnerable due to a larger lung surface area and higher respiratory rates. The goal of this research is to test the feasibility of the radon app to promote radon testing among mothers of children aged 4 or younger when they receive a free radon test kit.

Study Overview

• Status: Recruiting
• Conditions: Lung Cancer (Diagnosis)
• Intervention / Treatment: Behavioral: The radon app

Detailed Description

This feasibility study enrolls mothers of children under age 4 who receive a free short-term radon test kit. Participants are introduced to and given access to a smartphone radon app designed to deliver targeted education, step-by-step testing instructions, reminders, and social-sharing prompts. The study measures cognitive outcomes (radon knowledge, self-efficacy for testing, and response efficacy beliefs) before and after app exposure, and behavioral outcomes (whether the test kit is completed and returned for lab analysis, and whether participants share radon information or recommend testing to others). Data collection combines brief baseline and follow-up surveys, app usage analytics (e.g., time in app, modules completed, reminder interactions), and laboratory confirmation of returned kits. Feasibility metrics include recruitment and retention rates, app engagement, and kit return rates.

• Study Type: Interventional
• Enrollment (Estimated): 100
• Phase: Not Applicable

Contacts and Locations

• Study Contact: Name: Soojung Kim Interim Dean, School of Graduate Studies, PhD, MPH; Phone Number: 701-777-2786; Email: soojung.kim@UND.edu

Study Locations

• United States
  • North Dakota
    • Bismarck, North Dakota, United States, 58501
      • Recruiting
      • University of North Dakota Center for Family Medicine, Bismarck Clinic
      • Contact: Senior Manager of Clinical Operations; Phone Number: 701-751-6753; Email: jodi.myrvik@und.edu
    • Minot, North Dakota, United States, 58701
      • Recruiting
      • University of North Dakota Center for Family Medicine, Minot Clinic
      • Contact: Senior Manager of Clinical Operations; Phone Number: 701-751-6753; Email: jodi.myrvik@und.edu

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Adult; Older Adult
• Accepts Healthy Volunteers: Yes

Description

Inclusion Criteria:

• Participants are female mothers of children aged 4 and under.
• Participants own a smartphone.
• Children brought in for appointments are their biological or adoptive child.

Exclusion Criteria:

• Previous testing for radon within the past two (2) years.
• The mother's child brought in for the appointment is over 4 years of age.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Prevention
• Allocation: N/A
• Interventional Model: Single Group Assignment
• Masking: None (Open Label)

Number of Arms

1

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: The radon app; Participants will be encouraged to download the radon app and asked to use the radon app for four months where they will be exposed to mobile friendly educational content that is created from educational print brochures about radon published by EPA.	Behavioral: The radon app; Participants will be asked to use the radon app.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
T1 (baseline: pre-exposure survey, distribution of free radon test kit)	T1 (baseline: pre-exposure survey, distribution of free radon test kit). The pre-expsosure survey will measure: Primary endpoints: (1) Radon knowledge, 20 true/false items); (2) self-efficacy, response efficacy, and sharing intention (7-point Likert).	Initial Enrollment to 2 months after enrollment
T2 (post-exposure survey at 2 months)	T2 refers to the time point where participants will complete the post-exposure survey, which will happen two months after T1. The primary endpoints are: (1) Changes in radon knowledge from T1 to T2, as measured by the number of correct responses to a series of 20 true/false questions (e.g., "The EPA recommends that homes with 4 picocuries per liter (pCi/L) or more of radon should be fixed."); (2) Changes in self-efficacy, response efficacy, and sharing intention from T1 to T2, measured by 7-point Likert scales; (3) Radon information shared with others and recommended to others to test their houses for radon from T1 to T2. It will be measured by a series of yes/no questions. Analyses: Aim 1-directional dependent t-tests for mean changes; McNemar's test for paired proportions of sharing.	2 months after enrollment
T3 (end of kit tracking at 4 months)	Number of radon test kits used and returned to the laboratory by participants. Directional McNemar's test for kit return proportions T1 vs T3.	4 months after last enrollment

Collaborators and Investigators

• Sponsor: University of North Dakota
• Collaborators: National Institute of General Medical Sciences (NIGMS)

Study record dates

Study Major Dates

• Study Start (Actual): April 10, 2026
• Primary Completion (Estimated): August 1, 2026
• Study Completion (Estimated): December 1, 2026

Study Registration Dates

• First Submitted: April 7, 2026
• First Submitted That Met QC Criteria: May 12, 2026
• First Posted (Actual): May 15, 2026

Study Record Updates

• Last Update Posted (Actual): May 15, 2026
• Last Update Submitted That Met QC Criteria: May 12, 2026
• Last Verified: May 1, 2026

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Pathologic Processes; Neoplasms by Site; Neoplasms; Respiratory Tract Diseases; Lung Diseases; Respiratory Tract Neoplasms; Thoracic Neoplasms; Pathological Conditions, Signs and Symptoms; Lung Neoplasms; Disease
• Other Study ID Numbers: IRB0006486; 5P20GM155890-02 (U.S. NIH Grant/Contract)

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No