Home Air Radon TestingHHSNCT05833334
Healthy Homes Study
A study testing Public health infographic (AIM 3), Online health promotion intervention tailored by smoking status (AIM 3) and Online health promotion intervention tailored by smoking status, plus reminder messages (AIM 3) in people with Home Air Radon Testing and Lung Cancer, run by Dartmouth-Hitchcock Medical Center at 1 site in United States.
Trial summary
This study is about home air radon testing and has two phases. The goal of the first phase is to learn about renters' and homeowners' views and plans related to radon testing. The main question this phase aims to answer is: 1. Read more about this study
- Who is it for?
- Ages 18 years and olderHealthy volunteers can take part
- Conditions the study is for
- Home Air Radon Testing, Lung Cancer
- What is being tested?
- Public health infographic (AIM 3), Online health promotion intervention tailored by smoking status (AIM 3) and Online health promotion intervention tailored by smoking status, plus reminder messages (AIM 3)
- Type of treatment
- Lifestyle or therapy programme
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 172 participants
- Where
- 1 siteUnited States
- Study dates
- 1 Jun 2023to 24 Aug 2027
- Phase
- Interventional
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- Be at least 18 years old
- Have a valid mailing address in New Hampshire or Vermont,
- Have not tested their current homes for radon,
- Rent or own their home, and
- Live at their home year-round
Who cannot join
- N/A
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
United States1 site, 1 recruiting
- Recruiting
Dartmouth Cancer Center
Lebanon, New Hampshire, 03756
Stephanie Papas, MPH, 603-646-5824, stephanie.papas@dartmouth.edu
About this study
Official title: Co-developing and Pilot Testing a Risk-tailored, Technology-supported Intervention to Increase Home Radon Testing in New Hampshire and Vermont
This study is about home air radon testing and has two phases.
The goal of the first phase is to learn about renters' and homeowners' views and plans related to radon testing. The main question this phase aims to answer is:
Read more
- Does taking part in a focus group with information about radon testing change people's plans to test for radon?
Participants in the first study phase will:
- Take a survey about their views on and plans for radon testing.
- Take part in a focus group discussion about radon testing, during which they will receive information about radon testing.
- Right after the focus group, take a survey about their plans for radon testing.
The second phase is a pilot interventional study. The goal is to test interventions about radon testing with renters and homeowners who smoke and do not smoke. The main questions this phase aims to answer are:
- Does the recruitment strategy result in enough participants enrolling within 3 months?
- Will at least 80% of participants complete data collection activities?
- Will more participants who view an online intervention developed by the researchers request free radon test kits, set them up in their homes, and complete radon testing, compared to participants who view a standard public health infographic? And will even more participants who receive reminder messages, in addition to the online intervention, request free radon test kits, set them up in their homes, and complete radon testing?
Participants in this second phase will:
- Take a survey about their views on and plans for radon testing.
- View an intervention about radon testing.
- Right after viewing the intervention, take a survey about their views on and plans for radon testing.
- 2 months later, take a survey about what, if any, steps they've taken to test their homes for radon.
- Provide the researchers permission to collect data from their State Radon Program on: a) whether they requested a free radon test kit and b) whether testing was completed.
Some participants will receive reminder messages for 2 months after viewing the intervention.
Researchers will compare an online intervention they developed about radon testing to: a) a standard public health infographic and b) their online intervention combined with reminder messages about radon testing. They will compare the interventions by proportion of participants who: a) request a free radon test kit from their State Radon Programs, b) set-up the radon test kit in their homes, and c) complete radon testing.
Read the detailed description
This study is a pilot research study.
- Conditions
- Home Air Radon Testing, Lung Cancer
- Being tested
- Public health infographic (AIM 3), Online health promotion intervention tailored by smoking status (AIM 3), Online health promotion intervention tailored by smoking status, plus reminder messages (AIM 3), Focus group with educational overview (AIM 1)
- Keywords
- Radon testing, Behavior change, Smoking, Air quality
- Medical subject headings
- Lung Neoplasms, Smoking
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Public health infographic (AIM 3)Behavioural
Standard public health infographic about home air radon testing, plus information about requesting a free home air radon test kit
Online health promotion intervention tailored by smoking status (AIM 3)Behavioural
Online health promotion intervention with messaging about home air radon testing tailored by the participant's stated smoking status, plus information about requesting a free home air radon test kit
Online health promotion intervention tailored by smoking status, plus reminder messages (AIM 3)Behavioural
Online health promotion intervention with messaging about home air radon testing tailored by the participant's stated smoking status, plus information about requesting a free home air radon test kit, plus reminder messages about home air radon testing sent over two months
Focus group with educational overview (AIM 1)Behavioural
90-minute online focus group discussion about home air radon testing, plus an educational overview about home air radon testing using a standard public health infographic
| Study group | Role | What they receive |
|---|---|---|
| Public health infographic (AIM 3) | Active comparator | Participants will view a standard public health infographic about home air radon testing and will receive information about requesting a free home air radon test kit from their state radon program. Receives: Behavioral: Public health infographic (AIM 3) |
| Online health promotion intervention tailored by smoking status (AIM 3) | Experimental | Participants will view an online health promotion intervention about home air radon testing, with messaging tailored based on whether the participant smokes or does not smoke. Participants will also receive information about requesting a free home air radon test kit from their state radon program. Receives: Behavioral: Online health promotion intervention tailored by smoking status (AIM 3) |
| Online health promotion intervention tailored by smoking status, plus reminder messages (AIM 3) | Experimental | Participants will view an online health promotion intervention about home air radon testing, with messaging tailored based on whether the participant smokes or does not smoke. Participants will also receive information about requesting a free home air radon test kit from their state radon program, as well as reminder messages about radon testing for about two months after initially viewing the online intervention component. Receives: Behavioral: Online health promotion intervention tailored by smoking status, plus reminder messages (AIM 3) |
| Focus group with educational overview (AIM 1) | Experimental | Participants will participate in a focus group discussion about radon testing and will receive a brief educational overview about radon testing. Receives: Behavioral: Focus group with educational overview (AIM 1) |
What is being measured
The primary outcome is the main question the study is designed to answer.
Number of participants enrolled in the study (AIM 3)
Number of participants who consent into the study and meet eligibility criteria within 3 months of study opening to enrollment.
Measured: 3 months
Proportion of study participants who complete all study surveys (AIM 3)
Proportion of study participants who complete all study-related surveys, including the pre-intervention survey, post-intervention survey, and follow-up survey at 2 months post-intervention.
Measured: 2 months
Proportion of participants who request a home radon test kit at 18 months (AIM 3)
Proportion of participants, by study arm, who request a free home radon test kit from the New Hampshire Radon Program or Vermont Radon Program in the 18 months following the intervention, the New Hampshire Radon Program or Vermont Radon Program, as reported by the state radon programs; radon test kits are attributed to participants if the state radon program records match the participant's name and/or address of home residence.
Measured: 18 months
Proportion of participants who request a home radon test kit at 2 months (AIM 3)
Proportion of participants, by study arm, who request a free home radon test kit from the New Hampshire Radon Program or Vermont Radon Program in the 18 months following the intervention, the New Hampshire Radon Program or Vermont Radon Program, as reported by the state radon programs; radon test kits are attributed to participants if the state radon program records match the participant's name and/or address of home residence.
Measured: 2 months
Proportion of participants who set-up a home radon test kit in their home (AIM 3)
Proportion of participants, by study arm, who report setting up the a home radon test kit in their home at two months post-intervention.
Measured: 2 months
Proportion of participants who complete home radon testing at 18 months (AIM 3)
Proportion of participants, by study arm who either: a) report completing radon testing via the follow-up survey at two months post-intervention, or b) submit a home radon test kit for analysis through the New Hampshire Radon Program or Vermont Radon Program, as reported by the state radon programs; radon test kits are attributed to participants if the state radon program records match the participant's name and/or address of home residence.
Measured: 18 months
Proportion of participants who complete home radon testing at 2 months (AIM 3)
Proportion of participants, by study arm who either: a) report completing radon testing via the follow-up survey at two months post-intervention, or b) submit a home radon test kit for analysis through the New Hampshire Radon Program or Vermont Radon Program, as reported by the state radon programs; radon test kits are attributed to participants if the state radon program records match the participant's name and/or address of home residence.
Measured: 2 months
Secondary outcomes (1)
Change in participants' intentions to test the air in their homes for radon in the next 12 months (AIM 1)
Intention to test will be measured on a scale of 0 to 10, with 0 indicating they definitely will not test their home air for radon and 10 indicating they definitely will test their home air for radon in the next 12 months.
Measured: Baseline (pre-test, approximately 1-4 weeks before intervention), immediately after the intervention (post-test)
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted27 Apr 2023
- Study start1 Jun 2023
- Primary completion24 Aug 2027 (estimated)
- Study completion24 Aug 2027 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Home Air Radon TestingStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 172 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Dartmouth-Hitchcock Medical Center
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Judith R. Rees, Dartmouth-Hitchcock Medical Center
- Investigators
- Judith R Rees, BM, BCh, PhD, Principal investigator, Dartmouth-Hitchcock Medical CenterRian M Hasson, MD, MPH, Principal investigator, Dartmouth-Hitchcock Medical Center
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05833334
- Sponsor's protocol ID
- STUDY02001931
- Other IDs
- NCI-2024-01233
- Acronym
- HHS
- Status last verified
- Jan 2026
- First submitted
- 17 Apr 2023
- Last updated
- 30 Jan 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 30 Jan 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Co-developing and Pilot Testing a Risk-tailored, Technology-supported Intervention to Increase Home Radon Testing in New Hampshire and Vermont
- ClinicalTrials.gov ID
- NCT05833334
- Acronym / sponsor ID
- HHS / STUDY02001931
- Conditions
- Home Air Radon Testing, Lung Cancer
- Keywords
- Radon testing, Behavior change, Smoking, Air quality
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 172 participants (estimated)
- Lead sponsor
- Dartmouth-Hitchcock Medical CenterUniversity, hospital or other
- Study start
- 1 Jun 2023 (actual)
- Primary completion
- 24 Aug 2027 (estimated)
- Study completion
- 24 Aug 2027 (estimated)
- First posted
- 27 Apr 2023 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This study is about home air radon testing and has two phases.
The goal of the first phase is to learn about renters' and homeowners' views and plans related to radon testing. The main question this phase aims to answer is:
- Does taking part in a focus group with information about radon testing change people's plans to test for radon?
Participants in the first study phase will:
- Take a survey about their views on and plans for radon testing.
- Take part in a focus group discussion about radon testing, during which they will receive information about radon testing.
- Right after the focus group, take a survey about their plans for radon testing.
The second phase is a pilot interventional study. The goal is to test interventions about radon testing with renters and homeowners who smoke and do not smoke. The main questions this phase aims to answer are:
- Does the recruitment strategy result in enough participants enrolling within 3 months?
- Will at least 80% of participants complete data collection activities?
- Will more participants who view an online intervention developed by the researchers request free radon test kits, set them up in their homes, and complete radon testing, compared to participants who view a standard public health infographic? And will even more participants who receive reminder messages, in addition to the online intervention, request free radon test kits, set them up in their homes, and complete radon testing?
Participants in this second phase will:
- Take a survey about their views on and plans for radon testing.
- View an intervention about radon testing.
- Right after viewing the intervention, take a survey about their views on and plans for radon testing.
- 2 months later, take a survey about what, if any, steps they've taken to test their homes for radon.
- Provide the researchers permission to collect data from their State Radon Program on: a) whether they requested a free radon test kit and b) whether testing was completed.
Some participants will receive reminder messages for 2 months after viewing the intervention.
Researchers will compare an online intervention they developed about radon testing to: a) a standard public health infographic and b) their online intervention combined with reminder messages about radon testing. They will compare the interventions by proportion of participants who: a) request a free radon test kit from their State Radon Programs, b) set-up the radon test kit in their homes, and c) complete radon testing.
Detailed description
This study is a pilot research study.
Study design
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 4
| Arm | Type | Receives |
|---|---|---|
| Public health infographic (AIM 3) | Active comparator | Behavioral: Public health infographic (AIM 3)Participants will view a standard public health infographic about home air radon testing and will receive information about requesting a free home air radon test kit from their state radon program. |
| Online health promotion intervention tailored by smoking status (AIM 3) | Experimental | Behavioral: Online health promotion intervention tailored by smoking status (AIM 3)Participants will view an online health promotion intervention about home air radon testing, with messaging tailored based on whether the participant smokes or does not smoke. Participants will also receive information about requesting a free home air radon test kit from their state radon program. |
| Online health promotion intervention tailored by smoking status, plus reminder messages (AIM 3) | Experimental | Behavioral: Online health promotion intervention tailored by smoking status, plus reminder messages (AIM 3)Participants will view an online health promotion intervention about home air radon testing, with messaging tailored based on whether the participant smokes or does not smoke. Participants will also receive information about requesting a free home air radon test kit from their state radon program, as well as reminder messages about radon testing for about two months after initially viewing the online intervention component. |
| Focus group with educational overview (AIM 1) | Experimental | Behavioral: Focus group with educational overview (AIM 1)Participants will participate in a focus group discussion about radon testing and will receive a brief educational overview about radon testing. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (5 listed)
- Be at least 18 years old
- Have a valid mailing address in New Hampshire or Vermont,
- Have not tested their current homes for radon,
- Rent or own their home, and
- Live at their home year-round
Key exclusion criteria (1 listed)
- N/A
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Public health infographic (AIM 3)Standard public health infographic about home air radon testing, plus information about requesting a free home air radon test kit | Behavioural | Public health infographic (AIM 3) |
| Online health promotion intervention tailored by smoking status (AIM 3)Online health promotion intervention with messaging about home air radon testing tailored by the participant's stated smoking status, plus information about requesting a free home air radon test kit | Behavioural | Online health promotion intervention tailored by smoking status (AIM 3) |
| Online health promotion intervention tailored by smoking status, plus reminder messages (AIM 3)Online health promotion intervention with messaging about home air radon testing tailored by the participant's stated smoking status, plus information about requesting a free home air radon test kit, plus reminder messages about home air radon testing sent over two months | Behavioural | Online health promotion intervention tailored by smoking status, plus reminder messages (AIM 3) |
| Focus group with educational overview (AIM 1)90-minute online focus group discussion about home air radon testing, plus an educational overview about home air radon testing using a standard public health infographic | Behavioural | Focus group with educational overview (AIM 1) |
Primary outcome
Number of participants enrolled in the study (AIM 3)
Time frame: 3 months
Number of participants who consent into the study and meet eligibility criteria within 3 months of study opening to enrollment.
Proportion of study participants who complete all study surveys (AIM 3)
Time frame: 2 months
Proportion of study participants who complete all study-related surveys, including the pre-intervention survey, post-intervention survey, and follow-up survey at 2 months post-intervention.
Proportion of participants who request a home radon test kit at 18 months (AIM 3)
Time frame: 18 months
Proportion of participants, by study arm, who request a free home radon test kit from the New Hampshire Radon Program or Vermont Radon Program in the 18 months following the intervention, the New Hampshire Radon Program or Vermont Radon Program, as reported by the state radon programs; radon test kits are attributed to participants if the state radon program records match the participant's name and/or address of home residence.
Proportion of participants who request a home radon test kit at 2 months (AIM 3)
Time frame: 2 months
Proportion of participants, by study arm, who request a free home radon test kit from the New Hampshire Radon Program or Vermont Radon Program in the 18 months following the intervention, the New Hampshire Radon Program or Vermont Radon Program, as reported by the state radon programs; radon test kits are attributed to participants if the state radon program records match the participant's name and/or address of home residence.
Proportion of participants who set-up a home radon test kit in their home (AIM 3)
Time frame: 2 months
Proportion of participants, by study arm, who report setting up the a home radon test kit in their home at two months post-intervention.
Proportion of participants who complete home radon testing at 18 months (AIM 3)
Time frame: 18 months
Proportion of participants, by study arm who either: a) report completing radon testing via the follow-up survey at two months post-intervention, or b) submit a home radon test kit for analysis through the New Hampshire Radon Program or Vermont Radon Program, as reported by the state radon programs; radon test kits are attributed to participants if the state radon program records match the participant's name and/or address of home residence.
Proportion of participants who complete home radon testing at 2 months (AIM 3)
Time frame: 2 months
Proportion of participants, by study arm who either: a) report completing radon testing via the follow-up survey at two months post-intervention, or b) submit a home radon test kit for analysis through the New Hampshire Radon Program or Vermont Radon Program, as reported by the state radon programs; radon test kits are attributed to participants if the state radon program records match the participant's name and/or address of home residence.
1 secondary outcome
Change in participants' intentions to test the air in their homes for radon in the next 12 months (AIM 1)
Time frame: Baseline (pre-test, approximately 1-4 weeks before intervention), immediately after the intervention (post-test)
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 30 Jan 2026.
- Individual participant dataSharing planned: No
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
Judith R Rees, BM, BCh, PhD principal investigator
Dartmouth-Hitchcock Medical Center
Rian M Hasson, MD, MPH principal investigator
Dartmouth-Hitchcock Medical Center
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Public health infographic (AIM 3), Online health promotion intervention tailored by smoking status (AIM 3) and Online health promotion intervention tailored by smoking status, plus reminder messages (AIM 3) in people with Home Air Radon Testing and Lung Cancer, run by Dartmouth-Hitchcock Medical Center at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 5 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: looking for participants now, as of the sponsor's last update on 30 Jan 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Stephanie Papas, MPH (603-646-5824, Stephanie.Papas@dartmouth.edu), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Number of participants enrolled in the study (AIM 3) (time frame: 3 months). The study lists 7 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 30 Jan 2026.