Can tweaking risk numbers make women believe their breast cancer odds?

NCT ID NCT07793721

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Recruiting now
This trial is taking on new participants right now.
Not yet recruiting This study
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By invitation only
Not open to general applications. Only people the study team invites can take part.
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Paused for now. It may or may not start again.
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Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

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Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
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Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

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Status unknown
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First seen Aug 28, 2026 · Last updated Aug 28, 2026

Summary

Researchers are testing whether the format of a breast cancer risk estimate affects how much women believe it. Women aged 39 to 74 will receive a personalized risk estimate online, with some seeing risk over 5, 10, or 30 years, and others seeing it out of 100 or 1,000 women. Some women will also read answers to common questions about how the risk is calculated. The study asks whether these different presentations change women's skepticism about their risk.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
Behavioral intervention: different formats of presenting breast cancer risk estimates and exposure to frequently asked questions
What this could lead to
If it works, this could point toward better ways to communicate breast cancer risk, helping women make more informed screening decisions.
What could go wrong
This is an online survey study, not a treatment trial, so it won't change health outcomes directly. Results may not apply to all women or real-world settings.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 3,000 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

Sep 2026

An estimate. Start dates often move.

Expected to finish

Apr 2027

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

39 to 74 years

Sex

Female participants only

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: 1. Female sex 2. Age 39-74 (i.e., people who are eligible for routine breast cancer screening and for whom guidelines recommend an informed, risk-based decision) 3. English literacy Exclusion Criteria: 1\. Prior diagnosis of 1. breast cancer 2. Ductal carcinoma in situ (DCIS) 3. Lobular carcinoma in situ (LCIS) 4. Known BRCA1/2 gene mutation 5. Cowan syndrome 6. Li-Fraumeni syndrome 7. Having received previous chest radiation for treatment of Hodgkin's lymphoma.

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

How to take part

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  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

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Contacts and locations

Locations

  • University of Colorado Anschutz Medical Campus

    Aurora, Colorado, 80045, United States

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