Hormone therapy and breast cancer risk: new screening study launches
NCT ID NCT06383026
First seen Jun 26, 2026 · Last updated Jun 26, 2026
Summary
This study is for people aged 40-75 who are on hormone therapy (estrogen, progesterone, or testosterone). It aims to understand their breast cancer risk and improve screening by using mammograms and breast ultrasounds. Researchers will also interview participants to learn about their experiences and any barriers to getting screened.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- What this could lead to
- If successful, this could help design better breast cancer screening programs tailored for people on hormone therapy.
- What could go wrong
- This is a small pilot study (130 participants) focused on gathering data, not testing a treatment. Results may not apply to everyone.
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.
- Participants
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About 130 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Apr 2024
- Expected to finish
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Feb 2028
An estimate. End dates often move.
- Lead sponsor
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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.
Who is studied
Individuals on hormone therapy and breast cancer radiology stakeholders.
- Ages
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30 to 75 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide 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 for Individuals on Hormone Therapy: 1. Males 40-75 years of age with a history of ≥9 months of estrogen and/or progesterone hormone therapy. 2. Females 40-75 years of age with any history of testosterone hormone therapy, with or without cosmetic mastectomy, but have not undergone complete mastectomy. 3. Persons who have undergone breast cancer screening before can participate. 4. Individuals who meet criteria for above eligibility and are ≥30-39 years of age with a 1st or 2nd degree family member with breast cancer. 5. Ability to speak, read, and write in English. 6. Ability to understand a written informed consent document, and the willingness to sign it. Inclusion Criteria for Breast Radiology Faculty: 1. Board-certified radiologist that specializes in breast imaging and are an actively employed faculty member at Froedtert \& the Medical College of Wisconsin (main campus location). 2. Part of the breast radiology faculty who read both ABUS and MMG of the study participants. 3. Ability to speak, read, and write in English. 4. Ability to understand a written informed consent document, and the willingness to sign it. Inclusion Criteria for Breast Radiology Staff: 1. Must be either a technician, nurse, or clerical staff that works with the breast radiology team at Froedtert \& the Medical College of Wisconsin (main campus location). 2. Ability to understand a written informed consent document, and the willingness to sign it. 3. Ability to speak, read, and write in English. Exclusion Criteria for Individuals on Hormone Therapy 1. Females who have undergone or planned to undergo a complete mastectomy. 2. Females who are post-menopausal on estrogen +/- progesterone hormone therapy since it is a well-established risk for breast cancer). 3. A personal history of breast cancer or a known pathogenic gene mutation that increases the risk of breast cancer development (e.g., BRCA1/2, etc.) given that well-defined surveillance and screening recommendations exist for these persons. Exclusion Criteria for Breast Radiology Faculty 1. Not a board-certified radiologist. 2. Does not specialize in breast imaging. 3. Does not read ABUS and MMG and/or has not read imaging for study participants. Exclusion for Breast Radiology Staff 1\. Does not work with the breast radiology team.
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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
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Medical College of Wisconsin
RECRUITINGMilwaukee, Wisconsin, 53226, United States
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