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Can MRI make breast cancer radiation more precise?

NCT ID NCT05902507

Knowledge-focused Sponsor: University of California, San Francisco Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
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 Results may not be published yet.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)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
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

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study is testing whether using an MRI scan before radiation therapy can help doctors plan treatment more accurately for breast cancer. About 20 people will take part. The main goal is to see if adding an MRI to the usual planning process is practical and works well.

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

About 20 people

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

Started

May 2023

Expected to finish

May 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.

Who is studied

Female participants with breast cancer planning to undergo breast conserving surgery (BCS) and RT outside of this protocol.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

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. Participants with an Eastern Cooperative Oncology Group (ECOG) performance status \<=2 (or Karnofsky ≥\>=60%, see Appendix A). 2. Participants with the ability to understand and the willingness to sign a written informed consent document. 3. Participants may separately enroll on therapeutic clinical trials when they enroll on this trial. Note: All interventions on this protocol are standard of care, so enrollment on other therapeutic protocols is allowed at the discretion of the treating physician. 4. Patients must have pathologically confirmed invasive or in situ breast cancer. 5. Patients must have tumors in which adjuvant breast radiotherapy following breast conserving surgery is indicated, as determined by the treating physician. 6. Patients must be female. Note: Male patients are excluded due to the rarity of male breast cancer and difficulty in pursuing breast conserving surgery for male patients. Exclusion Criteria: 1. Participants with a contraindication to MRI per the MRI checklist. 2. Patients with breast tumor or tumor bed not visualized at CT or MRI during RT planning.

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Conditions

The condition(s) this trial relates to.

breast cancer breast neoplasm

As listed by the trial registrant

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

Breast cancer

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The study's own enquiry address

    This study publishes an address for enquiries. See it below .

  2. The places running it

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

  3. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  4. 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

  • University of California, San Francisco

    RECRUITING

    San Francisco, California, 94143, United States

    Contact Email: •••••@•••••

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