No-Surgery breast cancer treatment shows promise in early trial
NCT ID NCT04532177
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests a high-dose, precise radiation therapy called SBRT for people with breast cancer who cannot undergo surgery. Fifteen participants will receive five radiation treatments and be followed for five years to check for side effects and tumor response. The goal is to see if this approach can safely control the cancer without needing an operation.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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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
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About 15 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Aug 2020
- Expected to finish
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Aug 2027
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.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Age \>/= 18 * Biopsy proven invasive carcinoma of the breast * Clinical T1-T4 invasive carcinoma * Cancer is deemed unresectable with no possibility of future resection or the patient is a poor surgical candidate as determined following evaluation by a surgeon. * Women who are not post-menopausal should have a negative urine or serum pregnancy test. Women of childbearing potential must agree to adequate contraception for the duration of study participation. * Ability to understand and willingness to sign a written informed consent document * Life expectancy \> 6 months * Patient is to be treated at Stony Brook University Hospital Exclusion Criteria: * Women with a known pregnancy, positive serum pregnancy test, or currently breastfeeding as well as women of childbearing potential unwilling or unable to use an acceptable method of birth control (including abstinence or barrier method of birth control) to avoid pregnancy for the duration of the study. Should a woman become pregnant or suspect she is pregnant while participating in this study, she should inform her treating physician immediately. * Breast implant in the breast to be treated with SBRT * Insufficient breast imaging to judge clinical stage * Inability to receive study treatment planning and treatment secondary to body habitus * Inability to understand or unwillingness to sign a written consent document * Life expectancy \< 6 months * Children (\< 18 years of age) * Uncontrolled intercurrent illness including, but not limited to, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness or social situation that would limit compliance with study requirements
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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.
Contacts and locations
Locations
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Stony Brook University Hospital
Stony Brook, New York, 11794, United States
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