Blood test may help tailor breast cancer treatment
NCT ID NCT05333874
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This pilot study is testing whether a personalized blood test that looks for leftover tumor DNA can help doctors make better treatment decisions for people with early-stage breast cancer. About 34 participants with triple-negative or HER2-positive breast cancer will receive chemotherapy before surgery, then have their blood tested after surgery. If the test finds cancer DNA, patients may choose to change their follow-up treatment. The goal is to see if this approach improves outcomes and reduces unnecessary treatments.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Neoadjuvant chemotherapy and a personalized blood test (Signatera) that detects tumor DNA in the blood
- What this could lead to
- If successful, this could help doctors decide whether more or less treatment is needed after surgery, potentially reducing unnecessary side effects.
- What could go wrong
- This is a very early pilot study with only 34 participants, so results may not apply to everyone. The blood test is still experimental and may not always be accurate.
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
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Early phase 1
The earliest testing in people: a first look at safety, in a very small group.
- Participants
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About 34 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Apr 2022
- Expected to finish
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Nov 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.
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: * Participants with a diagnosis of clinical Stage II-III triple negative and/or HER2 positive breast cancer * Age ≥ 18 years * Estimated life expectancy of at least twelve months * Participant must be eligible for neoadjuvant systemic therapy per treating physician * Eastern Cooperative Oncology Group (ECOG) performance status ≤ 2 * Able to provide signed and dated informed consent form * Must have ctDNA at the time of screening to be eligible for the study * Participants enrolled on other systemic therapy trials may be eligible to participate in the study after discussion with principal investigator * Be willing to present for medical exams and blood draws as scheduled per protocol Exclusion Criteria: * Evidence of metastatic breast cancer * Any other concurrent malignancy * Prior malignancies (except non-melanoma skin cancers, and the following in situ cancers: bladder, gastric, colon, endometrial, cervical/dysplasia, melanoma, or breast) unless a complete remission was achieved at least one year prior to study entry * Participant is pregnant * Serious concomitant systemic disorder that would compromise the safety of the participant or compromise the participant's ability to complete the study, at the discretion of the investigator * Bone marrow transplant or other organ transplant recipient * History of psychiatric illness or social situations that would limit compliance with study requirements * Has a history or current evidence of any condition, therapy, or laboratory abnormality that might confound the results of the trial, interfere with the subject's participation for the full duration of the trial, or is not in the best interest of the subject to participate, in the opinion of the treating investigator
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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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Cooperman Barnabas Medical Center
Livingston, New Jersey, 07052, United States
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Jersey City Medical Center
Jersey City, New Jersey, 07302, United States
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Monmouth Medical Center
Long Branch, New Jersey, 07740, United States
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Monmouth Medical Center - Southern Campus
Lakewood, New Jersey, 08701, United States
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Monmouth Medical Center Vantage Point Infusion Cente
West Long Branch, New Jersey, 07746, United States
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Newark Beth Israel Medical Center
Newark, New Jersey, 07112, United States
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RWJBarnabas Health - Robert Wood Johnson University Hospital
Hamilton, New Jersey, 08690, United States
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Robert Wood Johnson Barnabas Hospital -Somerset
Somerville, New Jersey, 08876, United States
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Robert Wood Johnson University Hospital
New Brunswick, New Jersey, 08901, United States
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Rutgers Cancer Institute of New Jersey
New Brunswick, New Jersey, 08903, United States
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Steeplechase Cancer Center
Somerville, New Jersey, 08876, United States
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Trinitas Hospital and Comprehensive Cancer Center
Elizabeth, New Jersey, 07202, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Can a PI3K inhibitor boost presurgery breast cancer treatment?
- Can a platform trial match the right drug combo to each tumor?
- Can a shorter treatment hold off small HER2-Positive breast cancers?
- Can a Double-Pronged antibody outsmart HER2-Positive tumors?
- Can a vaccine teach the immune system to fight HER2-Positive tumors?
- Can a tailored Pre-Surgery regimen boost complete remission in HER2+ breast cancer?