Collection of CSF Samples From Participants With Metastatic Triple Negative Breast Cancer (TNBC) and HER2+ Breast Cancer With no Prior History Nor Active Radiographically Detectable Brain Metastases

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This is not medical advice. AI-assisted translation — inaccuracies may occur. Always verify the original and consult your oncologist before taking any steps.

About the trial

Background: Breast cancer is the most common cancer among women. It can often spread to the liver, lungs, bones, or brain. Breast cancer that spreads to the brain is often fatal. Researchers want to know if tumor DNA found in spinal fluid, blood, or tumor tissue can help predict when the cancer will spread to the brain. They want to collect these fluid and tissue samples for research. Objective: To collect spinal fluid and other samples from people with breast cancer that has spread to other parts of the body. Eligibility: People aged 18 years and older with HER2-positive or triple negative breast cancer. The cancer must have spread to other parts of the body but not to the brain. Design: Participants will be screened. They will have blood tests to assess kidney function. They will have an imaging scan of the brain. Participants will come to the NIH clinic to have their samples collected: * Spinal fluid. A thin needle will be inserted into the lower back to draw out a sample of fluid from the space around the spinal cord. A physical exam and blood tests will be done to make sure it is safe for participants to have this procedure. * Blood. * Saliva or cheek swabs. They will rub a cotton swab inside of their mouth. * Tumor samples. If participants have had samples of tumor tissue (biopsies) collected in the past, leftover tissue may be used for this study. Participants will be contacted for follow-up every 6 months for 3 years. They may return once a year to provide further samples.

Original English text from ClinicalTrials.gov

Who can (and can't) join

✓ Qualifies

  • •Wiek 18 lat lub więcej
  • •Potwierdzona diagnoza raka piersi typu HER2-dodatni lub potrójnie ujemny
  • •Rak rozprzestrzeniał się na inne części ciała
  • •Zdolność do poddania się punkcji lędźwiowej i rezonansowi magnetycznemu mózgu
  • •Prawidłowa funkcja nerek (kreatynina poniżej 1,5-krotności normy)

✗ Disqualifies

  • •Przerzuty do mózgu widoczne w rezonansie magnetycznym
  • •Poprzednia historia innych typów raka (poza usuniętymi zmianami skóry)
  • •Ciąża

Simplified criteria — AI translation

Trial details

Minimum age
18 Years
Maximum age
120 Years
Last updated (source)
October 9, 2026
Sex
No restrictions

Therapies / drugs in trial

Locations (1)

National Institutes of Health Clinical Center

Bethesda, United States

Trial contact

Contact information from ClinicalTrials.gov. Contact in English.

Share this trial

Data from ClinicalTrials.gov. AI-assisted translation, last sync: 9/12/2026.

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