# 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

> clinical trial · VERIFIED · 2026-07-23

Status: NOT_YET_RECRUITING · Sponsor: National Cancer Institute (NCI) · Condition: Breast Cancer

- Company: National Cancer Institute (NCI)
- Sector: Breast Cancer
- Primary source: https://clinicaltrials.gov/study/NCT07619534

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