HER2-positive Breast Cancer
Conditions
Brief summary
This study is the spatial transcriptomic approach for revealing the resistance mechanism of trastuzumab deruxtexan in HER2 positive breast cancer patients.
Interventions
1. List of HER2 positive breast cancer * Stage IV disease * Treated with T-Dxd * Available FFPE samples 2. Prepare tissue for digital spatial proteomics * FFPE/H&E slide * Region of Interest(ROI) check * Make a Tissue microarray * Prepare special slide for GeoMx 3. GeoMx data analysis with clinical outcome
Sponsors
Study design
Eligibility
Inclusion criteria
* HER2 positive breast cancer * Stage IV disease * Treated with T-Dxd * Available FFPE samples
Exclusion criteria
* TNBC breast cancer * Hormone receptor positive breast cancer * Non-available FFPE samples * Treated except T-Dxd
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Spatial transcriptomic analysis | Before chemotherapy, curative surgery | Protein expression and relationship protein-protein in HER2 positive breast cancer tumor cells and tumor microenvironment. |
Countries
South Korea