This research study is looking at tissue samples from women with breast cancer who were treated on clinical trial NCCTG-N9831. Studying samples of tissue from patients with cancer in the laboratory may help doctors learn more about changes that occur in DNA and identify biomarkers related to cancer. It may also help doctors predict how patients will respond to treatment.
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Levels of primary breast tumor protein expression of MYC, IGF-1R, and PTEN assessed using standard immunohistochemical (IHC) procedures
Timeframe: Baseline
Levels of primary breast tumor amplification status of MYC and TOP2A assessed using standard fluorescence in situ hybridization (FISH) assays
Timeframe: Baseline
Levels of primary breast tumor mutation status of PIK3 assessed using molecular digestion followed by HPLC separation
Timeframe: Baseline