Biomarkers in Predicting Response to Tamoxifen and Letrozole in Postmenopausal Women With Primary Breast Cancer Treated on Clinical Trial CAN-NCIC-MA17
Status: UNKNOWN
Study type: OBSERVATIONAL
Conditions: Breast Cancer
Interventions: GENETIC: microarray analysis|GENETIC: polymerase chain reaction|GENETIC: protein expression analysis|OTHER: diagnostic laboratory biomarker analysis|OTHER: fluorescent antibody technique|OTHER: immunohistochemistry staining method|OTHER: immunologic technique
Sponsor: Massachusetts General Hospital
Collaborators: National Cancer Institute (NCI)