Studying Tumor Tissue Samples to Learn More About DNA Changes and Response in Patients With Breast Cancer Treated With Bevacizumab on Clinical Trial ECOG-2100
Status: COMPLETED
Study type: OBSERVATIONAL
Conditions: Breast Cancer
Interventions: GENETIC: gene expression analysis|GENETIC: polymerase chain reaction|GENETIC: polymorphism analysis|OTHER: immunohistochemistry staining method
Sponsor: Eastern Cooperative Oncology Group
Collaborators: National Cancer Institute (NCI)