Overview A Study of the Effects of Inhibiting Platelet Function on Circulating Cancer Cells in Breast Cancer Patients Status: Terminated Trial end date: 2009-09-01 Target enrollment: Participant gender: Summary The purpose of this study is to determine the effects of Plavix and aspirin in women with metastatic breast cancer. Phase: Phase 2 Details Lead Sponsor: Washington University School of MedicineCollaborator: Barnes-Jewish HospitalTreatments: AspirinClopidogrel