Overview Fulvestrant in Premenopausal Women With Hormone Receptor-Positive Breast Cancer Status: Completed Trial end date: 2007-07-01 Target enrollment: Participant gender: Summary The purpose of this study is to test the effectiveness and safety of fulvestrant in premenopausal women with advanced breast cancer. Phase: Phase 2 Details Lead Sponsor: Dana-Farber Cancer InstituteCollaborators: Beth Israel Deaconess Medical CenterBrigham and Women's HospitalLowell General HospitalMassachusetts General HospitalTreatments: EstradiolFulvestrantHormones