Recurrent Breast CarcinomaStage III Breast Cancer AJCC v7Stage IIIA Breast Cancer AJCC v7Stage IIIB Breast Cancer AJCC v7Stage IIIC Breast Cancer AJCC v7Stage IV Breast Cancer AJCC v6 and v7
This randomized phase II trial studies how well tamoxifen citrate works compared with z-endoxifen hydrochloride in treat…