This randomized phase I trial studies the side effects and best dose of endoxifen
hydrochloride in treating participants who are undergoing breast surgery. Endoxifen
hydrochloride may treat or reduce the risk of breast cancer.
Intervention
Endoxifen Hydrochloride, Placebo Administration, Questionnaire Administration
Condition
Breast Ductal Carcinoma In Situ, Breast Lobular Carcinoma In Situ, Stage 0 Breast Cancer AJCC v6 and v7, Stage I Breast Cancer AJCC v7, Stage IA Breast Cancer AJCC v7, Stage IB Breast Cancer AJCC v7, Stage II Breast Cancer AJCC v6 and v7, Stage IIA Breast Cancer AJCC v6 and v7, Stage IIB Breast Cancer AJCC v6 and v7, Stage III Breast Cancer AJCC v7, Stage IIIA Breast Cancer AJCC v7, Stage IIIB Breast Cancer AJCC v7, Stage IIIC Breast Cancer AJCC v7
Investigators
Seema A Khan