Z-Endoxifen Hydrochloride in Treating Patients With Metastatic or Locally Recurrent Estrogen Receptor-Positive Breast Cancer
ACTIVE_NOT_RECRUITING
Status
Conditions
- HER2/Neu Positive
- Recurrent Breast Carcinoma
- Stage IIIC Breast Cancer AJCC v7
- Stage IV Breast Cancer AJCC v6 and v7
Interventions
- DRUG: Endoxifen Hydrochloride
- OTHER: Laboratory Biomarker Analysis
- OTHER: Pharmacological Study
- OTHER: Questionnaire Administration
Sponsor
National Cancer Institute (NCI)