Metformin Hydrochloride in Preventing Breast Cancer in Patients With Atypical Hyperplasia or In Situ Breast Cancer
Status: ACTIVE_NOT_RECRUITING
Study type: INTERVENTIONAL
Conditions: Atypical Ductal Breast Hyperplasia|BRCA1 Mutation Carrier|BRCA2 Mutation Carrier|Ductal Breast Carcinoma in Situ|Lobular Breast Carcinoma in Situ
Interventions: DRUG: metformin hydrochloride|OTHER: placebo
Sponsor: Alliance for Clinical Trials in Oncology
Collaborators: National Cancer Institute (NCI)