Overview Dimethyldiguanide Combined With Aromatase Inhibitor (AI) in Metastatic Breast Cancer Status: Completed Trial end date: 2016-07-01 Target enrollment: Participant gender: Summary The addition of dimethyldiguanide might increase the efficacy of AI treatment in metastatic breast cancer. Phase: Phase 2 Details Lead Sponsor: Xichun HuTreatments: Aromatase InhibitorsExemestaneLetrozole