1.	Metformin Hydrochloride as First-Line Therapy in Treating Patients With Locally Advanced or Metastatic Prostate Cancer Phase: Phase II Type: Biomarker/Laboratory analysis, Treatment Status: Closed Age: 18 and over Sponsor: Other Protocol IDs: SAKK 08/09, SWS-SAKK-08/09, CDR0000688789, EU-21084, NCT01243385
2.	Phase I Pilot Study of Metformin Hydrochloride And Temsirolimus in Patients With Metastatic or Unresectable Solid Tumors or Lymphoma Phase: Phase I Type: Treatment Status: Completed Age: Over 18 Sponsor: Other, Pharmaceutical / Industry Protocol IDs: CAN-LRCC-UWOREB13877, UWOREB13877, WYETH-CAN-LRCC-UWOREB13877, NCT00659568
3.	The Impact of Obesity and Obesity Treatments on Breast Cancer Phase: Phase I Type: Treatment Status: Completed Age: 18 and over Sponsor: Other Protocol IDs: 2008-0284, NCT00933309
4.	Clinical and Biologic Effects of Metformin in Early Stage Breast Cancer Phase: No phase specified Type: Biomarker/Laboratory analysis, Treatment Status: Completed Age: 18 to 70 Sponsor: Other Protocol IDs: METFORMIN, NCT00897884
5.	Metformin in Castration-Resistant Prostate Cancer Phase: No phase specified Type: Treatment Status: Closed Age: Not specified Sponsor: Other Protocol IDs: 10-244, NCT01215032