Overview Metformin With Neoadjuvant Chemoradiation to Improve Pathologic Responses in Rectal Cancer Status: Completed Trial end date: 2019-06-26 Target enrollment: Participant gender: Summary This study is a phase II, single arm, controlled, open label internal pilot. Phase: Phase 2 Details Lead Sponsor: Sunnybrook Health Sciences CentreCollaborators: Sunnybrook Research InstituteUniversity of TorontoTreatments: Metformin