Overview Metformin Plus Irinotecan for Refractory Colorectal Cancer Status: Unknown status Trial end date: 2020-12-01 Target enrollment: Participant gender: Summary MetIri seeks to identify if metformin combined to irinotecan can improve tumor control. Phase: Phase 2 Details Lead Sponsor: Barretos Cancer HospitalCollaborators: AC Camargo Cancer CenterUniversity of Campinas, BrazilTreatments: CamptothecinIrinotecanMetformin