Study of Glucose Tolerance Abnormalities Using Continuous Glucose Monitoring for the Identification of Early Loss of Pancreatic Islet Graft Function.

Inclusion Criteria: * ≥18 years old * Insulin-dependent diabetes (type 1 diabetes, secondary to chronic pancreatitis, MODY, cystic fibrosis) * Patient who has completed a full cycle of pancreatic islet transplantation, either: * Islet Transplantation Alone (ITA), or * Islet After Kidney (IAK), or * Simultaneous Islet Kidney (SIK), with \>10,000 IEQ/kg of recipient body weight, or \<10,000 IEQ/kg but having achieved insulin independence * Patient who has provided consent for reuse of their data for this research Exclusion Criteria: * Patient refusal to wear continuous glucose monitoring device * Pancreatic islet autotransplantation * Inability to provide informed consent (e.g., difficulties understanding study information) * Patient under judicial protection (safeguard of justice) * Patient under guardianship or curatorship