Clinical Research Directory

Inclusion Criteria: * Age\> or equal to 75 years, * Diabetes mellitus diagnosed or Glycated hemoglobin (HbA1c) \> 7% or 2 fasting blood glucose \> to 1.26g/l, * Treated with basal insulin associated or not with metformin (one or two injections per day, in the morning and/or evening before meals) * Subject affiliated or beneficiary of a social security system, * Free consent, informed and signed by the participant or by the surrogate of the patient and the investigator, * Patient in the 4th or higher categories of frailty according to Rockwood . Exclusion Criteria: * Refusal of wearing a continuous glucose monitoring system, * Total autonomy (mobility according to Rosow and Breslau scale, instrumental activities of daily living according to Lawton scale, activities of daily living according to Barthel score), * Treatment with insulinosecretors Dipeptidyl peptidase-4 inhibitor, Glucagon-like peptide-1 analogues, sulfonylurea) or rapid insulin (human or rapid analogue), * Daily dose of basal insulin with change of 20% or more in the last 7 days, * Current treatment with corticosteroids, * Acute pathology in the last 7 days : * Infection treated with antibiotic * New stroke in the last 7 days * Cardio-respiratory decompensation: change in daily dose of diuretics or oxygenotherapy during the last 7 days, * Clinically unstable patients according judgement of investigator, * Behavioural disturbances like Agitation/Aggressivity according the Neuropsychiatric Inventory (NPI), * All people who are under legal protection, * All people who will be not able to finish the follow of the study, * Currently participating in another clinical trial investigating.