Patients with diabetes type 1 with poor glycemic control will be switched to insulin pump and FGM system (Flash Glucose Monitoring) during 6 months, correlated to the hypothesis that they could benefit from this intervention by being reengaged in diabetes self-management.

This is a non-controlled proof of concept prospective pilot study in adults with type 1 diabetes, HbA1c >9% (75 mmol/mol), multi daily insulin injections ( MDI) and who perform less than 2 SMBG /day. Patients will be switched to insulin pump and started a FGM system (Free Style Libre®) during 6 months, hoping this intervention can reengage patients in self-management, reduce HbA1c without increasing the risk of ketoacidocetosis (DKA) and severe hypoglycemia (SH), and keep the DTSQ (Diabetes Treatment Satisfaction Questionnaire) and HFS (Hypoglycemia Fear Scale) at good levels.

Inclusion Criteria:

• adults with type 1 diabetes, aged between 18 and 55, HbA1c >9% (75 mmol/mol), multi daily insulin injections (MDI) treatment, maximum 2 SMBG /day

Exclusion Criteria:

• diabetes with less than 1 year duration, severe active retinopathy requiring laser therapy, severe psychiatric illness, pregnancy, inability to communicate in French, concomitant severe active disease, patients already using a FGM or a CGM