Data Acquisition Study in Inadequately Balanced Patients With Type 2 Diabetes Mellitus

Inclusion Criteria: * Type 2 diabetic patient (T2D) with HbA1c ≥ 8% in the month prior to inclusion * Patient is treated with oral anti-diabetics and / or analogous combined with basal insulin therapy (1 injection of slow-acting insulin in the evening) * Age ≥ 35 years * Diabetes diagnosis done over 1 year ago * Patient accepting for 2 periods of 14 days spaced at most 3 days to wear a Freestyle glucose meter, a bracelet for measuring physical activity and to log daily life events in a dedicated smartphone application * Patient is able to use a smartphone * Patient is affiliated to the French health insurance system Exclusion Criteria: * Patient has Type 1 diabetes, diabetes secondary to pancreatic pathology, endocrinopathy or iatrogenic diabetes * Patient is treated with a rapid-acting insulin * Patient has had a severe hypoglycaemia in the year preceding inclusion * Patent has a severe renal insufficiency (defined by a Glomerular Filtration Rate below 30 ml/min) * Patient has had a myocardial infarction or other life-threatening medical condition in the last 6 months * Patient has cognitive disorders or evolutionary psychiatric pathology * Pregnant woman or woman likely to be pregnant, breastfeeding woman * Patient plans to travel outside europe during the study * Patient is participating to another clinical study