Observational Cohort Study Evaluating the Effectiveness of an Education Program (NGAYDAUTIEN) in Combination With Gliclazide MR in the Management of Uncontrolled Type 2 Diabetic Patients.

Inclusion Criteria: 1. Aged at least 18 years (without upper limit of age) 2. HbA1c value is required at the baseline visit 3. Patients with diagnosis of uncontrolled T2D 4. Initiation of a new OAD as monotherapy or on top of metformin 5. Patient follow-up within the scope of the current medical practice and in the same health center during the 6-month period. Exclusion Criteria: 1. Diagnosis of diabetes other than T2D 2. HbA1c value not available at baseline 3. Patients who previously attended to the NDT educational program for T2D management 4. Required at baseline an insulin therapy according to national guideline 5. Used any other OAD (except metformin) 6. Used a single pill combination in addition to the medicine of interest 7. Have a severe disease (i.e. cirrhosis, end stage renal disease…) 8. Are unlikely to cooperate in the study or to follow the educational program