Long-Term Feedback Effect of FGM in Newly-Diagnosed T2D Patients

This clinical trial aims to evaluate the educational training of 12-weeks using flash glucose monitoring (FGM) FreeStyle Libre2 (FSL2; Abbott Diabetes Care Inc., Alameda, CA, USA) in newly- diagnosed T2D subjects who are treated with metformin in term of sustained improvement in glycemic variability (TIR) after the discontinuation of FGM compared to self-monitoring of blood glucose (SMBG). This clinical trial also aim to explore which frequency of sensor wear at the diagnosis is more effective in achieving a sustained improvement in TIR after the FGM discontinuation over time.