Comparison Between Pioglitazone/Metformin Combination Therapy and Sitagliptin/Metformin Combination Therapy on the Efficacy in Chinese Type 2 Diabetic Adults Insufficiently Controlled with Metformin: Study Protocol of an Open-Label, Multicenter, Non-Inferiority Parallel-Group Randomized Controlled Trial

Figures & data

Figure 1 The flowchart of study design. T2D, type 2 diabetes; wk, week.

Figure 2 The inclusion and exclusion criteria of this study.

Figure 3 The participant timeline in this study. VAT, visceral adipose tissue. *The participants in Chengdu will be assessed by magnetic resonance imaging, while the others assessed by color Doppler ultrasound.

Figure 4 The withdrawal criteria of this study.