Objective
(FPI), postprandial plasma insulin (PPI), homeostasis model assessment index (HOMA index), lipid profile with lipoprotein (a) [Lp(a)], fibrinogen (Fg), plasminogen activator inhibitor-1 (PAI-1), tissue plasminogen activator (t-PA), homocysteine (Hcy), systolic blood pressure (SBP), diastolic blood pressure (DBP).Results After 9 months of treatment, both tested drug combinations were similarly associated with a significant reduction in FPG (nateglinide, glibenclamide, both p<0.05) p<0.01), p<0.01, p<0.05), p< 0.05); the glibenclamide group, showed a significant reduction in HbA1c p<0.05), p< 0.05), p<0.05), and HOMA index (-23.9%, p<0.05) but to a minor extent. Moreover, the HbA1c difference value from baseline observed in the nateglinide-treated group was significantly higher than that observed in the glibenclamide group. Therefore the nateglinide-treated patients showed a significant reduction in some prothrombotic parameters all p<0.05), whereas the glibenclamide-treated patients did not. Conclusion Nateglinide appears to improve glycemic control as well as the levels of some prothrombotic parameters compared to glibenclamide when administered in combination with metformin.