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J Endocrinol Diabetes Obes. 2015;3(1). pii: 1065. Epub 2014 Dec 31.

Safety and Efficacy of D-Tagatose in Glycemic Control in Subjects with Type 2 Diabetes.

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Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, USA.


The primary objectives of this study were to evaluate the treatment effect of D-tagatose on glycemic control, determined by a statistically significant decrease in hemoglobin A1c (HbA1c), and safety profile of D-tagatose compared to placebo. The secondary objectives were to evaluate the treatment effects on fasting blood glucose, insulin, lipid profiles, changes in BMI, and the proportion of subjects achieving HbA1c targets of <7%. Type 2 diabetic patients not taking any blood glucose lowering medications were administered either 15 g of D-tagatose dissolved in 125-250 ml of water three times a day or placebo with meals. Reduction in HbA1c was statistically significant compared to placebo at all post-baseline time points in the ITT population. Additionally, secondary endpoints were achieved in the ITT population with regard to LDL, total cholesterol, fasting blood glucose, and proportion of subjects achieving HbA1c targets of <7%. D-tagatose was unable to lower triglycerides or raise HDL compared to placebo. A subgroup LOCF analysis on the ITT US population showed a greater and statistically significant LS mean reduction in HbA1c in the D-tagatose group at all post-baseline visits. Based on these results it is concluded that in the ITT population D-tagatose is an effective single agent at treating many of the therapy targets of type 2 diabetes including lowering fasting blood glucose and HbA1c, and lowering of LDL and total cholesterol.


Blood glucose; Cholesterol; HDL; HbA1c; Insulin; LDL; Triglycerides


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