Efficacy of Sitagliptin and Glibenclamide on the Glucose Variability in Japanese Participants With Type 2 Diabetes Mellitus (MK-0431-355)

MAGE is a popular metric for assessment of major (e.g., postprandial) glucose swings. MAGE is calculated as the average of differences between consecutive glucose peaks and nadirs greater than 1 standard deviation (SD) of 24-hour mean glucose. In this assessment, glucose levels were determined using continuous glucose monitoring (CGM) over 24 hours at Baseline and Day 13; CGM values were further corrected for blood glucose values obtained via participant-administered finger-stick. Least squares (LS) means values were derived from a constrained longitudinal analysis model. A negative (-) change from Baseline to Day 13 indicates improvement of the assessed outcome.

SD is a popular metric for assessment of postprandial glucose swings. The SD of all glycemic excursions over 24 hours (i.e., total of 288 glucose values over 24 hours) was determined for Baseline and Day 13. Original values were obtained using CGM and corrected for blood glucose values obtained via participant-administered finger-stick. LS mean values were derived from a constrained longitudinal analysis model. A negative (-) change from Baseline to Day 13 indicates improvement of the assessed outcome.

The peak postprandial glucose level during the 3 hours post meal minus the preprandial glucose level 1 hour before meal was determined for corrected CGM values at Baseline and Day 13 for breakfast, lunch, and dinner. Meals were standardized with respect to total calories, and protein, fat, and carbohydrate composition as well as timing of administration. CGM values were corrected using a participant-administered finger-stick test for blood glucose. LS mean values were derived from a constrained longitudinal analysis model. A negative (-) change from baseline to Day 13 indicates better control of postprandial glucose.

The mean glucose level over 24-hours at Baseline and Day 13 was determined using CGM values corrected for participant-administered finger-stick values. LS mean values were derived from a constrained longitudinal analysis model. A negative (-) change from Baseline to Day 13 indicates improvement of the assessed outcome.

Hypoglycemia, defined as low blood glucose, is a common side effect of medications used to treat diabetes mellitus type 2. The percentage of hypoglycemic corrected CGM readings (sensor glucose <70, <60, <50 mg/dL) over a 24-hour period were determined at baseline and Day 13. CGM values were corrected using a participant-administered finger-stick test for blood glucose. LS mean values were derived from a constrained longitudinal analysis model. A negative (-) change from baseline to Day 13 indicates improvement in occurrence of hypoglycemia.