Effects of intermittently scanned continuous glucose monitoring on body weight and glycemic variability in overweight individuals with impaired glucose tolerance or mild diabetes: A pilot randomized controlled trial
Abstract
OBJECTIVE
To investigate the effect of visualizing blood glucose variability by intermittently scanned continuous glucose monitoring (isCGM) on weight reduction in overweight individuals with impaired glucose tolerance (IGT) or mild type 2 diabetes mellitus (T2DM).
MATERIALS AND METHODS
Forty overweight (BMI, ≥25 kg/m2) individuals with IGT or T2DM (drug naïve; HbA1c, ≤7.0 %) were included in this 24-week randomized controlled trial. Participants were randomly assigned to the control group (diet and exercise therapy) or the isCGM group (diet and exercise therapy plus isCGM). The primary endpoint was the change in body weight during the 24-week intervention period.
RESULTS
One participant in the isCGM group withdrew consent. We therefore analyzed 19 individuals in the isCGM group and 20 in the control group. Baseline BMI was significantly higher in the isCGM group (35.2 ± 5.7 kg/m²) compared to the control group (31.6 ± 6.8 kg/m²). Weight change in the isCGM and control groups (-1.8 and -2.2 kg) did not differ. However, the change in coefficient of variation (-0.9 and 2.9 %) of sensor glucose differed significantly between the two groups. isCGM scan frequency was positively correlated with time above range (TAR) during the first month, positively correlated with the change in protein intake, and negatively correlated with that in TAR.
CONCLUSION
While isCGM use in overweight individuals with IGT or mild T2DM did not reduce body weight, it might have influence dietary…
How strong is the evidence?
Evidence Hub reads this as a randomized trial, done in people. Its evidence level is 3 of 5 (Moderate · trial / cohort / secondary analysis). Trials without a large randomized design, cohorts and secondary analyses give moderate evidence. Reported size: 19 participants or records.
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