Background: Little is known about real-time continuous glucose monitoring (rt-CGM) in adults with T2D who are not using insulin. We analyzed real-world data to evaluate the association of rt-CGM use and glycemic control in this population.
Methods: Data from US-based adults who reported a T2D diagnosis, age ≥18 years, not using insulin and who first uploaded Dexcom G6 data from the Dexcom app between 9/2021 and 6/2022 were analyzed. Individuals with follow-up data at 3 months and baseline time in range (TIR, 70-180 mg/dL) <70% were included. Outcomes included change in CGM metrics and percentage of users with TIR ≥70% at follow-up.
Results: CGM users (n=3,505) were [mean (SD)] 52.2 (11.2) years of age and 46% female. TIR increased by 16.2 percentage points from 40.2% (21.7) at baseline to 56.4% (28.2) at 3 months (p <0.001), which was largely attributable to reduced hyperglycemia (Table). The proportion of CGM users meeting the consensus target of TIR ≥70% increased from 0% to 37%. Over the course of 3 months, CGM was worn 91.7% of the time. Most CGM users (77.6%) accessed Clarity summary reports of CGM data and most (80.2%) enabled the optional high glucose alert.
Conclusion: In adults with T2D not using insulin and not meeting treatment targets, use of rt-CGM was associated with clinically meaningful improvements in glycemic control. Ongoing use of rt-CGM may result in further improvements in glycemic control.
L.H.Jepson: Employee; Dexcom, Inc., Stock/Shareholder; Dexcom, Inc. J.Welsh: Employee; Dexcom, Inc. C.R.Green: Employee; Dexcom, Inc. R.Thomas: Employee; Dexcom, Inc. J.E.Layne: Employee; Dexcom, Inc., Verily Life Sciences.
Dexcom, Inc.
