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Effects of Intermittently Scanned Continuous Glucose Monitoring in Adult Type 1 Diabetes Patients with Suboptimal Glycemic Control: A Multi-Center Randomized Controlled Trial
Journal article   Peer reviewed

Effects of Intermittently Scanned Continuous Glucose Monitoring in Adult Type 1 Diabetes Patients with Suboptimal Glycemic Control: A Multi-Center Randomized Controlled Trial

Jinhua Yan, Yongwen Zhou, Xueying Zheng, Mao Zheng, Jing Lu, Sihui Luo, Daizhi Yang, Hongrong Deng, Wen Xu, Yan Bi, …
Diabetes/metabolism research and reviews, Vol.39(4), e3614
05/2023
DOI: 10.1002/dmrr.3614
PMID: 36670050

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Abstract

To investigate whether intermittently scanned continuous glucose monitoring without alarms (isCGM) improves glycemic control over capillary blood glucose monitoring (BGM) among adult type 1 diabetes mellitus (T1DM) patients with suboptimal control. Adults with T1DM and HbA1c between 7% and 10% were 1:1 randomized to use isCGM or BGM for 24 weeks. The primary outcome was the change in HbA1c after intervention. The secondary outcomes were the change in sensor-derived metrics. A total of 104 adults with T1DM (34.2±12.2 years; M/F, 38/66) were randomized to isCGM group (n=54) and BGM group (n=50). After 24 weeks, HbA1c significantly decreased in isCGM group (8.1±0.7% to 7.5±1.0 %) and BGM group (8.0±0.8% to 7.7±1.0%), with between-group difference as 0.3% (95% CI, 0.0% to 0.6%; P=0.04). Percentage of HbA1c reduction over 1.0% and 1.5% was significantly higher in isCGM group, with adjusted odd ratios of 2.5 (95% CI: 1.1 to 5.5; P=0.03) and 3.2 (95% CI: 1.1 to 9.0; P=0.03). Mean time-in-range 70-180 mg/dL (TIR) in isCGM group significantly increased (from 58.5±13.0% to 63.0±12.6%), while mean TIR was similar in BGM group (from 58.0±14.6% to 57.5±14.5%). Time spent in hyperglycemia reduced more in isCGM group and time spent in hypoglycemia did not change significantly in both groups. Among adult T1DM patients with suboptimal glycemic control, compared with BGM, isCGM use resulted in a statistically significant improvement in glycemic control after 24-week intervention. This article is protected by copyright. All rights reserved.
Type 1 Diabetes Glycemic Control Adult(s) Continuous Glucose Monitoring (CGM) Randomized Clinical Trial

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