Reducing inpatient hypoglycemia in the general wards using real-time CGM- the Glucose Telemetry system: A randomized clinical trial
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RESEARCH DESIGN AND METHODS: In a randomized clinical trial, insulin-treated patients at high risk for hypoglycemia with type 2 diabetes were recruited. Participants were randomized to RT-CGM/GTS or point of care (POC) blood glucose testing. The primary outcome was difference in inpatient hypoglycemia.
RESULTS: Seventy-two participants were included in this interim analysis, 36 in the RT-CGM/GTS group and 36 in the POC group. RT-CGM/GTS group experienced fewer hypoglycemic events (<70 mg/dL) per patient (0.67 events per patient, 95% CI 0.34-1.30 versus 1.69 events per patient, 95% CI 1.11-2.58, p=0.024) and fewer clinically significant hypoglycemic events (<54 mg/dL) per patient (0.08 events per patient, 95% CI 0.03-0.26 versus 0.75, 95% CI 0.51-1.09, p=0.003). RT-CGM/GTS had lower percentage of time spent below range <70 mg/dl (0.40%, 95% CI 0.18%-0.92% versus 1.88%, 95% CI 1.26%-2.81%, p=0.002) and <54 mg/dL (0.05%, 95% CI 0.01%-0.43% versus 0.82%, 95% CI 0.47%-1.43%, p=0.017) compared to POC group. No differences in nocturnal hypoglycemia, time in range 70-180 mg/dL, time above range >180-250 mg/dL and >250 mg/dL were found between the groups. RT-CGM/GTS group had no prolonged hypoglycemia compared to 0.20 episodes <54mg/dL and 0.40 episodes <70mg/dL per patient in the POC group.
CONCLUSIONS: RT-CGM/GTS can decrease hypoglycemia among hospitalized high risk insulin treated patients with type 2 diabetes.