Reviewed clinical summary · Source-linked · Educational use only
Does Real-Time Glucose Monitoring Help in Gestational Diabetes?
Clinical Bottom Line
Summary: In pregnant individuals with gestational diabetes mellitus (GDM), real-time continuous glucose monitoring (CGM) significantly increased the percentage of time in range (%TIR) compared to capillary blood glucose (CBG) monitoring, though it was associated with the need for further exploration of its…
Summary:
In pregnant individuals with gestational diabetes mellitus (GDM), real-time continuous glucose monitoring (CGM) significantly increased the percentage of time in range (%TIR) compared to capillary blood glucose (CBG) monitoring, though it was associated with the need for further exploration of its impact on perinatal and neonatal outcomes.
PICO
Description
Key Factor
RCTDiabetes Care · 2025
Real-Time CGM in Gestational Diabetes
RCT · gestational diabetes · 2:1 allocation
Trial design
Proportion reaching endpoint
%TIR (CGM)
93%
60-140 mg/dL
%TIR (CBG)
88%
60-140 mg/dL
Difference
+5 pts
TIR
P value
0.027
significant
⬡ Bottom Line
In GDM, real-time CGM achieved a significantly higher percent time in range (93% vs 88%, P=0.027) than capillary monitoring alone. Effects on perinatal and neonatal outcomes remain to be defined.
P
Population
Pregnant individuals with gestational diabetes mellitus at ≥20 weeks' gestation
I
Intervention
Real-time CGM (Dexcom G6) plus adjunctive capillary blood glucose monitoring
C
Comparator
Capillary blood glucose monitoring alone, four times daily
O
Outcome
Percent time in range (%TIR, 60-140 mg/dL); CGM significantly higher (93% vs 88%, P=0.027)
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