Gestational diabetes & diabetes in pregnancy
Real-Time Continuous Glucose Monitoring in Pregnancies With Gestational Diabetes Mellitus: A Randomized Controlled Trial
Authors' conclusion
We demonstrated a significantly higher %TIR using real-time CGM compared with CBG glucose monitoring among pregnant people with GDM. Studies are needed to determine if achieving lower CGM glucose levels can improve perinatal and neonatal outcomes.
Study context
- Population
- Pregnant individuals with gestational diabetes mellitus (GDM) and ≥20 weeks' gestation; enrolled February 2021–June 2023
- Participants
- 111 individuals
- Comparison
- Real-time continuous glucose monitoring (CGM) plus adjunctive capillary blood glucose (CBG) vs CBG alone
- CGMn = 74
- CBGn = 37reference
- Primary endpoint
- CGM %TIR defined as 60-140 mg/dL (3.3-7.8 mmol/L)
- Follow-up
- From study enrollment until hospital admission for delivery
Methodological detailsopen-label, single-center, randomized 2:1
- Open-label
- Single-center
- Randomized 2:1
Primary result
As reported in the abstract
%TIR (60-140 mg/dL)
P = 0.027
Further findings
Key secondary CGM metrics
- CGM had significantly higher daytime TIR with lower 24-h and daytime mean glucose and percent time >140 mg/dL vs control
Original publication
Real-Time Continuous Glucose Monitoring in Pregnancies With Gestational Diabetes Mellitus: A Randomized Controlled Trial. Diabetes Care. Published 29 July 2025. doi:10.
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