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Effect of Continuous Glucose Monitoring on the Risk of Gestational Diabetes Mellitus in Pregnant Women with Prepregnancy Obesity: A National Multicenter, Prospective, Randomized Controlled Trial

Effect of Continuous Glucose Monitoring on the Risk of Gestational Diabetes Mellitus in Pregnant Women with Prepregnancy Obesity: A National Multicenter, Prospective, Randomized Controlled Trial

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2600130043
Enrollment
Unknown
Registered
2026-08-13
Start date
2026-08-14
Completion date
Unknown
Last updated
2026-08-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Prepregnancy obesity

Interventions

CGM group:Continuous glucose monitoring guided glycemic management plus routine prenatal care

Sponsors

Peking University First Hospital
Lead Sponsor

Eligibility

Sex/Gender
Female
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: 1.Pregnant women with prepregnancy obesity, defined as a body mass index (BMI) >=28.0 kg/m^2 within 3 months before pregnancy; 2.Singleton pregnancy; 3.Gestational age before 14+6 weeks at enrollment; 4.Maternal age >=18 years; 5.Able to receive regular antenatal care, plan to deliver at the study center, and complete study follow-up; 6.Voluntarily agree to participate in the study and provide written informed consent;

Exclusion criteria

Exclusion criteria: 1.Pre-existing diabetes or prediabetes before pregnancy, including impaired fasting glucose or impaired glucose tolerance; 2.Prior use of a continuous glucose monitoring device during the current pregnancy; 3.Severe anemia or other chronic wasting diseases or serious systemic diseases, such as hepatic or renal dysfunction, immune system diseases, or malignant tumors; 4.Bleeding tendency, severe allergy to sensor materials or medical adhesive tape, or a previous condition contraindicating the use of CGM devices; 5.Any other condition that, in the opinion of the recruiting investigator, makes the participant unsuitable for this study or unsuitable for CGM use;

Design outcomes

Primary

MeasureTime frame
Incidence of gestational diabetes mellitus;

Secondary

MeasureTime frame
Glucose levels during the 75 g oral glucose tolerance test in mid-pregnancy;Incidence of preterm birth;Continuous glucose monitoring data;Mode of delivery and cesarean delivery rate;Changes in gut microbiota;Neonatal birth weight and incidence of macrosomia;Gestational weight gain outcomes;Changes in maternal dietary behaviors;Early biomarkers for gestational diabetes mellitus in pregnant women with obesity;Incremental cost-effectiveness ratio;Biomarkers in placenta, umbilical cord blood, and umbilical cord;Incidence of hypertensive disorders of pregnancy;Maternal glucose and lipid metabolic indicators during pregnancy;

Countries

China

Contacts

Public ContactYang Huixia

Peking University First Hospital

yanghuixia688@sina.com+86 10 83573027

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Sep 19, 2026