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Continuous Glucose Monitor Use in Pregnancy

Continuous Glucose Monitor Use and Perinatal Outcomes Among Pregnant Women With Type 2 Diabetes Mellitus: A Randomized Controlled Trial

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05317585
Enrollment
180
Registered
2022-04-08
Start date
2024-05-23
Completion date
2027-07-01
Last updated
2026-08-03

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

Conditions

Pregnancy, High Risk, Type 2 Diabetes Treated With Insulin

Keywords

Type 2 diabetes, Pregnancy

Brief summary

The purpose of this study is to perform a randomized controlled trial among 180 pregnant women with type 2 diabetes mellitus (T2DM) comparing continuous glucose monitor (CGM) use to the standard of care of multiple daily fingerstick glucose monitoring and its impact on large for gestational age infants, maternal glycemic control, patient satisfaction, and additional adverse perinatal outcomes.

Detailed description

A continuous glucose monitor (CGM) can provide detailed insight into daily glucose fluctuations and individual glucose patterns, and it is advised for patients with type 1 diabetes mellitus and advanced type 2 diabetes mellitus (T2DM). Despite this recommendation, pregnant women are not receiving the same standard of care. It has been studied minimally in pregnant women with T2DM, despite preliminary studies showing improvement in adverse perinatal outcomes and glycemic control among pregnant women with type 1 diabetes. Therefore, there is a paucity of data regarding CGM use among pregnant women with T2DM, and significant potential to reduce the significant multigenerational effects associated with diabetes in pregnancy with this technology. The study team therefore propose to perform a randomized controlled trial among 180 pregnant women with T2DM comparing CGM use to the standard of care of multiple daily fingerstick glucose monitoring and its impact on large for gestational age infants, maternal glycemic control, patient satisfaction, and additional adverse perinatal outcomes.

Interventions

DEVICEContinuous Glucose Monitor

Continuous Glucose Monitor

DEVICERoutine Capillary Blood Glucose Monitoring (Fingerstick Glucose)

Routine Capillary Blood Glucose Monitoring (Fingerstick Glucose)

Sponsors

University of Massachusetts, Worcester
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
NONE

Intervention model description

This is a prospective, single center, randomized study evaluating pregnancy glycemic monitoring strategies between women with continuous glucose monitors and standard of care fingerstick glucose monitoring.

Eligibility

Sex/Gender
FEMALE
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Women will be deemed eligible for the study by the following inclusion criteria: * 1\) age greater than or equal to 18 years old * 2\) singleton gestation less than or equal to 14 weeks at initial obstetric visit * 3\) established diagnosis of T2DM by laboratory criteria including hemoglobin A1c ≥6.5%, oral glucose tolerance test ≥200 mg/dL, or fasting plasma glucose ≥126 mg/dL * 4\) receiving prenatal care at UMASS Memorial Health Care (UMMHC) and plans to deliver at UMMHC * 5\) able and willing to provide informed consent

Exclusion criteria

Women will be deemed ineligible for the study based on the following

Design outcomes

Primary

MeasureTime frameDescription
Large for Gestational Age InfantWithin 2 hours of birthThe neonatal birthweight will be used to calculate large for gestational age size based on the gestational age at delivery.

Secondary

MeasureTime frameDescription
Third Trimester Hemoglobin A1cBetween 28 weeks and deliveryThird Trimester Hemoglobin A1c
Mode of DeliveryAt deliveryMode of delivery (vaginal versus cesarean)
Hypertensive Disorders of PregnancyAfter 20 weeks of gestation until deliveryDevelopment of gestational hypertension or pre-eclampsia after 20 weeks of gestation
Preterm BirthAt deliveryPreterm birth (delivery less than 37 weeks gestation)
Number of participants with a shoulder dystociaAt deliveryNumber of participants with a shoulder dystocia
Neonatal Intensive Care Unit Admission (NICU)At delivery and within first 2 days of lifeNeonatal Intensive Care Unit Admission (NICU)
Neonatal Respiratory DistressAt deliveryNeonatal Respiratory Distress requiring respiratory support
APGAR less than 7 at 5 minutes of life5 Minutes after DeliveryAPGAR score less than 7 at 5 minutes of life
Number of participants with neonatal hypoglycemiaWithin 2 hours of birthNumber of participants with neonatal hypoglycemia as defined by first neonatal blood sugar obtained within 2 hours of birth
Gestational age at deliveryAt DeliveryGestational age at delivery
Maternal Patient Satisfaction Survey with Glucose Monitoringpostpartum day 1 after deliveryThis will be assessed by the glucose monitoring satisfaction survey (GMSS) version 2. Participants will complete the survey, which contains 4 subscales and a total score. The subscales assess openness, emotional burden, behavioral burden, and worthwhileness. The higher the score the greater the satisfaction, with a total maximum score 75.

Countries

United States

Contacts

CONTACTGianna L Wilkie, MD
Gianna.Wilkie@umassmemorial.org7743642523
CONTACTHeidi Leftwich, DO
Heidi.Leftwich@umassmemorial.org
PRINCIPAL_INVESTIGATORGianna L Wilkie, MD

University of Massachusetts, Worcester

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 4, 2026