Estimating Insulin Sensitivity in Pregnancies With Type 1 Diabetes

Enrolling by invitation

Conditions studied: Pregnancy, Type 1 Diabetes (T1D)

In brief

The investigators want to learn how the body's response to insulin changes during pregnancy in people with Type 1 Diabetes. In this study, the investigators will look at information from people who used a Dexcom continuous glucose monitor (CGM) and a Tandem insulin pump while they were pregnant. Participants will fill out an online survey and agree to share their device data. The investigators will use this information to see how insulin sensitivity changes from three months before pregnancy to six months after the baby is born.

Key facts

Study ID

NCT07351318

Run by

University of Virginia

People needed

100

Starts

2026-02-01

Expected to finish

2027-03-01

Last updated by the study team

2026-03-02

Who can join

Age: 18 and older. Sex: female. Healthy volunteers: not accepted.

You may qualify if…

• Age >=18 years old
• Pregnant within the last 8 years
• Diagnosed with type 1 diabetes for at least one year at the time of pregnancy
• Use of a Dexcom CGM system (Dexcom, Inc., CA) and Tandem insulin infusion pump (Tandem Diabetes Care, CA) across gestation, and willing to share data from this pregnancy with study staff.

Where it is running

• Northwestern Memorial Hospital — Chicago, Illinois, United States
• UVA Health — Charlottesville, Virginia, United States

Full record on ClinicalTrials.gov

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