Continuous glucose monitoring during late pregnancy and after delivery for gestational diabetes
Official title: Pregnancy and Postpartum Continuous Glucose Monitoring in Gestational Diabetes
Run by Icahn School of Medicine at Mount Sinai · NCT07174245 · Data updated 2026-11-12
This study will collect Dexcom G7 glucose data from people with gestational diabetes during the third trimester and for two weeks after birth to see if those patterns predict an abnormal 6‑week postpartum oral glucose tolerance test.
Quick facts
| Study type | Observational |
|---|---|
| Ages | 18 Years and up |
| Sex | Women only |
| Enrollment | 40 (estimated) |
| Sponsor | Icahn School of Medicine at Mount Sinai Academic / other |
| Locations | 1 site (New York, New York) |
| Status | Recruiting |
| Started | August 5, 2025 |
| Main results expected | July 1, 2027 |
| Study ends | July 1, 2027 |
| Registry record updated | July 8, 2026 |
| Trial ID | NCT07174245 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults (age 18+) with a current diagnosis of gestational diabetes who are prescribed and using a Dexcom G7 are ideal candidates.
✕Probably not a fit
People with pregestational diabetes, those not using a Dexcom device, those with adhesive allergies preventing CGM use, or those on chronic oral steroids are unlikely to qualify or benefit from this specific protocol.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
Pregnant people with a diagnosis of gestational diabetes who are prescribed a Dexcom G7 will continue using their device during the third trimester and wear one sensor for up to 14 days postpartum. Researchers will analyze CGM glucose patterns and compare them to each participant's standard-of-care 6‑week postpartum oral glucose tolerance test result and a remote questionnaire. This is an observational protocol with no experimental treatments, and clinical care remains under the participant's usual providers. The aim is to find glucose pattern predictors of abnormal postpartum glucose tolerance.
Why it matters
Potential benefit: If successful, this approach could help identify patients at higher risk of persistent abnormal blood sugar after pregnancy so follow-up and interventions can be targeted sooner.
How similar studies have gone: CGM has been used in pregnancy to track glucose and guide management, but applying third‑trimester and immediate postpartum CGM data specifically to predict 6‑week OGTT results is a relatively new and only preliminarily studied approach.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Diagnosis of gestational diabetes during current pregnancy * age 18 or older * prescribed Dexcom G7 Exclusion Criteria: * Pregestational diabetes * known skin adhesive allergy which inhibits ongoing use of CGM * chronic oral steroid use.
Where it's running
-
Icahn School of Medicine at Mount Sinai
New York, New York, United States Recruiting
Study contacts
- Principal investigator: Grenye O'Malley, MD — Icahn School of Medicine at Mount Sinai
- Study coordinator: Sarah Rancic
- Email: sarah.rancic@mssm.edu
- Phone: 212-241-5355
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.