Continuous glucose monitoring to diagnose gestational diabetes

The Validity of a Continuous Glucose Monitor in Diagnosing Gestational Diabetes: A Pilot Study

NA · Icahn School of Medicine at Mount Sinai · NCT06858787

A continuous glucose monitor will be tried to see if it can diagnose gestational diabetes in pregnant people between 24 and 32 weeks who receive prenatal care at Mount Sinai.

Quick facts

PhaseNA
Study typeInterventional
Enrollment150 (estimated)
Ages18 Years to 50 Years
SexFemale
SponsorIcahn School of Medicine at Mount Sinai (other)
Locations2 sites (New York, New York and 1 other locations)
Trial IDNCT06858787 on ClinicalTrials.gov

What this trial studies

This is a prospective pilot enrolling pregnant people aged 18–50 with a singleton pregnancy at 24–32 weeks who receive prenatal care and plan delivery at Mount Sinai Hospital or Mount Sinai South Nassau. Participants will be approached during routine prenatal visits, provide informed consent, and wear a continuous glucose monitor while undergoing standard-of-care glucose testing. CGM glucose patterns will be compared with oral glucose tolerance test results and clinical diagnoses to determine whether CGM can identify gestational diabetes. The goal is to learn if CGM could serve as a reliable, less burdensome diagnostic option.

Who should consider this trial

Good fit: Pregnant people aged 18–50 with a singleton pregnancy at 24–32 weeks who receive prenatal care and plan delivery at Mount Sinai and who can tolerate the oral glucose test are ideal candidates.

Not a fit: People with preexisting diabetes, multiple gestation, current steroid use, major fetal anomalies, insufficient prenatal care, or inability to tolerate the oral glucose test are unlikely to benefit from this protocol.

Why it matters

Potential benefit: If successful, CGM could provide continuous, less invasive glucose data that may simplify or reduce the need for the oral glucose tolerance test and improve the convenience and timing of diagnosis.

How similar studies have performed: Prior research has shown CGM can reveal glucose patterns and aid management in pregnancy, but using CGM alone as a diagnostic replacement for the oral glucose tolerance test is relatively novel and still being tested.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Ages 18-50
* Singleton pregnancy between 24-32 weeks gestational age
* Prenatal care and delivery at Mount Sinai Hospital

Exclusion Criteria:

* Multiple fetal gestation
* Preexisting diabetes
* Concurrent use of steroids
* Anomalous fetus
* Insufficient prenatal care (identified as missing half the recommended visits or establishing care after 20 weeks gestation)
* Unable to tolerate oral glucose test

Where this trial is running

New York, New York and 1 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Gestational Diabetes Mellitus

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.