Postpartum Glycemia in Women At Risk for Persistent Hyperglycemia

NCT ID: NCT04521712

Last Updated: 2024-12-18

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

40 participants

Study Classification

INTERVENTIONAL

Study Start Date

2021-09-17

Study Completion Date

2024-12-10

Brief Summary

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GDM is characterized by decreased insulin sensitivity, decreased insulin secretion, or a combination of both. Women with GDM are at significant risk for overt T2DM later in life, and postpartum insulin sensitivity and secretion in women with GDM has not been quantified, limiting our ability to optimize screening for overt T2DM. In addition, compliance with currently recommended postpartum T2DM screening by OGTT is poor. Quantification of postpartum insulin sensitivity and secretion in women at high risk for T2DM will inform strategies to improve diagnostic strategies. Continuous glucose monitoring (CGM) is a new technology that may be useful to identify women with persistent hyperglycemia. Understanding maternal glycemia and physiology that drives glycemia in the postpartum period is limited. Completion of this study will define postpartum maternal glycemia, quantify insulin secretion versus insulin sensitivity defects, and demonstrate the feasiblity of using continuous glucose monitoring to identify women most at risk for overt T2DM.

Detailed Description

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Conditions

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Gestational Diabetes

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

DIAGNOSTIC

Blinding Strategy

NONE

Study Groups

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Postpartum GDM

Women with GDM diagnosed early (\< 20 weeks gestation) or with routine 3rd trimester screening (\>=24 weeks) will be enrolled in this longitudinal study. All enrolled women will complete a oral glucose tolerance test and wear a continuous glucose monitor for 10 days at the 3 designated study time points (0-4 days, 4-6 weeks, and 6 months after delivery).

Group Type EXPERIMENTAL

2-hour 75-g oral glucose tolerance test and Dexcom G6 Pro continuous glucose monitor

Intervention Type DIAGNOSTIC_TEST

All women enrolled in this study will have a 2-hour 75-g oral glucose tolerance test performed immediately postpartum (within 4 days of delivery), at 4-6 weeks postpartum, and at 6 months postpartum. Enrolled women will also wear a continuous glucose monitor for 10 days at each of these time periods. Both women and their infants will have skin fold thickness measured at each of these 3 study visits to estimate body fat composition. Additionally umbilical cord blood and placental biopsies will be collected at delivery and stored for future research.

Interventions

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2-hour 75-g oral glucose tolerance test and Dexcom G6 Pro continuous glucose monitor

All women enrolled in this study will have a 2-hour 75-g oral glucose tolerance test performed immediately postpartum (within 4 days of delivery), at 4-6 weeks postpartum, and at 6 months postpartum. Enrolled women will also wear a continuous glucose monitor for 10 days at each of these time periods. Both women and their infants will have skin fold thickness measured at each of these 3 study visits to estimate body fat composition. Additionally umbilical cord blood and placental biopsies will be collected at delivery and stored for future research.

Intervention Type DIAGNOSTIC_TEST

Eligibility Criteria

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Inclusion Criteria

* Live singleton gestation with no fetal anomalies at 34-40 weeks gestation
* Gestational diabetes mellitus identified at \< 20 weeks' gestation requiring pharmacologic treatment (class A2)


* Live singleton gestation with no fetal anomalies at 34-40 weeks gestation
* Gestational diabetes mellitus identified at \>= 24 weeks' gestation requiring pharmacologic treatment (class A2)

Exclusion Criteria

* History of prediabetes or polycystic ovarian syndrome
* History of pregestational type 2 diabetes mellitus
* Skin conditions which prevent wearing a continuous glucose monitor


* History of prediabetes or polycystic ovarian syndrome
* History of pregestational type 2 diabetes mellitus
* Skin conditions which prevent wearing a continuous glucose monitor
Minimum Eligible Age

18 Years

Maximum Eligible Age

45 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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University of North Carolina, Chapel Hill

OTHER

Sponsor Role collaborator

University of Alabama at Birmingham

OTHER

Sponsor Role lead

Responsible Party

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Ashley N. Battarbee

Assistant Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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University of Alabama at Birmingham

Birmingham, Alabama, United States

Site Status

University of North Carolina at Chapel Hill

Chapel Hill, North Carolina, United States

Site Status

Countries

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United States

References

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Other Identifiers

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300005510

Identifier Type: -

Identifier Source: org_study_id