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Diabetes, GestationalNCT02668601

Maternal GDM in Hispanic Youth: Risk for Obesity

An observational study of Diabetes, Gestational and Obesity, run by University of Southern California.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Our studies are aimed at examining effects of intrauterine exposure to GDM on metabolic risks in Hispanic children. Our primary hypothesis predicts that intrauterine exposure to GDM will be associated with one or more of three critical factors involved in the development of diabetes: 1) increased adiposity, 2) insulin… Read more about this study

Who is it for?
Ages 4 to 18 yearsHealthy volunteers can take part
Conditions the study is for
Diabetes, Gestational, Obesity, Insulin Resistance
How many people
240 participants
Where
No sites listed yet
Study dates
Aug 2010to 1 Jan 2018
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 4 to 18 years
  • All sexes
  • Healthy volunteers accepted
  • Child, Adult

Study population: GDM exposed and non-exposed Hispanic offspring of singleton pregnancies between the ages of 4 to 18 years old. Offspring are the children of women with a history of GDM or with normal glucose levels during pregnancy who participated in the BetaGene Study. Normal glucose levels during pregnancy are defined as 1-hour 50g glucose challenge test <120 mg/dl. GDM diagnosis is defined as two or more abnormal values on 3-h 100-g diagnostic OGTT. GDM defined by American Diabetes Association Criteria in place from 2003-2008.

Who may be able to join

  • Offspring between the ages of 4 and 18 years old who were born to women who participated in the BetaGene Study.

Who cannot join

  • Offspring < 4 or > 18 years of age;
  • gestation < 36 weeks at birth;
  • significant medical illness and/or current use of medication known to influence glucose tolerance or BMI.

About this study

Official title: Maternal Gestational Diabetes in Hispanic Youth: Obesity and Insulin Resistance

Our studies are aimed at examining effects of intrauterine exposure to GDM on metabolic risks in Hispanic children. Our primary hypothesis predicts that intrauterine exposure to GDM will be associated with one or more of three critical factors involved in the development of diabetes: 1) increased adiposity, 2) insulin resistance, and 3) decreased beta cell function in Hispanic children when compared to non-exposed children matched for ethnicity, age, gender, and Tanner stage. In a subset of this cohort, we will also examine the effects of intrauterine exposure to gestational diabetes on the brain pathways that regulate appetite and body weight in children ages 6 to 15 years old.

Read the detailed description

Obesity rates have increased dramatically over the last two decades, particularly in children. Obesity is a major risk factor for type 2 diabetes (T2D), and there is a disproportionate prevalence of obesity and T2D in people of Hispanic origin. While a number of factors contribute to the development of obesity and T2D there is compelling evidence suggesting a profound role of the diabetic in utero environment. Epidemiological studies show that exposure to maternal diabetes in utero is associated with a significant risk of developing obesity and diabetes later in life. Provocative studies in animal models suggest that metabolic imprinting resulting from exposure to the altered metabolic milieu of diabetes in pregnancy leads to abnormalities in the development of specific fetal tissues, including the hypothalamus and pancreatic islets. Based on these findings, the goal of this research is to test the hypothesis that exposure to maternal gestational diabetes mellitus in utero results in changes during intrauterine development that mediate increased risk for obesity and diabetes. Through our ongoing studies on the genetics of type 2 diabetes we have access to hundreds of Hispanic offspring of well characterized GDM and control mothers. We are, therefore, in the unique position to perform mechanistic studies examining effects of intrauterine exposure to GDM on metabolic risks in Hispanic children and adolescents. Our primary hypothesis predicts that intrauterine exposure to GDM will be associated with one or more of three critical factors involved in the development of diabetes: 1) increased adiposity, 2) insulin resistance, and 3) decreased beta cell function in Hispanic children when compared to non-exposed children matched for ethnicity, age, gender, and Tanner stage.

To examine the effects of exposure to GDM on brain pathways involved in the regulation of energy homeostasis, we will perform additional functional magnetic resonance imaging (fMRI) studies in a subset of the larger cohort.

Keywords
Gestational Diabetes Mellitus, Childhood Obesity, Offspring
Medical subject headings
Diabetes, Gestational, Obesity, Insulin Resistance, Pediatric Obesity

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT02668601
Study groupRoleWhat they receive
GDM ExposedChildren exposed to gestational diabetes in utero
Non-GDM ExposedChildren not exposed to gestational diabetes in utero

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Adiposity

    BMI (z-score) and total body fat

    Measured: Day 1

  2. insulin sensitivity

    OGTT

    Measured: Day 2

  3. insulin secretion

    OGTT

    Measured: Day 2

  4. hypothalamic CBF

    fMRI

    Measured: Day 3

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted29 Jan 2016 (estimated)
  2. Study startAug 2010
  3. Primary completion1 Jan 2018
  4. Study completion1 Jan 2018

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case-control
Time perspective
Retrospective
Enrolment
240 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02668601
Sponsor's protocol ID
HS-10-00465
Status last verified
Apr 2019
First submitted
11 May 2015
Last updated
16 Apr 2019
Results posted
No
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

An observational study of Diabetes, Gestational and Obesity, run by University of Southern California.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 16 Apr 2019. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Adiposity (time frame: Day 1). The study lists 4 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 16 Apr 2019.

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