Biomarkers During Pregnancy

August 14, 2026 updated by: Washington University School of Medicine

Alternate Biomarkers for Better Management of Diabetes During Pregnancy and Prediction of Neonatal Complications in Pregnant Women With Diabetes

This study aims to obtain preliminary data for utility of alternate biomarkers for monitoring glucose control in diabetic women during pregnancy and/or predicting risk of adverse neonatal events in these women.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

This study aims to obtain preliminary data for utility of alternate biomarkers for monitoring glucose control in diabetic women during pregnancy and/or predicting risk of adverse neonatal events in these women. Our population is unique compared to published studies and contains significant numbers of African American women and overweight or obese women. Two of these markers have been examined in several other populations of pregnant women and have shown utility for both outcomes. However, the recommended levels of these markers need to be determined in specific populations as ethnicity and BMI affect the values. Values obtained in recruited women will be compared with biobank samples from women who have no evidence or history of diabetes. Additionally, two other potentially promising markers will be examined (beta-hydroxybutyrate and triglycerides). Both these analytes change during pregnancy and beta-hydroxybutyrate has shown correlation with large for gestational status or macrosomia in some studies. A combination of markers may be a better predictor of adverse neonatal outcomes than a single marker.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
47

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Missouri
      • St Louis, Missouri, United States, 63110
        • Washington University in St Louis

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

14 years to 48 years (Child, Adult)

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

Our study population includes a large percentage of African Americans as well as a significant percentage of women with BMI ≥30. All women enrolled in the study will be pregnant and have been diagnosed with diabetes.

Description

Inclusion Criteria:

  • All women included in the study will either have diabetes diagnosed before pregnancy or will have been diagnosed during pregnancy (GDM). We do not exclude minors, since in Missouri, they may consent to medical treatment without parental consent for medical issues relating to pregnancy,

Exclusion Criteria:

  • No specific exclusion criteria will be used. BMI data will be collected and utilized to sort patients into various subgroups, but will not be used as exclusion criteria.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
With Diabetes
Pregnant women with diabetes - either diagnosed beforehand or diagnosed during gestation
Other: Specimens Collected
Serum will be collected from patients at multiple times during pregnancy for later analysis.
Controls
Biobank samples will be obtained from similar age/BMI/ethnicity women who do not have evidence of diabetes.
Other: Specimens Collected
Serum will be collected from patients at multiple times during pregnancy for later analysis.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Glucose Control
Time Frame: up to 60 weeks from enrollment
various measures of glucose control will be reported and compared to other biomarkers measured by the study
up to 60 weeks from enrollment
Adverse Neonatal Events
Time Frame: up to 60 weeks from enrollment
various adverse neonatal events will be reported and compared to other biomarkers measured by the study
up to 60 weeks from enrollment

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Glycated Albumin
Time Frame: up to 60 weeks from enrollment
Levels of % glycated albumin will be measured in the various cohorts to see if correlations exist with glucose control and adverse neonatal events
up to 60 weeks from enrollment
Glycated Serum Protein (GSP)
Time Frame: up to 60 weeks from enrollment
Levels of glycated serum protein will be measured in the various cohorts to see if correlations exist with glucose control and adverse neonatal events
up to 60 weeks from enrollment
Beta-hydroxybutyrate
Time Frame: up to 60 weeks from enrollment
Levels of beta-hydroxybutyrate will be measured in the various cohorts to see if correlations exist with glucose control and adverse neonatal events
up to 60 weeks from enrollment
Triglycerides
Time Frame: up to 60 weeks from enrollment
Levels of triglycerides will be measured in the various cohorts to see if correlations exist with glucose control and adverse neonatal events
up to 60 weeks from enrollment

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Washington University School of Medicine

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
National Institutes of Health (NIH)

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Chair: Ebony Carter, MD, Washington University School of Medicine

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
March 15, 2019

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
November 1, 2021

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
August 1, 2024

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
September 25, 2019

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 26, 2019

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
September 30, 2019

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
August 18, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 14, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
August 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 201808125

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

Yes

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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