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Terminated No phase listed Observational Accepts healthy volunteers

Predictors of Maternal Weight Gain and Neonatal Body Composition

ClinicalTrials.gov ID: NCT00634764

Public ClinicalTrials.gov record NCT00634764. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 7, 2026, 8:00 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

Resting Metabolic Rate, Insulin Resistance, and Attitude Towards Weight Gain During Pregnancy to Predict Maternal Weight Gain and Neonatal Body Composition.

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

Obesity is a significant health issue in the United States with 30% of the US population considered obese defined as a body mass index above 30 kg/m2. Obesity is associated with long term health complications including diabetes and cardiovascular disorders. During pregnancy, obesity is associated with an increased risk of fetal macrosomia and birth injury, as well as increased risk of gestational diabetes, preeclampsia, cesarean birth, and preterm birth. The intrauterine environment has been purported to influence the early childhood and lifelong risk of obesity and the metabolic syndrome (obesity, hyperlipidemia, and insulin resistance \[IR\]). The Institute of Medicine guidelines for maternal weight gain in pregnancy provide an estimate for population goals, but may be inadequate for individual patient needs. Other factors, such as the degree of maternal IR and resting metabolic rate (RMR) may be more predictive of actual nutritional needs during pregnancy. A better determination of caloric and exercise needs may allow the development of more specific dietary recommendations during pregnancy. Optimal nutrition will result in improved maternal and neonatal outcomes. As the intrauterine environment may have important impacts on neonatal and childhood metabolic and cardiovascular outcomes, creation of a favorable intrauterine environment through optimal maternal nutritional and exercise guidelines may reduce well documented problems such as fetal macrosomia, birth injury, cesarean delivery, and later predisposition toward childhood obesity. The goal of this pilot trial therefore is to correlate maternal resting metabolic rate, dietary characteristics, and insulin resistance levels with fetal birth weight and body composition in an effort to determine which factors are associated with excessive fat mass in the neonate, placing them at increased lifetime risk of obesity. We hypothesize that women with lower resting metabolic rates (RMR) in the first trimester will demonstrate a greater maternal weight gain, when adjusted for caloric intake and activity. It is also hypothesized that for a given RMR, the degree of maternal insulin resistance (IR) predicts birthweight adjusted for a given caloric intake. A third hypothesis is that women with increased insulin resistance (measured by HOMA) will result in neonates with larger birth weights and a greater degree of neonatal fat mass as measure by DEXA scan, adjusted for RMR and diet characteristics.

Study identification

NCT ID
NCT00634764
Recruitment status
Terminated
Study type
Observational
Phase
Not listed
Enrollment
3 participants

Conditions and interventions

Conditions

Interventions

Not listed

Eligibility (public fields only)

Age range
18 Years to 45 Years
Sex
Female
Healthy volunteers
Accepts healthy volunteers

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Oct 31, 2006
Primary completion
Jun 30, 2008
Completion
Jun 30, 2008
Last update posted
May 17, 2018

2006 – 2008

United States locations

U.S. sites
1
U.S. states
1
U.S. cities
1
Facility City State ZIP Site status
Medical University of South Carolina Charleston South Carolina 29425

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

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About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT00634764, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted May 17, 2018 · Synced Sep 7, 2026

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