Low Glycemic Index (GI) Diet Management for Pregnant Woman With Overweight

Status Completed

Clinical Trial Summary

The study is a randomized, single-blinded, controlled intervention trial to compare the effect of a low glycemic index diet versus diet recommended by the Chinese Dietary Guide for Pregnant Women on maternal and neonatal insulin resistance and adverse gestational events.

Clinical Trial Description

Overweight in pregnant women increases maternal insulin resistance and risk of adverse pregnancy outcomes. Recent evidence from both animal studies and human subject studies shows that adverse environmental exposures during pregnancy result in adverse influence on offsprings. The hypothesis of the current study is that the healthy intervention during pregnancy to overweight pregnant women--low glycemic diet, may improve the maternal and neonatal insulin resistance at birth.

The current study adopts randomized, single-blinded, controlled intervention trial, gives low glycemic index diet intervention based on the national diet and physical activity recommendations for pregnant women to the intervention group and only national diet recommendations to the control group. Four diet consultation interviews will be done,at baseline (first prenatal examination), the end of the 1st trimester, the 2nd trimester and the 3rd trimester respectively, including diet assessment and diet consultation specifically to adopting low glycemic diet. Glycemic load of diet will be calculated based on 24 hour diet recall data for each individual at every visit to help to lower their diet glycemic load by modifying some daily foods. The effect of intervention is investigated by comparing the insulin resistance levels between the two arms at birth and when infants are at age 2. For discrete traits, such as incidence of gestational diabetes and gestational hypertension, Person's chi-square tests were used. For continuous traits, such as insulin resistance index, maternal weight gain and neonatal birth weight, we use t-tests for comparisons between two groups. The study expects that long-term low GI diet intervention have beneficial effects on controlling maternal and neonatal insulin resistance to overweight women and long term health. ;

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Single Blind (Subject), Primary Purpose: Prevention

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT01628835
Study type	Interventional
Source	Children's Hospital of Fudan University
Contact
Status	Completed
Phase	N/A
Start date	June 2012
Completion date	March 2016

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.