Preventing Excessive Gestational Weight Gain in Obese Women

July 29, 2021 updated by: Suzanne Phelan, California Polytechnic State University-San Luis Obispo
The purpose of this study is to study the effects of a multicomponent lifestyle intervention that includes partial meal replacements as a means to prevent excessive gestational weight gain in obese women. The primary hypothesis is that the intervention will reduce the rate of gestational weight gain compared with standard care.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

264

Phase

  • Not Applicable

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
    • California
      • San Luis Obispo, California, United States, 93401
        • California Polytechnic State University
    • Rhode Island
      • Providence, Rhode Island, United States, 02906
        • Miriam Hospital

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

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

Female

Description

Inclusion criteria:

  • Over 18 years old
  • < 16 weeks gestation
  • BMI >= 25
  • Willing to consent

Exclusion Criteria:

  • Pregnant with Twins
  • Untreated medical or psychological problem
  • Inability to be physically active

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

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
No Intervention: Standard Care
Experimental: Lifestyle intervention
Behavioral: Lifestyle intervention
The intervention is a multicomponent program designed to prevent excessive gestational weight gain in obese women through modifications of diet, exercise, and behavioral strategies during pregnancy.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Weight Gain Per Week of Observation
Time Frame: 13 weeks gestation, 35 weeks gestation
Rate of gestational weight gain will be computed as difference between weights measured at study entry and gestational week 35; this difference will be divided by the number of weeks of observation during pregnancy (i.e., weeks between study entry and final pregnancy assessment). If gestational week 35 is unavailable, most proximal clinic visit weight will be used.
13 weeks gestation, 35 weeks gestation

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Offspring Weight Gain
Time Frame: 1 week, 6 months, 12 months
Offspring weight for age z scores from birth (1 week), to 6 months, and 12 months of age.
1 week, 6 months, 12 months
Kcals/Day
Time Frame: 13 weeks gestation, 34 weeks gestation
Changes in maternal calorie intake (Kcal/day)
13 weeks gestation, 34 weeks gestation
Changes in Offspring Dietary Intake
Time Frame: 1 week, 6 months, 12 months
Changes in offspring intake of breast milk (#feeds per day) and/or formula (#feeds per day).
1 week, 6 months, 12 months
Changes in Maternal Glucose
Time Frame: 13 weeks gestation, 34 weeks gestation
Fasting glucose
13 weeks gestation, 34 weeks gestation
Number of Women Exceeding IOM Guidelines as a Proportion of Total Number of Women in Each Group.
Time Frame: 13 weeks, 40 weeks
Self-reported pre-pregnancy weight will be subtracted from weight measured at last clinic visit prior to delivery. Women will be categorized as exceeding 2009 IOM guidelines if the difference is > 11.5 kg gain for women with prepregnancy overweight or >9 kg for women with prepregnancy obesity.
13 weeks, 40 weeks
Number of Women at or Below Prepregnancy Weight as a Proportion of the Total Number of Participants in Each Group
Time Frame: 48-56 weeks post delivery
Weight measured at 48-56 weeks postpartum and subtracted from self-reported prepregnancy weight and then categorized as at or below vs. above self-reported prepregnancy weight.
48-56 weeks post delivery

Collaborators and Investigators

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

Sponsor

California Polytechnic State University-San Luis Obispo

Collaborators

Brown University

Investigators

  • Principal Investigator: Suzanne Phelan, PhD, Cal Poly

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)

November 1, 2012

Primary Completion (Actual)

May 1, 2016

Study Completion (Actual)

June 1, 2020

Study Registration Dates

First Submitted

February 28, 2012

First Submitted That Met QC Criteria

March 2, 2012

First Posted (Estimate)

March 7, 2012

Study Record Updates

Last Update Posted (Actual)

August 2, 2021

Last Update Submitted That Met QC Criteria

July 29, 2021

Last Verified

July 1, 2021

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • U01 HL114377A

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.

Clinical Trials on Obesity

Clinical Trials on Lifestyle intervention

Search Similar Trials

Sponsors and Collaborators

Medical Conditions

Drug Interventions

CROs by country

CROs in Serbia

Conditions

Rare Diseases

Drug Interventions

Dietary Supplements

Sponsor/Collaborators

Locations

3
Subscribe