Obesity Clinical Trial
— Healthy MamasOfficial title:
A Weight Maintenance Program Promoting Fat Loss in Pregnancy in Women With Obesity
The aims of this randomized controlled trial are to determine the effects of a lifestyle program that supports weight maintenance and fat mass loss during pregnancy in women with obesity on changes in 1) maternal weight, fat mass, and cardiometabolic risk factors; 2) safety measures, including fetal and neonatal growth; 3) the mediators and moderators of the fat mass loss intervention and 4) the effects gestational fat mass loss has on reducing incidence of adverse obstetrical outcomes, including non-elective cesarean delivery, gestational diabetes, hypertension, and pre-eclampsia.
Status | Recruiting |
Enrollment | 100 |
Est. completion date | December 30, 2026 |
Est. primary completion date | December 31, 2025 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | Female |
Age group | 18 Years to 45 Years |
Eligibility | Inclusion Criteria: - Are pregnant less than or equal to 15 weeks gestation at screening - Have a body mass index between 31.0 and 55.0 inclusive - Have a confirmed viable singleton gestation - Willing to receive randomization to either group - Willing and able to eat the study foods - Willing to enroll infant for study measurements after birth - Receive clearance from the prenatal care provider for participation Exclusion Criteria: - Smoking, drug, or alcohol use - Have a known fetal anomaly - Have a non-pregnancy related illness - Have pre-existing diabetes - Have pre-existing hypertension - Have severe anemia - Have current mental health issue or eating disorder - Short inter-pregnancy interval (<6 months since last pregnancy) - Use of assisted reproductive technology - Use of medications with known effects on body weight including over the counter medications and supplements for weight loss - History of pre-eclampsia, prior small for gestational age infant, bariatric surgery - Planning to move out of the area in the next 12 months |
Country | Name | City | State |
---|---|---|---|
United States | Pennington Biomedical Research Center | Baton Rouge | Louisiana |
United States | California Polytechnic State University | San Luis Obispo | California |
Lead Sponsor | Collaborator |
---|---|
Pennington Biomedical Research Center | California Polytechnic State University-San Luis Obispo, National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), Oregon Health and Science University |
United States,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Body weight change from early pregnancy to end of pregnancy | Body weight will be measured using a calibrated electrical scale with participants wearing a hospital gown and underwear. | 13-16 weeks gestation and 35-37 weeks gestation | |
Primary | Fat mass change from early pregnancy to end of pregnancy | Fat mass will be assessed via a 3-compartment model in which fat mass is calculated from body weight, body density measured by the BODPOD, and total body water measured by deuterium dilution. | 13-16 weeks gestation and 35-37 weeks gestation | |
Primary | Total body water change from early pregnancy to end of pregnancy | Total body water is assessed by deuterium dilution. | 13-16 weeks gestation and 35-37 weeks gestation | |
Primary | Fat-free mass change from early pregnancy to end of pregnancy | Fat-free mass will be calculated as the subtraction of fat mass from total body weight. | 13-16 weeks gestation and 35-37 weeks gestation | |
Primary | Body weight change from early pregnancy to approximately 2 weeks postpartum | Body weight will be measured using a calibrated electrical scale with participants wearing a hospital gown and underwear. | 13-16 weeks gestation and approximately 2 weeks postpartum | |
Primary | Fat mass change from early pregnancy to approximately 2 weeks postpartum | Fat mass will be assessed via a 3-compartment model in which fat mass is calculated from body weight, body density measured by the BODPOD, and total body water measured by deuterium dilution. | 13-16 weeks gestation and approximately 2 weeks postpartum | |
Primary | Total body water change from early pregnancy to approximately 2 weeks postpartum | Total body water is assessed by deuterium dilution. | 13-16 weeks gestation and approximately 2 weeks postpartum | |
Primary | Fat-free mass change from early pregnancy to approximately 2 weeks postpartum | Fat-free mass will be calculated as the subtraction of fat mass from total body weight. | 13-16 weeks gestation and approximately 2 weeks postpartum |
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