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NCT03301753Active, not recruiting

Maternal Obesity, Breast Milk Composition, and Infant Growth

Source: ClinicalTrials.gov · Last updated 8 Sept 2026

Brief summary (registry, in English)

Today the majority of pregnant women in the United States are either overweight or obese at conception with their offspring having greater adiposity at birth, a 2-fold greater risk of later obesity, and neonatal insulin resistance. It was long thought that breast milk composition was fairly uniform among women, having been optimized through evolutionary time to provide adequate sole nutrition for the growing infant regardless of the environmental circumstances. However, recent evidence shows that breast milk is a highly complex fluid with significant inter-individual variation in hormonal and cytokine concentrations, human milk oligosaccharides (HMOs) and other features. Pervasive maternal obesity and gestational diabetes are evolutionarily novel conditions for the human species but little effort has yet been made to systematically examine how they are associated with breast milk adipose-tissue derived hormone and cytokine (adipocytokine) variation, HMOs, or other features, or whether that variation relates to infant metabolic status. The objective of this study is to comprehensively assess the "lactational programming" hypothesis, that is, whether or not recently documented variation in breast-milk composition is related to both maternal and infant metabolic status. The central hypothesis is that a graded, dose-response relationship between maternal adiposity and GDM exists with adipocytokine concentrations, HMOs, and other features in breast milk and that the milk concentrations of these features are associated with altered body composition in their exclusively breast-fed offspring. The results of the study will be used to design interventions to reduce maternal weight during pregnancy and lactation and to augment lactation education materials to focus on the needs of breastfeeding women with obesity and GDM.

Status (registry)
Active, not recruiting
Study type
Observational
Enrollment
2050 (actual)
First submitted
13 Sept 2017
Start date
1 Jul 2014
Primary completion date
31 Dec 2030
Lead sponsor
University of Minnesota
Diseases
Obesity
NCT number
NCT03301753

What you commit to

  • Study type: Observational
  • Participants enrolled: 2050
  • From 1 Jul 2014 to the primary completion date, 31 Dec 2030
  • 2 sites in 1 country
  • Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Other illness

  • History/current Type I or II diabetes
  • Known congenital metabolic, endocrine disease, or congenital illness affecting infant feeding/growth

Other

  • Alcohol consumption \>1 drink per week during pregnancy/lactation
  • Tobacco consumption during pregnancy/lactation
  • Inability to speak/understand English

Who the study is looking for

  • Pregnant females
  • 21 to 45 years of age at the time of delivery
  • Pre-gravid BMI between 18.5 to 40 kg/m2
  • Healthy pregnancy defined as \<3 days in hospital following delivery
  • Report during enrollment procedures that they have social support for and intention to exclusively breastfeed for at least 3-months
  • If parity \>1, report that they successfully breast fed a previous pregnancy for at least 3 months
  • Singleton gestation
  • Term pregnancy (gestational age \>37 but \<42 weeks)
  • Infant birth weight \>2,500 grams but \<4,500 grams.

Age in the registry: 0 years to 45 years · Sex: All · Accepts healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (2)

Sites in registry order. Pick your city on the disease page to sort them by distance.

SiteCityCountrySite status
University of Minnesota School of Public Health
Coordinator of this site? Confirm its status
MinneapolisUnited StatesUnknown status
University of Oklahoma Health Sciences Center
Coordinator of this site? Confirm its status
Oklahoma CityUnited StatesUnknown status

This page is information, not medical advice. Discuss any trial with your doctor.