NCT05798676

Brief Summary

The goal of this observational study is to investigate the concentrations of leptin, insulin, liver expressed antimicrobial peptide 2 (LEAP2), and cortisol in plasma and breast milk and their relationship with eating behavior, growth, adiposity and with the levels of these hormones in infants, comparing mothers with normal weight and with pre-pregnancy overweight/obesity. The main question\[s\] it aims to answer are:

  • Are maternal hormones associated with child growth and adiposity
  • Are maternal hormone receptors associated with child growth and adiposity
  • Are infant hormones and their receptors associated with child growth and adiposity
  • Are maternal and infant hormones and their receptors associated with child eating behavior Participants will provide milk and blood samples. Researchers will compare mothers with normal weight and with pre-pregnancy overweight/obesity to see if there are differences in child growth and adiposity .

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
130

participants targeted

Target at P50-P75 for all trials

Timeline
23mo left

Started May 2019

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress79%
May 2019Mar 2028

Study Start

First participant enrolled

May 2, 2019

Completed
3.8 years until next milestone

First Submitted

Initial submission to the registry

February 23, 2023

Completed
1 month until next milestone

First Posted

Study publicly available on registry

April 4, 2023

Completed
4.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2028

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2028

Last Updated

December 26, 2025

Status Verified

December 1, 2025

Enrollment Period

8.8 years

First QC Date

February 23, 2023

Last Update Submit

December 19, 2025

Conditions

Outcome Measures

Primary Outcomes (14)

  • infant weight

    weight in kilograms

    from birth to 2 years old

  • infant height

    height in centimeters

    from birth to 2 years old

  • infant body mass index (BMI)

    weight and height will be combined to report BMI in kg/m\^2

    from birth to 2 years old

  • infant upper arm circumference

    upper arm circumference in centimeters

    from birth to 2 years old

  • infant skinfold thickness

    skinfold thickness in centimeters

    from birth to 2 years old

  • infant blood leptin concentration

    blood leptin concentration (ng/ml)

    six months old

  • infant blood cortisol concentration

    blood cortisol concentration (ug%)

    six months old

  • infant saliva cortisol concentration

    saliva cortisol (ug%)

    six months old

  • infant blood insulin concentration

    blood insulin concentration (uU/ml)

    six months old

  • infant insulin receptor gene expression in peripheral blood mononuclear cells

    insulin receptor gene expression in peripheral blood mononuclear cells (relative expression)

    six months old

  • infant leptin receptor gene expression in peripheral blood mononuclear cells

    leptin receptor gene expression in peripheral blood mononuclear cells (relative expression)

    six months old

  • infant glucocorticoid receptor gene expression in peripheral blood mononuclear cells

    glucocorticoid receptor gene expression in peripheral blood mononuclear cells (relative expression)

    six months old

  • infant blood LEAP2 concentration

    blood LEAP2 concentration (pg/ml)

    six months old

  • infant eating behavior assessed in a Taste acceptance test

    Outcome Measures Infant taste acceptance was assessed using two complementary measures: an Ingestion Ratio (IR) and a Liking Ratio (LR). Sweet and fat taste acceptance were evaluated using a lactose solution (0.2 M) and a fat emulsion (3.5% w/v), respectively, with water used as a reference. During each test, infants were sequentially offered bottles containing water and the tastant. Intake volume was determined by weighing bottles before and after ingestion. The IR was calculated as the volume of tastant consumed divided by the total volume of tastant plus water consumed, allowing comparison across infants by accounting for individual differences in sucking behavior. The LR was based on a blinded experimenter's assessment of the infant's overall behavioral response using a standardized 5-point scale ranging from strong rejection to strong acceptance. Both ratios ranged from 0 to 1, with 0.5 indicating indifference relative to water.

    at 18 month od

Secondary Outcomes (11)

  • maternal blood leptin concentration

    15 days, three and six months postpartum

  • maternal milk leptin concentration

    15 days, three and six months postpartum

  • maternal blood insulin concentration

    15 days, three and six months postpartum

  • maternal milk insulin concentration

    15 days, three and six months postpartum

  • maternal blood cortisol concentration

    15 days, three and six months postpartum

  • +6 more secondary outcomes

Study Arms (2)

mothers with pre-pregnancy normal weight and their infants

mothers with pre-pregnancy normal weight according to World Health Organization will provide blood and milk samples

mothers with pre-pregnancy overweight or obesity and their infants

mothers with pre-pregnancy overweight or obesity according to World Health Organization will provide blood and milk samples

Other: overweight/obesity

Interventions

the consequences of maternal pregestational overweight/obesity on infant´s growth and adiposity will be studied

mothers with pre-pregnancy overweight or obesity and their infants

Eligibility Criteria

Age18 Years - 40 Years
Sexfemale
Healthy VolunteersYes
Age GroupsAdult (18-64)
Sampling MethodNon-Probability Sample
Study Population

Lactating women with pre-pregnancy normal weight and overweight or obesity recruited at the Mother and Healthy Children Outpatient Service, Instituto de Desarrollo e Investigaciones Pediátricas (IDIP), HIAEP "Sor María Ludovica", La Plata, Argentina.

You may qualify if:

  • Lactating women with pre-pregnancy normal weight and overweight or obesity as described by the World Health Organization.

You may not qualify if:

  • Diabetes (Type I or II or gestational)
  • Multiple pregnancy
  • Hypertensive disorders during pregnancy
  • Delivery of pre-term infant (\<37 weeks).

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Instituto de Desarrollo e Investigaciones Pediátricas Prof. Dr. Fernando E. Viteri

La Plata, Buenos Aires, 1900, Argentina

RECRUITING

Related Publications (2)

  • Kruger AL, Malpeli A, Sala M, Casado C, Mendez I, Fotia L, Tournier A, Fasano MV, Andreoli MF. Human milk cortisol is inversely associated with infant BMI and mediates the association between maternal plasma and infant salivary cortisol concentrations. Int J Obes (Lond). 2025 Aug;49(8):1632-1641. doi: 10.1038/s41366-025-01815-4. Epub 2025 May 31.

  • Kruger AL, Malpeli A, Sala M, Casado C, Mendez I, Fotia L, Lopez M, Tournier A, Castrogiovanni D, Heredia F, Llovera R, Schioth HB, Perello M, Andreoli MF. The Concentration of Liver-Expressed Antimicrobial Peptide 2 in Human Milk and Infant Plasma Is Positively Associated with Adiposity and Body Weight in the First Year of Life. J Nutr. 2024 Nov;154(11):3388-3399. doi: 10.1016/j.tjnut.2024.09.008. Epub 2024 Sep 12.

Biospecimen

Retention: SAMPLES WITH DNA

blood and milk

MeSH Terms

Conditions

ObesityPediatric Obesity

Interventions

Adiposity

Condition Hierarchy (Ancestors)

OverweightOvernutritionNutrition DisordersNutritional and Metabolic DiseasesBody WeightSigns and SymptomsPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

Body Fat DistributionBody Weights and MeasuresBody ConstitutionPhysical ExaminationDiagnostic Techniques and ProceduresDiagnosisBody CompositionBiochemical PhenomenaChemical PhenomenaMetabolismPhysiological Phenomena

Study Officials

  • Maria F Andreoli, BsC

    Instituto de Desarrollo e Investigaciones Pediátricas Prof. Dr. Fernando E. Viteri

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Maria F Andreoli, PhD

CONTACT

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

February 23, 2023

First Posted

April 4, 2023

Study Start

May 2, 2019

Primary Completion (Estimated)

March 1, 2028

Study Completion (Estimated)

March 1, 2028

Last Updated

December 26, 2025

Record last verified: 2025-12

Locations