An interventional study of Calibration of infant breast milk and formula milk intake in Obesity, Infant, sponsored by Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center. Withdrawn at 1 site in Brazil. Open to female participants aged 18 Years to 50 Years. Per ClinicalTrials.gov, last updated 2025-11-21.
Sponsored by Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center · Not applicable, Interventional, and Prevention
The global obesity epidemic has extended to low and middle income countries (LMICs) in which in a dramatic nutritional transition has shifted from maternal/child undernutrition to overnutrition. Within Brazil, maternal overweight/obesity (OW/OB) and childhood obesity have dramatically increased. During developmental periods, exposure to maternal OB and high-fat diet increases the risk of childhood and adult obesity, in part a result of increased food intake. Studies confirm that offspring of overweight and obese (OW/OB) women are at increased risk of newborn and age 1 year adiposity, and infant adiposity predicts childhood and adult obesity. The investigators hypothesize that that infants of OW/OB mothers have both relative increased appetite and are provided human milk with increased caloric composition. The investigators propose that calibrating milk or formula intake in infants of overweight mothers can reduce the incidence of infant obesity.
This is a clinical intervention study to calibrate infant milk or formula intake and modulate infant weight gain to prevent the development of infant obesity. The studies will be performed at the Ana Abrão Breastfeeding Center, Federal University of São Paulo, Brazil.
Postpartum women will be with pre-pregnant BMI 30 who are providing exclusive human milk via pumping and bottle (n = 50; 50 percent male and 50 percent female) will be recruited at the 7-9 week postpartum visit, Study women will be randomly assigned (computer generated; blocks of 10) to a Standard Feed (SF) or Calibrated Feed (CF) groups. Both groups will be seen at 2 week intervals for assessment of infant weight, supine length, BMI and skinfold thickness. Continuation of exclusive human milk will be confirmed with questionnaires.
In the SF group, mothers will provide bottled human milk ad libitum. In the CF group, infant weight will be assessed in relation to the daily milk volume and approximate caloric intake (based upon maternal human milk sample analysis). Should infants be within 10th to 90th percentile of WHO BMI growth curves, no intervention will be made. Should the infant be greater than 90th percentile of WHO BMI, the provided human milk volume and daily calorie intake will be adjusted in relation to previously established normal volumes for newborn age, with the input of pediatric physician. In no case, will the daily milk volume or calorie intake be reduced by more than 10%. At the subsequent visit, adjustments in milk volume and calorie intake will continue, dependent upon the infant BMI trend, accommodating the normal increase in milk intake with advancing age. Should the infant be less than 10th percentile of WHO BMI, the maternal- infant dyad will be referred for a pediatric and nutrition consults to assess the cause and treatment for potential nutrient deficiency. At 26 wks, the investigators will assess the distribution of infant weight BMI between SF and CF groups.
An identical Study will be undertaken (Standard Feed and Calibrated Feed), with the exception that only current formula feed mothers will be enrolled. All women will be provided a standard brand of commercial formula feed, for which total caloric content and composition will be determined.
Data Analysis. The investigators will compare standard feed vs calibrated feed infant BMI curves with repeated measures ANOVA (time, BMI) with covariates of the group assignment. The investigators will compare infant weight and BMI curves by maternal BMI and infant birth weight, and between human milk and formula groups. The investigators will analyze growth curves of infants exceeding WHO standards which received adjustments in feedings to assess if early changes in growth curves or milk composition is predictive of weight changes, so as to determine the potential for interventions prior to 90th percentile.
1,129 studies on the registry are indexed under Pediatric Obesity; 187 are open to participants now.
Browse Pediatric Obesity studies →Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center is the lead sponsor of 67 studies on the registry; 1 is open to participants now.
Of its 11 completed or terminated interventional studies of FDA-regulated products, 5 (45%) have results posted.
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Mother infant dyads are eligible for the study, with equal proportion of male and female infant in each study group.
Inclusion Criteria:
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
BMI (body mass index)
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Infants will receive human milk or formula milk ad libitum.
Infants will have reduced human milk or formula milk intake.
Other: Calibration of infant breast milk and formula milk intake
We will calibrate (reduce) the pumped breast milk or formula intake of infants of overweight and obese mothers who exceed 2 standard deviations of normal WHO weight standards, in order to prevent infant obesity and subsequent childhood obesity.
Infant normalized weight at 6 months of age
We will quantify effects of calibrated human milk or formula intake on the normalized weight of infants at 6 months of age.
Time frame: 6 months
Plan to share: Yes — Data will be shared at national and international meetings spanning obstetrics, pediatrics and public health. The findings of the study will be published according to NIH guideline for publication and accepted manuscripts will be deposited to Pub Med Central to ensure public access. For the Brazilian community, we will disseminate research data through educational program, workshops and conferences organized by the Brazil Ministry of Health. It is important to note that we plan to translate our research findings first into Portuguese (language of Brazil) as well as Spanish which is the predominant language spoken in our neighboring countries surrounding Brazil.
Supporting information: Clinical study report
Time frame: Data available at completion of protocol estimated Dec 2023
Access criteria: Established research organization
This study is withdrawn, as verified in Nov 2025. You cannot join it, but the record below documents what was studied.
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Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center