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Effect of Infant Formula on Energy Balance

Not Applicable
Completed
Conditions
Development
Interventions
Other: Type of Formula
Registration Number
NCT01700205
Lead Sponsor
Monell Chemical Senses Center
Brief Summary

The overarching goal of the research we propose here is to conduct a randomized clinical trial to specify the physiologic and behavioral mechanisms by which infant-formula composition affects all aspects of energy balance and growth during the first years of life.

Detailed Description

This is a randomized clinical trial of infants whose parents decided to formula feed them; mother-infant dyads will be randomized when infant is 2 weeks of age to one of 2 groups. The groups will differ in the composition of the formula fed to the infant during the first year of life.

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
113
Inclusion Criteria

Not provided

Exclusion Criteria

Not provided

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Type of Formula: CMFType of FormulaInfants are randomized to feed standard cow milk formula during first year of life
Type of Formula: EHFType of FormulaInfants are randomized to feed extensively hydrolyzed infant formula during first year of life
Primary Outcome Measures
NameTimeMethod
Growth, Weight for Age (WAZ) Z Score0.5 to 12.5 months with followup visit at 18.5 mos

At each visit, infants were weighed to monitor normal growth. These anthropometric data were converted to Weight for age Z (WAZ) Z scores using World Health Organization (WHO) growth standards. The Z-score expresses the anthropometric value as a number of standard deviations or Z-scores below or above the reference mean value. Normal range for Z score is -2.0 (minimum) to 2.0 (maximum).

Energy Balance: Energy Loss in Stools0.75, 3.5, 12.5 mos

Stool EL (kcal/day) was determined from 3-day stool collection by bomb calorimetry at each timepoint

Growth: Length for Age (LAZ) Z Scores0.5 to 12.5 months with followup visit at 18.5 mos

At each visit, infants were measured to monitor normal growth. These anthropometric data were converted to Length for age Z (LAZ) Z scores using World Health Organization (WHO) growth standards. The Z-score expresses the anthropometric value as a number of standard deviations or Z-scores below or above the reference mean value. Normal range for Z score is -2.0 (minimum) to 2.0 (maximum).

Energy Balance: Energy Intake From Infant Formula and Other Sources0.75, 3.5, 12.5 mos

Energy intake (kcal/day) of infant formula and other sources was determined by three-day weighed bottle intake and records of the infants' intake of any liquid or food other than formula during the three days

Growth, Weight for Length (WLZ) Z Scores0.5 to 12.5 months with followup visit at 18.5 mos

At each visit, infants were weighed and measured to monitor normal growth. These anthropometric data were converted to weight-for-length (WLZ) Zscores using World Health Organization (WHO) growth standards. The Z-score expresses the anthropometric value as a number of standard deviations or Z-scores below or above the reference mean value. Normal range for Z score is -2.0 (minimum) to 2.0 (maximum).

Energy Balance: Sleeping Energy Expenditure (SEE)0.75, 3.5, 12.5 mos

Postprandial SEE (kcal/day), a proxy for resting energy expenditure in infant, was measured for a minimum of 30 min by open-circuit, indirect calorimetry using a metabolic cart with canopy hood, in a quiet, thermal-neutral room.

Energy Balance: Total Energy Expenditure (TEE)0.75, 3.5, 12.5 mos

TEE (kcal/day) was measured over 7 days at each of the three time points (0.75, 3.5 and12.5 mos) using the doubly labeled water method

Secondary Outcome Measures
NameTimeMethod
Feeding Behaviors, Maternal Perceptions0.5 months

Maternal perception of infant feeding behavior, using standardized questionnaires (Infant feeding style questionnaire; IFSQ); values ranged from 1 to 5; higher scores reflect more of that feeding style. Only baseline data reported herein.

Trial Locations

Locations (1)

Monell Chemical Senses Center

🇺🇸

Philadelphia, Pennsylvania, United States

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