Trial Outcomes & Findings for Effect of Infant Formula on Energy Balance (NCT NCT01700205)

NCT ID: NCT01700205

Last Updated: 2019-11-22

Results Overview

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).

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

113 participants

Primary outcome timeframe

0.5 to 12.5 months with followup visit at 18.5 mos

Results posted on

2019-11-22

Participant Flow

From 2012 to 2015, newly parturient women whose decision not to lactate was firmly established were recruited through ads in regional newspapers, websites and hospitals in the greater Philadelphia area.

Participant milestones

Participant milestones
Measure
Type of Formula: CMF
infant is randomized to feed standard cow milk formula during first year of life Type of Formula: infant formula
Type of Formula: EHF
infant is randomized to feed extensively hydrolyzed infant formula during first year of life Type of Formula: infant formula
Overall Study
STARTED
59
54
Overall Study
COMPLETED
44
39
Overall Study
NOT COMPLETED
15
15

Reasons for withdrawal

Reasons for withdrawal
Measure
Type of Formula: CMF
infant is randomized to feed standard cow milk formula during first year of life Type of Formula: infant formula
Type of Formula: EHF
infant is randomized to feed extensively hydrolyzed infant formula during first year of life Type of Formula: infant formula
Overall Study
Withdrawal by Subject
13
13
Overall Study
Protocol Violation
2
2

Baseline Characteristics

Effect of Infant Formula on Energy Balance

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Type of Formula: CMF
n=59 Participants
infant is randomized to feed standard cow milk infant formula \[CMF\] during first year of life Type of Formula: infant formula
Type of Formula: EHF
n=54 Participants
infant is randomized to feed extensively hydrolyzed protein infant formula \[EHF\] first year of life Type of Formula: infant formula
Total
n=113 Participants
Total of all reporting groups
Age, Continuous
0.4 Months
STANDARD_DEVIATION 0.1 • n=5 Participants
0.4 Months
STANDARD_DEVIATION 0.1 • n=7 Participants
0.4 Months
STANDARD_DEVIATION 0.1 • n=5 Participants
Sex: Female, Male
Female
28 Participants
n=5 Participants
29 Participants
n=7 Participants
57 Participants
n=5 Participants
Sex: Female, Male
Male
31 Participants
n=5 Participants
25 Participants
n=7 Participants
56 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
5 Participants
n=5 Participants
8 Participants
n=7 Participants
13 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
54 Participants
n=5 Participants
46 Participants
n=7 Participants
100 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Asian
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
35 Participants
n=5 Participants
35 Participants
n=7 Participants
70 Participants
n=5 Participants
Race (NIH/OMB)
White
17 Participants
n=5 Participants
8 Participants
n=7 Participants
25 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
7 Participants
n=5 Participants
11 Participants
n=7 Participants
18 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Region of Enrollment
United States
59 participants
n=5 Participants
54 participants
n=7 Participants
113 participants
n=5 Participants
TAS2R38 genotype, A49P allele; infants
AA, homozygous recessive
19 Participants
n=5 Participants
15 Participants
n=7 Participants
34 Participants
n=5 Participants
TAS2R38 genotype, A49P allele; infants
AP, heterozygous
27 Participants
n=5 Participants
25 Participants
n=7 Participants
52 Participants
n=5 Participants
TAS2R38 genotype, A49P allele; infants
PP, homozygous dominant
13 Participants
n=5 Participants
14 Participants
n=7 Participants
27 Participants
n=5 Participants

PRIMARY outcome

Timeframe: 0.5 to 12.5 months with followup visit at 18.5 mos

Population: We conducted an intention-to-treat (ITT) analyses on 113 infants regardless of study withdrawal.

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).

Outcome measures

Outcome measures
Measure
Type of Formula: CMF
n=59 Participants
Infant is randomized to be fed standard cow milk formula during first year of life Type of Formula: CMF
Type of Formula: EHF
n=54 Participants
Infant is randomized to be fed extensively protein hydrolyzed infant formula during first year of life Type of Formula: EHF
Growth, Weight for Length (WLZ) Z Scores
Weight for Length Z, 0.5 mos
-0.26 Z score
Standard Error 0.13
-0.12 Z score
Standard Error 0.13
Growth, Weight for Length (WLZ) Z Scores
Weight for Length Z, 18.5 mos
0.80 Z score
Standard Error 0.14
0.68 Z score
Standard Error 0.15
Growth, Weight for Length (WLZ) Z Scores
Weight for Length Z, 0.75 mos
-0.12 Z score
Standard Error 0.13
0.13 Z score
Standard Error 0.13
Growth, Weight for Length (WLZ) Z Scores
Weight for Length Z, 1.5 mos
0.24 Z score
Standard Error 0.13
-0.17 Z score
Standard Error 0.13
Growth, Weight for Length (WLZ) Z Scores
Weight for Length Z, 2.5 mos
0.24 Z score
Standard Error 0.13
-0.17 Z score
Standard Error 0.13
Growth, Weight for Length (WLZ) Z Scores
Weight for Length Z, 3.5 mos
0.22 Z score
Standard Error 0.13
-0.38 Z score
Standard Error 0.14
Growth, Weight for Length (WLZ) Z Scores
Weight for Length Z, 4.5 mos
0.39 Z score
Standard Error 0.13
-0.24 Z score
Standard Error 0.14
Growth, Weight for Length (WLZ) Z Scores
Weight for Length Z, 5.5 mos
0.42 Z score
Standard Error 0.14
-0.36 Z score
Standard Error 0.14
Growth, Weight for Length (WLZ) Z Scores
Weight for Length Z, 6.5 mos
0.52 Z score
Standard Error 0.14
0.18 Z score
Standard Error 0.14
Growth, Weight for Length (WLZ) Z Scores
Weight for Length Z, 7.5 mos
0.59 Z score
Standard Error 0.14
0.20 Z score
Standard Error 0.14
Growth, Weight for Length (WLZ) Z Scores
Weight for Length Z, 8.5 mos
0.76 Z score
Standard Error 0.14
0.29 Z score
Standard Error 0.14
Growth, Weight for Length (WLZ) Z Scores
Weight for Length Z, 9.5 mos
0.71 Z score
Standard Error 0.14
0.40 Z score
Standard Error 0.14
Growth, Weight for Length (WLZ) Z Scores
Weight for Length Z, 10.5 mos
0.76 Z score
Standard Error 0.14
0.46 Z score
Standard Error 0.14
Growth, Weight for Length (WLZ) Z Scores
Weight for Length Z, 11.5 mos
0.72 Z score
Standard Error 0.14
0.51 Z score
Standard Error 0.14
Growth, Weight for Length (WLZ) Z Scores
Weight for Length Z, 12.5 mos
0.70 Z score
Standard Error 0.14
0.52 Z score
Standard Error 0.14

PRIMARY outcome

Timeframe: 0.5 to 12.5 months with followup visit at 18.5 mos

Population: We conducted an intention-to-treat (ITT) analyses on 113 infants regardless of study withdrawal.

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).

Outcome measures

Outcome measures
Measure
Type of Formula: CMF
n=59 Participants
Infant is randomized to be fed standard cow milk formula during first year of life Type of Formula: CMF
Type of Formula: EHF
n=54 Participants
Infant is randomized to be fed extensively protein hydrolyzed infant formula during first year of life Type of Formula: EHF
Growth, Weight for Age (WAZ) Z Score
Weight for Age Z score, 2.5 mos
-0.34 Z score
Standard Error 0.12
-0.66 Z score
Standard Error 0.13
Growth, Weight for Age (WAZ) Z Score
Weight for Age Z score, 4.5 mos
0.07 Z score
Standard Error 0.13
-0.37 Z score
Standard Error 0.13
Growth, Weight for Age (WAZ) Z Score
Weight for Age Z score, 7.5 mos
0.38 Z score
Standard Error 0.13
0.02 Z score
Standard Error 0.13
Growth, Weight for Age (WAZ) Z Score
Weight for Age Z score, 8.5 mos
0.50 Z score
Standard Error 0.13
0.08 Z score
Standard Error 0.13
Growth, Weight for Age (WAZ) Z Score
Weight for Age Z score, 9.5 mos
0.51 Z score
Standard Error 0.13
0.16 Z score
Standard Error 0.13
Growth, Weight for Age (WAZ) Z Score
Weight for Age Z score, 12.5 mos
0.52 Z score
Standard Error 0.13
0.32 Z score
Standard Error 0.13
Growth, Weight for Age (WAZ) Z Score
Weight for Age Z score, 18.5 mos
0.56 Z score
Standard Error 0.14
0.40 Z score
Standard Error 0.15
Growth, Weight for Age (WAZ) Z Score
Weight for Age Z score, 0.5 mos
-0.36 Z score
Standard Error 0.12
-0.25 Z score
Standard Error 0.13
Growth, Weight for Age (WAZ) Z Score
Weight for Age Z score, 0.75 mos
-0.41 Z score
Standard Error 0.12
-0.28 Z score
Standard Error 0.13
Growth, Weight for Age (WAZ) Z Score
Weight for Age Z score, 1.5 mos
-0.38 Z score
Standard Error 0.12
-0.61 Z score
Standard Error 0.13
Growth, Weight for Age (WAZ) Z Score
Weight for Age Z score, 3.5 mos
-0.14 Z score
Standard Error 0.12
0.64 Z score
Standard Error 0.13
Growth, Weight for Age (WAZ) Z Score
Weight for Age Z score, 5.5 mos
0.18 Z score
Standard Error 0.13
-0.20 Z score
Standard Error 0.13
Growth, Weight for Age (WAZ) Z Score
Weight for Age Z score, 6.5 mos
0.29 Z score
Standard Error 0.13
-0.03 Z score
Standard Error 0.13
Growth, Weight for Age (WAZ) Z Score
Weight for Age Z score, 10.5 mos
0.54 Z score
Standard Error 0.13
0.20 Z score
Standard Error 0.13
Growth, Weight for Age (WAZ) Z Score
Weight for Age Z score, 11.5 mos
0.52 Z score
Standard Error 0.13
0.28 Z score
Standard Error 0.13
Growth, Weight for Age (WAZ) Z Score
Length for Age Z score, 18.5 mos
-0.07 Z score
Standard Error 0.14
-0.22 Z score
Standard Error 0.16

PRIMARY outcome

Timeframe: 0.5 to 12.5 months with followup visit at 18.5 mos

Population: We conducted an intention-to-treat (ITT) analyses on 113 infants regardless of study withdrawal.

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).

Outcome measures

Outcome measures
Measure
Type of Formula: CMF
n=59 Participants
Infant is randomized to be fed standard cow milk formula during first year of life Type of Formula: CMF
Type of Formula: EHF
n=54 Participants
Infant is randomized to be fed extensively protein hydrolyzed infant formula during first year of life Type of Formula: EHF
Growth: Length for Age (LAZ) Z Scores
Length for Age Z score, 0.5 mos
-0.49 Z score
Standard Error 0.14
-0.46 Z score
Standard Error 0.14
Growth: Length for Age (LAZ) Z Scores
Length for Age Z score, 4.5 mos
-0.26 Z score
Standard Error 0.14
-0.21 Z score
Standard Error 0.15
Growth: Length for Age (LAZ) Z Scores
Length for Age Z score, 6.5 mos
-0.05 Z score
Standard Error 0.14
-0.17 Z score
Standard Error 0.15
Growth: Length for Age (LAZ) Z Scores
Length for Age Z score, 11.5 mos
0.00 Z score
Standard Error 0.14
-0.18 Z score
Standard Error 0.15
Growth: Length for Age (LAZ) Z Scores
Length for Age Z score, 12.5 mos
0.03 Z score
Standard Error 0.14
-0.13 Z score
Standard Error 0.15
Growth: Length for Age (LAZ) Z Scores
Length for Age Z score, 18.5 mos
-0.07 Z score
Standard Error 0.14
-0.22 Z score
Standard Error 0.16
Growth: Length for Age (LAZ) Z Scores
Length for Age Z score, 0.75 mos
-0.56 Z score
Standard Error 0.14
0.59 Z score
Standard Error 0.14
Growth: Length for Age (LAZ) Z Scores
Length for Age Z score, 1.5 mos
-0.55 Z score
Standard Error 0.14
-0.48 Z score
Standard Error 0.14
Growth: Length for Age (LAZ) Z Scores
Length for Age Z score, 2.5 mos
-0.57 Z score
Standard Error 0.14
-0.62 Z score
Standard Error 0.14
Growth: Length for Age (LAZ) Z Scores
Length for Age Z score, 3.5mos
-0.36 Z score
Standard Error 0.14
-0.43 Z score
Standard Error 0.15
Growth: Length for Age (LAZ) Z Scores
Length for Age Z score, 5.5 mos
-0.13 Z score
Standard Error 0.14
-0.17 Z score
Standard Error 0.15
Growth: Length for Age (LAZ) Z Scores
Length for Age Z score, 7.5 mos
0.01 Z score
Standard Error 0.14
-0.11 Z score
Standard Error 0.15
Growth: Length for Age (LAZ) Z Scores
Length for Age Z score, 8.5 mos
-0.02 Z score
Standard Error 0.14
-0.16 Z score
Standard Error 0.15
Growth: Length for Age (LAZ) Z Scores
Length for Age Z score, 9.5 mos
0.01 Z score
Standard Error 0.14
-0.19 Z score
Standard Error 0.15
Growth: Length for Age (LAZ) Z Scores
Length for Age Z score, 10.5 mos
0.01 Z score
Standard Error 0.14
-0.21 Z score
Standard Error 0.15

PRIMARY outcome

Timeframe: 0.75, 3.5, 12.5 mos

Population: Intent-to-treat analysis (N=113).

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

Outcome measures

Outcome measures
Measure
Type of Formula: CMF
n=59 Participants
Infant is randomized to be fed standard cow milk formula during first year of life Type of Formula: CMF
Type of Formula: EHF
n=54 Participants
Infant is randomized to be fed extensively protein hydrolyzed infant formula during first year of life Type of Formula: EHF
Energy Balance: Energy Intake From Infant Formula and Other Sources
Energy Intake from Formula, 12.5 mos
425 kcal per day
Standard Error 50
284 kcal per day
Standard Error 56
Energy Balance: Energy Intake From Infant Formula and Other Sources
Energy Intake from Other Sources, 12.5 mos
712 kcal per day
Standard Error 51
863 kcal per day
Standard Error 57
Energy Balance: Energy Intake From Infant Formula and Other Sources
Energy Intake from Formula, 0.75 months
466 kcal per day
Standard Error 14
383 kcal per day
Standard Error 15
Energy Balance: Energy Intake From Infant Formula and Other Sources
Energy Intake from Other Sources, 0.75 months
0 kcal per day
Standard Error 0
0 kcal per day
Standard Error 0
Energy Balance: Energy Intake From Infant Formula and Other Sources
Energy Intake from Formula, 3.5 mos
628 kcal per day
Standard Error 21
596 kcal per day
Standard Error 21
Energy Balance: Energy Intake From Infant Formula and Other Sources
Energy Intake from Other Sources, 3.5 mos
11 kcal per day
Standard Error 5
10 kcal per day
Standard Error 6

PRIMARY outcome

Timeframe: 0.75, 3.5, 12.5 mos

Population: Intent-to-treat analysis (N=113).

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.

Outcome measures

Outcome measures
Measure
Type of Formula: CMF
n=59 Participants
Infant is randomized to be fed standard cow milk formula during first year of life Type of Formula: CMF
Type of Formula: EHF
n=54 Participants
Infant is randomized to be fed extensively protein hydrolyzed infant formula during first year of life Type of Formula: EHF
Energy Balance: Sleeping Energy Expenditure (SEE)
Sleeping Energy Expenditure (0.75 months)
206 kcal per day
Standard Error 6
201 kcal per day
Standard Error 6
Energy Balance: Sleeping Energy Expenditure (SEE)
Sleeping Energy Expenditure, 3.5 months
329 kcal per day
Standard Error 8
321 kcal per day
Standard Error 8
Energy Balance: Sleeping Energy Expenditure (SEE)
Sleeping Energy Expenditure, 12.5 months
507 kcal per day
Standard Error 11
509 kcal per day
Standard Error 11

PRIMARY outcome

Timeframe: 0.75, 3.5, 12.5 mos

Population: Intent-to-treat analysis (N=113).

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

Outcome measures

Outcome measures
Measure
Type of Formula: CMF
n=59 Participants
Infant is randomized to be fed standard cow milk formula during first year of life Type of Formula: CMF
Type of Formula: EHF
n=54 Participants
Infant is randomized to be fed extensively protein hydrolyzed infant formula during first year of life Type of Formula: EHF
Energy Balance: Total Energy Expenditure (TEE)
Total energy expenditure, 0.75 months
283 kcal per day
Standard Error 18
243 kcal per day
Standard Error 19
Energy Balance: Total Energy Expenditure (TEE)
Total energy expenditure, 3.5 months
488 kcal per day
Standard Error 24
444 kcal per day
Standard Error 26
Energy Balance: Total Energy Expenditure (TEE)
Total energy expenditure, 12.5 months
859 kcal per day
Standard Error 42
858 kcal per day
Standard Error 45

PRIMARY outcome

Timeframe: 0.75, 3.5, 12.5 mos

Population: Intent-to-treat analysis (N=113).

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

Outcome measures

Outcome measures
Measure
Type of Formula: CMF
n=59 Participants
Infant is randomized to be fed standard cow milk formula during first year of life Type of Formula: CMF
Type of Formula: EHF
n=54 Participants
Infant is randomized to be fed extensively protein hydrolyzed infant formula during first year of life Type of Formula: EHF
Energy Balance: Energy Loss in Stools
Energy Loss in Stools, 3.5 months
20.7 kcal per day
Standard Error 1.8
17.0 kcal per day
Standard Error 1.9
Energy Balance: Energy Loss in Stools
Energy Loss in Stools, 0.75 months
22.3 kcal per day
Standard Error 3.9
34.9 kcal per day
Standard Error 4.1
Energy Balance: Energy Loss in Stools
Energy Loss in Stools, 12.5 months
27.1 kcal per day
Standard Error 3.2
33.8 kcal per day
Standard Error 3.4

SECONDARY outcome

Timeframe: 0.5 months

Population: Some mothers responded N/A on questions related to restrictive feeding styles and thus score for this subscale could not be computed.

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.

Outcome measures

Outcome measures
Measure
Type of Formula: CMF
n=59 Participants
Infant is randomized to be fed standard cow milk formula during first year of life Type of Formula: CMF
Type of Formula: EHF
n=54 Participants
Infant is randomized to be fed extensively protein hydrolyzed infant formula during first year of life Type of Formula: EHF
Feeding Behaviors, Maternal Perceptions
Laissez-Faire Feeding Style, 0.5 mos
3.1 Units on a scale
Standard Error 0.1
3.0 Units on a scale
Standard Error 0.1
Feeding Behaviors, Maternal Perceptions
Restrictive Feeding Style, 0.5 mos
2.8 Units on a scale
Standard Error 0.1
2.6 Units on a scale
Standard Error 0.2
Feeding Behaviors, Maternal Perceptions
Responsive Feeding Styly, 0.5 mos
4.1 Units on a scale
Standard Error 0.1
4.0 Units on a scale
Standard Error 0.1
Feeding Behaviors, Maternal Perceptions
Pressure to Eat Feeding Style, 0.5 mos
2.2 Units on a scale
Standard Error 0.1
2.4 Units on a scale
Standard Error 0.1

Adverse Events

Type of Formula: CMF

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Type of Formula: EHF

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Adverse event data not reported

Additional Information

Julia A. Mennella, PhD

Monell Chemical Senses Center

Phone: 267-519-4880

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place