Trial Outcomes & Findings for A Trial to Determine Weight Gain Benefits of Caloric Supplementation for NAS Infants (NCT NCT04419857)

NCT ID: NCT04419857

Last Updated: 2026-06-30

Results Overview

this will be measured by twice daily weights while in the hospital and once daily weights at home for two weeks after birth compared with birth weight

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

39 participants

Primary outcome timeframe

2 weeks

Results posted on

2026-06-30

Participant Flow

39 participants were consented with 4 participants withdrawn prior to randomization. 35 participants were randomized.

Participant milestones

Participant milestones
Measure
Standard Calorie Formula
Infant randomly assigned to standard-calorie formula for 14 days
High-calorie Formula
Infant randomly assigned to high-calorie formula for 14 days
Overall Study
STARTED
16
19
Overall Study
COMPLETED
16
19
Overall Study
NOT COMPLETED
0
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Out of the number of participants taking each drug.

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Standard Calorie Formula
n=16 Participants
Infant randomly assigned to standard-calorie formula for 14 days
High-calorie Formula
n=19 Participants
Infant randomly assigned to high-calorie formula for 14 days
Total
n=35 Participants
Total of all reporting groups
Age, Continuous
39.4 weeks
STANDARD_DEVIATION 1.2 • n=16 Participants
38.9 weeks
STANDARD_DEVIATION 1.6 • n=19 Participants
39.1 weeks
STANDARD_DEVIATION 1.4 • n=35 Participants
Sex: Female, Male
Female
6 Participants
n=16 Participants
11 Participants
n=19 Participants
17 Participants
n=35 Participants
Sex: Female, Male
Male
10 Participants
n=16 Participants
8 Participants
n=19 Participants
18 Participants
n=35 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=16 Participants
0 Participants
n=19 Participants
0 Participants
n=35 Participants
Race (NIH/OMB)
Asian
0 Participants
n=16 Participants
0 Participants
n=19 Participants
0 Participants
n=35 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=16 Participants
0 Participants
n=19 Participants
0 Participants
n=35 Participants
Race (NIH/OMB)
Black or African American
0 Participants
n=16 Participants
1 Participants
n=19 Participants
1 Participants
n=35 Participants
Race (NIH/OMB)
White
16 Participants
n=16 Participants
17 Participants
n=19 Participants
33 Participants
n=35 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=16 Participants
0 Participants
n=19 Participants
0 Participants
n=35 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=16 Participants
1 Participants
n=19 Participants
1 Participants
n=35 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants
n=16 Participants
1 Participants
n=19 Participants
2 Participants
n=35 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
15 Participants
n=16 Participants
16 Participants
n=19 Participants
31 Participants
n=35 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=16 Participants
2 Participants
n=19 Participants
2 Participants
n=35 Participants
Birth weight
3.0 kilograms
STANDARD_DEVIATION 0.4 • n=16 Participants
2.9 kilograms
STANDARD_DEVIATION 0.5 • n=19 Participants
3.0 kilograms
STANDARD_DEVIATION 0.5 • n=35 Participants
Head Circumference
33.2 centimeters
STANDARD_DEVIATION 1.6 • n=16 Participants
32.9 centimeters
STANDARD_DEVIATION 2.3 • n=19 Participants
33.0 centimeters
STANDARD_DEVIATION 2.0 • n=35 Participants
Gestational Age
39.4 weeks
STANDARD_DEVIATION 1.2 • n=16 Participants
38.9 weeks
STANDARD_DEVIATION 1.6 • n=19 Participants
39.1 weeks
STANDARD_DEVIATION 1.4 • n=35 Participants
Delivery, Vaginal
11 Participants
n=16 Participants
11 Participants
n=19 Participants
22 Participants
n=35 Participants
Mother's Age
33.4 years
STANDARD_DEVIATION 4.4 • n=16 Participants
32.8 years
STANDARD_DEVIATION 4.8 • n=19 Participants
33.1 years
STANDARD_DEVIATION 4.5 • n=35 Participants
Maternal Gravida
3.6 pregnancies
STANDARD_DEVIATION 1.6 • n=16 Participants
4.0 pregnancies
STANDARD_DEVIATION 2.1 • n=19 Participants
3.8 pregnancies
STANDARD_DEVIATION 1.9 • n=35 Participants
Public Insurance
16 Participants
n=16 Participants
17 Participants
n=19 Participants
33 Participants
n=35 Participants
Maternal Opioid
Methadone
11 Participants
n=16 Participants
14 Participants
n=19 Participants
25 Participants
n=35 Participants
Maternal Opioid
Buprenorphine
5 Participants
n=16 Participants
5 Participants
n=19 Participants
10 Participants
n=35 Participants
Maternal Opioid Dose
Methadone
87.0 milligrams
STANDARD_DEVIATION 43.6 • n=11 Participants • Out of the number of participants taking each drug.
79.4 milligrams
STANDARD_DEVIATION 40.0 • n=14 Participants • Out of the number of participants taking each drug.
82.7 milligrams
STANDARD_DEVIATION 40.3 • n=25 Participants • Out of the number of participants taking each drug.
Maternal Opioid Dose
Buprenorphine
10.0 milligrams
STANDARD_DEVIATION 8.3 • n=5 Participants • Out of the number of participants taking each drug.
10.4 milligrams
STANDARD_DEVIATION 7.8 • n=5 Participants • Out of the number of participants taking each drug.
10.2 milligrams
STANDARD_DEVIATION 7.6 • n=10 Participants • Out of the number of participants taking each drug.
Poly-opioid Use
3 Participants
n=16 Participants
4 Participants
n=19 Participants
7 Participants
n=35 Participants
Polysubstance Use
7 Participants
n=16 Participants
8 Participants
n=19 Participants
15 Participants
n=35 Participants
Caregiver Current Smoker
10 Participants
n=16 Participants
14 Participants
n=19 Participants
24 Participants
n=35 Participants

PRIMARY outcome

Timeframe: 2 weeks

this will be measured by twice daily weights while in the hospital and once daily weights at home for two weeks after birth compared with birth weight

Outcome measures

Outcome measures
Measure
Standard Calorie Formula
n=16 Participants
Infant randomly assigned to standard-calorie formula for 14 days
High-calorie Formula
n=19 Participants
Infant randomly assigned to high-calorie formula for 14 days
Maximal Percent Weight Loss Compared to Birth Weight
-5.4 percent weight loss
Interval -7.7 to -4.0
-9.1 percent weight loss
Interval -10.4 to -8.2

SECONDARY outcome

Timeframe: 2 weeks

Measured by determining the days of life that the maximal percent weight loss was obtained for each patient, assessed within the first two weeks after birth

Outcome measures

Outcome measures
Measure
Standard Calorie Formula
n=16 Participants
Infant randomly assigned to standard-calorie formula for 14 days
High-calorie Formula
n=19 Participants
Infant randomly assigned to high-calorie formula for 14 days
Median Days to Weight Nadir
3.5 days
Interval 2.0 to 5.0
4.0 days
Interval 3.0 to 4.0

SECONDARY outcome

Timeframe: 1 month

Number of participants that regained birthweight, assessed within the first month after birth

Outcome measures

Outcome measures
Measure
Standard Calorie Formula
n=16 Participants
Infant randomly assigned to standard-calorie formula for 14 days
High-calorie Formula
n=19 Participants
Infant randomly assigned to high-calorie formula for 14 days
Number of Participants That Return to Birthweight
Yes
8 Participants
9 Participants
Number of Participants That Return to Birthweight
No
3 Participants
7 Participants
Number of Participants That Return to Birthweight
Unknown
5 Participants
3 Participants

SECONDARY outcome

Timeframe: first 7 days after birth

Measured by comparing the weight from the weight obtained the day prior, assessed daily for the first 7 days after birth

Outcome measures

Outcome measures
Measure
Standard Calorie Formula
n=16 Participants
Infant randomly assigned to standard-calorie formula for 14 days
High-calorie Formula
n=19 Participants
Infant randomly assigned to high-calorie formula for 14 days
Percent Weight Change Per Day
Day 4
-5.7 percentage weight change
Standard Deviation 3.0
-8.70 percentage weight change
Standard Deviation 2.50
Percent Weight Change Per Day
Day 5
-5.67 percentage weight change
Standard Deviation 3.65
-8.17 percentage weight change
Standard Deviation 3.02
Percent Weight Change Per Day
Day 6
-5.29 percentage weight change
Standard Deviation 5.01
-7.00 percentage weight change
Standard Deviation 2.85
Percent Weight Change Per Day
Day 7
-2.34 percentage weight change
Standard Deviation 9.48
-5.94 percentage weight change
Standard Deviation 3.27
Percent Weight Change Per Day
Day 1
-1.43 percentage weight change
Standard Deviation 1.95
-2.76 percentage weight change
Standard Deviation 2.16
Percent Weight Change Per Day
Day 2
-4.85 percentage weight change
Standard Deviation 1.99
-6.50 percentage weight change
Standard Deviation 3.5
Percent Weight Change Per Day
Day 3
-4.99 percentage weight change
Standard Deviation 3.2
-8.52 percentage weight change
Standard Deviation 1.92

SECONDARY outcome

Timeframe: up to 6.5 days

Measured by comparing admission time to discharge time, assessed at hospital discharge

Outcome measures

Outcome measures
Measure
Standard Calorie Formula
n=16 Participants
Infant randomly assigned to standard-calorie formula for 14 days
High-calorie Formula
n=19 Participants
Infant randomly assigned to high-calorie formula for 14 days
Length of Hospital Stay
4.4 days
Standard Deviation 2.5
4.1 days
Standard Deviation 1.4

Adverse Events

Standard Calorie Formula

Serious events: 0 serious events
Other events: 1 other events
Deaths: 0 deaths

High-calorie Formula

Serious events: 0 serious events
Other events: 3 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
Standard Calorie Formula
n=16 participants at risk
Infant randomly assigned to standard-calorie formula for 14 days
High-calorie Formula
n=19 participants at risk
Infant randomly assigned to high-calorie formula for 14 days
Metabolism and nutrition disorders
Weight loss
6.2%
1/16 • 1 month
15.8%
3/19 • 1 month

Additional Information

Frances Cheng

Yale School of Medicine

Phone: 475-355-4483

Results disclosure agreements

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