Trial Outcomes & Findings for Physiologic Approach to Sodium Supplementation in Premature Infants (NCT NCT03889197)

NCT ID: NCT03889197

Last Updated: 2024-11-22

Results Overview

Evaluated by the change in Z-score (standard score) provides a measure of how many standard deviations above or below the population mean the infant weight is. A Z-score of 0 represents the population mean. A positive z-score would indicate better growth.

Recruitment status

COMPLETED

Study phase

PHASE4

Target enrollment

90 participants

Primary outcome timeframe

between 2 weeks of age and 36 weeks post-menstrual age or transfer from the NICU (whichever occurs first).

Results posted on

2024-11-22

Participant Flow

Participants were recruited from 3 level III NICUs and 1 level IV NICU within an academic health care system between July 2019 and August 2023.

Of the 385 infants screened for eligibility, 260 met inclusion/exclusion criteria, and 90 provided informed consent.

Participant milestones

Participant milestones
Measure
Control
Standard of care sodium supplementation as directed by the medical care team
Sodium Supplementation Algorithm
Beginning on the 14th -16th postnatal day and continuing until 36 weeks postmenstrual age, infants randomized to the algorithm will have a spot urine sodium concentration determined every two weeks and sodium supplementation provided according to the algorithm. Sodium supplementation guided by urine sodium concentration algorithm: 4 mEq/kg/d sodium added the first time urine \[Na\] below threshold; for each subsequent time urine \[Na\] below threshold, add additional 2 mEq/kg/d.
Overall Study
STARTED
45
45
Overall Study
COMPLETED
43
43
Overall Study
NOT COMPLETED
2
2

Reasons for withdrawal

Reasons for withdrawal
Measure
Control
Standard of care sodium supplementation as directed by the medical care team
Sodium Supplementation Algorithm
Beginning on the 14th -16th postnatal day and continuing until 36 weeks postmenstrual age, infants randomized to the algorithm will have a spot urine sodium concentration determined every two weeks and sodium supplementation provided according to the algorithm. Sodium supplementation guided by urine sodium concentration algorithm: 4 mEq/kg/d sodium added the first time urine \[Na\] below threshold; for each subsequent time urine \[Na\] below threshold, add additional 2 mEq/kg/d.
Overall Study
Withdrawal by Subject
1
0
Overall Study
Physician Decision
0
1
Overall Study
met exclusion criteria
0
1
Overall Study
Protocol Violation
1
0

Baseline Characteristics

Data was missing for 1 participant in the control arm because it was not collected.

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Control
n=43 Participants
Standard of care sodium supplementation as directed by the medical care team
Sodium Supplementation Algorithm
n=43 Participants
Beginning on the 14th -16th postnatal day and continuing until 36 weeks postmenstrual age, infants randomized to the algorithm will have a spot urine sodium concentration determined every two weeks and sodium supplementation provided according to the algorithm. Sodium supplementation guided by urine sodium concentration algorithm: 4 mEq/kg/d sodium added the first time urine \[Na\] below threshold; for each subsequent time urine \[Na\] below threshold, add additional 2 mEq/kg/d.
Total
n=86 Participants
Total of all reporting groups
Age, Continuous
28.00 weeks
STANDARD_DEVIATION 1.44 • n=43 Participants
27.87 weeks
STANDARD_DEVIATION 1.36 • n=43 Participants
27.93 weeks
STANDARD_DEVIATION 1.40 • n=86 Participants
Sex: Female, Male
Female
24 Participants
n=43 Participants
24 Participants
n=43 Participants
48 Participants
n=86 Participants
Sex: Female, Male
Male
19 Participants
n=43 Participants
19 Participants
n=43 Participants
38 Participants
n=86 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
8 Participants
n=43 Participants
5 Participants
n=43 Participants
13 Participants
n=86 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
34 Participants
n=43 Participants
38 Participants
n=43 Participants
72 Participants
n=86 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
1 Participants
n=43 Participants
0 Participants
n=43 Participants
1 Participants
n=86 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=43 Participants
0 Participants
n=43 Participants
0 Participants
n=86 Participants
Race (NIH/OMB)
Asian
0 Participants
n=43 Participants
0 Participants
n=43 Participants
0 Participants
n=86 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=43 Participants
0 Participants
n=43 Participants
0 Participants
n=86 Participants
Race (NIH/OMB)
Black or African American
14 Participants
n=43 Participants
11 Participants
n=43 Participants
25 Participants
n=86 Participants
Race (NIH/OMB)
White
26 Participants
n=43 Participants
30 Participants
n=43 Participants
56 Participants
n=86 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=43 Participants
0 Participants
n=43 Participants
0 Participants
n=86 Participants
Race (NIH/OMB)
Unknown or Not Reported
3 Participants
n=43 Participants
2 Participants
n=43 Participants
5 Participants
n=86 Participants
Region of Enrollment
United States
43 Participants
n=43 Participants
43 Participants
n=43 Participants
86 Participants
n=86 Participants
Singleton
30 Participants
n=43 Participants
38 Participants
n=43 Participants
68 Participants
n=86 Participants
Inborn
40 Participants
n=43 Participants
41 Participants
n=43 Participants
81 Participants
n=86 Participants
Birth Weight
1.14 kilograms
STANDARD_DEVIATION 0.24 • n=43 Participants
1.13 kilograms
STANDARD_DEVIATION 0.28 • n=43 Participants
1.13 kilograms
STANDARD_DEVIATION 0.26 • n=86 Participants
Birth Weight z-score
0.45 Z-score
STANDARD_DEVIATION 0.93 • n=43 Participants
0.24 Z-score
STANDARD_DEVIATION 0.96 • n=43 Participants
0.35 Z-score
STANDARD_DEVIATION 0.94 • n=86 Participants
Birth Length
36.05 cm
STANDARD_DEVIATION 3.04 • n=42 Participants • Data was missing for 1 participant in the control arm because it was not collected.
36.29 cm
STANDARD_DEVIATION 3.03 • n=43 Participants • Data was missing for 1 participant in the control arm because it was not collected.
36.17 cm
STANDARD_DEVIATION 3.02 • n=85 Participants • Data was missing for 1 participant in the control arm because it was not collected.
Birth Length z-score
0.04 Z-score
STANDARD_DEVIATION 1.10 • n=42 Participants • Data was missing for 1 participant in the control arm because it was not collected.
-0.11 Z-score
STANDARD_DEVIATION 1.63 • n=43 Participants • Data was missing for 1 participant in the control arm because it was not collected.
-0.03 Z-score
STANDARD_DEVIATION 1.39 • n=85 Participants • Data was missing for 1 participant in the control arm because it was not collected.
Birth Head Circumference
25.70 cm
STANDARD_DEVIATION 1.82 • n=43 Participants
25.16 cm
STANDARD_DEVIATION 2.12 • n=43 Participants
25.43 cm
STANDARD_DEVIATION 1.98 • n=86 Participants
Birth Head Circumference z-score
0.25 Z-score
STANDARD_DEVIATION 0.99 • n=43 Participants
-0.16 Z-score
STANDARD_DEVIATION 1.18 • n=43 Participants
0.05 Z-score
STANDARD_DEVIATION 1.10 • n=86 Participants
Small for Gestational Age (< 3rd percentile)
2 participants
n=43 Participants
2 participants
n=43 Participants
4 participants
n=86 Participants
Received Antenatal glucocorticoids
34 Participants
n=43 Participants
40 Participants
n=43 Participants
74 Participants
n=86 Participants
Cesarian Delivery
34 Participants
n=43 Participants
31 Participants
n=43 Participants
65 Participants
n=86 Participants
Apgar Score at 1 minute
4.51 scores on a scale
STANDARD_DEVIATION 2.29 • n=43 Participants
4.77 scores on a scale
STANDARD_DEVIATION 2.11 • n=43 Participants
4.64 scores on a scale
STANDARD_DEVIATION 2.20 • n=86 Participants
Apgar Score at 5 minutes
6.53 scores on a scale
STANDARD_DEVIATION 2.11 • n=43 Participants
6.56 scores on a scale
STANDARD_DEVIATION 1.59 • n=43 Participants
6.55 scores on a scale
STANDARD_DEVIATION 1.86 • n=86 Participants
Age at Randomization
14.35 Days
STANDARD_DEVIATION 1.23 • n=43 Participants
14.33 Days
STANDARD_DEVIATION 1.23 • n=43 Participants
14.34 Days
STANDARD_DEVIATION 1.22 • n=86 Participants

PRIMARY outcome

Timeframe: between 2 weeks of age and 36 weeks post-menstrual age or transfer from the NICU (whichever occurs first).

Evaluated by the change in Z-score (standard score) provides a measure of how many standard deviations above or below the population mean the infant weight is. A Z-score of 0 represents the population mean. A positive z-score would indicate better growth.

Outcome measures

Outcome measures
Measure
Control
n=43 Participants
Standard of care sodium supplementation as directed by the medical care team
Sodium Supplementation Algorithm
n=43 Participants
Beginning on the 14th -16th postnatal day and continuing until 36 weeks postmenstrual age, infants randomized to the algorithm will have a spot urine sodium concentration determined every two weeks and sodium supplementation provided according to the algorithm. Sodium supplementation guided by urine sodium concentration algorithm: 4 mEq/kg/d sodium added the first time urine \[Na\] below threshold; for each subsequent time urine \[Na\] below threshold, add additional 2 mEq/kg/d.
Change in Somatic Growth (Weight)
0.04 score on a scale
Standard Deviation 0.63
0.16 score on a scale
Standard Deviation 0.41

PRIMARY outcome

Timeframe: between 2 weeks of age and 36 weeks post-menstrual age or transfer from the NICU (whichever occurs first).

Evaluated by the change in Z-score (standard score) provides a measure of how many standard deviations above or below the population mean the infant length is. A Z-score of 0 represents the population mean. A positive z-score would indicate better growth.

Outcome measures

Outcome measures
Measure
Control
n=43 Participants
Standard of care sodium supplementation as directed by the medical care team
Sodium Supplementation Algorithm
n=43 Participants
Beginning on the 14th -16th postnatal day and continuing until 36 weeks postmenstrual age, infants randomized to the algorithm will have a spot urine sodium concentration determined every two weeks and sodium supplementation provided according to the algorithm. Sodium supplementation guided by urine sodium concentration algorithm: 4 mEq/kg/d sodium added the first time urine \[Na\] below threshold; for each subsequent time urine \[Na\] below threshold, add additional 2 mEq/kg/d.
Change in Somatic Growth (Length)
-0.34 score on a scale
Standard Deviation 0.66
-0.48 score on a scale
Standard Deviation 0.48

PRIMARY outcome

Timeframe: between 2 weeks of age and 36 weeks post-menstrual age or transfer from the NICU (whichever occurs first).

Evaluated by the change in Z-score (standard score) provides a measure of how many standard deviations above or below the population mean the infant head circumference is. A Z-score of 0 represents the population mean. A positive z-score would indicate better growth.

Outcome measures

Outcome measures
Measure
Control
n=43 Participants
Standard of care sodium supplementation as directed by the medical care team
Sodium Supplementation Algorithm
n=43 Participants
Beginning on the 14th -16th postnatal day and continuing until 36 weeks postmenstrual age, infants randomized to the algorithm will have a spot urine sodium concentration determined every two weeks and sodium supplementation provided according to the algorithm. Sodium supplementation guided by urine sodium concentration algorithm: 4 mEq/kg/d sodium added the first time urine \[Na\] below threshold; for each subsequent time urine \[Na\] below threshold, add additional 2 mEq/kg/d.
Change in Somatic Growth (Head Circumference)
0.60 score on a scale
Standard Deviation 0.88
0.54 score on a scale
Standard Deviation 0.57

SECONDARY outcome

Timeframe: between 2 weeks of age and discharge/transfer from hospital, up to 44 weeks post-menstrual age (whichever occurs first).

Evaluated by the change in Z-score (standard score) provides a measure of how many standard deviations above or below the population mean the infant weight is. A Z-score of 0 represents the population mean. A positive z-score would indicate better growth.

Outcome measures

Outcome measures
Measure
Control
n=43 Participants
Standard of care sodium supplementation as directed by the medical care team
Sodium Supplementation Algorithm
n=43 Participants
Beginning on the 14th -16th postnatal day and continuing until 36 weeks postmenstrual age, infants randomized to the algorithm will have a spot urine sodium concentration determined every two weeks and sodium supplementation provided according to the algorithm. Sodium supplementation guided by urine sodium concentration algorithm: 4 mEq/kg/d sodium added the first time urine \[Na\] below threshold; for each subsequent time urine \[Na\] below threshold, add additional 2 mEq/kg/d.
Change in Somatic Growth (Weight) at Discharge/Transfer
0.04 score on a scale
Standard Deviation 0.80
0.24 score on a scale
Standard Deviation 0.76

SECONDARY outcome

Timeframe: between 2 weeks of age and discharge/transfer from hospital, up to 44 weeks post-menstrual age (whichever occurs first).

evaluated by the change in kilograms

Outcome measures

Outcome measures
Measure
Control
n=43 Participants
Standard of care sodium supplementation as directed by the medical care team
Sodium Supplementation Algorithm
n=43 Participants
Beginning on the 14th -16th postnatal day and continuing until 36 weeks postmenstrual age, infants randomized to the algorithm will have a spot urine sodium concentration determined every two weeks and sodium supplementation provided according to the algorithm. Sodium supplementation guided by urine sodium concentration algorithm: 4 mEq/kg/d sodium added the first time urine \[Na\] below threshold; for each subsequent time urine \[Na\] below threshold, add additional 2 mEq/kg/d.
Change in Somatic Growth (Weight) at Discharge/Transfer
2.00 kilograms
Standard Deviation 0.76
2.14 kilograms
Standard Deviation 0.82

SECONDARY outcome

Timeframe: between 2 weeks of age and discharge/transfer from the NICU or 44 weeks post-menstrual age (whichever occurs first)

Evaluated by the change in Z-score (standard score) provides a measure of how many standard deviations above or below the population mean the infant length is. A Z-score of 0 represents the population mean. A positive z-score would indicate better growth.

Outcome measures

Outcome measures
Measure
Control
n=43 Participants
Standard of care sodium supplementation as directed by the medical care team
Sodium Supplementation Algorithm
n=43 Participants
Beginning on the 14th -16th postnatal day and continuing until 36 weeks postmenstrual age, infants randomized to the algorithm will have a spot urine sodium concentration determined every two weeks and sodium supplementation provided according to the algorithm. Sodium supplementation guided by urine sodium concentration algorithm: 4 mEq/kg/d sodium added the first time urine \[Na\] below threshold; for each subsequent time urine \[Na\] below threshold, add additional 2 mEq/kg/d.
Change in Somatic Growth (Length) at Discharge/Transfer
-0.39 score on a scale
Standard Deviation 0.96
0.92 score on a scale
Standard Deviation 8.56

SECONDARY outcome

Timeframe: between 2 weeks of age and discharge/transfer from the NICU or 44 weeks post-menstrual age (whichever occurs first)

Evaluated by the change in Z-score (standard score) provides a measure of how many standard deviations above or below the population mean the infant head circumference is. A Z-score of 0 represents the population mean. A positive z-score would indicate better growth.

Outcome measures

Outcome measures
Measure
Control
n=43 Participants
Standard of care sodium supplementation as directed by the medical care team
Sodium Supplementation Algorithm
n=43 Participants
Beginning on the 14th -16th postnatal day and continuing until 36 weeks postmenstrual age, infants randomized to the algorithm will have a spot urine sodium concentration determined every two weeks and sodium supplementation provided according to the algorithm. Sodium supplementation guided by urine sodium concentration algorithm: 4 mEq/kg/d sodium added the first time urine \[Na\] below threshold; for each subsequent time urine \[Na\] below threshold, add additional 2 mEq/kg/d.
Change in Somatic Growth (Head Circumference) at Discharge/Transfer
1.03 score on a scale
Standard Deviation 1.07
2.07 score on a scale
Standard Deviation 7.39

SECONDARY outcome

Timeframe: between 2 weeks of age and discharge/transfer from the NICU or 44 weeks post-menstrual age (whichever occurs first)

number of participants who received diuretic therapy

Outcome measures

Outcome measures
Measure
Control
n=43 Participants
Standard of care sodium supplementation as directed by the medical care team
Sodium Supplementation Algorithm
n=43 Participants
Beginning on the 14th -16th postnatal day and continuing until 36 weeks postmenstrual age, infants randomized to the algorithm will have a spot urine sodium concentration determined every two weeks and sodium supplementation provided according to the algorithm. Sodium supplementation guided by urine sodium concentration algorithm: 4 mEq/kg/d sodium added the first time urine \[Na\] below threshold; for each subsequent time urine \[Na\] below threshold, add additional 2 mEq/kg/d.
Received Diuretic Therapy
7 Participants
11 Participants

SECONDARY outcome

Timeframe: from birth to discharge/transfer from the NICU or 44 weeks post-menstrual age (whichever occurs first)

days on assisted ventilation

Outcome measures

Outcome measures
Measure
Control
n=43 Participants
Standard of care sodium supplementation as directed by the medical care team
Sodium Supplementation Algorithm
n=43 Participants
Beginning on the 14th -16th postnatal day and continuing until 36 weeks postmenstrual age, infants randomized to the algorithm will have a spot urine sodium concentration determined every two weeks and sodium supplementation provided according to the algorithm. Sodium supplementation guided by urine sodium concentration algorithm: 4 mEq/kg/d sodium added the first time urine \[Na\] below threshold; for each subsequent time urine \[Na\] below threshold, add additional 2 mEq/kg/d.
Duration of Mechanical Ventilation
12.60 Days
Standard Deviation 44.38
8.74 Days
Standard Deviation 16.08

SECONDARY outcome

Timeframe: assessed at discharge/transfer from the NICU or 44 weeks post-menstrual age (whichever occurs first)

supplemental oxygen requirement

Outcome measures

Outcome measures
Measure
Control
n=43 Participants
Standard of care sodium supplementation as directed by the medical care team
Sodium Supplementation Algorithm
n=43 Participants
Beginning on the 14th -16th postnatal day and continuing until 36 weeks postmenstrual age, infants randomized to the algorithm will have a spot urine sodium concentration determined every two weeks and sodium supplementation provided according to the algorithm. Sodium supplementation guided by urine sodium concentration algorithm: 4 mEq/kg/d sodium added the first time urine \[Na\] below threshold; for each subsequent time urine \[Na\] below threshold, add additional 2 mEq/kg/d.
Need for Supplemental Oxygen at Discharge
7 Participants
13 Participants

SECONDARY outcome

Timeframe: determined at 36 weeks post-menstrual age

Jenson definition of bronchopulmonary dysplasia (BPD), rated 0 - 3; with 0 being no BPD and higher numbers being more severe disease

Outcome measures

Outcome measures
Measure
Control
n=43 Participants
Standard of care sodium supplementation as directed by the medical care team
Sodium Supplementation Algorithm
n=43 Participants
Beginning on the 14th -16th postnatal day and continuing until 36 weeks postmenstrual age, infants randomized to the algorithm will have a spot urine sodium concentration determined every two weeks and sodium supplementation provided according to the algorithm. Sodium supplementation guided by urine sodium concentration algorithm: 4 mEq/kg/d sodium added the first time urine \[Na\] below threshold; for each subsequent time urine \[Na\] below threshold, add additional 2 mEq/kg/d.
Incidence and Severity of Bronchopulmonary Dysplasia (BPD)
Grade 0
16 Participants
15 Participants
Incidence and Severity of Bronchopulmonary Dysplasia (BPD)
Grade 1
11 Participants
10 Participants
Incidence and Severity of Bronchopulmonary Dysplasia (BPD)
Grade 2
12 Participants
16 Participants
Incidence and Severity of Bronchopulmonary Dysplasia (BPD)
Grade 3
4 Participants
2 Participants

SECONDARY outcome

Timeframe: assessed at discharge/transfer from the NICU or 44 weeks post-menstrual age (whichever occurs first)

Number of participants with Retinopathy of prematurity ≥ Stage 3 as diagnosed by examination of an Ophthalmologist finding abnormal retinal blood vessel growth with ridge formation or retinal detachment.

Outcome measures

Outcome measures
Measure
Control
n=43 Participants
Standard of care sodium supplementation as directed by the medical care team
Sodium Supplementation Algorithm
n=43 Participants
Beginning on the 14th -16th postnatal day and continuing until 36 weeks postmenstrual age, infants randomized to the algorithm will have a spot urine sodium concentration determined every two weeks and sodium supplementation provided according to the algorithm. Sodium supplementation guided by urine sodium concentration algorithm: 4 mEq/kg/d sodium added the first time urine \[Na\] below threshold; for each subsequent time urine \[Na\] below threshold, add additional 2 mEq/kg/d.
Retinopathy of Prematurity ≥ Stage 3
4 Participants
2 Participants

SECONDARY outcome

Timeframe: determined during participants 32nd post-menstrual week of life

Population: Samples not collected for 6 Control participants and 4 Sodium supplementation algorithm participants.

Calculated by the doubly labeled water method in ml/kg

Outcome measures

Outcome measures
Measure
Control
n=37 Participants
Standard of care sodium supplementation as directed by the medical care team
Sodium Supplementation Algorithm
n=39 Participants
Beginning on the 14th -16th postnatal day and continuing until 36 weeks postmenstrual age, infants randomized to the algorithm will have a spot urine sodium concentration determined every two weeks and sodium supplementation provided according to the algorithm. Sodium supplementation guided by urine sodium concentration algorithm: 4 mEq/kg/d sodium added the first time urine \[Na\] below threshold; for each subsequent time urine \[Na\] below threshold, add additional 2 mEq/kg/d.
Total Body Water
755.5 ml/kg of water
Standard Deviation 41.4
756.2 ml/kg of water
Standard Deviation 41.6

SECONDARY outcome

Timeframe: determined during the participants 32nd post-menstrual week of life

Population: Samples were not collected for 2 Control participants and 1 Sodium supplementation algorithm participant.

Calculated using the doubly labeled water method

Outcome measures

Outcome measures
Measure
Control
n=41 Participants
Standard of care sodium supplementation as directed by the medical care team
Sodium Supplementation Algorithm
n=42 Participants
Beginning on the 14th -16th postnatal day and continuing until 36 weeks postmenstrual age, infants randomized to the algorithm will have a spot urine sodium concentration determined every two weeks and sodium supplementation provided according to the algorithm. Sodium supplementation guided by urine sodium concentration algorithm: 4 mEq/kg/d sodium added the first time urine \[Na\] below threshold; for each subsequent time urine \[Na\] below threshold, add additional 2 mEq/kg/d.
Energy Expenditure
61.6 kcal/kg/d
Standard Deviation 9.6
65.4 kcal/kg/d
Standard Deviation 9.8

Adverse Events

Control

Serious events: 3 serious events
Other events: 5 other events
Deaths: 0 deaths

Sodium Supplementation Algorithm

Serious events: 2 serious events
Other events: 9 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Control
n=43 participants at risk
Standard of care sodium supplementation as directed by the medical care team
Sodium Supplementation Algorithm
n=43 participants at risk
Beginning on the 14th -16th postnatal day and continuing until 36 weeks postmenstrual age, infants randomized to the algorithm will have a spot urine sodium concentration determined every two weeks and sodium supplementation provided according to the algorithm. Sodium supplementation guided by urine sodium concentration algorithm: 4 mEq/kg/d sodium added the first time urine \[Na\] below threshold; for each subsequent time urine \[Na\] below threshold, add additional 2 mEq/kg/d.
Metabolism and nutrition disorders
Hyponatremia
4.7%
2/43 • Number of events 2 • from study intervention (~ 2 weeks of age) until 36 weeks post-menstrual age or participant discharged or transferred to another hospital (whichever occurred first).
Extremely preterm infants commonly have multiple clinical complications and laboratory abnormalities associated with prematurity. Special clinical outcomes of interest are listed in secondary outcomes.
0.00%
0/43 • from study intervention (~ 2 weeks of age) until 36 weeks post-menstrual age or participant discharged or transferred to another hospital (whichever occurred first).
Extremely preterm infants commonly have multiple clinical complications and laboratory abnormalities associated with prematurity. Special clinical outcomes of interest are listed in secondary outcomes.
Blood and lymphatic system disorders
Edema/Anasarca
2.3%
1/43 • Number of events 1 • from study intervention (~ 2 weeks of age) until 36 weeks post-menstrual age or participant discharged or transferred to another hospital (whichever occurred first).
Extremely preterm infants commonly have multiple clinical complications and laboratory abnormalities associated with prematurity. Special clinical outcomes of interest are listed in secondary outcomes.
0.00%
0/43 • from study intervention (~ 2 weeks of age) until 36 weeks post-menstrual age or participant discharged or transferred to another hospital (whichever occurred first).
Extremely preterm infants commonly have multiple clinical complications and laboratory abnormalities associated with prematurity. Special clinical outcomes of interest are listed in secondary outcomes.
Renal and urinary disorders
Acute kidney injury
2.3%
1/43 • Number of events 1 • from study intervention (~ 2 weeks of age) until 36 weeks post-menstrual age or participant discharged or transferred to another hospital (whichever occurred first).
Extremely preterm infants commonly have multiple clinical complications and laboratory abnormalities associated with prematurity. Special clinical outcomes of interest are listed in secondary outcomes.
0.00%
0/43 • from study intervention (~ 2 weeks of age) until 36 weeks post-menstrual age or participant discharged or transferred to another hospital (whichever occurred first).
Extremely preterm infants commonly have multiple clinical complications and laboratory abnormalities associated with prematurity. Special clinical outcomes of interest are listed in secondary outcomes.
Nervous system disorders
Seizure
2.3%
1/43 • Number of events 1 • from study intervention (~ 2 weeks of age) until 36 weeks post-menstrual age or participant discharged or transferred to another hospital (whichever occurred first).
Extremely preterm infants commonly have multiple clinical complications and laboratory abnormalities associated with prematurity. Special clinical outcomes of interest are listed in secondary outcomes.
0.00%
0/43 • from study intervention (~ 2 weeks of age) until 36 weeks post-menstrual age or participant discharged or transferred to another hospital (whichever occurred first).
Extremely preterm infants commonly have multiple clinical complications and laboratory abnormalities associated with prematurity. Special clinical outcomes of interest are listed in secondary outcomes.
Infections and infestations
bacteremia
0.00%
0/43 • from study intervention (~ 2 weeks of age) until 36 weeks post-menstrual age or participant discharged or transferred to another hospital (whichever occurred first).
Extremely preterm infants commonly have multiple clinical complications and laboratory abnormalities associated with prematurity. Special clinical outcomes of interest are listed in secondary outcomes.
2.3%
1/43 • Number of events 1 • from study intervention (~ 2 weeks of age) until 36 weeks post-menstrual age or participant discharged or transferred to another hospital (whichever occurred first).
Extremely preterm infants commonly have multiple clinical complications and laboratory abnormalities associated with prematurity. Special clinical outcomes of interest are listed in secondary outcomes.
Infections and infestations
Pneumonia
2.3%
1/43 • Number of events 3 • from study intervention (~ 2 weeks of age) until 36 weeks post-menstrual age or participant discharged or transferred to another hospital (whichever occurred first).
Extremely preterm infants commonly have multiple clinical complications and laboratory abnormalities associated with prematurity. Special clinical outcomes of interest are listed in secondary outcomes.
0.00%
0/43 • from study intervention (~ 2 weeks of age) until 36 weeks post-menstrual age or participant discharged or transferred to another hospital (whichever occurred first).
Extremely preterm infants commonly have multiple clinical complications and laboratory abnormalities associated with prematurity. Special clinical outcomes of interest are listed in secondary outcomes.
Surgical and medical procedures
post-NEC adhesions
0.00%
0/43 • from study intervention (~ 2 weeks of age) until 36 weeks post-menstrual age or participant discharged or transferred to another hospital (whichever occurred first).
Extremely preterm infants commonly have multiple clinical complications and laboratory abnormalities associated with prematurity. Special clinical outcomes of interest are listed in secondary outcomes.
2.3%
1/43 • Number of events 1 • from study intervention (~ 2 weeks of age) until 36 weeks post-menstrual age or participant discharged or transferred to another hospital (whichever occurred first).
Extremely preterm infants commonly have multiple clinical complications and laboratory abnormalities associated with prematurity. Special clinical outcomes of interest are listed in secondary outcomes.

Other adverse events

Other adverse events
Measure
Control
n=43 participants at risk
Standard of care sodium supplementation as directed by the medical care team
Sodium Supplementation Algorithm
n=43 participants at risk
Beginning on the 14th -16th postnatal day and continuing until 36 weeks postmenstrual age, infants randomized to the algorithm will have a spot urine sodium concentration determined every two weeks and sodium supplementation provided according to the algorithm. Sodium supplementation guided by urine sodium concentration algorithm: 4 mEq/kg/d sodium added the first time urine \[Na\] below threshold; for each subsequent time urine \[Na\] below threshold, add additional 2 mEq/kg/d.
Metabolism and nutrition disorders
Hypernatremia
4.7%
2/43 • Number of events 2 • from study intervention (~ 2 weeks of age) until 36 weeks post-menstrual age or participant discharged or transferred to another hospital (whichever occurred first).
Extremely preterm infants commonly have multiple clinical complications and laboratory abnormalities associated with prematurity. Special clinical outcomes of interest are listed in secondary outcomes.
9.3%
4/43 • Number of events 4 • from study intervention (~ 2 weeks of age) until 36 weeks post-menstrual age or participant discharged or transferred to another hospital (whichever occurred first).
Extremely preterm infants commonly have multiple clinical complications and laboratory abnormalities associated with prematurity. Special clinical outcomes of interest are listed in secondary outcomes.
Metabolism and nutrition disorders
Hyponatremia
11.6%
5/43 • Number of events 15 • from study intervention (~ 2 weeks of age) until 36 weeks post-menstrual age or participant discharged or transferred to another hospital (whichever occurred first).
Extremely preterm infants commonly have multiple clinical complications and laboratory abnormalities associated with prematurity. Special clinical outcomes of interest are listed in secondary outcomes.
16.3%
7/43 • Number of events 14 • from study intervention (~ 2 weeks of age) until 36 weeks post-menstrual age or participant discharged or transferred to another hospital (whichever occurred first).
Extremely preterm infants commonly have multiple clinical complications and laboratory abnormalities associated with prematurity. Special clinical outcomes of interest are listed in secondary outcomes.

Additional Information

Kelly Mosesso, MA; Biostatistician II

Department of Biostatistics and Health Data Science, Indiana University School of Medicine

Phone: 317-278-5439

Results disclosure agreements

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