Preterm BirthNCT05546814
Impact of Dietary Sodium Supplementation on Growth & Intestinal Microbiome
A study testing Sodium algorithm in people with Preterm Birth, run by Medical College of Wisconsin at 1 site in United States.
Trial summary
The purpose of this project is to determine the direct impact of sodium supplementation in preterm infants and to see the overall improvement of their growth and health status. from this study will help us develop a better treatment for in the future. Read more about this study
- Who is it for?
- Ages 25 to 30 weeksHealthy volunteers can take part
- Conditions the study is for
- Preterm Birth
- What is being tested?
- Sodium algorithm
- Type of treatment
- Surgery or procedure
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 6 participants
- Where
- 1 siteUnited States
- Study dates
- 8 Feb 2023to 14 Apr 2025
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 25 to 30 weeks
- All sexes
- Healthy volunteers accepted
- Child
Who may be able to join
- Birthweight >500 grams and
- Gestational age at least 25 0/7weeks but less than 30 weeks.
- <14 days of age at time of randomization
Who cannot join
- Non-English speaking parents
- Major congenital anomalies
- grade underlying renal dysfunction (serum creatinine > 1.0 mg/dL or increase of >0.3 mg/DL between any two consecutive measurements)
- use of diuretics at the time initiation of intervention (approximately 14 days of age) But this is not completely an exclusion-the research can wait 2 days and at the time of 2 week time period of the study we can re check their levels
- any structural genitourinary criteria.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Impact of Dietary Sodium Supplementation on Growth & Intestinal Microbiome in Preterm Infants
The purpose of this project is to determine the direct impact of sodium supplementation in preterm infants and to see the overall improvement of their growth and health status.
from this study will help us develop a better treatment for in the future.
Read the detailed description
Premature infants are at an increased risk of postnatal growth failure and as well as developing short or long-term impaired neurodevelopment and cardio metabolic health.
For many years, it has been recognized that ideal growth is attainable with sufficient sodium intake and a positive sodium balance. The results of this study could have a significant impact on the care of preterm infants.
Infants will be randomized into one of two groups. One group will receive sodium supplementation as guided by a urine sodium concentration algorithm, one group will be managed by current standards. Randomization will occur at 2 weeks of postnatal age
Standard of care group Care for the participant will remain the same as if they were not in the study. Nutritional information, including sodium intake will be collected on three separate days weekly for 8 weeks. Stool samples will be collected for determining intestinal microbiome at 2 weeks, 5 weeks, 8 weeks and the day they are discharged from the hospital.
The study team will also collect detailed health information from participants hospital stay from the medical chart. Which will include gestational age, birth weight, sex, race ,ethnicity, mode of delivery and exposure to any steroids, antibiotics and clinical diagnoses.
Sodium supplementation group:
Participants will receive sodium supplementation per the urine sodium concentration algorithm. Urine sodium will be determined weekly, and if urine sodium concentration is below set value, dietary sodium supplementation is provided.
- Conditions
- Preterm Birth
- Being tested
- Sodium algorithm
- Medical subject headings
- Premature Birth
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Sodium algorithmProcedure or surgery
Infants will receive sodium and follow a sodium supplementation schedule or algorithm. This means that based on the sodium levels collected from the samples (stool and urine) they will receive an increase or maintain the same amount to help
| Study group | Role | What they receive |
|---|---|---|
| Sodium algorithm | Experimental | Starting at 2 weeks of age, the sodium algorithm group will be started based on their sodium levels. This will be adjusted weekly based on weight gain and sodium levels. Receives: Procedure: Sodium algorithm |
| Control | No intervention | Subjects will be cared for by current protocols |
What is being measured
The primary outcome is the main question the study is designed to answer.
Preterm infant weight gain
To determine the relationship among sodium intake, bodily growth and the gut in preterm infants
Measured: 8 weeks
Secondary outcomes (1)
Microbiome
Microbiome diversity according to study group
Measured: 8 weeks
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted21 Sep 2022
- Study start8 Feb 2023
- Primary completion14 Apr 2025
- Study completion14 Apr 2025
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Preterm BirthStudies of the same condition, open and under way.
- More trials run by Medical College of WisconsinThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Supportive care
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Model description
- Two cohorts; experimental and control
- Masking
- None (open label)
- Enrolment
- 6 participants (actual)
Sponsor and investigators
- Lead sponsor
- Medical College of Wisconsin
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Jeffrey Segar, Medical College of Wisconsin
- Investigators
- Jeffrey Segar, MD, Principal investigator, Medical College of Wisconsin
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05546814
- Sponsor's protocol ID
- IRBNet 1846631
- Status last verified
- Apr 2025
- First submitted
- 15 Sep 2022
- Last updated
- 11 Aug 2025
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 11 Aug 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Impact of Dietary Sodium Supplementation on Growth & Intestinal Microbiome in Preterm Infants
- ClinicalTrials.gov ID
- NCT05546814
- Acronym / sponsor ID
- IRBNet 1846631
- Conditions
- Preterm Birth
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 6 participants (actual)
- Lead sponsor
- Medical College of WisconsinUniversity, hospital or other
- Study start
- 8 Feb 2023 (actual)
- Primary completion
- 14 Apr 2025 (actual)
- Study completion
- 14 Apr 2025 (actual)
- First posted
- 21 Sep 2022 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The purpose of this project is to determine the direct impact of sodium supplementation in preterm infants and to see the overall improvement of their growth and health status.
from this study will help us develop a better treatment for in the future.
Detailed description
Premature infants are at an increased risk of postnatal growth failure and as well as developing short or long-term impaired neurodevelopment and cardio metabolic health.
For many years, it has been recognized that ideal growth is attainable with sufficient sodium intake and a positive sodium balance. The results of this study could have a significant impact on the care of preterm infants.
Infants will be randomized into one of two groups. One group will receive sodium supplementation as guided by a urine sodium concentration algorithm, one group will be managed by current standards. Randomization will occur at 2 weeks of postnatal age
Standard of care group Care for the participant will remain the same as if they were not in the study. Nutritional information, including sodium intake will be collected on three separate days weekly for 8 weeks. Stool samples will be collected for determining intestinal microbiome at 2 weeks, 5 weeks, 8 weeks and the day they are discharged from the hospital.
The study team will also collect detailed health information from participants hospital stay from the medical chart. Which will include gestational age, birth weight, sex, race ,ethnicity, mode of delivery and exposure to any steroids, antibiotics and clinical diagnoses.
Sodium supplementation group:
Participants will receive sodium supplementation per the urine sodium concentration algorithm. Urine sodium will be determined weekly, and if urine sodium concentration is below set value, dietary sodium supplementation is provided.
Study design
- Primary purpose
- Supportive care
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
- Model description
- Two cohorts; experimental and control
| Arm | Type | Receives |
|---|---|---|
| Sodium algorithm | Experimental | Procedure: Sodium algorithmStarting at 2 weeks of age, the sodium algorithm group will be started based on their sodium levels. This will be adjusted weekly based on weight gain and sodium levels. |
| Control | No intervention | –Subjects will be cared for by current protocols |
Who may qualify
- Ages
- 25 to 30 weeks
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Child
Key inclusion criteria (3 listed)
- Birthweight >500 grams and
- Gestational age at least 25 0/7weeks but less than 30 weeks.
- <14 days of age at time of randomization
Key exclusion criteria (5 listed)
- Non-English speaking parents
- Major congenital anomalies
- grade underlying renal dysfunction (serum creatinine > 1.0 mg/dL or increase of >0.3 mg/DL between any two consecutive measurements)
- use of diuretics at the time initiation of intervention (approximately 14 days of age) But this is not completely an exclusion-the research can wait 2 days and at the time of 2 week time period of the study we can re check their levels
- any structural genitourinary criteria.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Sodium algorithmInfants will receive sodium and follow a sodium supplementation schedule or algorithm. This means that based on the sodium levels collected from the samples (stool and urine) they will receive an increase or maintain the same amount to help | Procedure or surgery | Sodium algorithm |
Primary outcome
Preterm infant weight gain
Time frame: 8 weeks
To determine the relationship among sodium intake, bodily growth and the gut in preterm infants
1 secondary outcome
Microbiome
Time frame: 8 weeks
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 11 Aug 2025.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Jeffrey Segar, MD principal investigator
Medical College of Wisconsin
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Sodium algorithm in people with Preterm Birth, run by Medical College of Wisconsin at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 3 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 11 Aug 2025. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Preterm infant weight gain (time frame: 8 weeks). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 11 Aug 2025; AzTrials last refreshed its copy on 8 Nov 2026.