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- Klinische proef NCT07562997
Sodium and Milk Fortification Evaluation of Body Composition Among Very Preterm Infants (SAFE)
Studie Overzicht
Toestand
Gedetailleerde beschrijving
Very preterm infants (born <32 weeks gestational age) are at high risk for postnatal growth faltering, which is associated with adverse neurodevelopmental outcomes. Despite routine use of enriched human milk fortification in the NICU, many infants fail to achieve adequate somatic and lean mass growth. Sodium depletion has been identified as a potentially modifiable contributor to this problem: renal tubular immaturity in preterm infants results in obligate urinary sodium wasting. Total body sodium depletion has been associated with poor growth in infants and poor muscle mass development in animal studies.
Current NICU practice relies primarily on serum sodium to guide supplementation; however, serum sodium is a late and insensitive marker of total body sodium depletion. Urine sodium is a more sensitive indicator of sodium balance and may identify depletion before serum levels fall. Gestational-age-specific urine sodium thresholds to guide supplementation have recently been proposed (Stalter et al., 2025), but have evaluated body composition in a prospective randomized trial.
This trial tests whether a structured, urine sodium-guided supplementation protocol based on every other week urine and serum sodium monitoring improves anthropometric growth and lean mass accrual compared to standard enriched fortification alone. The intervention runs from day of life 14 through 36 weeks postmenstrual age, with tapering through 38 weeks PMA.
Body composition assessment incorporates two complementary modalities: serial point-of-care ultrasound (POCUS) of the biceps, rectus femoris, and subcutaneous fat for longitudinal lean and fat mass tracking, and Air Displacement Plethysmography (PeaPod) at 36 weeks postmenstrual age or discharge for criterion-standard whole-body composition. Fat mass, fat-free mass, and body fat percentage will be referenced against the Norris et al. preterm normative curves.
The trial uses an open-label design with block randomization stratified by gestational age. A Data Safety and Monitoring Board will conduct oversight and interim safety reviews.
Studietype
Inschrijving (Geschat)
Fase
- Niet toepasbaar
Contacten en locaties
Studiecontact
- Naam: Debbie Ng, MPH
- E-mail: ngdm@uw.edu
Studie Contact Back-up
- Naam: John Feltner, MS
- Telefoonnummer: (206) 543-3200
- E-mail: jfeltner@uw.edu
Studie Locaties
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Ohio
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Cincinnati, Ohio, Verenigde Staten, 45221
- Nog niet aan het werven
- University of Cincinnati
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Contact:
- Ting Ting Fu, MD
- Telefoonnummer: 513-636-4200
- E-mail: futn@ucmail.uc.edu
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Oregon
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Portland, Oregon, Verenigde Staten, 97239
- Nog niet aan het werven
- Oregon Health & Science University
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Contact:
- Brian Scottoline, MD, PhD
- Telefoonnummer: (503) 494-8122
- E-mail: scottoli@ohsu.edu
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Washington
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Seattle, Washington, Verenigde Staten, 98195
- Werving
- University of Washington
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Contact:
- Katie M Strobel, MD, MSCR
- Telefoonnummer: (206) 543-3200
- E-mail: kmstrob@uw.edu
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Onderonderzoeker:
- D Taylor Hendrixson, MD, MPH
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Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
- Kind
Accepteert gezonde vrijwilligers
Beschrijving
Inclusion Criteria:
- Admitted to the University of Washington, Oregon Health and Sciences, or University of Cincinnati NICU at 14 days of age
- Born between 24w0days and 31w6d
- Achieved full enteral feeding
Exclusion Criteria:
- Congenital or chromosomal anomalies affecting growth
- Acute renal insufficiency (KDIGO stage 1 or higher)
- Necrotizing enterocolitis (modified Bell's stage IIA or higher)
- Anticipated NICU stay less than 30 days
- Enrollment in a concurrent interventional study that may confound study outcomes
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
- Primair doel: Behandeling
- Toewijzing: Gerandomiseerd
- Interventioneel model: Parallelle opdracht
- Masker: Enkel
Wapens en interventies
Deelnemersgroep / Arm |
Interventie / Behandeling |
|---|---|
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Experimenteel: Targeted sodium supplementation
Every two weeks serum sodium and urine sodium testing with sodium supplementation if indicated by algorithm.
Milk fortification per growth metrics.
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The investigators will utilize urine sodium testing every two weeks in conjunction with serum sodium testing to determine if sodium supplementation is indicated.
The investigators will use serum sodium testing to determine if sodium supplementation or adjustments to sodium supplementation need to be made.
The investigators will provide milk fortification using either a bovine-based or a human-milk-based fortifier (per unit protocol), based on growth trajectories.
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Actieve vergelijker: Enriched Milk Fortification
Serum sodium testing every two weeks with sodium supplementation if indicated by clinical team.
Milk fortification per growth metrics.
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The investigators will use serum sodium testing to determine if sodium supplementation or adjustments to sodium supplementation need to be made.
The investigators will provide milk fortification using either a bovine-based or a human-milk-based fortifier (per unit protocol), based on growth trajectories.
|
Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
|
Body composition by point-of-care ultrasound
Tijdsspanne: Enrollment to study completion, on average 4-10 weeks
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Evaluate muscle and subcutaneous fat accretion from enrollment to 36 weeks posmtnestrual age.
The study team will perform biceps and rectus femoris cross-sectional area measurements using point-of-care ultrasound every 2 weeks.
We will perform arm and mid-thigh subcutaneous fat measurements using point-of-care ultrasound every 2 weeks.
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Enrollment to study completion, on average 4-10 weeks
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Secundaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
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Body composition using air-displacement plethysmography
Tijdsspanne: At study completion, on average 4-10 weeks
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We will conduct air-displacement plethysmography when the infant is off of oxygen at 36 weeks postmenstrual age or prior to discharge, whichever comes earlier.
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At study completion, on average 4-10 weeks
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Andere uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
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Anthropometric growth
Tijdsspanne: Enrollment to study completion, on average 4-10 weeks
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The clinical team measures weight, length, and head circumference z-scores weekly during hospitalization.
The investigators will evaluate the change in z-score from birth to 36 weeks postmenstrual age
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Enrollment to study completion, on average 4-10 weeks
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Adverse outcomes
Tijdsspanne: Enrollment to hospital discharge, on average between 4 to 16 weeks
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The study team will evaluate adverse outcome rates such as bronchopulmonary dysplasia, necrotizing enterocolitis, and all-cause mortality.
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Enrollment to hospital discharge, on average between 4 to 16 weeks
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Medewerkers en onderzoekers
Sponsor
Onderzoekers
- Hoofdonderzoeker: Katie Strobel, MD, MSCR, University of Washington
Studie record data
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Studie start (Werkelijk)
Primaire voltooiing (Geschat)
Studie voltooiing (Geschat)
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Werkelijk)
Updates van studierecords
Laatste update geplaatst (Werkelijk)
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Trefwoorden
Andere studie-ID-nummers
- STUDY00023657
Plan Individuele Deelnemersgegevens (IPD)
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Beschrijving IPD-plan
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IPD delen Ondersteunend informatietype
- MVO
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