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RecruitingNCT05380401Updated Oct 7, 2026

Metabolic Mechanisms Induced by Enteral DHA and ARA Supplementation in Preterm Infants

An interventional study of Enfamil® DHA & ARA Supplement for Special Dietary Use in Premature, sponsored by The University of Texas Health Science Center at San Antonio. Recruiting at 7 sites in United States. Open to participants aged Up to 36 Weeks. Per ClinicalTrials.gov, last updated 2026-10-07.

Sponsored by The University of Texas Health Science Center at San Antonio · Not applicable, Interventional, and Basic science

From the registry’s dates

  • Started Mar 2023; still recruiting 3 years 6 months later.
Phase
Not applicable
Study type
Interventional
Enrollment
328
Allocation
Randomized
Ages
Up to 36 Weeks
Sex
All
01

Study summary

A comprehensive analysis of the impact of exogenous enteral DHA and ARA supplementation on lipid metabolism including the production of downstream derived mediators and how this impacts important biological pathways such as metabolism, inflammation, and organogenic factors.

Read the detailed description

Infants will be randomized to receive the combined enteral DHA/ARA supplement within the first 48 hours after birth to 36 weeks postmenstrual age. The randomization procedure will follow a stratified permuted block scheme to fulfill two goals: (1) randomize infants into one of four arms and (2) ensure an adequate sample size within each week of gestational age. Preterm infants will be randomized using random permuted blocks within each of the 5 birth gestational age strata. When treatment assignment is open and sample size is not overtly large, a block randomization procedure with randomly chosen block sizes can maintain treatment assignment balance and reduce the potential for selection bias. This approach will also ensure that preterm infants of all eligible gestational ages at birth are approximately equally represented in each of 4 arms of the trial, thus ensuring that important comorbidities and standard of care applicable to infants of different gestational ages at birth are also approximately equally distributed across the study arms. There is no placebo for this study. There is no blinding in this study. Consent will also be obtained from the mother of the infant, as they will be asked to provide milk samples if they're breastfeeding their infant, and maternal medical history and demographical data will be recorded.

02

Conditions studied

  • Premature

Browse trials for

Keywords

  • infant, premature
  • fatty acids
  • nutrition
03

In context

Premature Birth

2,554 studies on the registry are indexed under Premature Birth; 498 are open to participants now.

This study's planned enrollment of 328 is above the median of 84 across 1,689 interventional studies indexed under Premature Birth.

Browse Premature Birth studies →

Lead sponsor

The University of Texas Health Science Center at San Antonio is the lead sponsor of 435 studies on the registry; 88 are open to participants now.

Of its 62 completed or terminated interventional studies of FDA-regulated products, 31 (50%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
Up to 36 Weeks
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • born between 25 0/7 and 29 6/7 weeks of gestation
  • less than 48 hours of age at first lipid dose (The cohort is defined by gestational age rather than birth weight to avoid an over-represented sample of growth-restricted infants in birth weight defined cohorts.)

Exclusion criteria

Exclusion Criteria:

  • serious congenital anomalies
  • conditions at birth that will require surgery prior to discharge
  • imminent death such that withdrawal of intensive care support is anticipated within the first 72 hours after birth
05

Study design

Phase
Not applicable
Primary purpose
Basic science
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
328 participants (estimated)

Study arms

  • Other
    DHA/ARA supplement

    DHA/ARA supplement throughout the duration of the protocol, "d-on"

    Dietary Supplement: Enfamil® DHA & ARA Supplement for Special Dietary Use

  • No intervention
    No DHA/ARA supplement

    no DHA/ARA supplement throughout the duration of the protocol, "d-off"

  • Other
    DHA/ARA initially then no supplement

    DHA/ARA supplement from enrollment to 31 6/7 weeks post-menstrual age (PMA) then no supplement from 32 to 36 weeks' PMA, "x- on/off"

    Dietary Supplement: Enfamil® DHA & ARA Supplement for Special Dietary Use

  • Other
    No supplement initially then DHA/ARA supplement

    No DHA/ARA supplement till 31 6/7 weeks' then long-chain polyunsaturated fatty acids (LCPUFA) supplement from 32 to 36 weeks PMA, "x-off/on"

    Dietary Supplement: Enfamil® DHA & ARA Supplement for Special Dietary Use

Interventions

  • Dietary supplementEnfamil® DHA & ARA Supplement for Special Dietary Use

    Dosage: 60 mg/kg/day of DHA and 120 mg/kg/day of ARA. Route of administration: enteral tube or by oral syringe

    Also known as: DHA/ARA Supplement

06

What researchers measure

Primary outcomes

  1. Fatty acid levels in plasma

    Change in lipid metabolites reflected by levels in plasma

    Time frame: Baseline to 36 weeks

  2. Fatty acid levels in red blood cell (RBC) membranes

    Change in fatty acid levels in RBC membranes

    Time frame: Baseline to 36 weeks

  3. Change in circulating biomarker Lipoxin A4

    Biomarker reflective of system development and function will be measured. There are no specific levels since there is no normative data in neonates.

    Time frame: Baseline to 36 weeks

  4. Change in biomarker Resolvin D1

    Biomarker reflective of system development and function will be measured. There are no specific levels since there is no normative data in neonates.

    Time frame: Baseline to 36 weeks

  5. Change in biomarker Resolvin E1

    Biomarker reflective of system development and function will be measured. There are no specific levels since there is no normative data in neonates.

    Time frame: Baseline to 36 weeks

  6. Change in Protectin/Neuroprotectin

    Levels of protectin/neuroprotectin and fatty acids in the n3 and n6 pathways will be measured.

    Time frame: Baseline to 36 weeks

Secondary outcomes

  1. Change in infant weigh

    Recorded in grams (ounces)

    Time frame: Baseline to 36 weeks

Other outcomes

  1. Bronchopulmonary dysplasia (BDP)

    Percentage of participants with BDP

    Time frame: Baseline to 36 weeks

  2. Late-onset sepsis (LOS)

    Percentage of participants with LOS

    Time frame: Baseline to 36 weeks

  3. Retinopathy of prematurity (ROP)

    Percentage of participants with ROP

    Time frame: Baseline to 36 weeks

  4. Necrotizing enterocolitis (NEC)

    Percentage of participants with NEC

    Time frame: Baseline to 36 weeks

07

Study locations

7 of 7 sites recruiting
08

References and documents

Individual participant data

Plan to share: Yes — Deidentified data will be shared with the funding body, NIH, summary results will be shared in ClinicalTrials.gov

Supporting information: Study protocol, Sap, Icf

No publications or documents are linked to this record.

09

Updates

1 registry update since Sep 25, 2026
Minor edits
Nothing that changes what the study is or who can join. Edited: verification date
1 update, last Oct 7, 2026
Show all 1 update
  1. Oct 7, 2026
    Minor edits only
    + 1 other change: verification date

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

10

Registry details

Key details

Study ID
NCT05380401
Lead sponsor
The University of Texas Health Science Center at San Antonio
Collaborators
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
Responsible party
Sponsor
First posted
May 18, 2022
Start date
Mar 9, 2023
Primary completion
Apr 2027 (estimated)
Completion
Apr 2028 (estimated)
Last update
Oct 7, 2026

Study contacts

Cynthia Blanco, MD, MSCI-TS
Contact
blanco@uthscsa.edu
210-567-5225
Diana Anzueto Guerra
Contact
anzuetod@uthscsa.edu
210-567-5254
Cynthia Blanco, MD, MSCI-TS
principal investigator · The University of Texas Health Science Center at San Antonio

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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