Vitamin D supplementation for premature infants

Randomized Trial of Enteral Vitamin D Supplementation in Infants < 28 Weeks Gestational Age or <1000 Grams Birth Weight

Not applicable Interventional The University of Texas Health Science Center, Houston · NCT05694689

This study is testing if giving 800 IU of vitamin D each day can help extremely premature infants grow healthier by looking at their vitamin D levels and how it affects their lungs, bones, immune system, and brain during their first month of life.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment50 (estimated)
Ages24 Hours to 96 Hours
SexAll
SponsorThe University of Texas Health Science Center, Houston Academic / other
Locations1 site (Galveston, Texas)
Trial IDNCT05694689 on ClinicalTrials.gov

What this trial studies

This study aims to compare the effects of vitamin D supplementation at 800 IU/day against usual care in infants born before 28 weeks of gestational age or weighing less than 1000 grams. The focus is on measuring vitamin D levels and assessing potential impacts on lung, bone, immune system, and brain function in extremely premature infants during their first 28 days of life. The analysis will utilize both intention-to-treat Bayesian methods and Frequentist approaches to evaluate the outcomes.

Who should consider this trial

Good fit: Ideal candidates for this study are infants born at less than 28 weeks gestational age or weighing less than 1000 grams.

Not a fit: Patients who are born after 32 weeks of gestation or have major congenital anomalies or severe illnesses may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could improve health outcomes for extremely premature infants by addressing vitamin D deficiency and its associated complications.

How similar studies have performed: Other studies have shown promising results with vitamin D supplementation in premature infants, indicating potential benefits, although this specific approach may still be novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Infants born at \< 28 weeks gestational age (GA) or \<1000 grams birth weight (BW)
* Inborn
* Informed written consent in an Institutional Review Board (IRB)-approved manner

Exclusion Criteria:

* GA \>32 weeks regardless of birth weight (BW)
* Any major congenital anomaly
* An known congenital nonbacterial infection
* Prenatal diagnosis of disorders that affect vitamin D absorption (e.g, cystic fibrosis)
* Such severe illness or immaturity that the attending neonatologist judges intensive care to be unjustified.

Where this trial is running

Galveston, Texas

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Vitamin D DeficiencyPremature infantVitamin D
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.