Vitamin D supplementation for premature infants

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

NA · The University of Texas Health Science Center, Houston · NCT05459298

This study tests whether giving extra vitamin D to extremely premature infants can improve their health in areas like lung and bone development compared to standard care.

Quick facts

PhaseNA
Study typeInterventional
Enrollment180 (estimated)
Ages24 Hours to 96 Hours
SexAll
SponsorThe University of Texas Health Science Center, Houston (other)
Locations1 site (Houston, Texas)
Trial IDNCT05459298 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 extremely premature infants for the first 28 days after birth. It focuses on measuring vitamin D levels and assessing potential impacts on lung, bone, immune system, and brain function. The study will utilize intention-to-treat Bayesian analyses, along with Frequentist analyses, to evaluate the outcomes. The target population includes infants born at less than 28 weeks gestational age or weighing less than 1000 grams.

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 at greater than 32 weeks gestational age or have major congenital anomalies may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could improve health outcomes for extremely premature infants by enhancing their vitamin D levels and potentially supporting better lung, bone, immune, and brain function.

How similar studies have performed: Other studies have explored vitamin D supplementation in premature infants, but this specific approach and population may offer novel insights.

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
* A 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

Houston, 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.

View on ClinicalTrials.gov →

Conditions: Vitamin D Deficiency, Premature infant, Vitamin D

Last reviewed 2026-05-15 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.