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25OH Vitamin D Overdoses and Risk of Bronchopulmonary Dysplasia or Death

NCT05944055 · Status: UNKNOWN · Type: OBSERVATIONAL · Enrollment: 173

Last updated 2023-07-17

No results posted yet for this study

Summary

Several studies have demonstrated that vitamin D deficiency at birth is a risk factor of bronchopulmonary dysplasia. However, in an animal model of bronchopulmonary dysplasia vitamin D overdose has also been associated with an increased mortality and an increased lung injury. Such vitamin D overdose has been frequently reported in hospitalized neonates receiving the current supplementation.

The hypothesis is that vitamin D overdose is an independent risk factor of bronchopulmonary dysplasia or death among infants born below 31 weeks gestational age excluding infants with vitamin D deficiency.

This retrospective cohort study will include all infants born before 31 weeks of gestation (WG), who were hospitalized in a tertiary neonatal intensive care unit (NICU) during at least 10 days, for who at least one 25OH vitamin D determination was performed before 36 WG corrected age and whose parents are not opposed to the study. A descriptive analysis of the cohort depending on the occurrence of vitamin D overdose will be performed. A multivariate analysis will determine if vitamin D overdose is an independent risk factor of bronchopulmonary dysplasia or death among preterm infants, adjusting on the covariates known to be associated with bronchopulmonary dysplasia.

Conditions

  • Bronchopulmonary Dysplasia
  • Vitamin D Overdose

Interventions

BIOLOGICAL

Is 25 OH vitamin D overdose a risk factor of bronchopulmonary dysplasia or death ?

Vitamin D overdose is frequent among preterm infants receiving the current supplementation (Mauras 2022, Kołodziejczyk-Nowotarska 2021). In our NICU, the protocol was to daily administrate 55 UI vitamin D during parenteral nutrition then 1000 UI during enteral nutrition for babies weighing more than 1000 g and 1200UI during enteral nutrition for babies weighing less than 1000 g. The dosage was adapted each month after a plasmatic measure of 25OH-D in order to maintain 25OH-D between 50 nmol/L and 120 nmol/L.

Sponsors & Collaborators

  • Hospices Civils de Lyon

    lead OTHER

Eligibility

Min Age
23 Weeks
Max Age
31 Weeks
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2023-01-01
Primary Completion
2023-06-01
Completion
2023-12-01

Countries

  • France

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT05944055 on ClinicalTrials.gov