Vitamin D Deficiency Clinical Trial
Official title:
Randomized Trial of Enteral Vitamin D Supplementation in Infants < 28 Weeks Gestational Age or <1000 Grams Birth Weight
The objective of the study is to compare supplementation with vitamin D at 800 IU/day to usual care for the first 28 days after birth with respect to 25 (OH) vitamin D levels and indicators of likely or plausible effects of vitamin D supplementation on the function or structure of the lung, bones, immune system, and brain in extremely premature (EP) infants who are <28 weeks gestational age (GA) or <1000 grams of birth weight (BW). The study results will be analyzed as intention to treat Bayesian analyses (Frequentist analyses will also be performed).
Status | Recruiting |
Enrollment | 180 |
Est. completion date | December 1, 2027 |
Est. primary completion date | August 1, 2025 |
Accepts healthy volunteers | No |
Gender | All |
Age group | 24 Hours to 96 Hours |
Eligibility | 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. |
Country | Name | City | State |
---|---|---|---|
United States | The University of Texas Health Science Center at Houston | Houston | Texas |
Lead Sponsor | Collaborator |
---|---|
The University of Texas Health Science Center, Houston | National Center for Advancing Translational Sciences (NCATS), The Gerber Foundation |
United States,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | 25-hydroxyvitamin D (25[OH]D) level | about 28 days after birth | ||
Secondary | 25-hydroxyvitamin D (25[OH]D) level | 36 weeks after birth | ||
Secondary | Type of respiratory support required at 36 weeks postmenstrual age | Data will be reported categorically as:
Number of participants who survive without respiratory support Number of participants who survive with nasal cannula at = 2 liters (L)/minute Number of participants who survive with nasal cannula >2 L/minute or noninvasive positive airway pressure Number of participants who survive with invasive mechanical ventilation Number of participants who die |
36 weeks postmenstrual age (or at the time of discharge home if earlier) | |
Secondary | Length of Hospital stay | from time of birth to time of discharge (about 0 to 60 weeks after birth) | ||
Secondary | Number of participants who are still on respiratory support | Respiratory support includes supplemental oxygen and positive pressure ventilation. | 22 to 26 months corrected age | |
Secondary | Number of days of supplemental oxygen | from time of birth to time of discharge (about 0 to 60 weeks after birth) | ||
Secondary | Number of days of mechanical ventilation | from time of birth to time of discharge (about 0 to 60 weeks after birth) | ||
Secondary | Number of days of positive pressure support | from time of birth to time of discharge (about 0 to 60 weeks after birth) | ||
Secondary | Number of participants who receive steroid treatment to decrease respiratory support | from baseline to 36 weeks postmenstrual age | ||
Secondary | Number of participants with pulmonary hypertension | 36 weeks postmenstrual age | ||
Secondary | Number of participants with wheezing | 2 years | ||
Secondary | Weight as assessed by sex-specific Z-score on the Fenton 2013 Growth Calculator | Z-scores range from -4 standard deviations to +4 standard deviations. A higher Z-score indicates a better outcome. | 28 days of life | |
Secondary | Weight as assessed by sex-specific Z-score on the Fenton 2013 Growth Calculator | Z-scores range from -4 standard deviations to +4 standard deviations. A higher Z-score indicates a better outcome. | 36 weeks postmenstrual age | |
Secondary | Weight as assessed by sex-specific Z-score on the Fenton 2013 Growth Calculator | Z-scores range from -4 standard deviations to +4 standard deviations. A higher Z-score indicates a better outcome. | 2 years | |
Secondary | Length as assessed by sex-specific Z-score on the Fenton 2013 Growth Calculator | Z-scores range from -4 standard deviations to +4 standard deviations. A higher Z-score indicates a better outcome. | 28 days of life | |
Secondary | Length as assessed by sex-specific Z-score on the Fenton 2013 Growth Calculator | Z-scores range from -4 standard deviations to +4 standard deviations. A higher Z-score indicates a better outcome. | 36 weeks postmenstrual age | |
Secondary | Length as assessed by sex-specific Z-score on the Fenton 2013 Growth Calculator | Z-scores range from -4 standard deviations to +4 standard deviations. A higher Z-score indicates a better outcome. | 2 years | |
Secondary | Head circumference as assessed by sex-specific Z-score on the Fenton 2013 Growth Calculator | Z-scores range from -4 standard deviations to +4 standard deviations. A higher Z-score indicates a better outcome. | 28 days of life | |
Secondary | Head circumference as assessed by sex-specific Z-score on the Fenton 2013 Growth Calculator | Z-scores range from -4 standard deviations to +4 standard deviations. A higher Z-score indicates a better outcome. | 36 weeks postmenstrual age | |
Secondary | Head circumference as assessed by sex-specific Z-score on the Fenton 2013 Growth Calculator | Z-scores range from -4 standard deviations to +4 standard deviations. A higher Z-score indicates a better outcome. | 2 years | |
Secondary | Number of participants with any fractures | from baseline to 36 weeks postmenstrual age | ||
Secondary | Number of participants with hospital-acquired sepsis | from day 3 after birth to the time of discharge (which is 0 to 60 weeks after birth) | ||
Secondary | Calcium level | 0 to 36 weeks postmenstrual age | ||
Secondary | Phosphorus level | 0 to 36 weeks postmenstrual age | ||
Secondary | Alkaline phosphatase level | 0 to 36 weeks postmenstrual age | ||
Secondary | Neurodevelopment as assessed by the Bayley-IV Scales of Infant and Toddler Development | Score ranges from 40 to 160, with a higher score indicating a better outcome. | 2 years | |
Secondary | Number of participants with neurodevelopmental impairment (NDI) | 2 years | ||
Secondary | Number of participants who die or have a morbidity | Morbidities include retinopathy of prematurity (ROP), intraventricular hemorrhage (IVH), bronchopulmonary dysplasia (BPD), neurodevelopmental impairment (NDI), necrotizing enterocolitis (NEC), and patent ductus arteriosus (PDA). | 36 weeks postmenstrual age | |
Secondary | Vitamin D status as indicated by serum concentration of 24,25(OH)2D3 as assessed by Liquid Chromatography with tandem mass spectrometry (LC-MS/MS) | about 28 days after birth | ||
Secondary | Vitamin D status as indicated by serum concentration of 24,25(OH)2D3 as assessed by LC-MS/MS | 36 weeks postmenstrual age | ||
Secondary | Vitamin D status as indicated by serum concentration of 3-epi-25(OH)D3 as assessed by LC-MS/MS | about 28 days after birth | ||
Secondary | Vitamin D status as indicated by serum concentration of 3-epi-25(OH)D3 as assessed by LC-MS/MS | 36 weeks postmenstrual age | ||
Secondary | Vitamin D status as indicated by serum concentration of 25(OH)D3 as assessed by LC-MS/MS | about 28 days after birth | ||
Secondary | Vitamin D status as indicated by serum concentration of 25(OH)D3 as assessed by LC-MS/MS | 36 weeks postmenstrual age |
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