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Serum 25(OH)D Levels, Supplemental Vitamin D, and Parathyroid Hormone Levels in Premature Infants

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified November 2011 by University of Nebraska.
Recruitment status was:  Not yet recruiting
Information provided by (Responsible Party):
Corrine K. Hanson, University of Nebraska Identifier:
First received: November 8, 2011
Last updated: November 9, 2011
Last verified: November 2011
The specific aims of this study are to determine levels of vitamin D supplementation to achieve goal serum 25(OH)D levels of 30 ng/mL, and to define serum 25(OH)D levels required to achieve suppression of parathyroid hormone in preterm newborn infants hospitalized in the Nebraska Medical Center Newborn Intensive Care Nursery (NICU). In this randomized, controlled trial, infants 23 weeks gestational age or greater will be randomized to two different levels of vitamin D supplementation: 400 IU vitamin D3/day, or 800 IU vitamin D3/day. As an exploratory aim, vitamin D binding protein levels (VDBP) will also be quantified in these infants.

Condition Intervention
Premature Infants
Dietary Supplement: cholecalciferal
Dietary Supplement: cholecalciferol

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Single Group Assignment
Masking: Double Blind (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: Serum 25(OH)D Levels, Supplemental Vitamin D, and Parathyroid Hormone Levels in Premature Infants

Resource links provided by NLM:

Further study details as provided by University of Nebraska:

Primary Outcome Measures:
  • Serum 25(OH)D Levels [ Time Frame: 1 year ]

Secondary Outcome Measures:
  • Parathyroid Hormone Levels [ Time Frame: 1 year ]

Estimated Enrollment: 40
Study Start Date: January 2012
Estimated Study Completion Date: July 2013
Estimated Primary Completion Date: January 2013 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: 400 IU/day vitamin D
Subjects will receive 400 IU/day of vitamin D3, as per current unit policy
Dietary Supplement: cholecalciferal
400 IU/day
Other Name: vitamin D3
Experimental: 800 IU/day vitamin D3
Subjects will receive 800 IU/day vitamin D3
Dietary Supplement: cholecalciferol
800 IU/day D3
Other Name: vitamin D3


Ages Eligible for Study:   23 Weeks to 32 Weeks   (Child)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • NICU hospitalized infants
  • 23-32 weeks gestation

Exclusion Criteria:

  • congential anomalies
  • disorders of calcium metabolism
  • inborn error of metabolism
  • kidney disease
  • liver disease
  • use of steroids
  Contacts and Locations
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Please refer to this study by its identifier: NCT01469650

Contact: Corrine K Hanson, PhD 402-559-3658

United States, Nebraska
Nebraska Medical Center Not yet recruiting
Omaha, Nebraska, United States, 68198
Contact: Corrine K Hanson, PhD    402-559-3658   
Principal Investigator: Corrine Hanson, Phd         
Principal Investigator: Ann Anderson Berry, MD         
Principal Investigator: Laura Armas, MD         
Sponsors and Collaborators
University of Nebraska
  More Information

Responsible Party: Corrine K. Hanson, Assistant Professor, University of Nebraska Identifier: NCT01469650     History of Changes
Other Study ID Numbers: 419-11
Study First Received: November 8, 2011
Last Updated: November 9, 2011

Keywords provided by University of Nebraska:
vitamin D3
parathyroid hormone
NICU hospitalization

Additional relevant MeSH terms:
Premature Birth
Obstetric Labor, Premature
Obstetric Labor Complications
Pregnancy Complications
Vitamin D
Growth Substances
Physiological Effects of Drugs
Bone Density Conservation Agents
Hormones, Hormone Substitutes, and Hormone Antagonists processed this record on April 28, 2017