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Antenatal Vitamin D Supplementation in an at risk pregnant population (dark skinned/veiled), looking at neonatal vitamin D levels in cord blood.

Maternal vitamin D supplementation during pregnancy prevents vitamin D deficiency in the newborn: an open-label randomized controlled trial

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12609000142235
Enrollment
78
Registered
2009-03-06
Start date
2008-04-08
Completion date
2008-12-17
Last updated
2020-01-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Brief summary

The incidence of childhood rickets is increasing and is caused by vitamin D deficiency. Of those children, 81% of their mothers are also deficient. We aim to screen high risk women in early pregnancy and randomise those found deficient to either treatment with vitamin D supplements or non-treatment. We will monitor the effect of vitamin D supplementation by repeating vitamin D concentrations during pregnancy, cord and maternal blood at birth, and infant and maternal blood at six weeks postnatally. We hope to develop a protocol so all high risk women will be identified and treated, thereby preventing paediatric complications.

Interventions

The treatment arm will be given 2000 international units (IU) of cholecalciferol orally daily commencing between 14 and 18 weeks gestation. Vitamin D levels will be checked again at 28 weeks gestation. If still deficient the dose will be doubled to 4000IU orally daily until birth. Follow up will cease at six weeks postnatally but vitamin D supplements will need to be taken indefinitely.

Sponsors

Jodie Benson
Lead SponsorIndividual

Study design

Allocation
Randomised controlled trial
Intervention model
Parallel
Primary purpose
Treatment
Masking
Open (masking not used)

Eligibility

Sex/Gender
All
Age
15 Years to 50 Years
Healthy volunteers
Yes

Inclusion criteria

At risk women - dark skinned - veiled Anyone with vitamin D deficiency that has not commenced treatment prior to recruitment.

Exclusion criteria

Women taking barbituates or anticonvulsants (decreased vitamin D absorption). Women with severe renal failure.

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 4, 2026