About this trial
The OK Daily Study is a multi-centred, part-randomised, part blinded, four cohort study. We are exploring daily dietary supplementation with vitamin K2, specifically menaquinone-7 (MK-7), given to breastfed infants or breastfeeding mothers to see whether this improves the incidence of biochemical vitamin K deficiency in the infants at 2 months postnatal age.
The overall aims are:
* To compare infant MK-7 supplementation with placebo * To compare maternal MK-7 supplementation with placebo * To compare infant MK-7 supplementation and maternal MK-7 supplementation * To compare infant MK-7 supplementation with vitamin K1 supplementation via infant formula milk.
Once recruited, mother and infant pairs will be grouped initially based on the families' feeding choice. Breastfed infants will then be randomised 2:1 to the infant supplementation or maternal supplementation group. Within the infant supplementation group, infants will either receive MK-7 with vitamin D or a placebo containing vitamin D.
Follow up will occur at 2 months postnatal age (range 2-3 months postnatal age), where bloods and breastmilk samples will be collected to assess the infant and maternal vitamin K status.
Eligibility criteria
Qualifiers
Infants, and mothers of infants, born ≥37 weeks gestational age
Standard dose of intramuscular (IM) vitamin K prophylaxis given to the neonate following birth
For breastfeeding mothers: the mother intends to exclusively/predominantly breastfeed their baby for at least 2 months
Disqualifiers
Inability or refusal to provide informed consent
Inability to adhere to or comply with study procedures
Babies who meet the inclusion gestation but would otherwise, as part of routine neonatal care, be provided with daily vitamin K drops (i.e. NeoKay drops) at discharge
IM vitamin K prophylaxis not received at birth (parents declined vitamin K prophylaxis or parents chose for neonate to receive an oral course of vitamin K prophylaxis instead)
Trial design
Treatments tested in this trial
- Combined MK-7 + vitamin D3 drops
- Vitamin D3 Drops
- MK-7 capsules
Treatment groups
Locations
Sponsors and collaborators
Norfolk and Norwich University Hospitals NHS Foundation Trust
Lead sponsor
Maastricht University
Collaborator
Guy's and St Thomas' NHS Foundation Trust
Collaborator
Ashford and St. Peter's Hospitals NHS Trust
Collaborator
University of East Anglia
Collaborator