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Clinical Trial Summary

Impaired vitamin B12 (B12) status during pregnancy is associated with increased risk of birth defects and common complications (e.g. intrauterine growth restriction, neural tube defects), and possibly immune function impairment. The newborns and infants of B12-deficient mothers have low B12 stores at birth, further exacerbated by a very low concentration of B12 in breast milk that may hinder their growth and development. In regions such as Bangladesh, many women of reproductive age have inadequate B12 status, probably due to low intake of animal source food. Vitamin B12 intake and status in pregnancy and lactation is potentially insufficient to prevent impaired child development and immune function related to inadequate B12 status. The investigators hypothesize that prolonged vitamin B12 supplementation through fortified milk starting from early pregnancy up to 6 mo-postpartum will improve: (1) biomarkers of vitamin B12 status in mothers-infant pairs (2) vaccine specific adaptive immunity in infants; (3) neurological and cognitive function in infants.


Clinical Trial Description

The investigators aim to conduct a double-blind, randomized trial, to investigate the effects of B12-fortified milk on maternal and infant B12 status, immune function and child development. Pregnant women (n=148) will be randomized to receive B12-fortified milk (100 μg/day) or milk without fortification. The daily supplementation beginning at the baseline visit (GW 11-14) will continue until 6 mo-postpartum. Biomarkers of B12 status will be measured in mothers (GW 11-14 and 6-mo postpartum) and infants (3 and 6-mo). Infant development (6 and 12-mo) will be evaluated by Bayley Scales of Infant and Toddler Development. Immune responses will be measured in infant at 3 and 6-mo. Data on socioeconomic status, dietary diversity, and anthropometric indices will be recorded at baseline. Additional tests in mothers include screening for H. pylori and plasma gastrin. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT03258385
Study type Interventional
Source International Centre for Diarrhoeal Disease Research, Bangladesh
Contact
Status Completed
Phase N/A
Start date September 1, 2017
Completion date October 30, 2021

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