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Clinical Trial Summary

The investigators propose to study the effects of increased iron intake by home fortification of complementary foods on the gastrointestinal microbial development, inflammatory responses, and zinc (Zn) absorption. The proposed subjects are 9 month olds living in a malaria endemic area of rural Kenya who are randomized at 6 months of age to one of three fortificant groups: 1) Sprinkles™ with 12mg Iron(Fe)/day + other micronutrients, including 5mg/d Zn (test); Sprinkles™ with 0 mg/d Fe + other micronutrients, including 5mg/d Zn (control); Sprinkles™ with no micronutrients (placebo). The investigators hypothesize that the microbiome will be significantly different in the three groups and that Zn absorption and status, in addition to immune and oxidant status will be improved in the non-Fe fortified groups when compared to the Fe-fortified group.


Clinical Trial Description

Specific aims include exploration of possible mechanisms of adverse events that have been observed in iron supplementation trials in infants in malaria endemic regions by:

1. Characterizing the impact of enteral iron administration on the evolution of the intestinal microbiome in infants from 6 to 9 months of age.

2. Characterizing iron administration-associated inflammatory responses and correlate these with changes in the intestinal microbiome in infants from 6 to 9 months of age. Specifically, changes in the microbiome will be correlated with biomarkers reflecting:

1. Intestinal inflammation;

2. Systemic inflammation, bacterial translocation, and oxidant stress;

3. Iron status and homeostasis

3. Quantify to what degree Fe interferes with Zn absorption (TAZ) and how it affects the size of the infant's exchangeable zinc pool (EZP). ;


Study Design


Related Conditions & MeSH terms


NCT number NCT02101723
Study type Interventional
Source University of Colorado, Denver
Contact
Status Completed
Phase N/A
Start date April 2011
Completion date February 2016

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