A Clinical Study to Investigate the Effect of a Partially Hydrolysed Infant Formula With Added Synbiotics on Gut Microbiota Composition and Clinical Effectiveness in Infants at High Risk of Developing Allergy

With the rising prevalence of allergic diseases and the subsequent risk of developing other immune-related disorders, primary prevention of allergy has become a major priority. It is generally acknowledged that breastfeeding is one of the main pillars in allergy prevention. Infant formulas based on hydrolysed proteins have been developed to be used by infants at increased risk of developing allergy in case a mother is unable or chooses not to breastfeed her infant. It has recently been demonstrated that the gut microbiota composition and microbiota activity of infants receiving an infant formula based on partially hydrolysed proteins, supplemented with oligosaccharides, is more similar to breastfed infants than to infants receiving standard cow\'s milk formula, demonstrated by increased levels of bifidobacteria. However the interaction between microbial changes impacted by an hypoallergenic concept and its influence on early life immune development should be further explored. The aim of the present study is therefore to investigate the bifidogenic effect of a hypoallergenic formula supplemented with prebiotics and probiotics compared to standard infant formula in infants at increased risk of developing allergic disease. This study will secondary assess the effects of this concept on the development of allergic manifestations up to the age of 12 months, which will be verified in a separate clinical study MAESTRO as primary outcome. Furthermore, the effects on growth and safety will be studied.