Effect Of Lactobacillus GG on Atopic March


Federico II University




Cow's Milk Allergy
Atopic Disease


Dietary Supplement: Extensively hydrolyzed casein formula + LGG

Study type


Funder types




Details and patient eligibility


Food allergy (FA), defined as an adverse immune response to food allergens, is among the most frequent allergic disorders in childhood and it has recognized as a major paediatric health problem due to the severity of the reactions and the dramatic increase over the past decades. Cow's milk allergy (CMA) is the most frequent FA in children worldwide, and it has been demonstrated that it could be the first manifestation of the so-called "atopic march", characterized by the occurrence of other allergic disorders in the subsequent years after the onset of CMA. In a previous study, involving children with CMA over a period of 5 years, 40% developed asthma, 21% atopic eczema, and 43% allergic rhinitis. Similar results have been reported in a recent study on Finnish children Intestinal microflora appears to have a crucial role in the development of atopic disorders. Children with atopic diseases have different commensal bacterial groups in the gut compared to non-atopic children, and differences are also found between countries with high and low incidence of atopic diseases. There is currently great interest in manipulating the normal microbiota to accrue health benefits through an approach known as "probiotics." Probiotics are defined as "live microorganisms which when administered in adequate amounts confer a health benefit on the host". The conceptual basis of possible use of probiotics in the prevention and treatment of atopic disorders is well grounded. Lactobacillus GG (LGG) is the most studied probiotic in the prevention and treatment of atopic disorders. Wide and well-designed clinical studies have provided several evidences on the efficacy of LGG as preventive or therapeutic strategy in pediatric atopic disorders. More recently, in vitro studies have provided evidences on the potent immunoregulatory role and on the influence on intestinal microflora composition (toward a more beneficial composition in the prevention and treatment of atopic disorders) elicited by LGG. This view has been further reinforced by recent research showing that LGG is able to improve recovery of intestinal symptoms in infants with CMA-induced allergic colitis.


180 estimated patients




Under 12 months old


No Healthy Volunteers

Inclusion criteria

infants aged less than 12 months, with a diagnosis of cow's milk allergy

Exclusion criteria

  • age higher than 12 months,
  • concomitant chronic systemic diseases,
  • congenital cardiac defects,
  • active tuberculosis,
  • autoimmune diseases,
  • immunodeficiency,
  • chronic inflammatory bowel diseases,
  • celiac disease,
  • cystic fibrosis,
  • metabolic diseases,
  • malignancy,
  • chronic pulmonary diseases,
  • malformations of the gastrointestinal tract,
  • suspected eosinophilic esophagitis or eosinophilic enterocolitis,
  • suspected food-protein-induced enterocolitis syndrome,
  • suspected cow's milk proteins-induced anaphylaxis

Trial design

Primary purpose




Interventional model

Parallel Assignment


None (Open label)

180 participants in 2 patient groups

extensively hydrolysed casein formula
No Intervention group
extensively hydrolysed casein formula
Extensively hydrolyzed casein formula + LGG
Active Comparator group
Extensively hydrolized formula plus LGG
Dietary Supplement: Extensively hydrolyzed casein formula + LGG

Trial contacts and locations



Central trial contact

Roberto Berni Canani, Phd

Data sourced from clinicaltrials.gov

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