title: Randomized, double-blind, placebo-controlled trial: effect of lactobacillus GG supplementation on Helicobacter pylori eradication rates and side effects during treatment in children.
abstract: OBJECTIVE
  To determine the effectiveness of Lactobacillus GG (LGG) in children with Helicobacter pylori infection undergoing eradication therapy.
  
  
  METHODS
  We conducted a double-blind, placebo-controlled, randomized trial comparing a 7-day, triple eradication regimen consisting of 2 antibiotics (amoxicillin tablets, 25 mg/kg twice per day, and clarithromycin tablets, 10 mg/kg twice per day) plus a proton pump inhibitor (omeprazole capsules, 0.5 mg/kg twice per day) supplemented with LGG (109 colony-forming units) or placebo in 83 children with H pylori infection confirmed by 2 of 3 tests (13C-urea breath test, histopathology, rapid urease test). The primary outcome measure was the H pylori eradication rate. The secondary outcome measure was the proportion of patients who experienced therapy-related adverse effects during anti-H pylori treatment.
  
  
  RESULTS
  The groups did not differ with respect to H pylori eradication rates. Of the 34 children in the LGG group, 23 (69%) experienced eradication, compared with 22 of 32 children (68%) in the placebo group (RR 0.98, 95% CI 0.7-1.4). The groups did not differ with respect to adverse effects.
  
  
  CONCLUSIONS
  In children with H pylori infection, supplementation of standard triple therapy with LGG did not significantly alter the eradication rate or side effects.
authors.affiliation: 2nd Department of Paediatrics, Medical University of Warsaw, Warsaw, Poland. hania@ipgate.pl
authors.forename: Hania
authors.initials: H
authors.lastname: Szajewska
authors.forename: Piotr
authors.initials: P
authors.lastname: Albrecht
authors.forename: Agnieszka
authors.initials: A
authors.lastname: Topczewska-Cabanek