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Effects of a Specially Designed Fermented Milk Product Containing Probiotic Lactobacillus casei DN-114 001 and the Eradication of H. pylori in Children: A Prospective Randomized Double-Blind Study

Sýkora, Josef MD, PhD*; Valečková, Kristýna MD; Amlerová, Jana MD; Siala, Konrad MD, MSc*; Dědek, Petr MD, PhD§; Watkins, Stephen MD; Varvařovská, Jana MD*; Stožický, František MD, PhD*; Pazdiora, Petr MD, PhD; Schwarz, Jan MD*

Journal of Clinical Gastroenterology: September 2005 - Volume 39 - Issue 8 - p 692-698
doi: 10.1097/01.mcg.0000173855.77191.44
Alimentary Tract: Clinical Research

Goals: To determine the efficacy of triple therapy supplemented with a specially designed fermented milk product containing specific probiotic Lactobacillus casei (L. casei) DN-114 001 strain on Helicobacter pylori eradication in children.

Background: Lactobacillus species possess in vitro activity against H. pylori. There are no consistent data on the impact of eradication therapy supplemented with probiotics on H. pylori cure rates in childhood in vivo.

Study: Multicenter, prospective, randomized, double-blind controlled study. Eighty-six symptomatic H. pylori-positive children were randomized either to receive the control treatment of omeprazole, amoxicillin, and clarithromycin (OAC) for 7 days or the test treatment of omeprazole, amoxicillin, and clarithromycin for 7 days supplemented with fermented milk (Actimel) containing L. casei DN-114 001 (OAC-LC), for 14 days. H. pylori status was assessed at 4 weeks following therapy using two noninvasive tests.

Results: Intention-to-treat (ITT) based eradication rates for the OAC-LC group were 84.6% (95% CI, 71.2%-95.5%), and 91.6% (95% CI, 76.9%-98.2%) by per-protocol (PP) analysis. Eradication in the OAC group was 57.5% (95% CI, 42.2%-72.3%) in the ITT set and 61.3% (95% CI, 44.4%-75.0%) in the PP group. Eradication success was higher in the OAC-LC group compared with the OAC group in both ITT (P = 0.0045) and PP analysis (P = 0.0019). Primary resistance for clarithromycin could be determined in 21.2%. Side effects were infrequent. Drug compliance was good throughout the study.

Conclusion: Supplementation with fermented milk, containing live special probiotic L. casei DN-114 001, confers an enhanced therapeutic benefit on H. pylori eradication in children with gastritis on triple therapy.

From the *Department of Pediatrics, Division of Gastroenterology, and Departments of †Immunology and ‡Microbiology, Charles University Hospital, Pilsen, Czech Republic; §Department of Pediatrics, Charles University Hospital, Hradec Králové, Czech Republic; and ∥Medical Assessment Unit, St. Helier Hospital, London, UK.

Received for publication October 27, 2004; accepted March 22, 2005.

Preliminary results were presented at the second WCPGHAN, 2004, Paris, France.

Supported by research grant IGA MZ 7399-3/2003 from the Ministry of Health of Czech Republic, and in part by Danone, Czech Republic.

Reprints: Sýkora Josef, MD, PhD, Department of Pediatrics, Charles University Hospital, Alej Svobody 80, 304 60 Pilsen, Czech Republic (e-mail:

© 2005 Lippincott Williams & Wilkins, Inc.