title: Double-blind trial of omeprazole and amoxicillin to cure Helicobacter pylori infection in patients with duodenal ulcers.
abstract: OBJECTIVE
  Anti-Helicobacter pylori treatment with combinations of omeprazole and amoxicillin is a promising treatment option. The aim of this study was to investigate whether a daily omeprazole dose of 120 mg combined with amoxicillin would cure H. pylori infection at a rate comparable with that achieved with "triple therapy."
  
  
  METHODS
  In a double-blind, randomized, controlled, and multicenter trial in Germany, 270 patients with an H. pylori-associated duodenal ulcer were treated with 40 mg omeprazole three times a day and 750 mg amoxicillin three times a day for the first 14 days (n = 139) followed by 20 mg omeprazole once daily until day 42 or with omeprazole plus 750 mg amoxicillin placebo three times a day for the same time period (n = 131).
  
  
  RESULTS
  Cure rates of H. pylori infection were 91% in the omeprazole plus amoxicillin group, 0% in the omeprazole plus placebo group, and 89% and 0%, respectively, performing an intention-to-treat analysis. Cure of H. pylori infection in patients pretreated with omeprazole was only 58% compared with 95% in patients who were not. The cumulative 12-month relapse rates were 11.3% and 44% in the treatment groups and 1.6% in H. pylori-negative and 49% in H. pylori-positive patients.
  
  
  CONCLUSIONS
  The combination of 120 mg omeprazole daily and 2.25 g amoxicillin daily with its H. pylori cure rate of around 90% is one of the best tolerated and most effective treatment regimens.
authors.affiliation: Department of Internal Medicine II, Klinikum Grosshadern, University of Munich, Germany.
authors.forename: E
authors.initials: E
authors.lastname: Bayerdörffer
authors.forename: S
authors.initials: S
authors.lastname: Miehlke
authors.forename: G A
authors.initials: GA
authors.lastname: Mannes
authors.forename: A
authors.initials: A
authors.lastname: Sommer
authors.forename: W
authors.initials: W
authors.lastname: Höchter
authors.forename: J
authors.initials: J
authors.lastname: Weingart
authors.forename: W
authors.initials: W
authors.lastname: Heldwein
authors.forename: H
authors.initials: H
authors.lastname: Klann
authors.forename: T
authors.initials: T
authors.lastname: Simon
authors.forename: W
authors.initials: W
authors.lastname: Schmitt
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000658:Amoxicillin / Q000008:administration & dosage*; D004311:Double-Blind Method; D004359:Drug Therapy, Combination; D004381:Duodenal Ulcer / Q000188:drug therapy* / Q000209:etiology; D005260:Female; D005858:Germany; D016481:Helicobacter Infections / Q000150:complications / Q000188:drug therapy*; D016480:Helicobacter pylori; D006801:Humans; D008297:Male; D008875:Middle Aged; D009853:Omeprazole / Q000008:administration & dosage*; D012008:Recurrence
chemical_list: D000658:Amoxicillin; D009853:Omeprazole