title: A prospective randomized trial of esomeprazole- versus pantoprazole-based triple therapy for Helicobacter pylori eradication.
abstract: OBJECTIVE
  This prospective, randomized, controlled, head-to-head study was conducted to compare the efficacies of esomeprazole- and pantoprazole-based triple therapies for Helicobacter pylori eradication.
  
  
  METHODS
  From January 2002 to October 2003, 200 H. pylori-infected patients were randomly assigned to undergo twice daily treatment with esomeprazole 40 mg (n = 100) or pantoprazole 40 mg (n = 100) combined with clarithromycin 500 mg and amoxicillin 1 g for 1 wk (ECA and PCA groups, respectively). Follow-up endoscopy was performed at 8 wks after the end of treatment to assess the treatment response.
  
  
  RESULTS
  Intention-to-treat analysis demonstrated a significantly higher eradication rate for the ECA group than for the PCA group (94%vs 82%, respectively, p= 0.009). Per-protocol analysis also showed similar results (97%vs 84%, p= 0.003). Both groups had similar frequencies of adverse events (15%vs 24%) and drug compliance (97%vs 96%). Multivariate analysis disclosed that the use of esomeprazole (OR: 1.56, 95% CI, 1.11-2.19) and good compliance 7.39 (95% CI, 1.27-42.95) were independent predictors of treatment success. Alcohol drinking was an independent predictor of eradication failure (OR: 0.18; 95% CI, 0.06-0.54).
  
  
  CONCLUSIONS
  Esomeprazole-based triple therapy demonstrated a higher eradication rate than pantoprazole-based regimen. The differences in eradiation efficacies between the two study groups may be related to the more powerful acid inhibition effect and stronger anti-H. pylori activity of esomeprazole compared to pantoprazole.
authors.affiliation: Division of Gastroenterology, Department of Internal Medicine, Kaohsiung Veterans General Hospital and National Yang-Ming University, Kaohsiung, Taiwan, ROC.
authors.forename: Ping-I
authors.initials: PI
authors.lastname: Hsu
authors.forename: Kwok-Hung
authors.initials: KH
authors.lastname: Lai
authors.forename: Chiun-Ku
authors.initials: CK
authors.lastname: Lin
authors.forename: Wen-Chi
authors.initials: WC
authors.lastname: Chen
authors.forename: Hsien-Chung
authors.initials: HC
authors.lastname: Yu
authors.forename: Jin-Shiung
authors.initials: JS
authors.lastname: Cheng
authors.forename: Feng-Woei
authors.initials: FW
authors.lastname: Tsay
authors.forename: Chung-Jen
authors.initials: CJ
authors.lastname: Wu
authors.forename: Ching-Chu
authors.initials: CC
authors.lastname: Lo
authors.forename: Hui-Hwa
authors.initials: HH
authors.lastname: Tseng
authors.forename: Yoshio
authors.initials: Y
authors.lastname: Yamaoka
authors.forename: Jin-Liang
authors.initials: JL
authors.lastname: Chen
authors.forename: Gin-Ho
authors.initials: GH
authors.lastname: Lo
mesh_terms: D053799:2-Pyridinylmethylsulfinylbenzimidazoles; D000428:Alcohol Drinking; D000658:Amoxicillin / Q000009:adverse effects / Q000627:therapeutic use; D000900:Anti-Bacterial Agents / Q000009:adverse effects / Q000627:therapeutic use; D000897:Anti-Ulcer Agents / Q000009:adverse effects / Q000627:therapeutic use*; D001562:Benzimidazoles / Q000009:adverse effects / Q000627:therapeutic use*; D017291:Clarithromycin / Q000009:adverse effects / Q000627:therapeutic use; D004359:Drug Therapy, Combination; D004791:Enzyme Inhibitors / Q000009:adverse effects / Q000627:therapeutic use*; D064098:Esomeprazole / Q000009:adverse effects / Q000031:analogs & derivatives* / Q000627:therapeutic use*; D005260:Female; D005500:Follow-Up Studies; D005773:Gastroscopy; D016481:Helicobacter Infections / Q000188:drug therapy*; D016480:Helicobacter pylori / Q000187:drug effects*; D006801:Humans; D008297:Male; D008875:Middle Aged; D000077402:Pantoprazole; D010349:Patient Compliance; D010437:Peptic Ulcer / Q000188:drug therapy* / Q000382:microbiology; D010865:Pilot Projects; D011446:Prospective Studies; D054328:Proton Pump Inhibitors; D013454:Sulfoxides / Q000009:adverse effects / Q000627:therapeutic use*; D016896:Treatment Outcome
chemical_list: D053799:2-Pyridinylmethylsulfinylbenzimidazoles; D000900:Anti-Bacterial Agents; D000897:Anti-Ulcer Agents; D001562:Benzimidazoles; D004791:Enzyme Inhibitors; D054328:Proton Pump Inhibitors; D013454:Sulfoxides; D000658:Amoxicillin; D000077402:Pantoprazole; D017291:Clarithromycin; D064098:Esomeprazole