title: Omeprazole or ranitidine bismuth citrate triple therapy to treat Helicobacter pylori infection: a randomized, controlled trial in Vietnamese patients with duodenal ulcer.
abstract: OBJECTIVE
  To evaluate the effectiveness of triple therapy containing either omeprazole or ranitidine bismuth citrate (RBC) to treat H. pylori infection in Vietnamese duodenal ulcer patients.
  
  
  METHODS
  Patients infected with H. pylori were randomized to receive either omeprazole (20 mg b.d.), clarithromycin (500 mg b.d.) and amoxycillin (1 g b.d.) for 10 days (OAC), or RBC (400 mg b.d.), clarithromycin (500 mg b.d.) and amoxycillin (1 g b.d.) for 10 days (RAC). H. pylori eradication and ulcer healing was established by a follow-up oesophagogastroduodenoscopy (EGD) at least 4 weeks after therapy. Side-effects and compliance were assessed.
  
  
  RESULTS
  One hundred and four out of 108 (96%) patients with a duodenal ulcer were infected with H. pylori. Eighty per cent of infected patients had detectable CagA IgG antibodies. Fifty-seven patients received OAC and 47 received RAC. OAC eradicated H. pylori in 91 and 86% of patients by per protocol (PP) and intention-to-treat (ITT) analysis, respectively. PP and ITT eradication rates for RAC were 96 and 91%. Ulcer healing at the follow-up EGD was 89% with OAC and 100% with RAC. Side-effects were minor. No patient failed to complete the protocol due to side-effects.
  
  
  CONCLUSIONS
  Triple therapy with either omeprazole or RBC is highly effective in eradicating H. pylori and healing duodenal ulcer in Vietnamese patients.
authors.affiliation: Center for Cancer Research, Hanoi, Vietnam.
authors.forename: H V
authors.initials: HV
authors.lastname: Mao
authors.forename: B V
authors.initials: BV
authors.lastname: Lak
authors.forename: T
authors.initials: T
authors.lastname: Long
authors.forename: N Q
authors.initials: NQ
authors.lastname: Chung
authors.forename: D M
authors.initials: DM
authors.lastname: Thang
authors.forename: T V
authors.initials: TV
authors.lastname: Hop
authors.forename: N N
authors.initials: NN
authors.lastname: Chien
authors.forename: P Q
authors.initials: PQ
authors.lastname: Hoan
authors.forename: K S
authors.initials: KS
authors.lastname: Henley
authors.forename: G I
authors.initials: GI
authors.lastname: Perez-Perez
authors.forename: B A
authors.initials: BA
authors.lastname: Connor
authors.forename: C D
authors.initials: CD
authors.lastname: Stone
authors.forename: W D
authors.initials: WD
authors.lastname: Chey
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000897:Anti-Ulcer Agents / Q000009:adverse effects / Q000627:therapeutic use*; D000942:Antigens, Bacterial / Q000276:immunology; D001426:Bacterial Proteins / Q000276:immunology; D001729:Bismuth / Q000009:adverse effects / Q000627:therapeutic use*; D004381:Duodenal Ulcer / Q000188:drug therapy* / Q000276:immunology / Q000382:microbiology; D005260:Female; D016481:Helicobacter Infections / Q000188:drug therapy* / Q000276:immunology / Q000382:microbiology; D016480:Helicobacter pylori; D006801:Humans; D007070:Immunoglobulin A / Q000032:analysis; D008297:Male; D008875:Middle Aged; D009853:Omeprazole / Q000009:adverse effects / Q000627:therapeutic use*; D010349:Patient Compliance; D011899:Ranitidine / Q000009:adverse effects / Q000031:analogs & derivatives* / Q000627:therapeutic use; D014510:Urease / Q000032:analysis; D014744:Vietnam
chemical_list: D000897:Anti-Ulcer Agents; D000942:Antigens, Bacterial; D001426:Bacterial Proteins; D007070:Immunoglobulin A; C080866:cagA protein, Helicobacter pylori; C073340:ranitidine bismuth citrate; D011899:Ranitidine; D014510:Urease; D009853:Omeprazole; D001729:Bismuth