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  • Title: Omeprazole triple therapy versus omeprazole quadruple therapy for healing duodenal ulcer and eradication of Helicobacter pylori infection: a 24-month follow-up study.
    Author: Mantzaris GJ, Petraki K, Archavlis E, Amberiadis P, Christoforidis P, Kourtessas D, Chiotakakou E, Triantafyllou G.
    Journal: Eur J Gastroenterol Hepatol; 2002 Nov; 14(11):1237-43. PubMed ID: 12439119.
    Abstract:
    OBJECTIVE: To evaluate the efficacy of omeprazole triple therapy versus omeprazole quadruple therapy for Helicobacter pylori infection. DESIGN: Prospective, randomized, single-centre, investigator-blind study. SETTINGS: Departments of Gastroenterology and Histopathology, Evangelismos Hospital, Athens, Greece. METHODS: One hundred and forty-nine consecutive patients with active duodenal ulcer were randomized to receive omeprazole (20 mg b.d.), amoxicillin (1 g b.d.) and clarithromycin (0.5 g b.d.) (OAC, n = 78), or omeprazole (20 mg b.d.), colloidal bismuth subcitrate (120 mg q.i.d.), metronidazole (0.5 g t.i.d.) and tetracycline hydrochloride (0.5 g q.i.d.) (OBMT, n = 71) for 10 days. Patients' symptoms were scored, and compliance and treatment-related side effects were assessed. Endoscopy was performed before treatment and at 10-12 weeks and 12 months after treatment. H. pylori infection and its successful eradication were sought by histology, immunohistochemistry and campylobacter-like organisms (CLO) tests on multiple biopsies taken from the gastric antrum, corpus and fundus. Patients were re-evaluated clinically and underwent a C-urea breath test (UBT) at 21-24 months. Those with dyspepsia and/or recrudescence of H. pylori were re-endoscoped. RESULTS: Patient groups were comparable for age, sex, smoking, occasional use of nonsteroidal anti-inflammatory drugs (NSAIDs), and current or past bleeding episodes. Six and seven patients in the OAC and OBMT treatment groups, respectively, were lost to follow-up. Eight patients were non-compliant. Two ulcers in the OAC group and one in the OBMT group did not heal. By intention-to-treat (ITT) and per-protocol (PP) analyses, ulcer healing rates were 86% (67/78) and 97% (67/69), respectively, for the OAC group, and 82% (58/71) and 98% (58/59), respectively, for the OBMT group. H. pylori eradication at 10-12 weeks after treatment was 78% (61/78) and 88% (61/69) for OAC, and 65% (46/71) and 78% (46/59) for OBMT, by ITT and PP analyses, respectively (P > 0.1). Side effects were more common with OBMT. Relapse rates of H. pylori were 3% and 2% for the first and second years, respectively. Four H. pylori-negative patients developed reflux symptoms, but only two developed erosive oesophagitis between 12 and 24 months. CONCLUSIONS: OAC and OBMT were equally effective in healing active duodenal ulcers and eradicating H. pylori, but OAC should be used as a first-line treatment because of its better tolerance.
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