Effects of lansoprazole plus amoxycillin on the cure of Helicobacter pylori infection in Japanese peptic ulcer patients
Abstract
AIM: The effect of lansoprazole plus amoxycillin on curing Helicobacter pylori infection and peptic ulcer recurrence was evaluated. METHOD: The study group was composed of 68 patients with gastric ulcers and 51 with duodenal ulcers, all were H. pylori-positive. The participants were assigned at random to the lansoprazole alone group (lansoprazole 30 mg o.m. for 6 or 8 weeks) or the lansoprazole plus amoxycillin group (lansoprazole alone regimen plus amoxycillin at 500 mg q.d.s. concomitantly for the first 2 weeks). Healed patients were not given maintenance treatment with acid secretion inhibitors. The cure rate for H. pylori infection and the ulcer recurrence rate after 1 year were investigated. RESULT: The cure rate for H. pylori infection was 4.2% in patients receiving lansoprazole alone and 38.5% in patients receiving lansoprazole plus amoxycillin (P < 0.01) for gastric ulcers, and 0% in patients receiving lansoprazole alone and 61.9% in patients receiving lansoprazole plus amoxycillin (P < 0.001) for duodenal ulcers. The recurrence rate was 42.3% in patients receiving lansoprazole alone and 28.6% in patients receiving lansoprazole plus amoxycillin for gastric ulcers, and 66.7% for patients receiving lansoprazole alone and 11.1% for patients receiving lansoprazole plus amoxycillin (P < 0.001) for duodenal ulcers. None of the patients with gastric or duodenal ulcers cured of H. pylori infection had a recurrence. CONCLUSION: Concomitant use of lansoprazole and amoxycillin…
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