One-week low-dose triple therapy vs two-week medium-dose double therapy for H-pylori infection

Background/Aims: Our study is to compare a shortterm low-dose triple therapy with a Long-term medium-dose double therapy for H. pylori eradication. Materials and Methods: One hundred and ten consecutive patients, suffering from dyspeptic symptoms, with H. pylori infection, were randomly allocated to one of the following 2 groups with different therapeutic regimens: A) omeprazole 20 mg/day for 7 days, tinidazole 500 mg bid for 7 days, clarithromycin 250 mg bid for 7 days (55 pts, 20 with peptic ulcer); B) omeprazole 20 mg bid for 14 days, amoxycillin. 1000 mg bid for 14 days (55 pts, 28 with peptic ulcer). The ''H.pylori status'' was evaluated by means of histology, culture and crease test, at entry and 8 weeks after treatment. Results: Two group A and one group B pts didn't complete the treatment. The H.pylori eradication was obtained in 38 pts of group A (71.69%) (C.I.95%: 55.19176-80.86293), in 31 of group B (58.49%) (C.I.95%: 42.32777-69.7017); on. Intention-to-Treat analysis, the rate of-eradication gave similar results. Side effects occurred in 9 pts of group A (16.98%), in 8 of group B (14.81%). Conclusions: Short-term low-dose triple therapy with omeprazole/tinidazole/clarithromycin has a better cost/benefit ratio than long-term dual therapy with omeprazole/amoxycillin in the H.pylori eradication, but it causes more side-effects.