Biomedical Research

Objective: This study aimed to compare H. pylori eradication rates of different therapy regimens that are commonly used and investigated.

Methods: The study included 210 patients with H. pylori positive nonulcer dyspepsia, who were randomised into 6 groups. Group 1: Rabeprazole 20 mg BID+amoxicillin 1000 mg BID for the first 7 d and rabeprazole 20 mg BID+amoxicillin 1000 mg BID+clarithromycin 500 mg BID+metronidazole 500 mg TID for the second 7 d. Group 2: Rabeprazole 20 mg BID+amoxicillin 1000 mg BID for the first 5 d and rabeprazole 20 mg BID+clarithromycin 500 mg BID+metronidazole 500 mg TID for the second 5 d. Group 3: Rabeprazole 20 mg BID+metranidazole 500 mg TID+tetracycline 500 mg QID+bismuth QID for 14 d. Group 4: Rabeprazole 20 mg BID+clarithromycin 500 mg BID+amoxicillin 1000 mg BID for 14 d. Group 5: Rabeprazole 20 mg BID+amoxicillin 1000 mg BID+clarithromycin 500 mg BID +metronidazole 500 mg TID for 7 d. Group 6: Rabeprazole 20 mg BID+amoxicillin 1000 mg BID +clarithromycin 500 mg BID+metronidazole 500 mg TID for 14 d.

Results: H. pylori eradication rates were 65.6%, 68.6%, 56.7%, 51.4%, 65.6% and 62.9% respectively, included in the ITT analysis, and 68.6%, 68.6%, 62.9%, 51.4%, 68.6% and 62.9% respectively, included in the PP analysis for all groups. There was no significant difference between the groups with regard to eradication rates.

Conclusion: Although H. pylori eradication rates of hybrid, sequential and concomitant therapy regimens were higher than those of quadruple and standard triple therapy regimens, they were also far from the ideal rate.

Author(s): Mesut Sezikli, Goktug Sirin, Zuleyha Akkan Cetinkaya, Alpaslan Tanoglu, Fatih Guzelbulut, Fatih Bunul, Gokhan Dindar
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