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Clinical Drug Investigation
Erschienen in: Clinical Drug Investigation 7/2006

01.07.2006 | Original Research Article

Efficacy and Safety of Helicobacter pylori Eradication Therapy with Omeprazole, Amoxicillin and High- and Low-Dose Clarithromycin in Japanese Patients

A Randomised, Double-Blind, Multicentre Study

verfasst von: Dr Kazuhide Higuchi, Takama Maekawa, Koichiro Nakagawa, Shinji Chouno, Takanobu Hayakumo, Naomi Tomono, Akio Orino, Hirohisa Tanimura, Kan Asahina, Naotaka Matsuura, Motohiko Endo, Masanori Hirano, Choitsu Sakamoto, Tsutomu Inomoto, Tetsuo Arakawa

Erschienen in: Clinical Drug Investigation | Ausgabe 7/2006

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Abstract

Objective: Seven-day administration of omeprazole 40 mg/day + amoxicillin 1500 mg/day + clarithromycin 800 mg/day is currently approved in Japan for the eradication of Helicobacter pylori infection. We investigated the efficacy and safety of an omeprazole-based triple therapy regimen in combination with amoxicillin and low-dose clarithromycin in Japanese patients.
Methods: Patients were randomly assigned to either the low-dose group (omeprazole 40 mg/day + amoxicillin 1500 mg/day + clarithromycin 400 mg/day) or the high-dose group (omeprazole 40 mg/day + amoxicillin 1500 mg/day + clarithromycin 800 mg/day). A total of 288 patients were allocated to the low-dose (143) and high-dose (145) groups and were treated twice daily for 1 week.
Results: For the full-analysis set, H. pylori eradication rates were 81.1% (116/143 patients, 90% confidence interval [CI] 74.9, 86.3) in the low-dose group and 80.0% (116/145 patients, 90% CI 73.7, 85.3) in the high-dose group. Per-protocol eradication rates were 81.7% (103/126 patients, 90% CI 75.1, 87.2) and 84.1% (90/107 patients, 90% CI 77.1, 89.6), respectively. When patients with non-susceptibility to clarithromycin were excluded, eradication rates were ⋙80% for both gastric and duodenal ulcers in the two groups. The results suggested that eradication rates were affected more by susceptibility to clarithromycin than to amoxicillin. Both regimens were well tolerated.
Conclusion: This study demonstrated that an omeprazole-based triple-therapy regimen with clarithromycin 400 mg/day was as effective as that with clarithromycin 800 mg/day for H. pylori eradication.
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Metadaten
Titel
Efficacy and Safety of Helicobacter pylori Eradication Therapy with Omeprazole, Amoxicillin and High- and Low-Dose Clarithromycin in Japanese Patients
A Randomised, Double-Blind, Multicentre Study
verfasst von
Dr Kazuhide Higuchi
Takama Maekawa
Koichiro Nakagawa
Shinji Chouno
Takanobu Hayakumo
Naomi Tomono
Akio Orino
Hirohisa Tanimura
Kan Asahina
Naotaka Matsuura
Motohiko Endo
Masanori Hirano
Choitsu Sakamoto
Tsutomu Inomoto
Tetsuo Arakawa
Publikationsdatum
01.07.2006
Verlag
Springer International Publishing
Erschienen in
Clinical Drug Investigation / Ausgabe 7/2006
Print ISSN: 1173-2563
Elektronische ISSN: 1179-1918
DOI
https://doi.org/10.2165/00044011-200626070-00002