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Korean J Gastroenterol. 2006 Jan;47(1):30-36. Korean. Original Article.
Kang MS , Park DI , Yun JW , Oh SY , Yoo TW , Park JH , Kim HJ , Cho YK , Sohn CI , Jeon WK , Kim BI .
Department of Internal Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea.
Department of Internal Medicine, Armed Forces Capital Hospital, Gyeonggi, Korea.

BACKGROUND/AIMS: Antibiotic resistance and poor compliance are the main causes of Helicobacter pylori (H. pylori) eradication failure. This study evaluated the eradication rate, tolerability, and compliance of levofloxacin- azithromycin combined triple therapy for H. pylori eradication. METHODS: 1) First-line eradication: A total of 78 H. pylori-positive patients were enrolled. Seventeen military men in Armed Forces Capital Hospital were treated with 7 days of levofloxacin-azithromycin combined triple therapy (omeprazole 20 mg bid, levofloxacin 500 mg od, and azithromycin 500 mg od), and 61 patients in Kangbuk Samsung Hospital were treated with standard PPI-based triple therapy (omeprazole 20 mg bid, amoxicillin 1.0 g bid, and clarithromycin 500 mg bid) for 7 days. 2) Second-line eradication: A consecutive series of 59 patients who failed H. pylori eradication with standard PPI-based triple therapy in Kangbuk Samsung Hospital were randomized to two groups. Thirty patients were retreated with 7 days of bismuth-based quadruple therapy (omeprazole 20 mg bid, bismuth 120 mg qid, metronidazole 500 mg tid, and tetracycline 500 mg qid), and remaining 29 patients were retreated with levofloxacin-azithromycin combined triple therapy. Patient's compliance and tolerability were evaluated at the end of treatment. The status of H. pylori infection was assessed 8 weeks later then. The successful eradication of H. pylori was defined as negative results from histology and CLO test, or 13C-urea breath test. RESULTS: First-line eradication rate of levofloxacin-azithromycin triple therapy was lower than that of standard PPI-based triple therapy, but there was no statistically significant difference (70.6% vs. 80.3%, p=0.390). Second-line eradication rate of levofloxacin-azithromycin combined triple therapy was significantly lower than that of bismuth-based quadruple therapy (ITT/PP 65.5%/73.1% vs. 90%/90%, p<0.0001). The compliances of all patients were more than 85%. Two of patients with levofloxacin-azithromycin combined triple therapy complained self-limiting side effects (mild dizziness; mild insomnia with general weakness). CONCLUSIONS: Levofloxacin-azithromycin combined triple therapy should not be recommended as the first-line or second-line H. pylori eradication regimen in Korea.

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