PMID- 15580397 OWN - NLM STAT- MEDLINE DCOM- 20050225 LR - 20131121 IS - 0944-1174 (Print) IS - 0944-1174 (Linking) VI - 39 IP - 11 DP - 2004 Nov TI - Second-line treatment for Helicobacter pylori infection in Japan: proton pump inhibitor-based amoxicillin and metronidazole regimen. PG - 1051-5 AB - BACKGROUND: Recent studies have reported that proton pump inhibitor (PPI)/amoxicillin (A) metronidazole (M) therapy for Helicobacter pylori infection provides a sufficient cure rate in Japan in patients who have failed first-line treatment with PPI/amoxicillin and clarithromycin (AC). To validate the efficacy of this regimen as second-line therapy, our experience with second-line treatment using a PPI/AM regimen was reviewed. METHODS: We analyzed data on 151 patients who had been prescribed a 10-day PPI/AM re-treatment regimen after eradication failure of 1 to 2 weeks' first-line PPI/AC therapy. The PPI/AM regimen was given according to results of susceptibility testing (S+) in 31 patients. The group that had undergone susceptibility testing was further divided into two subgroups according to dosage: standard dose of omeprazole (O)/AM (n = 11) and double dose of lansoprazole (L)/AM (n = 20). The PPI/AM regimen was given without susceptibility testing (S-) to 120 patients. These patients were also divided into two subgroups according to whether they received omeprazole or lansoprazole: OAM (n = 61) and LAM (n = 59). Cure rates and adverse effects in each group were analyzed. RESULTS: The intention-to-treat (ITT)-based cure rate with/without susceptibility testing was 93.5% (95% confidence interval [CI], 79%-99%) and 87.5% (95% CI, 80%-93%), respectively (not significant [NS]). The ITT-based cure rate in S+/S- for OAM and S+/S- for LAM was 90.9% (95% CI, 59%-100%)/82% (95% CI, 70%-91%), and 95% (95% CI, 75%-100%)/93.2% (95% CI, 84%-98%), respectively (NS). Adverse effects were seen in 26.3% and 32.5% of patients in the OAM group and the LAM group, respectively (NS). CONCLUSIONS: The 10-day PPI/AM re-treatment regimen is safe and effective, suggesting its usefulness as second-line treatment in Japan in patients who have failed initial treatment with the PPI/AC regimen. FAU - Nagahara, Akihito AU - Nagahara A AD - Department of Internal Medicine, Juntendo Koshigaya Hospital, Saitama, Japan. FAU - Miwa, Hiroto AU - Miwa H FAU - Kawabe, Masato AU - Kawabe M FAU - Kurosawa, Akihiko AU - Kurosawa A FAU - Asaoka, Daisuke AU - Asaoka D FAU - Hojo, Mariko AU - Hojo M FAU - Iijima, Katsuyori AU - Iijima K FAU - Terai, Takeshi AU - Terai T FAU - Ohkusa, Toshifumi AU - Ohkusa T FAU - Miyazaki, Akihisa AU - Miyazaki A FAU - Sato, Nobuhiro AU - Sato N LA - eng PT - Journal Article PL - Japan TA - J Gastroenterol JT - Journal of gastroenterology JID - 9430794 RN - 0 (2-Pyridinylmethylsulfinylbenzimidazoles) RN - 0 (Anti-Infective Agents) RN - 0 (Anti-Ulcer Agents) RN - 0 (Proton Pump Inhibitors) RN - 0K5C5T2QPG (Lansoprazole) RN - 140QMO216E (Metronidazole) RN - 804826J2HU (Amoxicillin) RN - KG60484QX9 (Omeprazole) SB - IM MH - 2-Pyridinylmethylsulfinylbenzimidazoles MH - Amoxicillin/administration & dosage/*therapeutic use MH - Anti-Infective Agents/administration & dosage/therapeutic use MH - Anti-Ulcer Agents/administration & dosage/therapeutic use MH - Drug Administration Schedule MH - Drug Therapy, Combination MH - Female MH - Helicobacter Infections/*drug therapy MH - *Helicobacter pylori MH - Humans MH - Lansoprazole MH - Male MH - Metronidazole/administration & dosage/*therapeutic use MH - Middle Aged MH - Omeprazole/administration & dosage/*analogs & derivatives/therapeutic use MH - *Proton Pump Inhibitors MH - Retreatment MH - Time Factors EDAT- 2004/12/08 09:00 MHDA- 2005/02/26 09:00 CRDT- 2004/12/08 09:00 PHST- 2003/12/16 00:00 [received] PHST- 2004/03/31 00:00 [accepted] PHST- 2004/12/08 09:00 [pubmed] PHST- 2005/02/26 09:00 [medline] PHST- 2004/12/08 09:00 [entrez] AID - 10.1007/s00535-004-1443-5 [doi] PST - ppublish SO - J Gastroenterol. 2004 Nov;39(11):1051-5. doi: 10.1007/s00535-004-1443-5.