Study Comparing Sequential and Concomitant Therapy for Helicobacter Pylori Eradication in Routine Clinical Practice

Summary

Helicobacter pylori is the main cause of chronic gastritis, peptic ulcer and gastric tumors (adenocarcinoma and lymphoma). The cure of the H. pylori infection prevents recurrence of duodenal and gastric ulcer and improves dyspepsia in a significant proportion of cases, so it is cost-effective. Eradication therapy has changed over time. The usually recommended pattern in the consensus conferences has traditionally been triple therapy, composed by the combination of 2 antibiotics (clarithromycin plus amoxicillin or metronidazole) and a proton pump inhibitor (PPI) for 7-14 days. Recent meta-analyses have that the current global eradication rate after standard triple therapy is less than 80%. Several European studies have found even lower eradication rates, with 35-40% of cases resulting in treatment failure. Treatment failure leads to a second treatment and a new diagnostic test to confirm eradication.

Timeline

Start

2010-12

Primary completion

2012-06

Completion

2012-07

Publications

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• Background Neville PM, Everett S, Langworthy H, Tompkins D, Mapstone NP, Axon AT, Moayyedi P. The optimal antibiotic combination in a 5-day Helicobacter pylori eradication regimen. Aliment Pharmacol Ther. 1999 Apr;13(4):497-501. doi: 10.1046/j.1365-2036.1999.00493.x.
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• Background Wu DC, Hsu PI, Wu JY, Opekun AR, Kuo CH, Wu IC, Wang SS, Chen A, Hung WC, Graham DY. Sequential and concomitant therapy with four drugs is equally effective for eradication of H pylori infection. Clin Gastroenterol Hepatol. 2010 Jan;8(1):36-41.e1. doi: 10.1016/j.cgh.2009.09.030. Epub 2009 Oct 3.
• McNicholl AG, Marin AC, Molina-Infante J, Castro M, Barrio J, Ducons J, Calvet X, de la Coba C, Montoro M, Bory F, Perez-Aisa A, Forne M, Gisbert JP; Participant Centres. Randomised clinical trial comparing sequential and concomitant therapies for Helicobacter pylori eradication in routine clinical practice. Gut. 2014 Feb;63(2):244-9. doi: 10.1136/gutjnl-2013-304820. Epub 2013 May 11.

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Indications