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Efficacy of tailored second-line therapy of Helicobacter pylori eradication in patients with clarithromycin-based treatment failure: a multicenter prospective study.

ABSTRACT: Background:After the failure of clarithromycin- and bismuth-based quadruple therapy (CBQT), levofloxacin- and bismuth-based quadruple therapy (LBQT) is recommended for Helicobacter pylori eradication. We compared the efficacies of second-line tailored bismuth-based quadruple therapy (TBQT) and empirical LBQT. Methods:Patients with CBQT failure were randomly assigned to receive TBQT or LBQT for 14 days. All patients underwent endoscopy for culture-based antibiotic susceptibility testing. Patients in the TBQT group exhibiting levofloxacin susceptibility were randomized to receive amoxicillin, levofloxacin, esomeprazole, and colloidal bismuth pectin (ALEB) or amoxicillin, furazolidone, esomeprazole, and colloidal bismuth pectin (AFEB) for 14 days; patients with levofloxacin resistance received AFEB. Results:From May 2016 to June 2019, 364 subjects were enrolled. Eradication rates were significantly higher in the TBQT group (n?=?182) than in the LBQT group (n?=?182) according to both intention-to-treat (ITT) analysis (89.6% vs. 64.8%, P?

SUBMITTER: Kong S

PROVIDER: S-EPMC7456506 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature

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Efficacy of tailored second-line therapy of <i>Helicobacter pylori</i> eradication in patients with clarithromycin-based treatment failure: a multicenter prospective study.

Kong Siya S Huang Keting K Wang Jun J Wang Xiaoyong X Yang Ningmin N Dong Yu Y Zhuang Ya Y Dang Yini Y Zhang Guoxin G Ye Feng F

Gut pathogens 20200829

<h4>Background</h4>After the failure of clarithromycin- and bismuth-based quadruple therapy (CBQT), levofloxacin- and bismuth-based quadruple therapy (LBQT) is recommended for <i>Helicobacter pylori</i> eradication. We compared the efficacies of second-line tailored bismuth-based quadruple therapy (TBQT) and empirical LBQT.<h4>Methods</h4>Patients with CBQT failure were randomly assigned to receive TBQT or LBQT for 14 days. All patients underwent endoscopy for culture-based antibiotic susceptibi ...[more]

PMID: 32874206

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Project description:Summary of Trial Design.Lengthy exposure to quinolone-containing triple therapy in Helicobacter pylori eradication leads to the development of drug resistance. Sequential therapy with a quinolone and metronidazole -containing regimen appears to be an effective treatment option. This randomized controlled trial aimed to compare the efficacy of 5-plus 5 days' levofloxacin and metronidazole-containing sequential therapy (EALM) with that of 10-day levofloxacin-containing triple therapy (EAL) in second-line H pylori eradication treatment.One hundred and sixty-four patients who had failed the H pylori eradication attempts using the standard triple therapy (proton pump inhibitor bid, clarithromycin 500?mg bid, amoxicillin 1?g bid?×?7 days) were randomly assigned to either an EALM therapy group (n?=?82; esomeprazole 40?mg bid and amoxicillin 1?g bid for 5 days, followed by esomeprazole 40?mg bid, levofloxacin 500?mg qd, and metronidazole 500?mg tid, for 5 days) or a 10-day EAL therapy group (n?=?82; levofloxacin 500?mg qd, amoxicillin 1?g bid, and esomeprazole 40?mg bid). One patient was lost to follow-up in each group. Follow-up for H pylori status was performed 4 to 8 weeks later.Eradication rates for the EALM and EAL groups were 90.2% (74/82, 95% confidence interval [CI]?=?83.7%-96.8%) and 80.5% (66/82, 95% CI?=?71.7%-89.2%, P?=?0.077) in the intention-to-treat analysis; and 91.4% (74/81, 95% CI?=?85.1%-97.6%) and 81.5% (66/81, 95% CI?=?72.8%-90.1%, P?=?0.067) in the per-protocol analysis. The adverse events for the EALM and EAL groups were 23.5% versus 11.1%, P?=?0.038 but were all very mild and were well tolerated except for 1 patient with poor compliance. The compliances were 98.8% and 100%, respectively, between the 2 groups. An antibiotic resistance to levofloxacin was the clinical factor influencing the efficacy of H. pylori eradication therapy in the EAL group, and dual resistance to levofloxacin and metronidazole in the EALM group.Levofloxacin and metronidazole-containing sequential therapy achieved a >90% eradication rate as a second-line H pylori therapy. Dual antibiotic resistance to levofloxacin and metronidazole was the clinical factor influencing the efficacy of H pylori eradication therapy in the sequential therapy (ClinicalTrials.gov number: NCT02596620).

Dataset Information

Efficacy of tailored second-line therapy of Helicobacter pylori eradication in patients with clarithromycin-based treatment failure: a multicenter prospective study.

Publications

Efficacy of tailored second-line therapy of <i>Helicobacter pylori</i> eradication in patients with clarithromycin-based treatment failure: a multicenter prospective study.

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