Combination of Bismuth and Standard Triple Therapy Eradicates Helicobacter pylori Infection in More than 90% of Patients.

McNicholl AG, Bordin DS, Lucendo A, Fadeenko G, Fernandez MC, Voynovan I, Zakharova NV, Sarsenbaeva AS, Bujanda L, Perez-Aisa Á, Vologzhanina L, Zaytsev O, Ilchishina T, Coba C, Lasala JP, Alekseenko S, Modolell I, Molina-Infante J, Ruiz-Zorrilla Lopez R, Alonso-Galan H, Moreno NF, Hinojosa J, Santaella I, Varela P, Gonzalez-Cordero PL, Barrio J, Dominguez-Jimenez JL, Nuñez O, Alcedo J, Nyssen OP, Caldas M, Donday MG, Shvetz O, Megraud F, O'Morain C, Gisbert JP.

Clin Gastroenterol Hepatol. 2020 Jan;18(1):89-98. doi: 10.1016/j.cgh.2019.03.048. Epub 2019 Apr 10. PMID: 30978536

Abstract

Background & aims: Due to the poor eradication rates of standard triple therapy, the addition of bismuth salts has been proposed for first-line eradication of Helicobacter pylori. We assessed the effectiveness and safety of the combination of bismuth and the standard, clarithromycin-containing triple therapy in eradication of H pylori infection, using data from a large multi-center registry.

Methods: We performed an interim analysis of data from the European Registry on H pylori Management, a prospective trial registering clinical data and outcomes from infected patients from 27 countries in Europe since 2013. We extracted data on 1141 treatment-naïve patients who received first-line treatment with bismuth salts (240 mg) and a proton pump inhibitor (57% received esomeprazole, 18% received omeprazole, 11% received pantoprazole, and 14% received rabeprazole), amoxicillin (1 g), and clarithromycin (500 mg), all taken twice daily.

Results: Intention to treat and per-protocol rates of eradication were 88% and 94%, respectively. Intention to treat eradication increased to 93% in patients who received 14-day treatments. Adverse events occurred in 36% of patients; 76% of these events were mild, with a mean duration of 6 days. In multivariate analysis, eradication was associated with treatment compliance (odds ratio [OR], 13.0), a double dose (equivalent to 40 mg omeprazole) of proton pump inhibitor (OR, 4.7), and 14-day duration of treatment (OR, 2.0).

Conclusions: In an analysis of data from a large multi-center registry, we found the addition of bismuth to 14-day standard triple therapy with clarithromycin and amoxicillin to eradicate H pylori infection in more than 90% of patients, based on intention to treat analysis, with an acceptable safety profile and level of adherence. ClinicalTrials.gov no: NCT02328131.

Keywords: Antimicrobial; Bacteria; Database; Hp-EuReg; Optimized Treatment; PPI.