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Recommendations and Adjuvant Therapies to Mitigate Clarithromycin-Resistant Helicobacter pylori-Associated Infections in Africa

Dossouvi KM, Sellera FP, Ibadin EE, Gnagnon KW, Elkelish A

Infection and drug resistance, 2025

Abstract

Helicobacter pylori, (H. pylori) is responsible for approximately 90% of the global burden of non-cardiac gastric cancer. In Africa, first-line therapy combines antimicrobials (eg, amoxicillin and clarithromycin) with proton pump inhibitors (PPIs), whereas second-line therapies (levofloxacin-based triple therapy, sequential non-bismuth quadruple therapy, or bismuth-based quadruple therapy) combine antimicrobials (amoxicillin, clarithromycin, nitroimidazole, levofloxacin, or tetracycline) with PPIs and bismuth compounds. Antimicrobial-resistant H. pylori strains have been widespread worldwide and clarithromycin-resistant H. pylori strains (CRHp) are emerging as a seven-fold risk of treatment failure when using a clarithromycin-based regimen. Efficient prevention, detection, and treatment of CRHp-associated infections have become imperative in Africa and should be in accordance with the reality of the African continent. In this mini-review, we briefly highlighted the problem of the emergence of CRHp isolates in Africa and provided recommendations and adjuvant therapies for the successful prevention, detection and treatment of CRHp-associated infections in Africa. The recommendations included the implementation of prevention measures, standardized antimicrobial susceptibility testing methods, strengthening the surveillance, and promoting antimicrobial stewardship, while phytotherapy and probiotics were discussed as potential adjuvant therapies to conventional antimicrobial…

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