Efficacy of Potassium-Competitive Acid Blockers Versus Proton Pump Inhibitors in Eradication Regimens for Clarithromycin-Resistant Helicobacter pylori: A Systematic Review and Meta-Analysis

Background

Clarithromycin resistance represents the primary obstacle to the success of conventional proton pump inhibitor (PPI)-based triple therapy for Helicobacter pylori (H. pylori) eradication. Potassium-competitive acid blockers (P-CABs) offer faster and more potent acid suppression, which may enhance the efficacy of eradication regimens in this resistant population. The present study aimed to systematically evaluate the comparative efficacy of P-CAB-based versus PPI-based eradication regimens specifically in adult patients with documented clarithromycin-resistant H. pylori infection.