• Irene Martinucci, Corrado Blandizzi, Giorgia Bodini, Elisa Marabotto, Vincenzo Savarino, Santino Marchi, Nicola de Bortoli, and Edoardo Savarino.
• a Division of Gastroenterology, Department of Translational Research and New Technologies in Medicine and Surgery , University of Pisa , Pisa , Italy.
• Expert Opin Pharmacother. 2017 Aug 1; 18 (11): 1145-1152.

IntroductionProton pump inhibitors (PPIs) display a number of limitations and unmet clinical needs that have prompted the development of novel drugs to improve the outcomes of acid-related diseases, including the eradication of H. pylori. In this context, a new synthesized potassium-competitive acid blocker (P-CAB), vonoprazan, showed higher suppression of gastric acid secretion. Areas covered: This review discusses the current knowledge regarding the efficacy of vonoprazan in the treatment of acid-related diseases, with a particular focus on its use in Helicobacter pylori eradication. Expert opinion: Vonoprazan showed some advantages over PPIs in terms of the pharmacokinetic and pharmacodynamic profile: fast onset of action without requiring acid activation and specific administration timing, more potent and prolonged inhibition of acid secretion, including a better nighttime acid control, and a less antisecretory variability. Recent evidence suggests that vonoprazan can be preferred to PPIs as maintenance therapy for reflux esophagitis and eradication of Helicobacter pylori owing to its stronger antisecretory effect. Moreover, vonoprazan displays favorable safety and tolerability profiles, even though long-term studies on the effects of vonoprazan are required.

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