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Vonoprazan and Amoxicillin for 14 days

The First Affiliated Hospital with Nanjing Medical University · FDA-approved active Small molecule

Vonoprazan inhibits gastric acid secretion by blocking the proton pump, while amoxicillin is a beta-lactam antibiotic that kills Helicobacter pylori bacteria.

Vonoprazan inhibits gastric acid secretion by blocking the proton pump, while amoxicillin is a beta-lactam antibiotic that kills Helicobacter pylori bacteria. Used for Helicobacter pylori eradication in peptic ulcer disease, H. pylori-associated gastritis.

At a glance

Generic nameVonoprazan and Amoxicillin for 14 days
Also known asVADT-14
SponsorThe First Affiliated Hospital with Nanjing Medical University
Drug classProton pump inhibitor (vonoprazan) + beta-lactam antibiotic (amoxicillin)
TargetH+/K+-ATPase (vonoprazan); bacterial penicillin-binding proteins (amoxicillin)
ModalitySmall molecule
Therapeutic areaGastroenterology / Infectious Disease
PhaseFDA-approved

Mechanism of action

This is a combination therapy for H. pylori eradication. Vonoprazan is a potassium-competitive acid blocker (P-CAB) that irreversibly inhibits the H+/K+-ATPase pump in gastric parietal cells, creating an acidic environment hostile to the bacteria while allowing amoxicillin to penetrate and act effectively. Amoxicillin disrupts bacterial cell wall synthesis by inhibiting penicillin-binding proteins, leading to bacterial death.

Approved indications

Common side effects

Key clinical trials

Primary sources

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SourceUsed for
ClinicalTrials.govTrial enrolment, design, endpoints, results