Clinical trial Recruiting at 1 site Phase 2 Interventional Ages 18 to 80

Vonoprazan versus a proton pump inhibitor with vitamin D or probiotics added to triple antibiotics for H. pylori eradication

Official title: Safety and Efficacy of Vonoprazan vs Proton Pump Inhibitor With Vitamin D or Probiotics Based Triple Therapy for Eradication of Helicobacter Pylori Infection

Run by Tanta University · NCT07293910 · Data updated 2026-11-12

This trial tests whether replacing a PPI with vonoprazan and adding vitamin D or a probiotic to standard clarithromycin–amoxicillin therapy helps adults with H. pylori infection clear the bacteria.

More HELICOBACTER PYLORI INFECTIONS trials

Quick facts

PhasePhase 2
Study typeInterventional
Ages18 Years to 80 Years
SexAll
Enrollment132 (estimated)
SponsorTanta University
Academic / other
Locations1 site (Shibīn al Kawm)
StatusRecruiting
StartedFebruary 15, 2026
Main results expectedDecember 20, 2026
Study endsDecember 20, 2026
Registry record updatedSeptember 9, 2026
Trial IDNCT07293910 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults aged 18 to under 80 with a confirmed H. pylori infection who are not pregnant or lactating and who have not recently used antibiotics, PPIs, or H2 blockers are the intended participants.

Probably not a fit

Patients with prior H. pylori eradication therapy, recent antimicrobial or acid-suppressant use, active liver or renal disease, pregnancy/lactation, or allergies to study drugs are unlikely to benefit or be eligible.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This Phase 2 interventional trial randomizes adults with confirmed H. pylori infection to receive either vonoprazan- or PPI-based triple therapy (clarithromycin plus amoxicillin) combined with either vitamin D supplementation or a probiotic. Treatment is given per protocol and H. pylori eradication is checked using stool antigen, urea breath test, or endoscopy-based testing. Patients with recent antibiotic or acid-suppressing drug use, pregnancy, significant liver or renal disease, prior eradication therapy, or known allergy to regimen components are excluded. The study is conducted at Tanta University Hospital with follow-up testing to compare eradication rates and tolerability between arms.

Why it matters

Potential benefit: If successful, the regimen could raise H. pylori eradication rates and reduce treatment failures compared with conventional PPI-based triple therapy.

How similar studies have gone: Previous trials have shown vonoprazan can achieve higher eradication rates than PPIs in some settings, while evidence for added benefit from vitamin D or probiotics is mixed and less conclusive.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Both male and female patients. • Patients ≥ 18 and \<80 years old.

Patients with confirmed diagnosis of H. pylori infection using either stool antigen test, urea breath test or endoscopy (n=66) Patient whom are confirmed to be H-pylori negative using either stool antigen test, urea breath test or endoscopy (n=66)

Exclusion Criteria:

* Pregnant or lactating patients. • Patients with inflammatory diseases. • Patients sensitive to any of the regimens' components. • Patients who had received a previous eradication therapy, recent use of antimicrobial agents, proton pump inhibitors, and H2 receptor blockers within 1 month.

Patients with previous incidents of gastric or duodenal bleeding, gastric surgery or gastric malignancy.

• Patients with active liver disease.

• Patients with renal impairment.

• Concurrent use of liver enzyme inducers, inhibitors or drugs with high plasma protein binding.

Where it's running

  • National liver institute - Menoufia university - egypt
    Shibīn al Kawm, Egypt
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.