New acid blocker may beat standard drug for stomach bug
NCT ID NCT07165444
First seen Jun 26, 2026 · Last updated Jun 26, 2026
Summary
This study compares two types of acid-reducing drugs—vonoprazan (a newer drug) and rabeprazole (a standard drug)—when used as part of a 10-day combination therapy for H. pylori infection. About 320 adults with confirmed H. pylori will be randomly assigned to one of the two treatments. The main goal is to see which drug leads to higher eradication rates, with fewer side effects and better patient adherence.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- vonoprazan (potassium-competitive acid blocker) and rabeprazole (proton pump inhibitor)
- What this could lead to
- If successful, this could show that vonoprazan is more effective than rabeprazole at eradicating H. pylori when used in combination therapy, potentially improving treatment success rates.
- What could go wrong
- This is a relatively small, single-center trial. The results may not apply to all populations, and the study does not test long-term outcomes or recurrence.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 320 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Sep 2025
- Expected to finish
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Feb 2026
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Adults aged ≥18 years. * Both sexes. * Confirmed Helicobacter pylori infection by stool antigen (3rd-gen ELISA) or urea breath test (UBT). * No prior eradication therapy. Exclusion Criteria: * Prior Helicobacter pylori treatment. * Use of antibiotics, proton pump inhibitor, or bismuth in the prior 4 weeks. * Gastric surgery history. * Major organ failure. * Pregnancy or lactation. * Known allergy to study drugs.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Tanta University
RECRUITINGTanta, El-Gharbia, 31527, Egypt
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Other studies related to the condition(s) this trial covers.
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- Can viral markers predict who survives hepatitis b liver failure?
- Two antibiotic cocktails face off to wipe out stomach bacteria
- Could a routine blood count reveal hidden stomach infection?