New study tests cheaper h. pylori treatment to beat antibiotic resistance
NCT ID NCT07574983
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study compares two 14-day treatments for H. pylori, a stomach bacteria that can cause ulcers and cancer. About 90 adults will receive either a levofloxacin-based sequential therapy or a bismuth-based quadruple therapy. The goal is to see which treatment works better and has fewer side effects, aiming to find an affordable option for areas with high antibiotic resistance.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Levofloxacin-based sequential therapy (dexlansoprazole, amoxicillin, levofloxacin, tinidazole) and bismuth-based quadruple therapy (bismuth subsalicylate, dexlansoprazole)
- What this could lead to
- If successful, this could identify a more effective and affordable first-line treatment for H. pylori infection, especially in areas with high antibiotic resistance.
- What could go wrong
- This is a small, early-stage trial with only 90 participants, so results may not apply to everyone. Both treatments can cause side effects like nausea or diarrhea, and antibiotic resistance may still limit effectiveness.
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 90 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Jun 2026
An estimate. Start dates often move.
- Expected to finish
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Dec 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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20 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.
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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 20 years and older * Confirmed Helicobacter pylori infection by stool antigen testing * Willingness to comply with the assigned treatment regimen * Ability to provide informed consent * Willingness to complete follow-up evaluation Exclusion Criteria: * Use of antibiotics within 4 weeks prior to enrollment * Active gastrointestinal infection other than Helicobacter pylori * Previous gastrointestinal tract surgery * Pregnant or lactating females * Known allergy or intolerance to study medications * Psychiatric illness or other condition impairing treatment compliance * Severe comorbid illness making participation unsuitable in the investigator's judgment
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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 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.
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- Can a Two-Drug combo beat a stubborn stomach bug?
- A 10-Day h. pylori cure? new trial tests a streamlined approach
- Stomach bug tied to belly fat and blood sugar issues?
- New acid reducer shows promise in fighting stomach bug
- Could adding bismuth boost stomach bug treatment?