New stomach bug treatment could be simpler and smarter
NCT ID NCT07439445
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study is testing a 14-day treatment for Helicobacter pylori, a stomach infection that can cause ulcers and cancer. The treatment uses two drugs, vonoprazan and clarithromycin, and is guided by a stool test to check if the bacteria are resistant to clarithromycin. The goal is to see if this simpler approach works well and has fewer side effects. The study involves 70 adults who have not been treated for H. pylori before.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- vonoprazan and clarithromycin
- What this could lead to
- If successful, this could offer a simpler, more effective first-line treatment for H. pylori infection, reducing the risk of stomach ulcers and cancer.
- What could go wrong
- This is a small, early-phase study with only 70 participants, so results may not apply to everyone. The treatment may fail if the bacteria are resistant to clarithromycin, and side effects like nausea or diarrhea are possible.
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 70 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Apr 2026
- Expected to finish
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Feb 2027
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 to 70 years
- 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: 1. Aged 18-70 years; 2. Positive results for both ¹³C-urea breath test (¹³C-UBT) and fecal polymerase chain reaction (PCR), confirming Helicobacter pylori infection, with a clinical indication for H. pylori eradication as judged by the physician; 3. Treatment-naïve individuals with no prior history of H. pylori eradication therapy. Exclusion Criteria: 1. Pregnant or lactating women 2. Patients with a history of allergy to any drugs used in the eradication regimen 3. Patients with severe systemic diseases or malignant tumors 4. History of gastric resection surgery 5. Recent use of antibiotics or bismuth salts (within 4 weeks), H₂-receptor antagonists, proton pump inhibitors (PPIs), or Potassium-competitive acid blockers(P-CABs) (within 2 weeks).
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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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Peking University First Hospital
RECRUITINGBeijing, Beijing Municipality, 100034, China
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