Stool test could shorten h. pylori treatment to just 7 days
NCT ID NCT07405697
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tests whether a 7-day course of antibiotics chosen by a stool test works as well as a 14-day course for people with stubborn H. pylori infections. About 290 adults who have failed previous treatment will get a stool test to find which drugs their infection resists, then be randomly assigned to 7 or 14 days of tailored therapy. The goal is to see if the shorter treatment is just as effective, safer, and cheaper.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- A combination of antibiotics and acid-reducing drugs chosen based on a stool test
- What this could lead to
- If successful, this could make H. pylori rescue treatment shorter, cheaper, and more effective by using a simple stool test to guide drug choice.
- What could go wrong
- This is a Phase 4 trial, but it's not yet recruiting. The shorter 7-day course might not work as well as 14 days, and the stool test may not be widely available.
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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Phase 4
Runs after approval, following long-term safety and how well the treatment works in everyday use.
- Participants
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About 290 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Feb 2026
An estimate. Start dates often move.
- Expected to finish
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Dec 2028
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 75 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. Voluntarily participate in this clinical study; fully understand, be informed about this study, and sign the Informed Consent Form (ICF). 2. Age between 18 and 75 years (inclusive) on the day of signing the ICF. 3. 13C-urea breath test (13C-UBT) and fecal HP nucleic acid detection confirming Helicobacter pylori (Hp) infection. 4. previously eradicated HP Exclusion Criteria: 1. Individuals with a known allergy to the medication. 2. Patients with severe cardiovascular, pulmonary, renal, hepatic, hematologic, neurologic, endocrine, or psychiatric disorders; 3. Participants or guardians who refuse to enroll; 4. Alcohol and/or drug abuse (dependence or addiction) or individuals judged by the physician to have poor compliance; 5. Use of antibiotics, bismuth-containing drugs, PPIs, or traditional Chinese medicines within 4 weeks before treatment; 6. Pregnant or lactating women; 7. Any condition deemed by the investigator to be unsuitable for enrollment.
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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
4 sites. 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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Renji Hospital, School of Medicine, Shanghai Jiaotong University
Shanghai, Shanghai Municipality, 200000, China
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Shanghai Jiangong Hospitail.
Shanghai, Shanghai Municipality, China
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Shanghai Tenth People Hospital
Shanghai, Shanghai Municipality, China
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Zhongshan Hospital, Fudan University
Shanghai, China
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- Can a common seed oil boost stomach infection treatment?
- Two antibiotic cocktails face off to wipe out stomach bacteria
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- A simple breath test after a heart attack could prevent dangerous bleeding