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Nanjing study reveals h. pylori resistance trends in thousands of patients

NCT ID NCT07455448

Knowledge-focused Sponsor: Nanjing First Hospital, Nanjing Medical University Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looked at 7,227 patients in Nanjing to understand how resistant the H. pylori bacteria is to common antibiotics. The goal was to find out which antibiotics still work best and to help doctors choose the right treatment for each patient. No new treatments were tested; instead, the study gathered information to improve future care.

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.

Participants

7,227 people

The number who actually took part.

Started

Mar 2026

Finished

Mar 2026

Lead sponsor

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.

Who is studied

Patient records were retrieved from the electronic medical record system and laboratory information system of Nanjing First Hospital. The search identified all outpatients who underwent H. pylori culture and genetic testing at the gastroenterology clinic between January 1, 2018, and December 31, 2024, according to pre-defined inclusion and exclusion criteria.

Ages

Children (under 18), adults (18 to 64) and older adults (65 and over)

Sex

Anyone

Healthy volunteers

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

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: 1. Patients who visited the Gastroenterology Department of Nanjing First Hospital and underwent gastroscopy with H. pylori culture and genetic testing between 2018 and 2024. 2. Positive for H. pylori by at least one diagnostic method (13C-urea breath test, rapid urease test, or histopathology). 3. Provision of general written informed consent for the use of gastroscopy and specimen data in research. 4. Availability of complete medical records and laboratory test results. Exclusion Criteria: 1. Withdrawal of informed consent; use of antibiotics, proton pump inhibitors, H2-receptor antagonists, or bismuth agents within four weeks prior to gastroscopy. 2. History of gastric surgery. 3. Incomplete medical records or test results precluding evaluation. 4. Other factors deemed by the investigator to render the participant unsuitable for inclusion.

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Conditions

The condition(s) this trial relates to.

Helicobacter pylori infectious disease

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Helicobacter pylori infections

Contacts and locations

Locations

  • Nanjing First Hospital

    Nanjing, Jiangsu, 210006, China

More trials for these conditions

Other studies related to the condition(s) this trial covers.