Improving treatment for Helicobacter pylori infections with minocycline

Optimization of Minocycline-containing Bismuth Quadruple Therapy for Helicobacter Pylori Rescue Treatment: a Multicentre, Randomized Controlled Trial

Phase 4 Interventional Shanghai Jiao Tong University School of Medicine · NCT06561711

This study is testing a new treatment that combines minocycline with other medications to see if it can help people with stubborn Helicobacter pylori infections get better when standard treatments haven't worked.

Quick facts

PhasePhase 4
Study typeInterventional
Enrollment476 (estimated)
Ages18 Years to 80 Years
SexAll
SponsorShanghai Jiao Tong University School of Medicine Academic / other
Locations4 sites (Beijing, Beijing and 3 other locations)
Trial IDNCT06561711 on ClinicalTrials.gov

What this trial studies

This study evaluates the effectiveness and tolerability of a 14-day bismuth-containing quadruple rescue therapy that includes different dosages of minocycline and metronidazole for patients with refractory Helicobacter pylori infections. The goal is to optimize the minocycline-based regimen to achieve higher eradication rates while minimizing adverse events compared to classical bismuth quadruple therapy. Participants must have a confirmed H. pylori infection and prior treatment experience. The study aims to provide a more effective treatment option for patients who have not responded to standard therapies.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18 to 80 with confirmed Helicobacter pylori infection who have previously undergone treatment.

Not a fit: Patients who are naive to H. pylori treatment, under 18 or over 80 years old, or have certain medical histories may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide a more effective and safer treatment option for patients suffering from difficult-to-treat Helicobacter pylori infections.

How similar studies have performed: Other studies have shown promise with similar approaches, but this specific optimization of minocycline is a novel investigation.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Ability and willingness to participate in the study and to sign and give informed consent
* Confirmed H. pylori infection and with previous treatment experience

Exclusion Criteria:

* subjects naive to H. pylori treatment,
* under 18 or over 80 years old
* history of gastrectomy
* pregnant or lactating women
* Previous history of tuberculosis
* Allergy to any of the study drugs
* severe systemic diseases or malignancy
* administration of antibiotics, bismuth, antisecretory drugs, or Chinese herb medicine in the preceding 8 weeks

Where this trial is running

Beijing, Beijing and 3 other locations

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Helicobacter Pylori InfectionHelicobacter pylorirescue therapyminocyclinetetracycline
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.