Clinical trial Recruiting at 1 site Observational Ages Any age to 16

Diagnosing Helicobacter pylori in children using a stool test

Official title: Feasibility Study to Diagnose Helicobacter Pylori In The Paediatric Population Using Non-Invasive Fecal Analysis: the HEPYCA Study

Run by Poitiers University Hospital · NCT07083804 · Data updated 2026-11-12

This project will test whether a stool-based PCR can detect Helicobacter pylori and identify clarithromycin resistance in children who are having gastroscopy with biopsies.

Quick facts

Study typeObservational
AgesAny age to 16 Years
SexAll
Enrollment188 (estimated)
SponsorPoitiers University Hospital
Academic / other
Locations1 site (Poitiers)
StatusRecruiting
StartedOctober 7, 2025
Main results expectedOctober 2027
Study endsMarch 2028
Registry record updatedNovember 20, 2025
Trial IDNCT07083804 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Children aged 16 years or younger who are already scheduled for diagnostic gastroscopy with gastric biopsies and whose legal guardians consent (and who provide assent when appropriate).

Probably not a fit

Children recently treated with antibiotics or on recent proton pump inhibitor therapy, those with contraindications to endoscopy, or those unable to provide a stool sample may not benefit because results can be unreliable or the protocol cannot be completed.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational feasibility study will compare non-invasive stool PCR results to gastric biopsy findings obtained during routine pediatric gastroscopy. Stool samples will be collected and analyzed for H. pylori presence and clarithromycin resistance markers, and results will be compared with endoscopic biopsy plus histology/microbiology. The target population is children up to 16 years old who have a clinical indication for gastroscopy and whose parents provide consent. The work builds on promising adult data and aims to determine whether stool-based testing can reliably replace or reduce invasive diagnostic procedures in children.

Why it matters

Potential benefit: If successful, the test could allow diagnosis and antibiotic-resistance detection without invasive endoscopy and general anesthesia, lowering procedure risk and burden for children.

How similar studies have gone: Stool-based PCR has shown good detection and resistance-typing performance in adults, but pediatric evidence is limited and this is a feasibility effort in children.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age \< or = 16 years ;
* Any indication for gastroscopy in children requiring gastric biopsies: gastro-esophageal reflux resistant to proton pump inhibitors (PPIs) or recurrent on discontinuation of PPIs, hematemesis, refractory anemia or unexplained inflammatory syndrome, recurrent vomiting, dysphagia, endoscopic assessment of chronic inflammatory bowel disease with search for H. pylori superinfection ;
* Patients benefiting from a Social Security scheme or benefiting from one via a third part;
* Holders of parental authority who have given their informed consent to participate in the study and child participants of understanding age who have given their assent.

Non-inclusion Criteria:

* Antibiotic treatment less than 4 weeks
* PPIs treatment less than 2 weeks
* Contraindication to endoscopic procedure or biopsy.

Exclusion Criteria:

* Antibiotic therapy prior to stool collection (between inclusion and stool collection, which may be 10 days later)
* Failure to send/receive stool sample
* Biopsy not performed at endoscopy

Where it's running

  • Poitiers University Hospital
    Poitiers, France
    Recruiting

Study contacts

Similar studies

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 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.