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Clinical Study on the Eradication Rates and Gastric Cancer Prevention Efficacy Based on the "Household Antimicrobial Susceptibility Testing Strategy" for Helicobacter pylori

Clinical Study on the Eradication Rates and Gastric Cancer Prevention Efficacy Based on the "Household Antimicrobial Susceptibility Testing Strategy" for Helicobacter pylori

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2500113167
Enrollment
Unknown
Registered
2025-11-25
Start date
2025-12-15
Completion date
Unknown
Last updated
2025-12-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Helicobacter pylori infection

Interventions

Drug Resistance Information Sharing Group:The Drug Resistance Information-Sharing Group performed antibiotic susceptibility testing on only one member of each multi-infected household. The resulting r
Individual Testing Group:The Individual Testing Group performed antibiotic susceptibility testing for each member of the multi-infected household. Based on their respective resistance profiles, indepe

Sponsors

Shanghai Changhai Hospital
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 70 Years

Inclusion criteria

Inclusion criteria: 1. At least two family members have tested positive by urea breath test within the past three months. 2. All family members should have resided in the household for at least 5 years, for a minimum of 10 months each year. 3. All family members are aged 18 years or older. 4. Informed consent has been obtained from all family members themselves or their legal guardians.

Exclusion criteria

Exclusion criteria: 1. Pregnant or lactating women, individuals with mental disorders, or those with a recent pregnancy plan; 2. Individuals allergic to the trial medications (e.g., amoxicillin, clarithromycin, metronidazole, levofloxacin, tetracycline, PPIs, bismuth); 3. Use of PPIs or P-CABs within the past 2 weeks, or use of antibiotics, bismuth, or antibacterial Chinese herbal medicine within the past 4 weeks; 4. History of subtotal gastrectomy; 5. Severe organic digestive diseases (e.g., gastrointestinal malignancies, gastrointestinal bleeding, peptic ulcer with perforation/obstruction, intestinal obstruction, inflammatory bowel disease); 6. Severe systemic diseases (e.g., severe cardiovascular/cerebrovascular diseases, diabetes, chronic renal insufficiency, connective tissue diseases, neurological disorders); 7. Previous history of H. pylori eradication therapy; 8. Any other circumstances deemed by the investigators as unsuitable for enrollment or potentially affecting the subject's participation in the study.

Design outcomes

Primary

MeasureTime frame
Infection eradication rate;

Secondary

MeasureTime frame
Familial concordance rate of drug resistance profiles;Treatment adherence rate;

Countries

China

Contacts

Public ContactXianzhu Zhou

Changhai Hospital Affiliated to Second Military Medical University

zhouxianzhu1994@163.com+86 185 2194 5318

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026