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Simplified Dual Regimen Guided by Fecal Clarithromycin Resistance Gene Detection for First-line H. Pylori Eradication

Efficacy and Safety of Simplified Regimen Guided by Fecal Clarithromycin Resistance Gene Detection for First-line Helicobacter Pylori Eradication

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07439445
Enrollment
70
Registered
2026-02-27
Start date
2026-04-25
Completion date
2027-02-13
Last updated
2026-04-30

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

Conditions

Helicobacter Pylori Infection

Brief summary

To investigate the efficacy, safety, and compliance of a simplified strategy using vonoprazan plus clarithromycin for first-line treatment in patients with Helicobacter pylori infection, among those infected with strains without clarithromycin resistance gene mutations based on fecal clarithromycin resistance gene detection.

Interventions

DRUGVonoprazan 20 mg twice daily + clarithromycin 500 mg twice daily for 14 days

Participants receive vonoprazan 20 mg orally twice daily plus clarithromycin 500 mg orally twice daily for 14 consecutive days.

Sponsors

Peking University First Hospital
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
No

Inclusion criteria

1. Aged 18-70 years; 2. Positive results for both ¹³C-urea breath test (¹³C-UBT) and fecal polymerase chain reaction (PCR), confirming Helicobacter pylori infection, with a clinical indication for H. pylori eradication as judged by the physician; 3. Treatment-naïve individuals with no prior history of H. pylori eradication therapy.

Exclusion criteria

1. Pregnant or lactating women 2. Patients with a history of allergy to any drugs used in the eradication regimen 3. Patients with severe systemic diseases or malignant tumors 4. History of gastric resection surgery 5. Recent use of antibiotics or bismuth salts (within 4 weeks), H₂-receptor antagonists, proton pump inhibitors (PPIs), or Potassium-competitive acid blockers(P-CABs) (within 2 weeks).

Design outcomes

Primary

MeasureTime frameDescription
Eradication rate of H. pylori4 weeks after the completion of treatmentH. pylori eradication rate assessed by¹³C-urea breath test at 4 weeks after the completion of treatment.

Secondary

MeasureTime frameDescription
incidence of adverse reactionsAt the end of the 14-day medication period (Day 14)The incidence of adverse reactions refers to the proportion of participants who experience any adverse reactions related to the study drugs (vonoprazan and clarithromycin) during the 14-day medication period.
ComplianceAt the end of the 14-day medication period (Day 14)Medication compliance rate (proportion of participants with good compliance, defined as compliance rate ≥ 80%).

Countries

China

Contacts

CONTACTWeihong Wang, MD, PhD
wangweihong2581@163.com13041171610
CONTACTMeng Li
dr_limeng@163.com18612034366
PRINCIPAL_INVESTIGATORWeihong Wang, MD, PhD

Peking University First Hospital

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 1, 2026