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Bismuth-Metronidazole Triple Therapy for H. Pylori First-line Treatment

Bismuth-Metronidazole Triple Versus Quadruple Therapy for Helicobacter Pylori First-line Treatment: A Randomized Controlled Trial

Status
UNKNOWN
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04667299
Enrollment
270
Registered
2020-12-14
Start date
2020-12-20
Completion date
2021-12-31
Last updated
2020-12-22

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

This randomized controlled clinical trial will compare the eradication efficacy of bismuth-metronidazole triple therapy (PPI+bismuth+ metronidazole) with that of bismuth-metronidazole quadruple therapy (PPI+bismuth+ metronidazole+ amoxicillin) for Helicobacter pylori first-line treatment. The completion of this trial will expand new therapy for the treatment of Helicobacter pylori, which can not only ensure clinical efficacy, but also reduce the use of antibiotics.

Interventions

DRUGMetronidazole

0.4g qid

DRUGAmoxicillin

1g bid

DRUGRabeprazole

20mg bid

DRUGBismuth potassium citrate

0.6g bid

Sponsors

Shanghai Zhongshan Hospital
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

* Participate in the trial voluntarily, fully understand the trial, and sign the informed consent form (ICF). * 18-75 years old on the day of signing the ICF. * Helicobacter pylori infection confirmed by 13C-urea breath test or rapid urease test. * Have not received Helicobacter pylori eradication treatment before.

Exclusion criteria

* Have received Hp eradication treatment. * Patients with severe heart, lung, kidney, liver, blood, nerve, endocrine, and psychiatric diseases. * Subjects or guardians refused to participate in the trial. * Alcohol and/or drugs Abuse (addiction or dependence) or poor compliance with doctor's judgment. * Have taken antibiotics, bismuth, PPI or Chinese traditional medicine 4 weeks before treatment. * Pregnant or lactating women. * Active peptic ulcer. * allergic to drugs used in the trial. * any other circumstances that are not suitable for recruitment.

Design outcomes

Primary

MeasureTime frameDescription
Eradication rate of Helicobacter pyloriAt least 4 weeks after completion of therapyEradication of Helicobacter pylori was defined as negative result of urea breath test (\<4‰ cut-off value).

Secondary

MeasureTime frameDescription
Eradication rate of Helicobacter pylori metronidazole-resistant strainsAt least 4 weeks after completion of therapyEradication of Helicobacter pylori was defined as negative result of urea breath test (\<4‰ cut-off value). The strains with minimal inhibitory concentration (MIC) value of metronidazole \>8 μg/ml were defined as resistant strains.
Eradication rate of Helicobacter pylori metronidazole-susceptible strainsAt least 4 weeks after completion of therapyEradication of Helicobacter pylori was defined as negative result of urea breath test (\<4‰ cut-off value). The strains with metronidazole MIC value \<=8 μg/ml were defined as susceptible strains.

Other

MeasureTime frameDescription
Adherence rateAt least 1 weeks after completion of therapyAdherence was defined as poor when subjects took less than 80% of the total medication.
Frequency of adverse eventsAt least 1 weeks after completion of therapyAny possible adverse events during the 14-day treatment period were recorded.

Countries

China

Contacts

Primary ContactQi Chen, MD
chenqimd@163.com86-17811921405

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026