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Completed

NCT Number: NCT01513785

New Dual Therapy for Primary Treatment of Helicobacter Pylori Infection：a Pilot Study

The efficacy of traditional triple therapy has been decreased to such an unacceptable level as 70% in many areas. The study is based on the hypothesis: the most important factors which influence the effect of Helicobacter pylori (H. pylori) eradication included acid suppression intensity and sensitivity of antibiotics. So the investigators chose dual therapy because it is simple and verified to be useful. Rabeprazole, as a new proton pump inhibitor (PPI), is reported to be less susceptible to the influence of genetic polymorphisms for CYP2C19. So it has a greater and faster acid suppression effect compared to other PPIs. Amoxicillin is one of effective antibiotics to H. pylori with few side effects. The antibiotic resistance of Amoxicillin is no more than 3% in China. The purpose of our trial is to evaluate and compare the efficacy and safety of dual therapy regimens with different doses of Rabeprazole for initial treatment of H. pylori infection.

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Key information

Conditions

Functional Dyspepsia

Age range

18 year–70 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 2

Primary location

GI Division, Shanghai Jiao-Tong University School of Medicine Renji Hospital

Shanghai, Shanghai Municipality, 200001, China

About this study

The current recommended triple regimen for H. pylori treatment provides unacceptable low success rates because of high antibiotic resistance and poor compliance. Dual therapy had been used before and can be modified to get good eradication rate. The aim of our trial is to evaluate and compare the efficacy and safety of dual therapy regimens for initial treatment of H. pylori infection. A total of forty patients with non-ulcer dyspepsia and H. pylori infection were randomized to receive either Rabeprazole 10 mg b.i.d. and Amoxicillin 1000 mg t.i.d., for 14 days (R10A), or high-dose Rabeprazole 20 mg twice a day (b.i.d.) and Amoxicillin 1000 mg three times a day (t.i.d) (R20A) for 14 days. H. pylori strains were isolated and antibiotic resistance was measured by the twofold agar dilution method. H. pylori eradication was assessed by 13C-urea breath test at 4 weeks after treatment.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

Patients aged from 18 to 70 years, who presented with upper gastrointestinal symptoms and endoscopically proven H. pylori-positive non-ulcer dyspepsia, were recruited into the study.

Exclusion criteria

  • patients with peptic ulcer,
  • previous H. pylori eradication treatment,
  • previous gastric surgery,
  • pregnancy,
  • lactation,
  • major systemic diseases,
  • receipt of anti-secretory therapy,
  • antibiotics or bismuth in the preceding four weeks, or - allergy to any one of the medications in the regimen.

Treatment and study plan

Rabeprazole and Amoxicillin

Drug

Amoxicillin (Zhuhai United Laboratories Co., Zhuhai, China) 1g t.i.d and Rabeprazole (Misato Plant of Eisai Co., Ltd. Japan) 10 mg b.i.d.for 14 days.

Other names: Amoxycillin Capsules, Sodium Rabeprazole Enteric-coated Tablets

Amoxicillin and Rabeprazole

Drug

Amoxicillin (Zhuhai United Laboratories Co., Zhuhai, China) 1 g t.i.d and Rabeprazole (Misato Plant of Eisai Co., Ltd. Japan) 20 mg b.i.d. for 14 days

Other names: Amoxycillin Capsules, Sodium Rabeprazole Enteric-coated Tablets

Primary outcomes

  1. 13C-urea breath test

    Time frame: 4 weeks after treatment

    When the outcome of 13C-urea breath test is more than 4%, the helicobacter pylori infection is still exist(positive).

Secondary outcomes

  1. antibiotic resistance

    Time frame: 3 weeks

    H. pylori strains were isolated and antibiotic resistance was measured by the twofold agar dilution method.Minimal inhibitory concentrations (MIC) of Metronidazole (Met), Clarithromycin (Cla), and Amoxicillin (Amo) were determined.MIC of Met>8ug/ml, Cla>2ug/ml, Amo>8ug/ml were determined as resistance breakpoints

Sponsors and collaborators

Lead sponsor

Shanghai Jiao Tong University School of Medicine

Other

Registry information

Important dates

Study start
2011
Primary completion
2011
Study completion
2012
First posted
Jan 20, 2012
Registry last updated
Jan 20, 2012

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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