Long-term Follow up Helicobacter Pylori Reinfection Rate After Second-Line Treatment: Bismuth-Containing Quadruple Therapy Versus Moxifloxacin-Based Triple Therapy

February 14, 2013 updated by: Nayoung Kim, Seoul National University Bundang Hospital
patients who had failed previous H. pylori eradication on standard triple therapy were randomized into two regimens: 1, esomeprazole (20 mg b.i.d), tripotassium dicitrate bismuthate (300 mg q.i.d), metronidazole (500 mg t.i.d), and tetracycline (500 mg q.i.d) (EBMT) or 2, moxifloxacin (400 mg q.d.), esomeprazole (20 mg b.i.d), and amoxicillin (1000 mg b.i.d.) (MEA). At four weeks after completion of eradication therapy, H. pylori tests were performed with 13C urea breath test (UBT) or invasive tests (Giemsa histology, CLO test, and culture). In patients who maintained continuous H. pylori negativity for the first year after eradication therapy, H. pylori status was assessed every year. For the evaluation of risk factors of reinfection, gender, age, clinical diagnosis, histological atrophic gastritis or intestinal metaplasia were analyzed.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

648

Phase

  • Phase 4

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Korea, Republic of
    • Gyeonggi-do
      • Seongnam, Gyeonggi-do, Korea, Republic of
        • Seoul National University Bundang Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

23 years to 84 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Patients were considered persistent H. pylori infection if 13C-urea breath test (UBT) or invasive H. pylori test (Giemsa histology, CLO test, culture) were positive despite PPI-based triple therapy.

Exclusion Criteria:

  • Patients were excluded from the study if they had a history of renal or hepatic impairment, previous gastric surgery, pregnancy or lactation, therapy with steroids or non-steroidal anti-inflammatory drugs, or therapy with a proton pump inhibitor (PPI) or antibiotics within four weeks of entry.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: MEA
MEA: moxifloxacin (400 mg q.d.), esomeprazole (20 mg b.i.d), and amoxicillin (1000 mg b.i.d.)
Drug: esomeprazole
Drug: moxifloxacin
Drug: amoxicillin
Active Comparator: EBMT
EBMT: esomeprazole (20 mg b.i.d), tripotassium dicitrate bismuthate (300 mg q.i.d), metronidazole (500 mg t.i.d), and tetracycline (500 mg q.i.d)
Drug: esomeprazole
Drug: metronidazole
Drug: tripotassium dicitrate bismuthate
Drug: tetracycline

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Helicobacter pylori reinfection rate
Time Frame: From date of randomization until the date of first documented reinfection of Helicobacter pylori, whichever came first, assessed up to 90 months
From date of randomization until the date of first documented reinfection of Helicobacter pylori, whichever came first, assessed up to 90 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Seoul National University Bundang Hospital

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

January 1, 2003

Primary Completion (Actual)

December 1, 2010

Study Completion (Actual)

December 1, 2010

Study Registration Dates

First Submitted

February 12, 2013

First Submitted That Met QC Criteria

February 14, 2013

First Posted (Estimate)

February 15, 2013

Study Record Updates

Last Update Posted (Estimate)

February 15, 2013

Last Update Submitted That Met QC Criteria

February 14, 2013

Last Verified

February 1, 2013

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • B-0603/031-013

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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