Five Days Quadruple and Clarithromycin Containing Triple Therapy as Treatment for Helicobacter Pylori Eradication

May 26, 2015 updated by: Dr Ivan FN Hung, The University of Hong Kong

Five Days Quadruple and Clarithromycin Containing Triple Therapy as Empirical First and Second-Line Treatment for Helicobacter Pylori Eradication: a Randomized Crossover Trial

The aim of this randomized trial is to compare the efficacy and tolerability of H. pylori eradication with a 5-day quadruple therapy versus a clarithromycin-containing triple therapy.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Eligible patients with H pylori infection were randomized to receive either five-day QUAD (esomeprazole 20mg b.d., bismuth subcitrate 120mg q.i.d., tetracycline 250mg q.i.d. and metronidazole 250mg q.i.d.) or EAC (esomeprazole 20mg b.d., amoxicillin 1g b.d. and clarithromycin 500mg b.d.). H. pylori status was rechecked by 13C urea breath test 8 weeks after treatment. Patients who failed their respective therapy were invited to undergo H. pylori susceptibility testing and crossover to receive the alternative regimen for the same duration.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
800

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

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

  • Hong Kong
      • Hong Kong SAR, Hong Kong
        • The University of Hong Kong, Queen Mary 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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

21 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • patients with H. pylori infection
  • did not receive H. pylori eradication therapy before

Exclusion Criteria:

  • patients who have received previous H. pylori eradication therapy
  • co-morbidity of liver cirrhosis
  • co-morbidity of renal failure
  • co-morbidity of alcoholism
  • co-morbidity of malignancy
  • received antibiotics, bismuth preparations, proton pump inhibitors or probiotic in the preceding three months
  • patients with known allergy to the medications used
  • patients with a history of previous gastrointestinal diseases or gastric surgery
  • pregnancy

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: Crossover Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Active Comparator: Quadruple therapy

First line: 5 days esomeprazole 20mg b.d., bismuth subcitrate 120mg q.i.d., tetracycline 250mg q.i.d. and metronidazole 250mg q.i.d.

Cross over second line for those who failed first line: 7 days esomeprazole 20mg b.d., amoxicillin 1g b.d. and clarithromycin 500mg b.d
Drug: Quadruple therapy

First line: 5 days esomeprazole 20mg b.d., bismuth subcitrate 120mg q.i.d., tetracycline 250mg q.i.d. and metronidazole 250mg q.i.d.

Cross over second line for those who failed first line: 7 days esomeprazole 20mg b.d., amoxicillin 1g b.d. and clarithromycin 500mg b.d
Active Comparator: Triple Therapy
First line: 7 days esomeprazole 20mg b.d., amoxicillin 1g b.d. and clarithromycin 500mg b.d Second line cross over if failed first line: 7 days quadruple therapy: esomeprazole 20mg b.d., bismuth subcitrate 120mg q.i.d., tetracycline 250mg q.i.d. and metronidazole 250mg q.i.d.)
Drug: Triple therapy
First line: 7 days esomeprazole 20mg b.d., amoxicillin 1g b.d. and clarithromycin 500mg b.d Second line cross over if failed first line: 7 days quadruple therapy: esomeprazole 20mg b.d., bismuth subcitrate 120mg q.i.d., tetracycline 250mg q.i.d. and metronidazole 250mg q.i.d.)

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
H pylori eradication
Time Frame: 8 weeks after treatment
Successful H pylori eradication documented by urea breath test after first and second line treatments. Cross over if patients failed first line treatment
8 weeks after treatment

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Number of Participants with Adverse Events as a Measure of Safety and Tolerability
Time Frame: 10 weeks outpatient follow-up
Assessed adverse effects and compliance by standard questionnaire upon 10 weeks outpatient follow-up
10 weeks outpatient follow-up

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
The University of Hong Kong

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Ivan F Hung, MD MRCP, The University of Hong Kong

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

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
November 1, 2008

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
October 1, 2010

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
February 1, 2011

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
February 24, 2011

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 1, 2011

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
March 2, 2011

Study Record Updates

Last Update Posted (Estimate)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
May 28, 2015

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
May 26, 2015

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
May 1, 2015

More Information

Terms related to this study

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • HKU-HP1

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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