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Efficacy of High-dose Dual Therapy vs Bismuth-containing Quadruple Therapy for First-line Treatment of Hp Infection

Information source: National Taiwan University Hospital
ClinicalTrials.gov processed this data on August 23, 2015
Link to the current ClinicalTrials.gov record.

Condition(s) targeted: Helicobacter Pylori Infection

Intervention: High-dose dual therapy (rabeprazole, amoxicillin) (Drug); Bismuth-containing quadruple therapy (rabeprazole, tripotassium dicitrate bismuthate, metronidazole, tetracycline) (Drug)

Phase: Phase 4

Status: Recruiting

Sponsored by: National Taiwan University Hospital

Official(s) and/or principal investigator(s):
Jyh-Chin Yang, M.D.Ph.D., Principal Investigator, Affiliation: National Taiwan University Hospital

Overall contact:
Jyh-Chin Yang, M.D.Ph.D., Phone: 02-23123456, Ext: 65055, Email: jcyang47@ntu.edu.tw

Summary

Up to now, there is few randomized, large scale study prospectively and simultaneously comparing the efficacy, adverse effects and patient adherence of high-dose dual therapy (HDDT) and bismuth-containing quadruple therapy (BQT) as 1st-line regimens for H. pylori eradication. The aims of this study are: 1. to compare the efficacy of HDDT, and BQT as 1st-line regimen in H. pylori eradication; 2. to compare the patient adherence and adverse effects of these treatment regimens; 3. to investigate factors that may influence H. pylori eradication by these treatment regimens.

Clinical Details

Official title: Efficacy of High-dose Dual Therapy Versus Bismuth-containing Quadruple Therapy for First-line Treatment of Helicobacter Pylori Infection - A Prospective, Randomized, Comparative Study

Study design: Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment

Primary outcome: The eradication rates as a measure of the efficacy of HDDT, and BQT

Secondary outcome:

Number of participants with adverse effects as a measure of safety

Amount of unused medication post treatment as a measure of patient adherence.

Detailed description: Participants, aged ≥ 20, having H. pylori-positive chronic gastritis with/without peptic ulcers (duodenal or gastric ulcers) will be recruited. All undergo endoscopy with biopsy for rapid urease teat, histology, and bacterial culture before treatment. Four to eight weeks after termination of treatment, H. pylori infection status will be examined by the 13C-urea breath test. The CYP2C19 genotype of each participant will be analyzed by the polymerase chain reaction-based restriction fragment length polymerase (PCR-RFLP) method. A computed generated random numbers sequence will be blocked into two subgroups, say A, and B. If the participants did not receive anti-H. pylori therapy previously, they will be invited to enter this study for evaluated the efficacy of these 1st-line regimens. Participant who meet the inclusion criteria and do not have any one of the exclusion criteria will be randomized to receive one of the following regimens: group A- HDDT (rabeprazole 20 mg qid + amoxicillin 750 mg qid for 14 days); group B- BQT ( rabeprazole 20 mg qid + tripotassium dicitrate bismuthate 300 mg qid + metronidazole 250 mg qid + tetracycline 500 mg qid for 10 days); All participants will be asked to complete a questionnaire and to record symptoms and drug consumption daily during the treatment period. Post-treatment, the participants will be followed up at the Outpatients Clinic to investigate patient adherence and adverse effect of treatment.

Eligibility

Minimum age: 20 Years. Maximum age: N/A. Gender(s): Both.

Criteria:

Inclusion criteria: Participants having H. pylori related chronic gastritis with/without peptic ulcers who are aged greater than 20 years old and are willing to received eradication therapy. Exclusion criteria: 1. pregnant or nursing woman 2. serious concomitant illness and malignant tumor of any kind 3. history of hypersensitivity to test drugs 4. serious bleeding during the course of the ulcer 5. previous gastric surgery 6. receiving bismuth salts, PPIs, or antibiotics in the previous month.

Locations and Contacts

Jyh-Chin Yang, M.D.Ph.D., Phone: 02-23123456, Ext: 65055, Email: jcyang47@ntu.edu.tw

National Taiwan University Hospital, Taipei 10002, Taiwan; Recruiting
Jyh-Chin Yang, Phone: 02-23123456, Ext: 65055, Email: jcyang47@ntu.edu.tw
Additional Information

Starting date: July 2015
Last updated: July 14, 2015

Page last updated: August 23, 2015

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