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.
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
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
800
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
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.)
The University of Hong Kong, Queen Mary Hospital
Hong Kong SAR, Hong Kong
H pylori eradication
Successful H pylori eradication documented by urea breath test after first and second line treatments. Cross over if patients failed first line treatment
Time frame: 8 weeks after treatment
Number of Participants with Adverse Events as a Measure of Safety and Tolerability
Assessed adverse effects and compliance by standard questionnaire upon 10 weeks outpatient follow-up
Time frame: 10 weeks outpatient follow-up
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