This randomized controlled clinical trial will compare the eradication efficacy of bismuth quadruple therapy containing clarithromycin+metronidazole, clarithromycin+levofloxacin, or metronidazole+levofloxacin for Helicobacter pylori first-line treatment in penicillin-allergic patients. The completion of this trial will expand new therapy for the treatment of Helicobacter pylori, which can not only ensure clinical efficacy, but also reduce the use of antibiotics.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
504
Zhongshan Hospital, Fudan University
Shanghai, Shanghai Municipality, China
RECRUITINGEradication rate of Helicobacter pylori
Eradication of Helicobacter pylori was defined as negative result of urea breath test (\<4‰ cut-off value).
Time frame: At least 4 weeks after completion of therapy
Eradication rate of Helicobacter pylori resistant strains
Eradication of Helicobacter pylori was defined as negative result of urea breath test (\<4‰ cut-off value). The antibiotic resistant strains were assessed using the E test method.
Time frame: At least 4 weeks after completion of therapy
Eradication rate of Helicobacter pylori susceptible strains
Eradication of Helicobacter pylori was defined as negative result of urea breath test (\<4‰ cut-off value). The antibiotic susceptible strains were assessed using the E test method.
Time frame: At least 4 weeks after completion of therapy
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0.5g bid
0.5g qd