Antimicrobial Susceptibility Testing Guided Therapy Versus Empirical Therapy for the First-line Helicobacter Pylori Eradication.
Helicobacter Pylori Infection, Antimicrobial Susceptibility Testing
About this trial
This is an interventional treatment trial for Helicobacter Pylori Infection focused on measuring Helicobacter Pylori Infection, Antimicrobial Susceptibility testing(AST)
Eligibility Criteria
Inclusion Criteria:
- Patients aged 18-70 with H. pylori infection.
Exclusion Criteria:
- Patients with previous H. pylori eradication therapy;
- Patients unable or unwilling to receive gastroscopy;
- Patients treated with H2-receptor antagonist, PPI, bismuth and antibiotics in the previous 4 weeks;
- Patients with gastrectomy, acute GI bleeding and advanced gastric cancer;
- Patients with known or suspected allergy to study medications;
- Currently pregnant or lactating;
- Inability to provide informed consent and other situations that could interfere with the examination or therapeutic protocol.
Sites / Locations
- Xiuli Zuo
Arms of the Study
Arm 1
Arm 2
Arm 3
Arm 4
Experimental
Experimental
Other
Other
Antimicrobial susceptibility testing guided therapy
Empirical tailored therapy
Salvage therapy for negative culture
Salvage therapy for failed eradication
Patients in this group will receive a 10-day triple therapy for the Helicobacter pylori eradication. The regimen contains one proton pump inhibitor and two sensitive antibiotics determined by AST. The susceptibility of amoxicillin, clarithromycin, metronidazole, tinidazole, levofloxacin, furazolidone and tetracycline will be evaluated. Drugs: 1.one proton pump inhibitor: lansoprazole 30mg bid for 10d 2.two sensitive antibiotics: amoxicillin 1000mg bid for 10d, clarithromycin 500mg bid for 10d, metronidazole 500mg tid for 10d, tinidazole 500mg tid for 10d, levofloxacin 500mg qd for 10d, furazolidone 100mg bid for 10d, tetracycline 750mg bid for 10d.
Patients in this group will receive a 14-day bismuth-based quadruple therapy for the H.pylori eradication. The regimen contains one PPI, Colloidal Bismuth Pectin and two antibiotics based on personal medication history. If the patient has taken clarithromycin, roxithromycin and azithromycin for less than 2 weeks before, he will be treated with amoxicillin and clarithromycin. Otherwise, he will be treated with amoxicillin and furazolidone. Drugs: 1.one proton pump inhibitor: lansoprazole 30mg bid for 14d 2.Colloidal Bismuth Pectin 200mg bid for 14d 3.two antibiotics based on personal medication history: amoxicillin 1000mg bid and clarithromycin 500mg bid for 14d, amoxicillin 1000mg bid and furazolidone 100mg bid for 14d.
When the culture results are negative, patients will receive 14-day empirical tailored therapy based on personal medication history. Drugs: 1.one proton pump inhibitor: lansoprazole 30mg bid for 14d 2.Colloidal Bismuth Pectin 200mg bid for 14d 3.two antibiotics based on personal medication history: amoxicillin 1000mg bid and clarithromycin 500mg bid for 14d, amoxicillin 1000mg bid and furazolidone 100mg bid for 14d.
If patients failed with AST guided eradication therapy or empirical therapy, patients will be treated with another 14-day bismuth-based quadruple therapy. Drugs: 1.one proton pump inhibitor: lansoprazole 30mg bid for 14d 2.Colloidal Bismuth Pectin 200mg bid for 14d 3.two antibiotics for rescue therapy: tetracycline 750mg bid and furazolidone 100mg bid for 14d.