IRCT20171223038001N1 IRCT 2018-01-05 Esfahan University of Medical Sciences Eraddication of Helicobacter pylori for quadruple therapy with base of Clarithromycin compared with Levofloxacin Comparison of the efficacy of Levofloxacin and Clarithromycin in quadruple therapy for the eradication of Helicobacter pylori 2017-12-26 anticipated 210 Complete https://irct.ir/trial/28395 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Randomization description: Sampling is consecutive. Patients who referred to the gastroenterologist for upper gastrointestinal symptoms and who have had ulcerative peptic ulcer endoscopy and who have been diagnosed with Helicobacter Pylori infection according to a quick test of urease, according to other criteria for entry and absence of study Then, after explaining how the plan is implemented and receiving written consent, patients are randomly assigned (using a random number table generated by Random Allocation Software) into two groups. 3 Helicobacter pylori infection. Intervention group: Patients with Helicobacter Pylori infection receiving four regimens based on levofloxacin 500 mg once daily for 14 days.. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is I have not decided yet