Comparison of 12-day Reverse Hybrid Therapy and 12-day Standard Triple Therapy for Helicobacter Pylori Infection (REHYTRI)

Comparison of 12-day Reverse Hybrid Therapy and 12-day Standard Triple Therapy for Helicobacter Pylori Infection

Comparison of 12-day Reverse Hybrid Therapy and 12-day Standard Triple Therapy for Helicobacter Pylori Infection - a Randomized Controlled Trial (REHYTRI Study)

Reverse hybrid therapy is a one-step two-phase treatment for Helicobacter pylori infection with less cost than standard triple therapy. Whether reverse hybrid therapy can replace standard triple therapy as the recommended first-line treatment is unknown. The investigators compared the efficacy of 12-day reverse hybrid therapy and 12-day standard triple therapy in first-line treatment.

For this multicentre, single-blind, and randomized-controlled trial (REHYTRI study), the investigator recruited patients with H pylori infection. Using a computer-generated randomization sequence, the investigator randomly allocated patients to either 12-day reverse hybrid therapy (pantoprazole 40 mg, amoxicillin 1 g, clarithromycin 500 mg and metronidazole 500 mg for the first 7 days, followed by pantoprazole 40 mg, amoxicillin 1 g for another 5 days; with all drugs given twice daily) or a 12-day standard triple therapy (pantoprazole 40 mg, clarithromycin 500 mg, amoxicillin 1 g for 12 days; with all drugs given twice daily) at a 1:1 ratio. Our primary outcome was the eradication rate by intention-to-treat and per-protocol analyses.

pantoprazole 40 mg, amoxicillin 1 g, clarithromycin 500 mg and metronidazole 500 mg for the first 7 days, followed by pantoprazole 40 mg and amoxicillin 1 g for another 5 days; with all drugs given twice daily

pantoprazole 40 mg, clarithromycin 500 mg, and amoxicillin 1 g for 12 days; with all drugs given twice daily

pantoprazole 40 mg b.d., amoxicillin 1 g b.d., clarithromycin 500 mg b.d. and metronidazole 500 mg b.d. for the first 7 days, followed by pantoprazole 40 mg b.d. and amoxicillin 1 g b.d. for another 5 days

Inclusion Criteria: Consecutive H pylori-infected outpatients, at least 20 years of age, with endoscopically proven peptic ulcer diseases or gastritis Exclusion Criteria: previous H pylori-eradication therapy ingestion of antibiotics or bismuth within the prior 4 weeks patients with allergic history to the medications used patients with previous gastric surgery the coexistence of serious concomitant illness (for example, decompensated liver cirrhosis, uremia) pregnant women

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