Effect of ranitidine and amoxicillin plus metronidazole on the eradication of Helicobacter pylori and the recurrence of duodenal ulcer
Open accessAbstract
BACKGROUND: Persistent infection with Helicobacter pylori is associated with the recurrence of duodenal ulcer. Whether the efficacy of bismuth therapy in reducing the rate of recurrence of duodenal ulcer is due to its antimicrobial effects on H. pylori or to a direct protective action on the mucosa is still a matter of debate. METHODS: To study the effect of the eradication of H. pylori on the recurrence of duodenal ulcer, we treated 104 patients with H. pylori infection and recurrent duodenal ulcer with either amoxicillin (750 mg three times daily) plus metronidazole (500 mg three times daily) or identical-appearing placebos, given orally for 12 days. All patients also received ranitidine (300 mg each night) for 6 or 10 weeks. Endoscopy was performed before treatment and periodically during follow-up for up to 12 months after healing. RESULTS: Among the 52 patients given antibiotics, H. pylori was eradicated in 46, as compared with 1 of the 52 given placebo (89 percent vs. 2 percent, P < 0.001). After six weeks, the ulcers were healed in 48 patients given antibiotics and 39 given placebo (92 percent vs. 75 percent, P = 0.011). Side effects, mainly diarrhea, occurred in 15 percent of the patients given antibiotics. Among the patients followed up for 12 months, duodenal ulcers recurred in 4 of 50 patients given antibiotics and 42 of 49 given placebo (8 percent vs. 86 percent, P < 0.001). Ulcers recurred in 1 of 46 patients in whom H. pylori had been eradicated, as compared with 45 of 53 in whom H. pylori persisted (2 percent vs. 85 percent, P < 0.001). CONCLUSIONS: In patients with recurrent duodenal ulcer, eradication of H. pylori by a regimen that does not have any direct action on the mucosa is followed by a marked reduction in the rate of recurrence, suggesting a causal role for H. pylori in recurrent duodenal ulcer.
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Antibiotics alone, without H2 blockers or PPIs, could cure ulcers.
“A final piece of evidence was demonstration that antibiotics alone, without H2 blockers or PPIs, could cure ulcers [17–20].”
From What would it take to prove that a chronic infection is a causal agent in Alzheimer’s disease? (2025) · cites this paper as [18]
The Methods (p. 1) state that all patients received ranitidine, an H2 blocker, whether they received antibiotics or placebo. The Treatment Period (p. 2) reports better ulcer healing with antibiotics plus ranitidine, but this trial did not demonstrate that antibiotics alone could cure ulcers. (LLM, conf=0.89)
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Cure of duodenal ulcer associated with eradication of Helicobacter pylori
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Pathogenesis of <i>Helicobacter pylori</i> Infection
Kusters, J. G., van Vliet, A. H. M., & Kuipers, E. J. (2006) · Clinical Microbiology Reviews · doi:10.1128/cmr.00054-05 · Cited by 2,526 · see citing works
<i>Helicobacter pylori</i> stimulates pepsinogen secretion from isolated human peptic cells
Lorente, S., Doiz, O., Serrano, M. T., Castillo, J., & Lanas, A. (2002) · Gut · doi:10.1136/gut.50.1.13 · Cited by 60 · see citing works
What would it take to prove that a chronic infection is a causal agent in Alzheimer’s disease?
Brutkiewicz, R. R., Cao, W., Morgan, D., Reis, R. S. D., Suryadevara, V., Willette, A. A., Willette, S. A., Wyatt-Johnson, S. K., & Duggan, M. R. (2025) · Trends in Neurosciences · doi:10.1016/j.tins.2025.05.009 · Cited by 3 · see citing works
- Authors
- Hentschel, E., Brandstatter, G., Dragosics, B., Hirschl, A. M., Nemec, H., Schutze, K., Taufer, M., & Wurzer, H.
- Affiliations
- Hanusch Hospital (AT)
- University of Vienna (AT)
- University of Graz (AT)
- ORCID
- Wurzer, Herbert
- Venue
- New England Journal of Medicine
- Publisher
- Massachusetts Medical Society
- Published
- 1993-02-04
- Volume
- 328
- Issue
- 5
- Pages
- 308-312
- ISSN
- 0028-4793 (ISSN-L)
- 1533-4406
- OpenAlex
- W2329240046
- Cited by
- 708
- References
- 1
- Citations by year
- 2025: 4 · 2024: 3 · 2023: 3 · 2022: 5 · 2021: 6 · 2020: 2 · 2019: 7 · 2018: 3 · 2017: 8 · 2016: 8 · 2015: 12 · 2014: 12 · 2013: 9 · 2012: 9
- FWCI
- 99.57
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- New England Journal of Medicine (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Health Sciences › Medicine › Surgery › Helicobacter pylori-related gastroenterology studies
- Health Sciences › Medicine › Gastroenterology › Gastrointestinal Bleeding Diagnosis and Treatment
- Health Sciences › Medicine › Hepatology › Hepatitis C virus research
- Keywords
- Helicobacter pylori, duodenal ulcer, ulcer recurrence, Helicobacter pylori eradication, ranitidine, amoxicillin, metronidazole, triple therapy, Helicobacter pylori infection, ulcer healing
- MeSH terms
- Adult, Aged, Amoxicillin, Drug Administration Schedule, Drug Therapy, Combination, Duodenal Ulcer, Female, Follow-Up Studies, Gastric Mucosa, Humans, Intestinal Mucosa, Male, Metronidazole, Middle Aged, Prospective Studies, Ranitidine, Recurrence, Helicobacter pylori, Helicobacter Infections
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