Bismuth-based triple therapy with bismuth subcitrate, metronidazole and tetracycline in the eradication of <I>Helicobacter pylori</I>: A randomised, placebo controlled, double-blind study, Pulsus Group Inc
CANADIAN JOURNAL OF GASTROENTEROLOGY & HEPATOLOGY
The Canadian Association of Gastroenterology (CAG) Canadian Association for the Study of the Liver (CASL)

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Original Article July/August 2000, Volume 14 Issue 7: 599-602
 

Bismuth-based triple therapy with bismuth subcitrate, metronidazole and tetracycline in the eradication of Helicobacter pylori: A randomised, placebo controlled, double-blind study

SV van Zanten | A Farley | N Marcon | R Lahaie | A Archambault | R Hunt | R Bailey | D Owen | J Spenard | A Stiglick | N Aimola | P Colin

OBJECTIVE: To determine the rate of Helicobacter pylori eradication following bismuth-based triple therapy with colloidal bismuth subcitrate, tetracycline hydrochloride and metronidazole.
PATIENTS AND METHODS: One hundred and eleven patients were randomly assigned, in a two to one ratio, to colloidal bismuth subcitrate 120 mg qid plus metronidazole 250 mg qid plus tetracycline 500 mg qid (Gastrostat), or matching placebo tablets and capsules for 14 days. Presence or absence of H pylori was documented by histology at entry and at least 28 days after treatment. Patients had dyspeptic symptoms with or without a history of peptic ulcer. Patients with any previous attempt(s) at eradication of H pylori, who used bismuth, antibiotics, H2 receptor antagonists or proton pump inhibitors in the previous four weeks were excluded.
RESULTS: Fifty-three of 59 (90%) patients on bismuth-based treatment and only one of 35 (3%) on placebo achieved eradication by per protocol analysis. Fifty-three of 65 (82%) patients on bismuth-based treatment achieved eradication, while only two of 34 (5%) achieved eradication on placebo by intention to treat analysis. Eradication rates for bismuth-based treatment across sites ranged from 83% to 100%. Only two patients in the bismuth-based treatment group (4%) and one in the placebo group (3%) discontinued treatment because of adverse events.
CONCLUSIONS: Colloidal bismuth subcitrate plus metronidazole plus tetracycline, given in the doses studied for 14 days, is safe and highly effective against H pylori infection and would be appropriate as a first-line therapy for eradication.


Bismuth | Helicobacter pylori | Metronidazole | Tetracycline | Triple-therapy
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