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  • Title: One-week therapy with pantoprazole versus ranitidine bismuth citrate plus two antibiotics for Helicobacter pylori eradication.
    Author: Gisbert JP, Carpio D, Marcos S, Gisbert JL, García Grávalos R, Pajares JM.
    Journal: Eur J Gastroenterol Hepatol; 2000 May; 12(5):489-95. PubMed ID: 10833090.
    Abstract:
    AIM: A combination of omeprazole plus amoxycillin (Amo) and clarithromycin (CIa) for 7 days has been studied extensively. However, the role of other proton pump inhibitors, such as pantoprazole (Pan), in this therapy is not well known. On the other hand, ranitidine bismuth citrate (RBC) also seems to be effective when combined with Amo and CIa. Our aim was to evaluate and to compare these two novel short-term triple therapies (Pan+Amo+Cla and RBC+Amo+Cla) for treatment of Helicobacter pylori. METHODS: In a randomized clinical trial 150 consecutive patients (38 with duodenal ulcer, 112 with non-ulcer dyspepsia) infected by H. pylori were studied prospectively. Exclusion criteria were: previous H. pylori eradication therapy, gastroerosive drug use, gastric surgery, and associated diseases. One of two regimens was given for 7 days: Pan (40 mg b.i.d.), Amo (1 g b.i.d.), Cla (500 mg b.i.d.) (group Pan+Amo+Cla, n = 75); or RBC (400 mg b.i.d.), Amo (1 g b.i.d.), Cla (500 mg b.i.d.) (group RBC+Amo+Cla, n = 75). All drugs were administered together after meals. Compliance was evaluated by return tablet count. Data were analysed by univariate (chi2) and multivariate (multiple logistic regression) analysis. Eradication was defined as a negative 13C-urea breath test 1 month after completing therapy. RESULTS: The distribution of studied variables (age, gender, smoking, duodenal ulcer/non-ulcer dyspepsia) was similar in both therapy groups. Per-protocol eradication was achieved in 48/71 (68%) in group Pan+Amo+Cla, and in 61/70 (87%) in group RBC+Amo+Cla (P= 0.01). Intention-to-treat (ITT) eradication was achieved in, respectively, 48/ 75 (64%) and in 61/75 (81%) (P= 0.03). The RBC+ Amo+Cla regimen was more effective than Pan+Amo+Cla in non-ulcer dyspepsia patients (ITT, 84% vs 58%; P = 0.005), but statistically significant differences were not demonstrated in duodenal ulcer patients (72% vs 80%). In the multivariate analysis the odds ratio for the effect of the type of therapy on H. pylori eradication in patients with non-ulcer dyspepsia was 3.8 (95% Cl, 1.6-9.3; P = 0.003). No relevant adverse effects were reported with any regimen. CONCLUSION: A RBC+Amo+Cla regimen for only 1 week is a promising therapy for H. pylori infection, due to its high efficacy, simple posology, and excellent tolerability. Combination of Pan with Amo and Cla, although effective in duodenal ulcer patients, but in non-ulcer dyspepsia has not achieved the favourable results previously reported with other proton pump inhibitors.
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