BACKGROUND: Omeprazole and lansoprazole are used to treat erosive oesophagitis in the respective daily doses of 20 and 30 mg. AIM: To investigate, by meta-analysis, whether treatment with lansoprazole 30 mg increases erosive oesophagitis healing rates over omeprazole 20 mg. METHODS: We searched for randomized, double-blind trials comparing omeprazole 20 mg and lansoprazole 30 mg in endoscopically diagnosed erosive oesophagitis. After assessing for homogeneity, non-heterogeneous trials were combined and pooled healing rates derived. We calculated the relative benefit increase, absolute benefit increase and number needed to treat. RESULTS: Six trials without significant heterogeneity met predetermined inclusion criteria. By per protocol analysis, pooled healing rates for omeprazole 20 mg and lansoprazole 30 mg were, respectively, 74.7% and 77.7% after 4 weeks and 87.0% and 88.7% after 8 weeks. The corresponding figures by intention-to-treat analysis were 70.8% and 72.7% after 4 weeks and 81.8% and 83.3% after 8 weeks. In each analysis the absolute benefit increase for lansoprazole was small and its 95% confidence interval encompassed zero. CONCLUSION: Lansoprazole 30 mg produces healing rates in erosive oesophagitis that are not statistically significantly different to those of omeprazole 20 mg.
BACKGROUND:Omeprazole and lansoprazole are used to treat erosive oesophagitis in the respective daily doses of 20 and 30 mg. AIM: To investigate, by meta-analysis, whether treatment with lansoprazole 30 mg increases erosive oesophagitis healing rates over omeprazole 20 mg. METHODS: We searched for randomized, double-blind trials comparing omeprazole 20 mg and lansoprazole 30 mg in endoscopically diagnosed erosive oesophagitis. After assessing for homogeneity, non-heterogeneous trials were combined and pooled healing rates derived. We calculated the relative benefit increase, absolute benefit increase and number needed to treat. RESULTS: Six trials without significant heterogeneity met predetermined inclusion criteria. By per protocol analysis, pooled healing rates for omeprazole 20 mg and lansoprazole 30 mg were, respectively, 74.7% and 77.7% after 4 weeks and 87.0% and 88.7% after 8 weeks. The corresponding figures by intention-to-treat analysis were 70.8% and 72.7% after 4 weeks and 81.8% and 83.3% after 8 weeks. In each analysis the absolute benefit increase for lansoprazole was small and its 95% confidence interval encompassed zero. CONCLUSION:Lansoprazole 30 mg produces healing rates in erosive oesophagitis that are not statistically significantly different to those of omeprazole 20 mg.
Authors: Alberto Pilotto; Marilisa Franceschi; Gioacchino Leandro; Carlo Scarcelli; Luigi Piero D'Ambrosio; Francesco Paris; Vito Annese; Davide Seripa; Angelo Andriulli; Francesco Di Mario Journal: World J Gastroenterol Date: 2007-09-07 Impact factor: 5.742