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Title: A randomized comparative study of esomeprazole 40 mg versus pantoprazole 40 mg for healing erosive oesophagitis: the EXPO study.
Author: Labenz J, Armstrong D, Lauritsen K, Katelaris P, Schmidt S, Schütze K, Wallner G, Juergens H, Preiksaitis H, Keeling N, Nauclér E, Eklund S, Expo Study Investigators.
Journal: Aliment Pharmacol Ther; 2005 Mar 15; 21(6):739-46. PubMed ID: 15771760.
Abstract:
AIM: To assess the efficacy of the 8-week therapy with esomeprazole 40 mg vs. pantoprazole 40 mg for healing erosive oesophagitis (EE) as part of a management study. METHODS: Patients had a history of gastro-oesophageal reflux disease symptoms (> or =6 months) and had suffered heartburn on at least 4 of the 7 days preceding enrollment. Endoscopies were performed to grade EE severity using the Los Angeles (LA) classification system at baseline, 4 and 8 weeks (if unhealed at 4 weeks). Heartburn severity was recorded by patients on diary cards. The primary end point was healing of EE by week 8 of treatment. RESULTS: Of 3170 patients randomized, the intent-to-treat population consisted of 3151 patients (63% male, mean age: 50.6 years, 27% Helicobacter pylori-positive). Esomeprazole 40 mg healed a significantly greater proportion of EE patients than pantoprazole 40 mg at both 4 weeks (life table estimates: esomeprazole 81%, pantoprazole 75%, P < 0.001) and 8 weeks (life table estimates: esomeprazole 96%, pantoprazole 92%, P < 0.001). The median time to reach sustained heartburn resolution was 6 days in patients receiving esomeprazole and 8 days with pantoprazole (P < 0.001). CONCLUSION: Esomeprazole 40 mg is more effective than pantoprazole 40 mg for healing EE and providing resolution of associated heartburn.

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