PMID- 18479175 OWN - NLM STAT- MEDLINE DCOM- 20081014 LR - 20211020 IS - 1173-2563 (Print) IS - 1173-2563 (Linking) VI - 28 IP - 6 DP - 2008 TI - Effect of increasing esomeprazole and pantoprazole doses on acid control in patients with symptoms of gastro-oesophageal reflux disease: a randomized, dose-response study. PG - 333-43 AB - BACKGROUND AND OBJECTIVE: In patients with gastro-oesophageal reflux disease (GORD), dose escalation or drug switching may be considered in those with symptoms that persist despite standard-dose proton pump inhibitor (PPI) therapy. This study set out to assess whether increasing the dosage of oral esomeprazole and pantoprazole improves acid control in GORD patients, and to compare the pharmacodynamic efficacy of esomeprazole and pantoprazole administered at different dosages. METHODS: This was an open-label, randomized, six-way crossover study that included Helicobacter pylori-negative GORD patients (aged 20-60 years) with <30% of time with intragastric pH>4. Patients were treated with oral once-daily esomeprazole 20 mg, 40 mg and 80 mg, and pantoprazole 20 mg, 40 mg and 80 mg, for 5 days. The main outcome measures were time with intragastric pH>4 over 24 hours, median pH over 24 hours and area under the hydrogen ion versus time curve on day 5 for each treatment period. RESULTS: Dose escalation with both PPIs improved acid control. The proportion of time with intragastric pH>4 (day 5) was 46.7% with esomeprazole 20 mg/day, 58.6% with esomeprazole 40 mg/day, and 65.8% with esomeprazole 80 mg/day; the corresponding percentages with pantoprazole were 28.6%, 36.9% and 44.9%, respectively. On a milligram-per-milligram basis, esomeprazole provided greater acid control than pantoprazole (p<0.001). CONCLUSION: Dose escalation with oral esomeprazole and pantoprazole improves acid control in patients with GORD, although esomeprazole provides significantly greater acid control on a milligram-per-milligram basis. FAU - Wilder-Smith, Clive AU - Wilder-Smith C AD - Brain-Gut Research Group, Gastroenterology Group Practice, Berne, Switzerland. cws@ggp.ch FAU - Backlund, Anna AU - Backlund A FAU - Eckerwall, Goran AU - Eckerwall G FAU - Lind, Tore AU - Lind T FAU - Fjellman, Mia AU - Fjellman M FAU - Rohss, Kerstin AU - Rohss K LA - eng PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't PL - New Zealand TA - Clin Drug Investig JT - Clinical drug investigation JID - 9504817 RN - 0 (2-Pyridinylmethylsulfinylbenzimidazoles) RN - 0 (Anti-Ulcer Agents) RN - D8TST4O562 (Pantoprazole) RN - N3PA6559FT (Esomeprazole) SB - IM MH - 2-Pyridinylmethylsulfinylbenzimidazoles/*therapeutic use MH - Adult MH - Anti-Ulcer Agents/*therapeutic use MH - Cross-Over Studies MH - Dose-Response Relationship, Drug MH - Esomeprazole/*therapeutic use MH - Female MH - Gastric Acidity Determination MH - Gastroesophageal Reflux/*drug therapy/metabolism MH - Humans MH - Male MH - Middle Aged MH - Pantoprazole EDAT- 2008/05/16 09:00 MHDA- 2008/10/15 09:00 CRDT- 2008/05/16 09:00 PHST- 2008/05/16 09:00 [pubmed] PHST- 2008/10/15 09:00 [medline] PHST- 2008/05/16 09:00 [entrez] AID - 2861 [pii] AID - 10.2165/00044011-200828060-00001 [doi] PST - ppublish SO - Clin Drug Investig. 2008;28(6):333-43. doi: 10.2165/00044011-200828060-00001.