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A single dose of intravenous esomeprazole decreases gastric secretion in healthy volunteers.

Author(s): Nichita C, Abdou AE, Maerten P, Herranz M, Mouret N, Thalmann C, Michetti PF, Dorta G

Affiliation(s): Department of Gastroenterology and Hepatology at the University Hospital in Lausanne, Switzerland. cristina.nichita@chuv.ch

Publication date & source: 2009-11-15, Aliment Pharmacol Ther., 30(10):1022-9. Epub 2009 Aug 21.

Publication type: Randomized Controlled Trial; Research Support, Non-U.S. Gov't

BACKGROUND: Data suggest that esomeprazole decreases gastric secretion. AIMS: To assess the effect of a single i.v. esomeprazole dose on gastric secretion volume 3 h after drug administration, as a primary endpoint, and to evaluate, as secondary endpoints, the reduction 1 and 5 h after dosing; time when the gastric pH was <2.5 and esomeprazole's safety. METHODS: In all, 23 healthy Helicobacter pylori-negative volunteers (10 men, 13 women, mean age 28.2 +/- 6) participated in this single-centre, randomized, double-blind, placebo-controlled, 2-way, single-dose cross-over study. In different sessions, volunteers received i.v. either esomeprazole 40 mg or placebo. An inserted double-lumen nasogastric tube perfused and aspirated gastric liquid. Mechanical fractioned aspiration measured secretion volume; aliquot spectrophotometry assessed gastric secretion volume lost to the duodenum. RESULTS: Three hours post-i.v. esomeprazole, average gastric secretion decreased by 77.6% (vs. baseline) compared to placebo. Values 1 and 5 h after dosing were 73.5% and 74.5%. Five hours after esomeprazole, the gastric pH was <2.5 3.9% of the time and 73.3% after placebo (P < 0.002). Esomeprazole was well-tolerated. No serious adverse events occurred. CONCLUSIONS: Intravenous esomeprazole decreases gastric secretions. The potential clinical impact in averting bronchoaspiration during anaesthesia induction and in intensive care patients should be investigated in further studies.

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