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The pharmacodynamics, safety and pharmacokinetics of single doses of the motilin agonist, camicinal, in type 1 diabetes mellitus with slow gastric emptying
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences, Gastroenterology/Hepatology.
Univ Leuven, Louvain, Belgium..
GlaxoSmithKline, Res Triangle Pk, NC USA..
GlaxoSmithKline, Stevenage, Herts, England..
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2016 (English)In: British Journal of Pharmacology, ISSN 0007-1188, E-ISSN 1476-5381, Vol. 173, no 11, 1768-1777 p.Article in journal (Refereed) PublishedText
Abstract [en]

BACKGROUND AND PURPOSE Here we have investigated the pharmacokinetics, pharmacodynamics and safety of single doses of camicinal in type 1 diabetes mellitus (T1DM) patients with a history of slow gastric emptying with symptoms consistent with gastroparesis. EXPERIMENTAL APPROACH In a randomized, double-blind, placebo-controlled, incomplete block, three-period, two-centre crossover study, patients received oral administration of placebo and two of the three possible doses of camicinal (25, 50 or 125 mg). Gastric emptying (C-13-octanoic acid breath test), pharmacokinetics and safety were primary outcomes. KEY RESULTS Nine of the 10 patients enrolled completed the study. Gastric half-emptying time decreased by -95 min (95% CI: -156.8, -34.2) after a single dose of camicinal 125 mg compared with placebo (52 vs. 147 min, P < 0.05), representing a 65% improvement. A decrease of the gastric half-emptying time compared with placebo (approximately 39 min) was observed with camicinal 25 and 50 mg, representing a 27% reduction for both doses (not statistically significant). A positive exposure-response relationship was demonstrated across all doses. The effects of camicinal on gastric half-emptying time were not influenced by fasting glucose levels. Single doses up to 125 mg were well tolerated. Camicinal was well absorbed, exhibiting linear and approximately dose-proportional pharmacokinetic characteristics and a clear exposure-response relationship with gastric emptying. CONCLUSIONS AND IMPLICATIONS Camicinal significantly accelerated gastric emptying of solids in T1DM patients following administration of a single oral dose. Camicinal was well tolerated and exhibited similar pharmacokinetic characteristics in diabetic patients to those previously reported in healthy volunteers.

Place, publisher, year, edition, pages
2016. Vol. 173, no 11, 1768-1777 p.
National Category
Pharmacology and Toxicology
URN: urn:nbn:se:uu:diva-298857DOI: 10.1111/bph.13475ISI: 000377252100005PubMedID: 26924243OAI: oai:DiVA.org:uu-298857DiVA: diva2:948337
GlaxoSmithKline (GSK), MOT111809 2008-008175-34
Available from: 2016-07-11 Created: 2016-07-11 Last updated: 2016-07-11Bibliographically approved

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