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Assessment of glycemic response to an oral glucokinase activator in a proof of concept study: application of a semi-mechanistic, integrated glucose-insulin-glucagon model
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Pharmacy, Department of Pharmaceutical Biosciences.
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2013 (English)In: Journal of Pharmacokinetics and Pharmacodynamics, ISSN 1567-567X, E-ISSN 1573-8744, Vol. 40, no 1, 67-80 p.Article in journal (Refereed) Published
Abstract [en]

A proof of concept study was conducted to investigate the safety and tolerability of a novel oral glucokinase activator, LY2599506, during multiple dose administration to healthy volunteers and subjects with Type 2 diabetes mellitus (T2DM). To analyze the study data, a previously established semi-mechanistic integrated glucose-insulin model [1-5] was extended to include characterization of glucagon dynamics. The model captured endogenous glucose and insulin dynamics, including the amplifying effects of glucose on insulin production and of insulin on glucose elimination, as well as the inhibitory influence of glucose and insulin on hepatic glucose production. The hepatic glucose production in the model was increased by glucagon and glucagon production was inhibited by elevated glucose concentrations. The contribution of exogenous factors to glycemic response, such as ingestion of carbohydrates in meals, was also included in the model. The effect of LY2599506 on glucose homeostasis in subjects with T2DM was investigated by linking a one-compartment, pharmacokinetic model to the semi-mechanistic, integrated glucose-insulin-glucagon system. Drug effects were included on pancreatic insulin secretion and hepatic glucose production. The relationships between LY2599506, glucose, insulin, and glucagon concentrations were described quantitatively and consequently, the improved understanding of the drug-response system could be used to support further clinical study planning during drug development, such as dose selection.

Place, publisher, year, edition, pages
2013. Vol. 40, no 1, 67-80 p.
Keyword [en]
Glucokinase activator, LY2599506, Pharmacokinetics, Pharmacodynamics, Semi-mechanistic, Glucose-insulin-glucagon model, Diabetes mellitus
National Category
Medical and Health Sciences
URN: urn:nbn:se:uu:diva-196027DOI: 10.1007/s10928-012-9287-8ISI: 000313955700006OAI: oai:DiVA.org:uu-196027DiVA: diva2:609084
Available from: 2013-03-04 Created: 2013-03-04 Last updated: 2013-03-04Bibliographically approved

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Karlsson, Mats O.
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