• Jennifer Goldman, Christoph Kapitza, Jeremy Pettus, and Tim Heise.
• a School of Pharmacy , MCPHS University , Boston , MA , USA.
• Curr Med Res Opin. 2017 Oct 1; 33 (10): 1821-1831.

AbstractThis article reviews pharmacokinetic (PK) and pharmacodynamic (PD) concepts relating to the pharmacology of basal insulin analogs. Understanding the pharmacology of currently available long-acting basal insulins and the techniques used to assess PK and PD parameters (e.g. the euglycemic clamp method) is important when considering the efficacy and safety of these agents, and can help in understanding the rationale for specific dosing strategies when tailoring therapy for a specific patient. Basal insulins such as insulin glargine 100 units (U)/mL and insulin detemir show improved PK/PD characteristics compared with the intermediate-acting NPH insulin, with a longer duration of action, a more consistent glucose-lowering effect and less prominent concentration peaks. However, more recently developed basal insulins (insulin glargine 300 U/mL, and insulin degludec 100 U/mL and 200 U/mL) have PK/PD profiles closer to the physiologic profile of endogenous basal insulin owing to a more evenly distributed, predictable and prolonged time-action profile that exceeds 24 hours and improved within-patient variability in glucose-lowering effect. The clinical implications and relevance of these PK/PD profiles is explored, including the potential effect of PK/PD parameters on glycemic control and hypoglycemia, and the timing of dosing. The improved PK/PD properties of newer longer-acting basal insulins may translate into clinical benefits for patients with type 1 and type 2 diabetes, such as more consistent insulin levels in the blood over 24 hours, lower intra-patient variability, a reduced risk of nocturnal hypoglycemia, and more flexibility in dosing time, all of which are important to consider when choosing a basal insulin regimen.

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