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JOURNAL ARTICLE
META-ANALYSIS
RESEARCH SUPPORT, NON-U.S. GOV'T
A Pooled Analysis of Clinical Pharmacology Trials Investigating the Pharmacokinetic and Pharmacodynamic Characteristics of Fast-Acting Insulin Aspart in Adults with Type 1 Diabetes.
Clinical Pharmacokinetics 2017 May
BACKGROUND: Fast-acting insulin aspart (faster aspart) is insulin aspart (IAsp) in a new formulation aiming to mimic the fast endogenous prandial insulin release more closely than currently available insulin products. In a post hoc analysis of pooled data from six clinical pharmacology trials, the pharmacological characteristics of faster aspart and IAsp were compared.
METHODS: The analysis included 218 adult subjects with type 1 diabetes from six randomised, double-blind, crossover trials in the faster aspart clinical development programme. Subjects received subcutaneous dosing (0.2 U/kg) of faster aspart and IAsp. In three trials, a 12-h euglycaemic clamp was performed (target 5.5 mmol/L; 100 mg/dL) to assess pharmacodynamics.
RESULTS: The pharmacokinetic and pharmacodynamic profiles were left-shifted for faster aspart versus IAsp. Onset of appearance occurred 4.9 min earlier (95% confidence interval [CI] faster aspart-IAsp: [-5.3 to -4.4], p < 0.001), early exposure (AUCIAsp,0-30min ) was two times greater (estimated ratio faster aspart/IAsp 2.01 [1.87-2.17], p < 0.001) and offset of exposure (t Late 50% Cmax ) occurred 12.2 min earlier [-17.9 to -6.5] (p < 0.001) for faster aspart versus IAsp. Accordingly, onset of action occurred 4.9 min earlier [-6.9 to -3.0] (p < 0.001), early glucose-lowering effect (AUCGIR,0-30min ) was 74% greater (1.74 [1.47-2.10], p < 0.001) and offset of glucose-lowering effect (t Late 50% GIRmax ) occurred 14.3 min earlier [-22.1 to -6.5] (p < 0.001) for faster aspart versus IAsp. Total exposure and total glucose-lowering effect did not differ significantly between treatments.
CONCLUSIONS: Faster aspart has the potential to better mimic the physiologic prandial insulin secretion and thereby to improve postprandial glucose control compared with IAsp. ClinicalTrials.gov identifiers: NCT02035371, NCT01924637, NCT02131246, NCT02033239, NCT02003677, NCT01618188.
METHODS: The analysis included 218 adult subjects with type 1 diabetes from six randomised, double-blind, crossover trials in the faster aspart clinical development programme. Subjects received subcutaneous dosing (0.2 U/kg) of faster aspart and IAsp. In three trials, a 12-h euglycaemic clamp was performed (target 5.5 mmol/L; 100 mg/dL) to assess pharmacodynamics.
RESULTS: The pharmacokinetic and pharmacodynamic profiles were left-shifted for faster aspart versus IAsp. Onset of appearance occurred 4.9 min earlier (95% confidence interval [CI] faster aspart-IAsp: [-5.3 to -4.4], p < 0.001), early exposure (AUCIAsp,0-30min ) was two times greater (estimated ratio faster aspart/IAsp 2.01 [1.87-2.17], p < 0.001) and offset of exposure (t Late 50% Cmax ) occurred 12.2 min earlier [-17.9 to -6.5] (p < 0.001) for faster aspart versus IAsp. Accordingly, onset of action occurred 4.9 min earlier [-6.9 to -3.0] (p < 0.001), early glucose-lowering effect (AUCGIR,0-30min ) was 74% greater (1.74 [1.47-2.10], p < 0.001) and offset of glucose-lowering effect (t Late 50% GIRmax ) occurred 14.3 min earlier [-22.1 to -6.5] (p < 0.001) for faster aspart versus IAsp. Total exposure and total glucose-lowering effect did not differ significantly between treatments.
CONCLUSIONS: Faster aspart has the potential to better mimic the physiologic prandial insulin secretion and thereby to improve postprandial glucose control compared with IAsp. ClinicalTrials.gov identifiers: NCT02035371, NCT01924637, NCT02131246, NCT02033239, NCT02003677, NCT01618188.
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