期刊
DIABETES CARE
卷 33, 期 6, 页码 1288-1290出版社
AMER DIABETES ASSOC
DOI: 10.2337/dc09-1807
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资金
- Profil Institut fur Stoffwechselforschung GmbH
OBJECTIVE - To determine the pharmacokinetic and pharmacodynamic properties of an oral insulin (OI) formulation compared with subcutaneously injected regular human insulin (RHI). RESEARCH DESIGN AND METHODS - Ten male patients with type 2 diabetes (means +/- SD; A.I.C 7.0 +/- 1.1%; BMI 28.3 +/- 2.7 kg/m(2)) received either 300 units of insulin combined with 400 mg of delivery agent orally or 15 units RHI subcutaneously under isoglycemic clamp conditions. RESULTS - Maximum insulin concentration was greater and onset of action was faster with OI (C(max) 93 +/- 71 vs. 33 +/- 11 mu U/ml; AUC(GIR)((0-1h)) 173 +/- 86 vs. 27 +/- 32 mg/kg; P < 0.05). Mean insulin concentration and glucose infusion rate returned to baseline within 3 h after OI administration. Relative bioavailability of OI was 7 +/- 4% (1st 2 h). CONCLUSIONS - This proof-of-concept study demonstrated that absorption of OI is feasible under fasting conditions. OI has a fast onset and a short duration of action but also shows a rather high between-subject variability in absorption.
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