Technosphere insulin (TI), an inhaled insulin with a fast onset of action, provides a novel option for the control of prandial glucose. A euglycemic glucose clamp study was performed to compare the effects of TI and regular human insulin (RHI) on the induced glucose infusion rate (GIR) in healthy volunteers. Generation of a dose-response relationship between insulin dose and effect (expressed as AUC of GIR) was not possible from the clinical data directly. The GIR recording time was too short to capture the full effect and higher doses were not tested. Thus, a pharmacokinetic-GIR model was developed to simulate GIR for a sufficient time window of 20 h and for higher doses. A dose-response model was then generated from the simulated GIR profiles. The resulting model provides an ED for TI that is 5-fold higher than for RHI, a ratio that can be used as conversion factor for equivalent doses of RHI and TI.
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| http://dx.doi.org/10.1002/psp4.12189 | DOI Listing |
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