A pharmacometric case study regarding the sensitivity of structural model parameter estimation to error in patient reported dosing times

Verfasser / Beitragende:
[Jonathan Knights, Shashank Rohatagi]
Ort, Verlag, Jahr:
2015
Enthalten in:
Journal of Pharmacokinetics and Pharmacodynamics, 42/6(2015-12-01), 627-637
Format:
Artikel (online)
ID: 605533822
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024 7 0 |a 10.1007/s10928-015-9428-y  |2 doi 
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245 0 2 |a A pharmacometric case study regarding the sensitivity of structural model parameter estimation to error in patient reported dosing times  |h [Elektronische Daten]  |c [Jonathan Knights, Shashank Rohatagi] 
520 3 |a Although there is a body of literature focused on minimizing the effect of dosing inaccuracies on pharmacokinetic (PK) parameter estimation, most of the work centers on missing doses. No attempt has been made to specifically characterize the effect of error in reported dosing times. Additionally, existing work has largely dealt with cases in which the compound of interest is dosed at an interval no less than its terminal half-life. This work provides a case study investigating how error in patient reported dosing times might affect the accuracy of structural model parameter estimation under sparse sampling conditions when the dosing interval is less than the terminal half-life of the compound, and the underlying kinetics are monoexponential. Additional effects due to noncompliance with dosing events are not explored and it is assumed that the structural model and reasonable initial estimates of the model parameters are known. Under the conditions of our simulations, with structural model CV% ranging from ~20 to 60%, parameter estimation inaccuracy derived from error in reported dosing times was largely controlled around 10% on average. Given that no observed dosing was included in the design and sparse sampling was utilized, we believe these error results represent a practical ceiling given the variability and parameter estimates for the one-compartment model. The findings suggest additional investigations may be of interest and are noteworthy given the inability of current PK software platforms to accommodate error in dosing times. 
540 |a Springer Science+Business Media New York, 2015 
690 7 |a Population pharmacokinetics  |2 nationallicence 
690 7 |a Simulation  |2 nationallicence 
690 7 |a Dosing inaccuracies  |2 nationallicence 
690 7 |a Reporting error  |2 nationallicence 
690 7 |a Parameter Estimation  |2 nationallicence 
700 1 |a Knights  |D Jonathan  |u Otsuka Pharmaceutical Development & Commercialization, Inc., 508 Carnegie Center Blvd. Suite 300, 08540, Princeton, NJ, USA  |4 aut 
700 1 |a Rohatagi  |D Shashank  |u Otsuka Pharmaceutical Development & Commercialization, Inc., 508 Carnegie Center Blvd. Suite 300, 08540, Princeton, NJ, USA  |4 aut 
773 0 |t Journal of Pharmacokinetics and Pharmacodynamics  |d Springer US; http://www.springer-ny.com  |g 42/6(2015-12-01), 627-637  |x 1567-567X  |q 42:6<627  |1 2015  |2 42  |o 10928 
856 4 0 |u https://doi.org/10.1007/s10928-015-9428-y  |q text/html  |z Onlinezugriff via DOI 
898 |a BK010053  |b XK010053  |c XK010000 
900 7 |a Metadata rights reserved  |b Springer special CC-BY-NC licence  |2 nationallicence 
908 |D 1  |a research-article  |2 jats 
949 |B NATIONALLICENCE  |F NATIONALLICENCE  |b NL-springer 
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950 |B NATIONALLICENCE  |P 700  |E 1-  |a Knights  |D Jonathan  |u Otsuka Pharmaceutical Development & Commercialization, Inc., 508 Carnegie Center Blvd. Suite 300, 08540, Princeton, NJ, USA  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Rohatagi  |D Shashank  |u Otsuka Pharmaceutical Development & Commercialization, Inc., 508 Carnegie Center Blvd. Suite 300, 08540, Princeton, NJ, USA  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Journal of Pharmacokinetics and Pharmacodynamics  |d Springer US; http://www.springer-ny.com  |g 42/6(2015-12-01), 627-637  |x 1567-567X  |q 42:6<627  |1 2015  |2 42  |o 10928