Abstract
Drug efficacy and response are a function of drug concentration over time. In clinical pharmacokinetic studies, aspects of drug absorption, distribution, metabolism, and excretion over time are assessed. In the early clinical development, the pharmacokinetics of a drug is studied in healthy subjects followed by studies in patient population(s) with the aim to find the relevant dose in the target population(s). Particular pharmacokinetic studies in special populations assess the necessity of a dose adjustment from the planned/established clinical dose for patients.
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Abbreviations
- Ae:
-
Amount of drug excreted unchanged in urine
- ANOVA:
-
Analysis of variance
- AUC:
-
Area under the curve
- BMI:
-
Body mass index
- C12,C24 :
-
Plasma concentration 12 and 24 h after administration
- CI 90 %:
-
90 % confidence Interval
- CLCR :
-
Creatinine clearance
- CLR :
-
Renal clearance
- CLtot/F:
-
Relative total clearance
- Cmax :
-
Maximum concentration
- Cmax :
-
Maximum plasma concentration
- CV:
-
Coefficient of variation
- CYP3A4:
-
Cytochrome P450 3A4
- day –1:
-
Study day prior to day of study medication administration
- fu:
-
Unbound fraction of XYZ123 in plasma
- h:
-
Hour
- INN:
-
International nonproprietary name
- IU:
-
International units
- L:
-
Liter
- Mg:
-
Milligram
- MRT:
-
Mean residence time
- NPH:
-
Neutral protamine Hagedorn (isophane insulin)
- Rac:
-
Accumulation ratio
- RHI:
-
Regular human insulin
- s.c.:
-
Subcutaneous(ly)
- t1/2,λ1 :
-
Main elimination half-life
- t1/2,λz :
-
Terminal elimination half-life
- t12t24 :
-
Time 12 and 24 h after administration
- Tmax :
-
Time to maximum concentration
- tmax :
-
Time to maximum plasma concentration
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Steinstraesser, A., Wesch, R., Frick, A. (2013). Clinical Pharmacokinetic Studies. In: Vogel, H.G., Maas, J., Hock, F.J., Mayer, D. (eds) Drug Discovery and Evaluation: Safety and Pharmacokinetic Assays. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-25240-2_49
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