DMPK > Asan Preclinical Evaluation center for cancer therapeutiX

Assay systems for In vitro ADME profiling and PK studies using animal models

Mouse / Rat

Analysis of drug concentrations in plasma or tissues after animal model development

Rabbit / Dog

Sample analysis (e.g., plasma) and calculation of pharmacokinetic (PK) parameters

Service

  • Bioanalysis
    • Sample preparation and development of quantitative analysis methods using LC-MS/MS
  • In vitro ADME assay
    • Parallel artificial membrane permeability assay (PAMPA)
    • Caco-2 permeability assay
    • Protein binding assay
    • Microsomal stability
    • Plasma stability
    • CYP inhibition study
    • In vitro metabolite identification (Met ID)
  • In vivo PK study
    • Rodent (mouse/rat) full PK study
    • Analysis of PK samples (e.g., plasma) from large animals and calculation of pharmacokinetic (PK) parameters
    • Tissue distribution studies
    • N-in-one PK study

In vivo PK study

대사안정성 시험 (Microsomal stability)

Service example

  • PK studies in New Zealand White Rabbits

Design

- Collection of blood from the vein of New Zealand White Rabbits at predefined time points following single-dose administration

- The collected blood is transferred into sodium heparin tubes, followed by centrifugation at 4°C, 3000 rpm for 10 minutes to isolate plasma.

- Pharmacokinetic characteristics of the drug for animal models were determined based on the plasma drug concentration-time curve

Result

[Blood sampling time points]

[Analysis result]

Service example

  • PK studies of oral administration in SD rat

Design

- At each time point, 0.5 mL of blood was collected from the tail vein of male and female SD rats

- The collected blood was transferred into sodium heparin tubes and centrifuged at 3,000 rpm for 10 minutes at 4°C to separate plasma.

- Pharmacokinetic characteristics of the drug for animal models were determined based on the plasma drug concentration-time curve

Result

 

[Blood sampling time points]

[Analysis result]