Recorded: January 2023

This webinar discussed the concept of Kp,uu as a measure of CNS penetration along with the different methodologies available to assess CNS penetration and highlight the complexities of translation of this to human.

Agenda: 

  • Introduction to the brain and BBB
    • Brain physiology, blood flow and fluid compartments;
    • Mechanisms of drug passage across BBB
    • “Free drug theory”
    • Importance of the Kp,uu concept
  • Predicting and measuring drug brain exposure
    • In vitro methods for assessing BBB permeability;
    • In vivo methods to measure brain exposure;
    • Methods to measure unbound brain concentration – current findings and challenges;
  • Pharmacokinetics of brain exposure and translation to humans
    • In vitro to in vivo extrapolation of Kp,uu to human – current findings and challenges
    • Existing cell-based models representing BBB
    • CNS penetration of drugs across different species