CNS drug design: balancing physicochemical properties for optimal brain exposure

Area of Science:

• Neuroscience
• Medicinal Chemistry
• Pharmacology

Background:

• The human brain possesses a robust protective system against external toxins.
• Developing drugs that penetrate this system to reach therapeutic targets is a significant challenge in CNS drug discovery.

Purpose of the Study:

• To systematically review physicochemical properties crucial for optimal brain exposure.
• To define attributes of successful CNS drugs and drug candidates.
• To explore the interplay between physicochemical and pharmacokinetic parameters in CNS drug design.

Main Methods:

• Systematic review of existing literature on CNS drug properties.
• Emphasis on physicochemical and pharmacokinetic parameters.
• Summary of modern CNS pharmacokinetic concepts and methods.

Main Results:

• Physicochemical properties are critical for achieving therapeutic concentrations in the brain.
• Understanding these properties aids in designing successful CNS drug candidates.
• Interplay between properties influences medicinal chemistry strategies.

Conclusions:

• Defining optimal physicochemical and pharmacokinetic profiles is key for CNS drug development.
• This review provides a framework for medicinal chemists to design molecules with enhanced brain penetration.