Therapeutic implications of target residence time

Area of Science:

• Pharmacology
• Biochemistry
• Drug Discovery

Background:

• Traditionally, drug potency is prioritized over target residence time (RT) for therapeutic utility.
• Emerging evidence highlights RT as a critical factor, sometimes surpassing potency in determining in vivo drug effectiveness.
• Understanding ligand-target interactions is crucial for optimizing drug development.

Purpose of the Study:

• To discuss advancements in assessing and manipulating ligand-target residence time (RT).
• To explore the therapeutic implications of RT in drug design.
• To highlight novel techniques and ligand types influencing RT.

Main Methods:

• Development of advanced techniques for measuring ligand-target kinetics.
• Analysis of allosteric modulators and their binding mechanisms.
• Investigation of binding to cryptic pockets on G protein-coupled receptors (GPCRs).

Main Results:

• New methodologies enable more accurate assessment of ligand-target residence time (RT).
• Allosteric modulators and specific binding mechanisms (e.g., to cryptic pockets) offer new ways to modulate RT.
• Optimized RT can significantly enhance therapeutic value.

Conclusions:

• Ligand-target residence time (RT) is a crucial determinant of drug efficacy, potentially more so than potency.
• Advances in kinetic assessment and understanding of ligand-target interactions, including allosteric modulation, provide new avenues for drug optimization.
• Manipulating RT offers significant potential for increasing the therapeutic value of drugs.