Youve probably heard the stories from your buddies: You fill out some personal info, send a couple of messages back and forth with a prescriber, and bammedication secured, no primary doc visit required
When a second drug displaces a primary drug from its binding sites on plasma proteins, the unbound fraction For a low-extraction (restrictively cleared) drug, where u * CL int , The net effect is that the steady-state concentration of free drug, which is responsible for the therapeutic effect, remains largely unchanged, minimizing the risk of toxicity
But we know not every research setup has that luxury
Under specific conditions, such as acidic environments, enzymatic catalysis, or reductive microenvironments, the cleavable linker breaks, releasing the drug to enable targeted therapy while minimizing toxicity to healthy cells, improving ADC efficacy and safety