Using mathematical models to integrate PD, PK, and disease progression. is now accepted by the FDA. MIDD allows developers to simulate a Phase III trial using virtual patients, predicting optimal dosing for elderly, pediatric, or renally-impaired populations without exposing them to risk.
Once absorbed, where does the drug go? Pharmacology measures volume of distribution (Vd)—a theoretical volume that indicates whether a drug remains in the blood (low Vd) or penetrates tissues, including the brain (high Vd). For CNS disorders like depression or glioblastoma, crossing the blood-brain barrier is paramount; pharmacology guides prodrug design or nanoparticle carriers to achieve this. pharmacology in drug discovery and development