When a drug enters clinical trials, pharmacology becomes a tool for optimization.
Instead of looking at a single target, systems pharmacology uses computational models to map the entire biological network. A drug designed to treat rheumatoid arthritis might hit JAK3 (good for inflammation) but also inadvertently hit JAK2 (leading to blood clots). Systems pharmacology predicts these polypharmacology effects in silico before synthesis. pharmacology in drug discovery and development
The journey begins with "Target Identification." Pharmacologists work to understand the underlying biology of a disease. For example, if a specific receptor is overactive in cancer cells, that receptor becomes the "target." When a drug enters clinical trials, pharmacology becomes
Once a target is identified, the search for a molecule that can interact with it begins. This is where High-Throughput Screening (HTS) comes in. Pharmacologists test thousands of compounds to see which ones bind to the target. Phase II (Proof-of-Concept):
However, finding a compound that binds isn't enough. This is where the "Hit-to-Lead" phase occurs, driven by pharmacological data:
Pharmacology bridges the gap between animals and humans.