Pharmacokinetics describes the relationship between drug concentration and time in an organism following administration.<\/p>\n
Explicitly, pharmacokinetics is the study of drug absorption, distribution, metabolism and elimination (ADME).<\/p>\n
Typically, the first in vivo<\/em>\u00a0experiment during an oral drug discovery project would be a single IV bolus dose in a pre-clinical species. This would already allow the determination of key PK parameters such as AUC, Cmax<\/sub>, t\u00bd<\/sub>, Vss and clearance.<\/p>\n After a test compound has successfully passed this first PK hurdle, further PK studies are used to build a more detailed picture of all aspects of ADME.<\/p>\n Oral PK, in combination with the above IV data allows the determination of oral bioavailability (F).<\/p>\n Low oral F can be caused by poor absorption and\/or high first-pass hepatic elimination.<\/p>\n Collection of urine or bile allows calculation of renal and biliary clearance and identification of metabolites.<\/p>\n","protected":false},"excerpt":{"rendered":" Explore In Vivo Pharmacokinetic (PK) Studies: Learn about drug absorption, distribution, metabolism, and elimination (ADME). Discover the key parameters – AUC, Cmax, t\u00bd, Vss, and clearance – in early-stage drug development. Uncover insights into oral bioavailability and first-pass hepatic elimination. Enhance your understanding of PK through detailed ADME analysis and renal\/biliary clearance studies.<\/p>\n","protected":false},"featured_media":0,"template":"","category":[1],"resource_tag":[],"class_list":["post-3086","technical-note","type-technical-note","status-publish","hentry","category-uncategorized"],"acf":[],"yoast_head":"\n