PKPD of PLGA-PEG-PLGA copolymeric micelles

Much research has been undertaken on stimuli-sensitive polymers and their applications in biochemistry, biomedicine, and a plethora of domains over the last decade. Stimuli-sensitive gelling polymers or in situ forming hydrogels, in particular, have drawn a lot of interest as prospective injectable implant systems with low invasiveness. Drugs or cells can be readily combined with the aqueous copolymer solution at low temperatures, and then injected into the body at a specific spot to form a semisolid matrix. Nanoparticles composed of amphiphilic block copolymers with biodegradable core-forming blocks are extremely appealing for the development of long-acting drug delivery systems. The FDA-approved PLGA-PEG-PLGA triblock copolymer possesses the capability to provide sustained release of various biologicals. Polymer solutions having an ability to convert from sol to gel at physiological temperatures can be used for in situ gel formation and injectability. Drug delivery systems with more complicated architectures are being developed as technology advances. As a result, the processes of drug absorption and disposition following the administration of these newer delivery systems have grown extremely complicated. Thus, knowledge of the pharmacokinetics and pharmacodynamics could be utilised to disentangle these complexities and increase our understanding of these drug delivery systems' in vivo behaviour, hence guiding their preclinical-to-clinical translation and clinical development.