Journal
PHARMACEUTICS
Volume 13, Issue 4, Pages -Publisher
MDPI
DOI: 10.3390/pharmaceutics13040500
Keywords
poly(lactic-co-glycolic acid) (PLGA); blood– brain barrier (BBB); current Good Manufacturing Practice (cGMP); Food and Drug Administration (FDA); nanotechnology
Categories
Funding
- Plough Center for Sterile Drug Delivery Solutions
- National Institutes of Health [CA213232]
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The blood-brain barrier poses a challenge to drug delivery into the brain, but PLGA nanoparticles have shown promise in improving drug penetration. The addition of excipients like PEG and PVA can further enhance the stability and effectiveness of PLGA formulations.
The blood-brain barrier (BBB) is a natural obstacle for drug delivery into the human brain, hindering treatment of central nervous system (CNS) disorders such as acute ischemic stroke, brain tumors, and human immunodeficiency virus (HIV)-1-associated neurocognitive disorders. Poly(lactic-co-glycolic acid) (PLGA) is a biocompatible polymer that is used in Food and Drug Administration (FDA)-approved pharmaceutical products and medical devices. PLGA nanoparticles (NPs) have been reported to improve drug penetration across the BBB both in vitro and in vivo. Poly(ethylene glycol) (PEG), poly(vinyl alcohol) (PVA), and poloxamer (Pluronic) are widely used as excipients to further improve the stability and effectiveness of PLGA formulations. Peptides and other linkers can be attached on the surface of PLGA to provide targeting delivery. With the newly published guidance from the FDA and the progress of current Good Manufacturing Practice (cGMP) technologies, manufacturing PLGA NP-based drug products can be achieved with higher efficiency, larger quantity, and better quality. The translation from bench to bed is feasible with proper research, concurrent development, quality control, and regulatory assurance.
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