Related Experiment Videos
Nasal drug delivery--possibilities, problems and solutions
1West Pharmaceutical Services, Drug Delivery and Clinical Research Centre Ltd, Albert Einstein Centre, Nottingham Science and Technology Park, Nottingham, UK. lisbeth.illum@ccinternet.co.uk
Summary
Nasal drug delivery can be improved with simple methods to transport challenging molecules, including vaccines and DNA, directly to the brain. This approach shows promise for efficient therapeutic delivery via the nasal route.
Area of Science:
- Pharmacology
- Biotechnology
- Drug Delivery Systems
Background:
- Nasal drug delivery faces challenges in efficient molecule transport across the nasal membrane.
- Current methods struggle with delivering large molecules like proteins, polysaccharides, and DNA plasmids intranasally.
Purpose of the Study:
- To explore strategies for enhancing nasal drug transport.
- To demonstrate the feasibility of delivering challenging therapeutics, including vaccines and brain-targeted drugs, via the nasal route.
- To present recent clinical findings on a novel nasal chitosan vaccine delivery system.
Main Methods:
- Review of existing challenges and proposed solutions for nasal drug delivery.
- Discussion of techniques to improve nasal membrane permeability.
- Analysis of clinical study data for a chitosan-based nasal vaccine delivery system.
Main Results:
- Simple concepts can significantly improve nasal drug transport.
- Efficient delivery of small polar molecules, peptides, proteins, polysaccharides, and DNA plasmids is achievable.
- Direct nose-to-brain drug delivery has been demonstrated in human studies.
- Phase I/II clinical trials show positive results for a novel nasal chitosan vaccine delivery system.
Conclusions:
- Nasal drug delivery offers a viable and efficient route for various challenging therapeutics.
- Direct nose-to-brain delivery is a feasible therapeutic strategy.
- Chitosan-based nasal systems represent a promising advancement in vaccine delivery.