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Published on: September 17, 2014
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Sustained-release drug delivery systems
Rachel Williams1, Helen Cauldbeck2, Victoria Kearns3
1Department of Eye and Vision Science, University of Liverpool, Liverpool, L69 3BX, UK. rlw@liverpool.ac.uk.
Eye (London, England)
|May 17, 2024
Summary
New drug delivery systems for the eye, including peptide hydrogel contact lenses and silicone oil formulations, offer sustained release of active pharmaceutical ingredients (APIs) to improve treatment outcomes.
Area of Science:
- Ophthalmology
- Materials Science
- Drug Delivery
Background:
- Topical eye drops have limitations in drug delivery, necessitating sustained-release systems.
- Developing novel materials with specific functional properties is key to improving ocular drug administration.
- Clinical needs must be integrated with material science and chemistry for enhanced therapeutic strategies.
Purpose of the Study:
- To explore material design and modification for sustained therapeutic effects in ocular treatments.
- To present two distinct approaches for developing advanced drug delivery systems for the eye.
- To highlight the potential of interdisciplinary collaboration in ophthalmology.
Main Methods:
- Synthesis of a peptide hydrogel from a naturally-derived antimicrobial material.
- Development of a bandage contact lens incorporating the peptide hydrogel.
- Investigation of silicone oil tamponade agents for enhanced drug solubility and sustained release.
Main Results:
- A peptide hydrogel bandage contact lens was designed for potential prophylactic use against post-surgery infections.
- Silicone oil tamponades demonstrated adjunctive behavior, enhancing retinoic acid solubility.
- Sustained release of retinoic acid over several weeks was achieved using silicone oil formulations.
Conclusions:
- Interdisciplinary partnerships between ophthalmologists, materials scientists, and chemists are crucial for innovation.
- Novel sustained-release systems show promise for improving patient outcomes in ocular treatments.
- Peptide hydrogels and modified silicone oils represent promising avenues for advanced ocular drug delivery.
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