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Bioadhesive polymers in peptide drug delivery
1School of Pharmacy, University of Wisconsin-Madison 53706.
Biomaterials
|November 1, 1990
Summary
Peptide drugs often require injections. This study explores alternative delivery routes like buccal, nasal, and ocular, assessing their potential for effective peptide drug delivery and identifying benefits of bioadhesive formulations.
Area of Science:
- Pharmacology
- Drug Delivery Systems
- Biotechnology
Background:
- Peptide-based drugs are increasingly available but typically require injection.
- Alternative non-invasive delivery routes are sought to improve patient compliance and drug accessibility.
Purpose of the Study:
- To quantitatively evaluate peptide drug delivery via buccal, nasal, ocular, and gastrointestinal routes.
- To assess the feasibility of non-injection peptide administration and identify optimal strategies.
Main Methods:
- Estimation of permeability coefficients for various mucosal tissues.
- Calculation of peptide drug delivery rates and resulting systemic levels.
- Comparison of calculated systemic levels with therapeutic requirements.
Main Results:
- Quantitative analysis of peptide permeability across buccal, nasal, ocular, and gastrointestinal mucosae.
- Modeling of systemic drug levels achievable through alternative routes.
- Identification of specific scenarios where bioadhesive formulations enhance peptide delivery.
Conclusions:
- Non-invasive peptide drug delivery via mucosal routes is quantitatively feasible.
- Bioadhesive formulations show promise for improving peptide delivery efficiency.
- Further research into alternative delivery systems can overcome limitations of injectable peptide therapeutics.