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Biodegradable injectable in situ forming drug delivery systems
1Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, Alberta T6G 2N8, Canada.
Summary
Injectable polymers form semi-solid depots for localized, prolonged drug delivery, offering ease of application. This review explores strategies for creating these in situ setting systems, detailing their pros and cons.
Area of Science:
- Biomaterials Science
- Polymer Chemistry
- Drug Delivery Systems
Background:
- Localized drug delivery aims to increase therapeutic efficacy and reduce systemic side effects.
- Polymeric materials offer versatile platforms for controlled drug release applications.
- In situ forming implants provide a minimally invasive approach to drug depot creation.
Purpose of the Study:
- To review various strategies for preparing in situ setting polymeric drug delivery systems.
- To outline the advantages and disadvantages of these systems for localized drug delivery.
- To provide a comprehensive overview of the current landscape of injectable polymeric drug depots.
Main Methods:
- Literature review of in situ setting polymeric drug delivery systems.
- Analysis of different polymerization and formulation strategies.
- Comparative assessment of system advantages and disadvantages.
Main Results:
- Multiple strategies exist for creating in situ setting polymeric drug depots.
- These systems enable localized and prolonged release of various therapeutic agents.
- Key considerations include injectability, in situ solidification, drug loading, and release kinetics.
Conclusions:
- In situ setting polymeric systems offer significant advantages for localized, prolonged drug delivery.
- The choice of strategy depends on the specific drug and desired release profile.
- Further research can optimize these systems for enhanced therapeutic outcomes.