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Strategic Approaches for Colon Targeted Drug Delivery: An Overview of Recent Advancements
Sang Hoon Lee1, Rajiv Bajracharya1, Jeong Youn Min1
1College of Pharmacy, Dongguk University-Seoul, Dongguk-ro 32, Ilsan-Donggu, Goyang 10326, Korea.
Abstract:
Colon targeted drug delivery systems have gained a great deal of attention as potential carriers for the local treatment of colonic diseases with reduced systemic side effects and also for the enhanced oral delivery of various therapeutics vulnerable to acidic and enzymatic degradation in the upper gastrointestinal tract. In recent years, the global pharmaceutical market for biologics has grown, and increasing demand for a more patient-friendly drug administration system highlights the importance of colonic drug delivery as a noninvasive delivery approach for macromolecules. Colon-targeted drug delivery systems for macromolecules can provide therapeutic benefits including better patient compliance (because they are pain-free and can be self-administered) and lower costs. Therefore, to achieve more efficient colonic drug delivery for local or systemic drug effects, various strategies have been explored including pH-dependent systems, enzyme-triggered systems, receptor-mediated systems, and magnetically-driven systems. In this review, recent advancements in various approaches for designing colon targeted drug delivery systems and their pharmaceutical applications are covered with a particular emphasis on formulation technologies.
Insights
Colon targeted drug delivery systems offer a noninvasive approach for treating colonic diseases and delivering sensitive drugs orally. These advanced systems enhance patient compliance and reduce side effects for improved therapeutic outcomes.
Area of Science:
- Pharmaceutical Sciences
- Biomedical Engineering
Background:
- Colon targeted drug delivery systems are crucial for local treatment of colonic diseases, minimizing systemic side effects.
- They are vital for oral delivery of biologics and macromolecules vulnerable to degradation in the upper gastrointestinal tract.
- The growing pharmaceutical market for biologics necessitates patient-friendly, noninvasive drug administration methods.
Purpose of the Study:
- To review recent advancements in colon targeted drug delivery systems.
- To highlight pharmaceutical applications of these systems, focusing on formulation technologies.
- To discuss strategies for efficient colonic drug delivery for local and systemic effects.
Main Methods:
- Exploration of various strategies including pH-dependent, enzyme-triggered, receptor-mediated, and magnetically-driven systems.
- Review of formulation technologies for colon targeted drug delivery.
- Analysis of recent advancements and pharmaceutical applications.
Main Results:
- Colon targeted systems offer improved patient compliance and cost-effectiveness.
- Various strategies have been developed to achieve efficient drug release in the colon.
- Formulation technologies are key to successful colon targeted drug delivery.
Conclusions:
- Colon targeted drug delivery systems are essential for effective treatment of colonic diseases and delivery of macromolecules.
- Continued research in formulation technologies will enhance the efficacy and patient-friendliness of these systems.
- Noninvasive colon delivery approaches represent a significant advancement in pharmaceutical drug delivery.
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