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Advancements in Colon-Targeted Drug Delivery: A Comprehensive Review on Recent Techniques with Emphasis on Hot-Melt Extrusion and 3D Printing Technologies
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Advancements in Colon-Targeted Drug Delivery: A Comprehensive Review on Recent Techniques with Emphasis on Hot-Melt Extrusion and 3D Printing Technologies
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Journal Article
Advancements in Colon-Targeted Drug Delivery: A Comprehensive Review on Recent Techniques with Emphasis on Hot-Melt Extrusion and 3D Printing Technologies
2024
Overview
This review investigates the progression and effectiveness of colon-targeted drug delivery systems, offering a comprehensive understanding of the colon's anatomy and physiological environment. Recognizing the distinctive features of the colon is crucial for successfully formulating oral dosage forms that precisely target specific areas in the gastrointestinal tract (GIT) while minimizing side effects through mitigating off-target sites. This understanding forms the basis for designing effective targeted drug delivery systems. The article extensively examines diverse approaches to formulating drugs for colonic targeting, highlighting key polymers and excipients in their production. Special emphasis is given to innovative approaches such as hot-melt extrusion (HME) and three-dimensional printing (3D-P), renowned for their accuracy in drug release kinetics and intricate dosage form geometry. However, challenges arise regarding material standardization and the complex network of regulatory clearances required to confirm safety and effectiveness. The review provides insights into each application’s advantages and potential challenges. Furthermore, it sheds light on the local diseases that necessitate colon targeting and the available marketed products, providing an overview of the current state of colon-targeted drug delivery systems. Additionally, the review emphasizes the importance of testing drugs in a controlled
in vitro
environment during the development phase. It also discusses the future directions for successful development in this field. By integrating knowledge across anatomy, formulation techniques, and assessment methodologies, this review is a valuable resource for researchers navigating the dynamic field of colonic drug delivery.
Graphical Abstract
Publisher
Springer International Publishing
