Abstract
Targeting drugs to the gastrointestinal tract has been and continues to be an active area of research. Guttargeting is an effective means of increasing the local concentration of active substance at the desired site of action while minimizing concentrations elsewhere in the body that could lead to unwanted side-effects. Several approaches to intestinal targeting exist. Physicochemical property manipulation can drive molecules to large, polar, low absorption space or alternatively to lipophilic, high clearance space in order to minimize systemic exposure. Design of compounds that are substrates for transporters within the gastrointestinal tract, either uptake or efflux, or at the hepato-biliary interface, may help to increase intestinal concentration. Prodrug strategies have been shown to be effective particularly for colon targeting, and several different technology formulation approaches are currently being researched. This review provides examples of various approaches to intestinal targeting, and discusses challenges and areas in need of future scientific advances.
Keywords: Drug, Gut, Intestine, Non-systemic, Prodrug, Soft drug, Targeting, Transporter.
Current Topics in Medicinal Chemistry
Title:Intestinal Targeting of Drugs: Rational Design Approaches and Challenges
Volume: 13 Issue: 7
Author(s): Kevin J. Filipski, Manthena V. Varma, Ayman F. El-Kattan, Catherine M. Ambler, Roger B. Ruggeri, Theunis C. Goosen and Kimberly O. Cameron
Affiliation:
Keywords: Drug, Gut, Intestine, Non-systemic, Prodrug, Soft drug, Targeting, Transporter.
Abstract: Targeting drugs to the gastrointestinal tract has been and continues to be an active area of research. Guttargeting is an effective means of increasing the local concentration of active substance at the desired site of action while minimizing concentrations elsewhere in the body that could lead to unwanted side-effects. Several approaches to intestinal targeting exist. Physicochemical property manipulation can drive molecules to large, polar, low absorption space or alternatively to lipophilic, high clearance space in order to minimize systemic exposure. Design of compounds that are substrates for transporters within the gastrointestinal tract, either uptake or efflux, or at the hepato-biliary interface, may help to increase intestinal concentration. Prodrug strategies have been shown to be effective particularly for colon targeting, and several different technology formulation approaches are currently being researched. This review provides examples of various approaches to intestinal targeting, and discusses challenges and areas in need of future scientific advances.
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Cite this article as:
Filipski Kevin J., Varma Manthena V., El-Kattan Ayman F., Ambler Catherine M., Ruggeri Roger B., Goosen Theunis C. and Cameron Kimberly O., Intestinal Targeting of Drugs: Rational Design Approaches and Challenges, Current Topics in Medicinal Chemistry 2013; 13 (7) . https://dx.doi.org/10.2174/1568026611313070002
DOI https://dx.doi.org/10.2174/1568026611313070002 |
Print ISSN 1568-0266 |
Publisher Name Bentham Science Publisher |
Online ISSN 1873-4294 |
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