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Updated: Mar 29, 2026

Preparation and Characterization of Individual and Multi-drug Loaded Physically Entrapped Polymeric Micelles
Published on: August 28, 2015
Controlled Delivery of Chemopreventive Agents by Polymeric Implants
Farrukh Aqil1,2, Ramesh C Gupta3,4
1James Graham Brown Cancer Center, University of Louisville, 580 S. Preston St., #304B, Louisville, KY, 40202, USA.
Abstract:
The clinical development of cancer chemopreventive agents has been hampered by poor oral bioavailability issue. Several compounds have low aqueous solubility and undergo extensive first pass metabolism following oral dosing. To overcome this limitation, we developed polymeric implants from biodegradable ε-polycaprolactone (PCL) that can deliver both lipophilic as well as hydrophilic compounds. Implants furnish controlled release of compounds for long duration and provide dose-dependent release. The rate of release in vitro correlated well with the in vivo release. The polymeric implant technology thus overcomes the oral bioavailability issues, lowers the total required dose and minimizes or eliminates toxicity generally associated with high doses.
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