Patent ID: 8673336
Filing Date: 2014-03-18
Classification: A61F,A61K,A61L,A61P

Abstract:
1. An implantable drug delivery device comprising: an implantable device configured to be implanted within tissue, lumens, or organs of the body; a beneficial agent provided in or on the implantable medical device for delivery to the tissue, lumen, or organ of the body to achieve a desired beneficial effect; wherein the beneficial agent is provided in two different forms, a first form having a higher solubility and a second form having a lower solubility, and wherein the two different forms are present in a proportion which is selected to achieve a desired release rate that is different from both a release rate of the first form alone and a release rate of the second form alone; wherein the beneficial agent is imatinib and the first form is a free-base form of imatinib and the second form is a salt form of imatinib.