Antiproliferative drug and delivery device

摘要

A drug and drug delivery system may be utilized in the treatment of vascular disease. A drug delivery device for treating in-stent intimal hyperplasia in human vessel walls is described which comprises: an intraluminal medical device, the intraluminal medical device including a stent having a fenestrated structure, the stent comprising a plurality of bands and links defining a substantially tubular device with openings; a therapeutic dosage of an agent having anti-proliferative and anti-inflammatory properties and having a multi-mode action targeted toward a pathophysiology of human vascular lesions, including the reduction of monocyte chemotactic protein levels in the vessel walls, releasably affixed to the intraluminal medical device for a treatment of in-stent intimal hyperplasia, the agent being incorporated in a multi-layer non-erodible polymeric coating and affixed to the bands and links, the non-erodible polymeric coating including a first layer comprising the agent and a second layer acting as a diffusion barrier and having a thickness in the range from about one micron to about twenty microns with the first layer having a thickness in the range from about eight microns to about twelve microns and the second layer having a thickness in the range from about one micron to about two microns.