Thus far, the two drug-eluting stent (DES) products commercialized in the U.S. utilize a polymer as a method of incorporating drug and device. But the first-generation use of polymers may not be a model for future DES technologies, according to Martin Leon, MD, chairman of the Cardiovascular Research Institute (New York), in a presentation on the future of DES technologies during this year’s annual meeting of the American Heart Association (Dallas) in New Orleans.