The factors of aging baby boomers and rising obesity and diabetes rates are combining to create the perfect storm for peripheral arterial disease (PAD). Not only is the disease underdiagnosed, but it’s poised to become a big problem for society as well as a huge clinical issue for literally tens of millions of patients, according to Rob Lyles, vice president and global leader of Cook Medical’s Peripheral Intervention division.
According to statistics from recent studies, PAD affects an estimated 27 million people in Europe and North America—including 8 to 12 million Americans. With these numbers in mind, a new first-to-market drug-eluting stent (DES) is positioned to take advantage of a huge market opportunity in Europe.
Zilver PTX, manufactured by Cook Medical (Bloomington, IN), is the world’s first self-expanding DES for the superficial femoral artery (SFA). The device recently received a CE mark following the world’s largest clinical trial (1200 patients) for a peripheral stent. The Zilver stent is currently an investigational device in the United States.
The stent uses nitinol technology, which gives the device malleable properties before it’s implanted in the body. Once deployed, the stent stiffens up as it reaches body temperature. However, the advantage of nitinol is that if the device somehow becomes compressed, it immediately springs back to its original shape.
“What’s exciting about Zilver PTX, [is that] now [patients] have a brand new option—a drug-eluting stent,” says Lyles. “It’s a game changer—it puts an option into the mix that’s never been there.” Other treatment options for patients with PAD include balloon angioplasty, bare-metal stenting, and medical therapy, which doesn’t involve surgery. According to Lyles, balloon angioplasty has a 30% to 40% success rate in Europe. After two years, Zilver PTX demonstrated effectiveness in 90% to 95% of the cases.
“We’re going to be able to have a tremendous advantage in the market for a period of time, because it’s such a huge step, we have the data to back it up, and nobody else has anything that’s even close,” says Lyles. “From a competitive perspective, I think Cook is sitting in a very good spot relative to stenting the SFA.”
Zilver PTX is now available in nearly 50 countries worldwide, including Germany, France, Italy, Spain, the United Kingdom, and Israel.