Ra Medical Systems Inc., of Carlsbad, Calif., reported that the U.S. FDA has granted investigational device exemption (IDE) approval to study its DABRA excimer laser system as an atherectomy device to treat peripheral vascular stenosis.
The recent controversy over the use of paclitaxel in the peripheral vasculature has clouded the larger debate over whether bypass is superior to endovascular therapies for the lower limbs. However, a new study suggests that nitinol stents provide a feasible alternative to bypass even for lesions of the femoropopliteal artery that are 30 cm in length.
The U.S. FDA has given Pq Bypass Inc. the greenlight to conduct a pivotal trial aimed at assessing its Torus stent graft in the treatment of peripheral artery disease (PAD) in the superficial femoral artery. The TORUS-2 study is the Milpitas, Calif.-based startup's second IDE approval in less than two years and the first pivotal IDE for an SFA stent graft since W.L. Gore & Associates Inc.'s Viabahn device, which notched an initial PMA approval in 2005.