IN.PACT BTK study is a prospective, multi-center, 1:1, randomized feasibility study assessing the safety and effectiveness of the IN.PACT 0.014 DCB, a 3.5 μg/mm2 dose paclitaxel-coated balloon, versus conventional percutaneous transluminal angioplasty (PTA) for the treatment of CTOs in the infrapopliteal arteries. The study enrolled 50 subjects at nine sites in Europe.