PolyMedix Inc., of Radnor, Pa., presented data from two Phase Ib/II trials of PMX-60056, a synthetic small molecule designed to reverse the anticoagulation activity of heparin and low molecular weight heparins. The data suggested that both heparin and tinzaparin appear to bind on a one-to-one molecular basis with PMX-60056, which could simplify dosing in future trials. The compound is in a Phase II trial to assess the safety and efficacy of reversing heparin in patients undergoing percutaneous coronary intervention procedures.