RADNOR, Pa.--(BUSINESS WIRE)--PolyMedix, Inc. (OTC BB: PYMX), an emerging biotechnology company focused on developing new therapeutic drugs to treat acute cardiovascular disorders and infectious diseases, has initiated a Phase 1B/2 dose-ranging clinical study with its anticoagulant reversing agent, PMX-60056. The study is intended to demonstrate the safety and efficacy of PMX-60056 in reversing varying heparin levels, including the highest levels commonly used in surgical settings. Results from this Phase 1B/2 study are expected by the end of the second quarter of 2010.