Auxilium Pharmaceuticals, Inc. (Auxilium) is a specialty biopharmaceutical company with a focus on developing and marketing products to predominantly specialist audiences. As of December 31, 2011, the Company markets two products: Testim testosterone gel and XIAFLEX (collagenase clostridium histolyticum). XIAFLEX is an injectable collagenase that the Company in-licensed from BioSpecifics. Under its agreement with BioSpecifics, it has exclusive worldwide rights to develop, market and sell certain products containing XIAFLEX, other than dermal formulations labeled for topical administration. As of December 31, 2011, the Company�s product pipeline includes XIAFLEX for the treatment of Peyronie�s disease (Peyronie�s), which is in Phase III, XIAFLEX for the treatment of Adhesive Capsulitis (Frozen Shoulder syndrome), which is in Phase II, and XIAFLEX for the treatment of edematous fibrosclerotic panniculopathy (cellulite), which is in Phase Ib.