Auxilium Pharmaceuticals, Inc. (NASDAQ: AUXL), a specialty biopharmaceutical company, today announced that the Arthritis Advisory Committee appointed by the U.S. Food and Drug Administration (FDA) recommended by a unanimous vote of 12 to 0 that XIAFLEX™ (collagenase clostridium histolyticum), a novel, first-in-class, orphan-designated, biologic, be granted marketing approval by the FDA for the treatment of Dupuytren's contracture.