ATLANTA--(BUSINESS WIRE)--Sciele Pharma, Inc. (NASDAQ: SCRX), a specialty pharmaceutical company, today announced that Addrenex Pharmaceuticals has completed patient enrollment of its first Phase III clinical trial in the U.S. for Clonicel to treat attention deficit and hyperactivity disorder (ADHD) in children. Addrenex is also continuing to enroll patients in an additional Phase III trial using Clonicel in combination with stimulants such as methylphenidate and dextro-amphetamine/amphetamine to treat ADHD.