Agios Pharmaceuticals, Inc., a leader in the field of cellular metabolism pioneering therapies for genetically defined diseases, today announced that the U.S. Food and Drug Administration (FDA) has approved PYRUKYND® (mitapivat) in the U.S. for the treatment of hemolytic anemia in adults with pyruvate kinase (PK) deficiency, a rare, debilitating, lifelong hemolytic anemia. PYRUKYND® is a first-in-class, oral PK activator and the first approved disease-modifying therapy for this disease.  More Information.  Click here for prescribing information.