Agios Pharmaceuticals (AGIO) shares have soared after the company announced that its collaboration partner Celgene (CELG) plans to file a New Drug Application (NDA) with the FDA by year end seeking approval of Agios' AG-221 for the treatment of patients with advanced blood cancers who have a mutation in a protein called isocitrate dehydrogenase-2 (IDH2). Celgene will be discussing its plans for the NDA today at the Citi 11th Annual Biotech Conference in Boston. The data supporting the NDA was generated in a Phase 1/2 study in patients with IDH2 mutation-positive acute myeloid leukemia (AML). AG-221 (enasidenib) inhibi