Study of Orally Administered AG-881 in Patients With Advanced Hematologic Malignancies With an IDH1 and/or IDH2 Mutation

Inclusion Criteria: Patients must be ≥18 years of age Patients must have documented IDH1 and/or IDH2 gene-mutated disease Patients must have an advanced hematologic malignancy with an IDH1 and/or IDH2 mutation Patient must be able to understand and willing to sign an informed consent Patients must have ECOG PS of 0 to 2 Patients must have adequate hepatic function as evidenced by serum total bilirubin ≤1.5 upper limit of normal (ULN), unless considered due to Gilbert's disease or leukemic involvement Aspartate aminotransferase (AST), alanine aminotransferase (ALT), and alkaline phosphatase (ALP) ≤3.0 × ULN, unless considered due to involvement by the neoplasm under consideration for treatment Patients must have adequate renal function as evidenced by a serum creatinine ≤2.0 × ULN or Creatinine clearance 40 mL/min based on the Cockroft-Gault glomerular filtration rate (GFR) estimation Patients must be recovered from any clinically relevant toxic effects of any prior surgery, radiotherapy, or other therapy intended for the treatment of cancer Female patients with reproductive potential must have a negative serum pregnancy test within 7 days prior to the start of therapy. Patients with reproductive potential are defined as sexually mature women who have not undergone a hysterectomy, bilateral oophorectomy or tubal occlusion or who have not been naturally postmenopausal (i.e., who have not menstruated at all) for at least 24 consecutive months (i.e., has had menses at any time in the preceding 24 consecutive months) Exclusion Criteria: Patients who have undergone HSCT within 60 days Patients who received systemic anticancer therapy or radiotherapy \<14 days prior to their first day of study drug administration Patients who received an investigational agent \<14 days prior Patients who are pregnant or breast feeding Patients with an active severe infection who require anti-infective therapy or with an unexplained fever \>38.5°C during Screening visits or on their first day of study drug administration (at the discretion of the Investigator, patients with tumor fever may be enrolled) Patients with New York Heart Association (NYHA) Class III or IV congestive heart failure or LVEF \<40% by echocardiogram (ECHO) or multi-gated acquisition (MUGA) scan within approximately 28 days of C1D1 Patients with a history of myocardial infarction within the last 6 months Patients with known unstable or uncontrolled angina pectoris Patients with a known history of severe and/or uncontrolled ventricular arrhythmias Patients with QTc interval ≥450 msec or with other factors that increase the risk of QT prolongation or arrhythmic events Patients taking medications that are known to prolong the QT interval Patients with known infection with human immunodeficiency virus (HIV) or active hepatitis B or C Patients with clinical symptoms suggesting active central nervous system (CNS) leukemia or known CNS leukemia. Evaluation of cerebrospinal fluid is only required if there is a clinical suspicion of CNS involvement by leukemia during Screening Patients with immediately life-threatening, severe complications of hematologic malignancies such as uncontrolled bleeding, pneumonia with hypoxia or shock, and/or disseminated intravascular coagulation