Study to Evaluate Safety, Tolerability, Maximum Tolerated Dose (MTD), Efficacy, and Pharmacokinetics (PKs) of CPI-613 Given Twice Weekly for Three Consecutive Weeks in Patients With Advanced Hematologic Malignancies

Inclusion Criteria: * histologically or cytologically documented relapsed and/or refractory hematologic malignancy * Karnofsky Performance Status (KPS) of \>70%. * Must be ≥18 years of age. * Expected survival \>1 month. * Women of child-bearing potential must use accepted contraceptive methods * No radiotherapy, treatment with cytotoxic agents (except CPI-613), treatment with biologic agents or any anti-cancer therapy within the 3 weeks prior to treatment with CPI-613. Exclusion Criteria: * Serious medical illness, such as significant cardiac disease (e.g. symptomatic congestive heart failure, unstable angina pectoris, myocardial infarction within the past 6 months, uncontrolled cardiac arrhythmia, or New York Heart Association Class III or IV), or severe debilitating pulmonary disease, that would potentially increase patients' risk for toxicity. * Patients with active central nervous system (CNS) or epidural tumor. * Any active uncontrolled bleeding, and any patients with a bleeding diathesis (e.g., active peptic ulcer disease). * Pregnant women, or women of child-bearing potential not using reliable means of contraception. * Lactating females because the potential of excretion of CPI-613 into breast milk. * Life expectancy less than 1 month. * Any condition or abnormality which may, in the opinion of the investigator, compromise the safety of patients.