phII Study of an HDAC Inhibitor in Very High-risk Relapsed/Refractory Hodgkin's Lymphoma Patients

Inclusion Criteria:

Signed Informed Consent Form; Age ≥ 18 years; History of histologically confirmed Hodgkin's lymphoma Subjects are eligible for this trial if (1) they have failed at least 1 cycle of chemotherapy, with or without radiotherapy, and if (2) they are considered incurable by the referring physician, and would be treated with second-line or subsequent-line salvage regimens, mainly with palliative intent; Clinical laboratory values ANC \> 1500/µL; Platelet count \> 75000/µL Hemoglobin \> 9 g/dL (may not be transfused or treated with erythropoietin to maintain or exceed this level) Total bilirubin \< 1.6 mg/dL; AST or ALT \< 2.5 times the upper limit of normal Serum creatinine \< 2.0 mg/dL or creatinine clearance \> 50 mL/min Serum Potassium and Magnesium within normal limits; Measurable disease (according to the International Working Group response criteria for HL); ECOG performance status of 0 or 1; Use of an effective means of contraception for women of childbearing potential and men with partners of childbearing potential (use per institutional standard); Life expectancy of \> 3 months;; At least 4 weeks since last treatment for HL Willingness and capability to comply with the requirements of the study;

Exclusion Criteria:

Active bacterial or mycotic infection requiring antimicrobial treatment on Day 1; Pregnancy or lactation; A marked baseline prolongation of QT/QTc interval (e.g. repeated demonstration of a QTc interval \> 450 ms, according to Bazett's correction formula); The use of concomitant medications that prolong the QT/QTc interval;

Clinically significant cardiovascular disease e.g.:

Uncontrolled hypertension, myocardial infarction, unstable angina New York Heart Association (NYHA) Grade II or greater congestive heart failure History of any cardiac arrhythmia requiring medication (irrespective of its severity) Grade II or greater peripheral vascular disease A history of additional risk factors for TdP (e.g., heart failure, hypokalemia, family history of Long QT Syndrome); Positive blood test for HIV, HBV and HCV; Identification of viral DNA by quantitative PCR for EBV (Ebstein Barr virus), JC virus, CMV (Cytomegalovirus) and Herpes Zoster; History of other disease, metabolic dysfunction, physical examination finding, or clinical laboratory finding giving reasonable suspicion of a disease or condition that contraindicates use of an investigational drug or that might affect interpretation of the results of the study or render the subject at high risk from treatment complications;