Study of LBH589, A Deacetylase Inhibitor in Patients With Recurrent or Refractory Hodgkin or Non-Hodgkin's Lymphoma

Inclusion Criteria: * Male or female patients age ≥ 18 years old with relapsed/refractory Hodgkin lymphoma or NHL patients who have relapsed or are refractory after receiving a minimum of two prior therapies * Ability to provide written informed consent obtained prior to participation in the study and any related procedures being performed Laboratory requirements: * ANC ≥ 1.5 x 10(9th)/L, unless due to bone marrow involvement with lymphoma * Hemoglobin ≥ 9 g/dl without packed red blood cell dependency, unless due to bone marrow involvement with lymphoma * Platelets ≥ 100 x 10(9th)/L, unless due to bone marrow involvement with lymphoma * Serum creatinine ≤ 1.5 x Upper limit of Normal, or calculated Creatinine Clearance ≥ 50 mL/min * AST and ALT ≤ 2.5 x Upper limit of Normal, unless due to liver involvement with lymphoma * Serum bilirubin ≤ 1.5 x Upper limit of Normal * Albumin \> 3.0 g/dl * Serum potassium ≥ Lower limit of Normal * Total serum calcium \[corrected for serum albumin\] or ionized calcium ≥ Lower limits of normal * Serum magnesium ≥ Lower limit of Normal * Serum phosphorus ≥ Lower limit of Normal * TSH ≥ LLN and free T4 within normal limits. Patients are permitted to receive thyroid hormone supplements to treat underlying hypothyroidism. * Baseline MUGA or ECHO must demonstrate LVEF ≥ 50% * ECOG Performance Status of ≤ 2 Exclusion Criteria: * Prior HDAC, DAC, HSP90 inhibitors or valproic acid for the treatment of cancer * Patients who will need valproic acid for any medication during the study or within 5 days prior to first LBH589 treatment * Peripheral neuropathy ≥ CTCAE grade 1 * Impaired cardiac function or clinically significant cardiac diseases, including any one of the following: * Patients with congenital QT syndrome * History or presence of sustained ventricular tachyarrhythmia. * Any history of ventricular fibrillation or torsade de pointes * Bradycardia defined as Heart Rate \< 50 bpm. Patients with pacemakers are eligible if Heart Rate ≥ 50 bpm * Screening EKG with a QTc.450msec * Right Bundle branch block + left anterior hemiblock (bifascicular block) * Patients with myocardial infarction or unstable angina ≤ 6 months prior to starting study drug * other clinically significant heart disease (e.g. CHF NY Heart Association class III or IV, uncontrolled hypertension, history of labile hypertension or history of poor compliance with an antihypertensive regimen) * Impairment of GI function or GI disease that may significantly alter the absorption of LBH589 * Patients with Diarrhea \> CTCAE grade 1 * Other concurrent severe and/or uncontrolled medical conditions (e.g. uncontrolled diabetes or active or uncontrolled infection) including abnormal laboratory values that could cause unaccepted safety risks or compromise compliance with the protocol * Patients using medications that have a relative risk of prolonging the QT interval or inducing torsade de pointes if treatment cannot be discontinued or switched to a different medication prior to starting study drug * Concomitant use of CYP3A4 inhibitors * Patients who have received targeted agents within 2 weeks or within 5 half-lives of the agent and active metabolites(which ever is longer) and who have not recovered from side effects of those therapies * Patients who have received either immunotherapy within ≤ 8 weeks;chemotherapy within ≤ 4 weeks or radiation therapy to \>30% of marrow-bearing bone within ≤ weeks prior to starting study treatment or who have not yet recovered from side effects of such therapies * Patients with an active bleeding tendency or is receiving any treatment with therapeutic doses of sodium warfarin or coumadin derivatives. Low doses of Coumadin (e.g.≤2 mg/day) to maintain line patency is allowed. * Patients who have undergone major surgery ≤ 4 weeks prior to starting study drug or who have not recovered from side effects of such therapy * Women who are pregnant or breast feeding or women of childbearing potential not using effective method of birth control * Male patients whose sexual partners are women of childbearing potential not using effective birth control * Patients with prior malignancy within 5 years (except for basal or squamous cell carcinoma, in situ cancer of the cervix or early stage prostate or bladder carcinomas) * Patients with known positivity for HIV or hepatitis C: baseline testing for HIV and Hepatitis C is not required * Prior allogenic stem cell transplant * Patients with any significant history of non-compliance to medical regimens or unwilling or unable to comply with the instructions given to him/her by the study staff * Patients taking CYP2D6 inhibitors should be carefully monitored, but these drugs are not necessarily contraindicated when use concomitantly with LBH. Use of these drugs is not an exclusion criterion