Mocetinostat (MGCD0103) Plus Brentuximab Vedotin (SGN-35) in Patients With Relapsed or Refractory Hodgkin Lymphoma

All patients will receive a 1-week lead-in with mocetinostat alone (administered days 1, 3, and 5). Patients with palpable peripheral lymph nodes will undergo FNA before and after this 1 week treatment. Cycle 1 will then begin 15 days (+/-3 days) following initiation of the lead-in.