Pralatrexate + Romidepsin in Relapsed/Refractory Lymphoid Malignancies

The non- Hodgkin lymphomas (NHL) represent a heterogeneous group of malignancies. Under the
rubric of lymphoma exist some of the fastest growing cancers known to science, (Burkett's
lymphoma, lymphoblastic lymphoma/leukemia), as well as some of the most indolent (small
lymphocytic lymphoma, follicular lymphoma, and marginal zone lymphoma). This remarkable
diversity of biology imposes significant challenges. Researchers are seeking to understand
the cell of origin and differentiate what are sometimes subtle differences between the
related sub-types of disease; and to identify the best treatments for these subtypes, with
the ever-increasing likelihood that new understanding of the molecular pathogenesis of these
diseases will result in an increase in new drugs for specific target populations.

Inclusion Criteria:

Phase I: Patients must have histologically confirmed relapsed or refractory Non-Hodgkin's
lymphoma, Hodgkin's Disease or multiple myeloma (defined by World Health Organization (WHO)
criteria).

Phase II: Patients must have histologically confirmed relapsed or refractory T-Cell
Lymphoma (as defined by WHO criteria).

- Must have received first line chemotherapy. No upper limit for the number of prior
therapies

- Evaluable Disease

- Age ≥18 years

- Eastern Cooperative Oncology Group (ECOG) performance status ≤2

- Patients must have adequate organ and marrow function as defined in the protocol

- Adequate Contraception

- Ability to understand and the willingness to sign a written informed consent document

- Inclusion Criteria for Multiple Myeloma patients specified in the protocol

Exclusion Criteria:

- Prior Therapy

- Exposure to chemotherapy or radiotherapy within 2 weeks (6 weeks for nitrosureas
or mitomycin C) prior to entering the study or those who have not recovered from
adverse events due to agents administered more than 2 weeks earlier

- Systemic steroids that have not been stabilized to the equivalent of ≤10 mg/day
prednisone prior to the start of the study drugs

- No other investigational agents are allowed

- Central nervous system metastases, including lymphomatous meningitis

- History of allergic reactions to Pralatrexate or Romidepsin

- Uncontrolled intercurrent illness

- Pregnant women

- Nursing women

- Current malignancy or history of a prior malignancy, as outlined in the protocol

- Patient known to be Human Immunodeficiency Virus (HIV)-positive

- Active Hepatitis A, Hepatitis B, or Hepatitis C infection