- Subjects must have relapsed/refractory leukemia or lymphoma for which no standard therapies are anticipated to result in a durable remission. Relapsed/refractory leukemia/lymphoma includes acute leukemia, chronic myeloproliferative disease, chronic lymphoproliferative disease, multiple myeloma, and any type of lymphoma. Subjects with poor-risk myelodysplasia (MDS) are also candidates for this protocol. Poor risk MDS includes refractory anemia with excess blasts or excess blasts in transformation, and chronic myelomonocytic leukemia.