A Study of the Safety and Pharmacokinetics of Escalating Doses of DCDT2980S in Patients With Relapsed or Refractory B-Cell Non-Hodgkin's Lymphoma and Chronic Lymphocytic Leukemia And DCDT2980S in Combination With Rituximab in Patients With Relapsed or Refractory B-Cell Non Hodgkin's Lymphoma

An Open-Label, Multicenter, Phase I Trial of the Safety and Pharmacokinetics of Escalating Doses of DCDT2980S in Patients With Relapsed or Refractory B-Cell Non-Hodgkin's Lymphoma and Chronic Lymphocytic Leukemia And DCDT2980S in Combination With Rituximab in Patients With Relapsed or Refractory B-Cell Non Hodgkin's Lymphoma

This is a Phase I, multicenter, open-label, dose-escalation study of DCDT2980S administered by intravenous (IV) infusion to patients with relapsed or refractory hematologic malignancies. In addition, at selected sites, DCDT2980S will be studied in combination with rituximab.

Inclusion Criteria:

• Life expectancy of at least 12 weeks
• History of histologically-documented hematologic malignancy for which no effective standard therapy exists: indolent NHL (including Grades 1-3a FL; MZL [including splenic, nodal, and extra-nodal]; and SLL), Grade 3b FL, DLBCL, MCL, or CLL
• Must have at least one bi-dimensionally measurable lesion

Exclusion Criteria:

• Prior use of any monoclonal antibody or antibody-drug conjugate within 4 weeks prior to study treatment
• Treatment with radiotherapy, any chemotherapeutic agent, or treatment with any other investigational anti-cancer agent within 2 weeks prior to of study treatment
• Completion of autologous stem cell transplant within 100 days prior to study treatment
• Prior allogeneic stem cell transplant