A Study of Cirmtuzumab and Ibrutinib in Patients With B-Cell Lymphoid Malignancies

Small Lymphocytic Lymphoma Clinical Trial

Official title: A Phase 1b-2 Study of the ROR1-Targeting Monoclonal Antibody, Cirmtuzumab, and the Bruton Tyrosine Kinase Inhibitor, Ibrutinib, in Patients With B-Cell Lymphoid Malignancies

Status Recruiting

Clinical Trial Summary

This is a Phase 1b/2 study to investigate the safety and effectiveness of the investigational drug, cirmtuzumab, when given in combination with ibrutinib in patients with B-cell lymphoid malignancies. Cirmtuzumab is a monoclonal antibody that attaches to a protein (called ROR1) that is found on hematologic tumor cells. ROR1 has been shown to play a role in cell signaling that cause leukemia and lymphoma cells to grow and survive. ROR1 is rarely found on healthy cells.

Clinical Trial Description

This is a Phase 1b/2 study to investigate the safety and effectiveness of the investigational drug, cirmtuzumab, when given in combination with ibrutinib in patients with B-cell lymphoid malignancies. The Phase 1b will be conducted in two parts (Part 1 and Part 2). Part 1 is a dose-finding evaluation of the sequential administration of cirmtuzumab monotherapy followed by cirmtuzumab and ibrutinib combination therapy in chronic lymphocytic leukemia/small lymphocytic leukemia (CLL/SLL) or or previously treated mantle cell lymphoma (MCL) subjects who have not received prior Bruton tyrosine kinase (BTK) inhibitor therapy. Up to 48 subjects will be enrolled in Part 1 to determine the recommended dosing regimen (RDR). In Part 2, up to 18 subjects will be enrolled to further evaluate the safety and pharmacology of the cirmtuzumab and ibrutinib combination given at the RDR determined in Part 1 of the study. In the Phase 2 (Part 3) portion of the study, approximately 90 subjects with CLL will be randomized to either Arm 1 (cirmtuzumab and ibrutinib) at the RDR or Arm 2 (ibrutinib alone) to evaluate the clinical activity and safety of the two arms. ;

Related Conditions & MeSH terms

• B-cell Chronic Lymphocytic Leukemia
• Leukemia
• Leukemia, Lymphocytic, Chronic, B-Cell
• Leukemia, Lymphoid
• Lymphoma
• Lymphoma, Mantle-Cell
• Mantle-cell Lymphoma
• Small Lymphocytic Lymphoma

• NCT number: NCT03420183
• Study type: Interventional
• Source: Oncternal Therapeutics, Inc
• Contact: Xen Ianopulos, MD, PhD
• Phone: 206-434-0133
• Email: xengia@oncternal.com
• Status: Recruiting
• Phase: Phase 1/Phase 2
• Start date: February 13, 2018
• Completion date: December 1, 2022