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

Active:	Yes
Cancer Type:	Leukemia Lymphoma	NCT ID:	NCT03420183
Trial Phases:	Phase I Phase II	Protocol IDs:	CIRM-0001 (primary) NCI-2018-00270
Eligibility:	18 Years and older, Male and Female	Study Type:	Treatment
Study Sponsor:	Oncternal Therapeutics, Inc
NCI Full Details:	http://clinicaltrials.gov/show/NCT03420183

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 cells to grow and survive. ROR1 is rarely found on healthy cells.

Objectives

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 MCL 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.

Treatment Sites in Georgia

Emory Saint Joseph's Hospital
5665 Peachtree Dunwoody Road NE
Atlanta, GA 30342
www.emoryhealthcare.org

Emory University Hospital - Midtown
550 Peachtree Street NE
Atlanta, GA 30308
404-686-4411
www.emoryhealthcare.org

Winship Cancer Institute of Emory University
1365 Clifton Road NE
Building C
Atlanta, GA 30322
winshipcancer.emory.edu

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