Daratumumab and Ibrutinib for the Treatment of Relapsed or Refractory Chronic Lymphocytic Leukemia, DIRECT Study

Recurrent Small Lymphocytic Lymphoma Clinical Trial

Official title: A Phase II Study of Daratumumab and Ibrutinib for Relapsed / Refractory Chronic Lymphocytic Leukemia Treatment (DIRECT)

Status Active, not recruiting

Clinical Trial Summary

This phase II trial studies how well daratumumab and ibrutinib work in treating patients with chronic lymphocytic leukemia that has come back (relapsed) or has not responded to previous treatment (refractory). Daratumumab is a monoclonal antibody which works with the body's immune system to destroy cancer cells. Ibrutinib may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth. Giving daratumumab and ibrutinib may work better in treating patients with chronic lymphocytic leukemia compared to ibrutinib alone.

Clinical Trial Description

PRIMARY OBJECTIVES:

I. Determine the overall response rate after 6 cycles of treatment with daratumumab in combination with ibrutinib in patients who are on /or are previously treated with ibrutinib. (Cohort 1) II. Determine the overall response rate after 6 cycles of treatment with daratumumab in combination with ibrutinib in patients who are naive to ibrutinib treatment. (Cohort 2)

SECONDARY OBJECTIVES:

I. Determine the best overall response rate to treatment with daratumumab plus ibrutinib at any time during the course of the therapy. (Cohort 1) II. The overall incidence of MRD (minimal residual disease) negative state and the time to achieving MRD negativity at any time during this therapy. (Cohort 1) III. Progression free survival (as determined by the International Workshop on Chronic Lymphocytic Leukemia [IWCLL] criteria) among all patients. (Cohort 1) IV. The overall toxicity profile of daratumumab/ibrutinib treatment in this group of patients. (Cohort 1) V. Determine the best overall response rate to treatment with daratumumab plus ibrutinib at any time during the course of the therapy. (Cohort 2) VI. The overall incidence of MRD (minimal residual disease) negative state and the time to achieving MRD negativity at any time during this therapy. (Cohort 2) VII. The overall toxicity profile of daratumumab/ibrutinib treatment in this group of patients. (Cohort 2)

OUTLINE:

Patients receive daratumumab intravenously (IV) on days 1, 8, 15, and 22 of cycles 1-2, on days 1 and 15 of cycles 3-6, and then on day 1 of subsequent cycles. Beginning in cycle 2, patients also receive ibrutinib orally (PO) once daily (QD) on days 1-28. Cycles repeat every 28 days in the absence of disease progression or unacceptable toxicity.

After completion of study registration, patients are followed up periodically for up to 5 years. ;

Related Conditions & MeSH terms

• Leukemia
• Leukemia, Lymphocytic, Chronic, B-Cell
• Leukemia, Lymphoid
• Lymphoma
• Recurrence
• Recurrent Chronic Lymphocytic Leukemia
• Recurrent Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma
• Recurrent Small Lymphocytic Lymphoma
• Refractory Chronic Lymphocytic Leukemia
• Refractory Small Lymphocytic Lymphoma

• NCT number: NCT04230304
• Study type: Interventional
• Source: Mayo Clinic
• Status: Active, not recruiting
• Phase: Phase 2
• Start date: September 16, 2020
• Completion date: February 28, 2026