This phase II trial tests the effectiveness of odronextamab given before chimeric antigen receptor T (CAR-T) cell therapy (bridging therapy) in patients with large B-cell lymphomas that have come back after a period of improvement (relapsed) or that have not responded to previous treatment (refractory). Odronextamab is a bispecific antibody that can bind to two different antigens at the same time. Odronextamab binds to CD3, a T-cell surface antigen, and CD20 (a tumor-associated antigen that is expressed on B-cells during most stages of B-cell development and is often overexpressed in B-cell cancers) and may interfere with the ability of cancer cells to grow and spread. Bridging therapy has been used to maintain disease control and to increase the chance of successful receipt of CAR-T cell therapy. However, bridging therapy is typically given after leukapheresis, which does not help prevent disease progression between the decision for CAR-T cell therapy and leukapheresis. Giving odronextamab as bridging therapy before leukapheresis may delay disease progression to allow leukapheresis and increase the likelihood of successful CAR-T cell therapy in patients with relapsed or refractory large B-cell lymphomas.
Additional locations may be listed on ClinicalTrials.gov for NCT06784726.
Locations matching your search criteria
United States
Washington
Seattle
Fred Hutch/University of Washington/Seattle Children's Cancer ConsortiumStatus: Active
Contact: Mengyang Di
Phone: 206-606-2509
PRIMARY OBJECTIVE:
I. To estimate the rate of patients who fail to receive leukapheresis due to disease progression or adverse events due to odronextamab (Odron) as bridging therapy to chimeric antigen receptor T cell therapy (CAR-T), or require other lymphoma-directed therapy for bridging before leukapheresis due to lack of disease response.
SECONDARY OBJECTIVES:
I. To estimate the rate of receipt of CART.
II. To estimate the overall response rate (complete response [CR], partial response [PR], stable disease [SD]) following bridging prior to CAR-T infusion.
III. To examine the progression free survival (PFS) following CAR-T infusion.
IV. To determine the CR rate at one month after CAR-T.
V. To estimate the PFS in patients who achieve CR prior to leukapheresis, choose to opt out of CART, and receive up to a total of 12 months of Odron.
VI. To examine the safety including cytokine release syndrome (CRS)/immune effector cell-associated neurotoxicity syndrome (ICANS) and successful production of CAR-T product.
TERTIARY/EXPLORATORY OBJECTIVE:
I. To describe the duration of response (DOR) following CAR-T, cytokine profiling, T cell subset, T cell exhaustion markers, characteristics of both the tumor and tumor microenvironment, and patient reported outcomes (PRO) on health-related quality of life (HRQoL) and cognitive function.
OUTLINE:
Patients receive odronextamab intravenously (IV) on days 1, 2, 8, 9, 15 and 16 of cycle 1 (dose step-up), and on days 1, 8 and 15 of cycles 2-4 and then once every other week of remaining cycles. Cycles repeat every 21 days for the first 4 cycles, then every other week for up to a total of 12 months (including the first 2 cycles). After 2 cycles, patients undergo leukapheresis followed by lymphodepletion and CAR-T infusion per standard of care. If there is a significant delay of leukapheresis, patients may receive up to 12 additional weeks of treatment. Patients who achieve CR after cycle 2 may opt out of leukapheresis and CAR-T cell infusion and may continue to receive odronextamab in the absence of disease progression or unacceptable toxicity. Patients undergo positron emission tomography (PET)/computed tomography (CT), collection of blood and oral or rectal swab samples and tissue biopsy throughout the study. Additionally, patients may undergo lumbar puncture and bone marrow aspiration and/or biopsy on study.
After completion of study treatment, patients are followed for 90 days or until the initiation of the next lymphoma directed therapy for toxicity check and for up to 5 years.
Lead OrganizationFred Hutch/University of Washington/Seattle Children's Cancer Consortium
Principal InvestigatorMengyang Di