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Study identifier: NCT05633615 Synced from ClinicalTrials.gov · July 28, 2026
● Recruiting

Testing Drug Treatments After CAR T-cell Therapy in Patients With Relapsed/Refractory Diffuse Large B-cell Lymphoma

Condition: Diffuse Large B-Cell Lymphoma · Grade 3b Follicular Lymphoma · Primary Mediastinal (Thymic) Large B-Cell Lymphoma  ·  Sponsor: SWOG Cancer Research Network

PhasePhase 2
Planned participants396
Who can joinAll sexes, 18 Years to no upper limit
Healthy volunteersNo

About this study

This phase II trial tests whether mosunetuzumab and/or polatuzumab vedotin helps benefit patients who have received chemotherapy (fludarabine and cyclophosphamide) followed by chimeric antigen receptor (CAR) T-cell therapy (tisagenlecleucel, axicabtagene ciloleucel, or lisocabtagene maraleucel) for diffuse large B-cell lymphoma that has come back (recurrent) or that does not respond to treatment (refractory) or grade IIIb follicular lymphoma. Mosunetuzumab is a monoclonal antibody that may interfere with the ability of cancer cells to grow and spread. Polatuzumab vedotin is a monoclonal antibody, called polatuzumab, linked to a drug called vedotin. Polatuzumab is a form of targeted therapy because it attaches to specific molecules (receptors) on the surface of cancer cells, and delivers vedotin to kill them. Chemotherapy drugs, such as fludarabine and cyclophosphamide, work in different ways to stop the growth of cancer cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. CAR T-cell therapy is a type of treatment in which a patient's T cells (a type of immune system cell) are changed in the laboratory so they will attack cancer cells. T cells are taken from a patient's blood. Then the gene for a special receptor that binds to a certain protein on the patient's cancer cells is added to the T cells in the laboratory. The special receptor is called a chimeric antigen receptor. Large numbers of the CAR T cells are grown in the la…

This description comes directly from the study's public registry record.

Talk to the study team

Erin Rogers  ·  210-614-8808  ·  erogers@swog.org

Dana Sparks  ·  210-614-8808  ·  dsparks@swog.org

Always discuss trial participation with your own doctor first.

Locations (87)

Banner University Medical Center - TucsonTucson, Arizona, United StatesRecruiting
University of Arizona Cancer Center-North CampusTucson, Arizona, United StatesRecruiting
Highlands Oncology Group - FayettevilleFayetteville, Arkansas, United StatesRecruiting
University of Arkansas for Medical SciencesLittle Rock, Arkansas, United StatesRecruiting
Highlands Oncology Group - RogersRogers, Arkansas, United StatesRecruiting
Highlands Oncology GroupSpringdale, Arkansas, United StatesRecruiting
UC Irvine Health Cancer Center-NewportCosta Mesa, California, United StatesRecruiting
UCI Health - Chao Family Comprehensive Cancer Center and Ambulatory CareIrvine, California, United StatesRecruiting
UCI Health Laguna HillsLaguna Hills, California, United StatesRecruiting
UC Irvine Health/Chao Family Comprehensive Cancer CenterOrange, California, United StatesRecruiting
UCSF Medical Center-ParnassusSan Francisco, California, United StatesRecruiting
UF Health Cancer Institute - GainesvilleGainesville, Florida, United StatesRecruiting

+ 75 more locations — full list on the registry record.

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Source record: clinicaltrials.gov/study/NCT05633615