Testing Drug Treatments After CAR T-cell Therapy in Patients With Relapsed/Refractory Diffuse Large B-cell Lymphoma
A Randomized Phase II Trial of Consolidation Therapy Following CD19 CAR T-Cell Treatment for Relapsed/Refractory Diffuse Large B-Cell Lymphoma or Grade IIIB Follicular Lymphoma
3 other identifiers
interventional
396
1 country
87
Brief Summary
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 laboratory and given to the patient by infusion for treatment of certain cancers. Giving mosunetuzumab and/or polatuzumab vedotin after chemotherapy and CAR T-cell therapy may be more effective at controlling or shrinking the cancer than not giving them.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_2
Started Jun 2023
Longer than P75 for phase_2
87 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
November 21, 2022
CompletedFirst Posted
Study publicly available on registry
December 1, 2022
CompletedStudy Start
First participant enrolled
June 12, 2023
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 30, 2030
ExpectedStudy Completion
Last participant's last visit for all outcomes
June 30, 2030
February 2, 2026
January 1, 2026
7.1 years
November 21, 2022
January 30, 2026
Conditions
Outcome Measures
Primary Outcomes (1)
Progression free survival (PFS)
Will compare PFS in participants with relapsed/refractory large B-cell lymphoma or follicular lymphoma grade 3B with stable disease (SD) or partial remission (PR) on first imaging response (day +30 positron emission tomography \[PET\]/computed tomography \[CT\] scan) after commercial CD19 chimeric antigen receptor (CAR) T-cell therapy who are randomized to receive each consolidation therapy versus those that receive no consolidation therapy (i.e. control). Specifically, will compare the PFS of 1) mosunetuzumab consolidation to no consolidation, 2) polatuzumab vedotin consolidation to no consolidation, 3) mosunetuzumab + polatuzumab vedotin to no consolidation. Will analyze results by arm rather than assuming no-interactions in some factorial analyses. Will follow multi-step hypothesis testing procedure of Freidlin and Korn to compare the arms within this randomized Phase II study. Each of the primary comparisons has 81% power using a stratified logrank test at one-sided alpha of 0.05.
From date of randomization to date of first observation of progressive disease or death due to any cause, assessed up to 2 years
Secondary Outcomes (5)
Overall survival (OS)
From date of randomization to date of death due to any cause, assessed up to 2 years
Complete remission (CR) conversion rate
Up to 1 year after randomization
Incidence of adverse events
Up to 2 years
Association between total metabolic tumor volume (TMTV), standardized uptake value (SUV) max, and sum product (SPD) of diameters
Up to 2 years
Conversion of CR
Up to 2 years
Study Arms (5)
Step I (lymphodepleting chemotherapy)
EXPERIMENTALPatients receive lymphodepleting chemotherapy consisting of fludarabine IV and cyclophosphamide IV on study. Patients then receive tisagenlecleucel IV, axicabtagene ciloleucel IV, or lisocabtagene maraleucel IV on study.
Step II Arm I (mosunetuzumab)
EXPERIMENTALPatients receive mosunetuzumab IV on study. Patients also undergo PET-CT and/or CT and undergo collection of blood and tissue samples throughout the study.
Step II Arm II (polatuzumab vedotin)
EXPERIMENTALPatients receive polatuzumab vedotin IV on study. Patients also undergo PET-CT and/or CT and undergo collection of blood and tissue samples throughout the study.
Step II Arm III (polatuzumab vedotin, mosunetuzumab)
EXPERIMENTALPatients receive polatuzumab vedotin IV and mosunetuzumab IV on study. Patients also undergo PET-CT and/or CT and undergo collection of blood and tissue samples throughout the study.
Step II Arm IV (observation)
ACTIVE COMPARATORPatients undergo observation on study. Patients also undergo PET-CT and/or CT and undergo collection of blood and tissue samples throughout the study. Patients with subsequent progression within 12 months of CAR T-cell therapy may crossover to Arm III.
Interventions
Given IV
Undergo collection of blood and tissue samples
Undergo PET-CT or CT
Given IV
Given IV
Given IV
Undergo observation
Given IV
Undergo PET-CT
Given IV
Eligibility Criteria
You may qualify if:
- STEP 1: REGISTRATION: Participants must have a histologically confirmed diagnosis of diffuse large B-cell lymphoma or follicular lymphoma grade 3b or primary mediastinal large B-cell lymphoma (PMBCL)
- STEP 1: REGISTRATION: Participants with transformed DLBCL must have transformed DLBCL from follicular or marginal zone lymphoma
- STEP 1: REGISTRATION: Participant must have bi-dimensionally measurable systemic disease (at least one lesion with longest diameter \> 1.5 cm)
- STEP 1: REGISTRATION: Participants with secondary central nervous system (CNS) lymphoma (parenchymal, spinal cord, meningeal, cerebrospinal fluid involvement) must be asymptomatic from their CNS disease
- STEP 1: REGISTRATION: Participants must be registered for step 1 after they have signed institutional consent for CAR T-cell leukapheresis but prior to the start of lymphodepleting (LD) chemotherapy for commercial CAR T-cell product
- STEP 1: REGISTRATION: In the opinion of the enrolling physician, participants must be felt to be a candidate for CAR T-cell therapy with plans to be treated with Food and Drug Administration (FDA) approved commercially available CD19 CAR T-cell construct.
- Participants must qualify for commercially approved CD19 CAR T-cell therapy per FDA package insert.
- If the CAR T-cell product does not meet parameters to be given as an FDA approved product (i.e. does not meet specification criteria mandated by FDA and is infused under an expanded access protocol \[EAP\] or single participant investigational new drug \[IND\]) the participant will be taken off of study and no longer be eligible for step 2 randomization
- STEP 1: REGISTRATION: Participants are permitted to receive or have received 'bridging therapy' after CAR T-cell leukapheresis. However, participants must not receive polatuzumab vedotin, and/or mosunetuzumab as part of bridging therapy.
- Bridging therapy is defined as lymphoma directed therapy administered between leukapheresis and the start of LD chemotherapy. This includes cytotoxic chemotherapy (e.g.: bendamustine and rituximab \[BR\], rituximab, gemcitabine and oxaliplatin \[R-gem/ox\]), radiation, corticosteroids, as well as novel therapies such as BTK inhibitors (e.g.: Ibrutinib), immunomodulators (e.g.: lenalidomide), monoclonal antibodies (e.g.: rituximab, obinutuzumab, tafasitamab) antibody drug conjugates (e.g: loncastuximab), checkpoint inhibitors (e.g.: pembrolizumab, nivolumab), clinical trial treatments, etc.
- If a participant receives polatuzumab vedotin or mosunetuzumab as bridging they will ineligible to continue on step 1 registration portion of the study and be ineligible for step 2 randomization
- STEP 1: REGISTRATION: PET-CT scan must be planned for completion within 60 days prior to the start of LD chemotherapy.
- All pre-CAR T-cell therapy disease must be assessed and documented on the baseline/pre-registration tumor assessment form.
- If receiving bridging therapy, participants must have a PET-CT scan upon completion of all planned bridging therapy. If the PET-CT scan after completion of bridging therapy is consistent with complete remission per Lugano criteria as determined by enrolling physician, that participant will be ineligible for step 2 randomization.
- Participants are permitted to receive corticosteroids after leukapheresis without the need to repeat a PET-CT scan. If steroids are used, they must be planned to stop no later than 3 days before CAR -T cell infusion.
- +60 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- National Cancer Institute (NCI)collaborator
- SWOG Cancer Research Networklead
- Genentech, Inc.collaborator
Study Sites (87)
Banner University Medical Center - Tucson
Tucson, Arizona, 85719, United States
University of Arizona Cancer Center-North Campus
Tucson, Arizona, 85719, United States
Highlands Oncology Group - Fayetteville
Fayetteville, Arkansas, 72703, United States
University of Arkansas for Medical Sciences
Little Rock, Arkansas, 72205, United States
Highlands Oncology Group - Rogers
Rogers, Arkansas, 72758, United States
Highlands Oncology Group
Springdale, Arkansas, 72762, United States
UC Irvine Health Cancer Center-Newport
Costa Mesa, California, 92627, United States
UCI Health - Chao Family Comprehensive Cancer Center and Ambulatory Care
Irvine, California, 92612, United States
UCI Health Laguna Hills
Laguna Hills, California, 92653, United States
UC Irvine Health/Chao Family Comprehensive Cancer Center
Orange, California, 92868, United States
UCSF Medical Center-Parnassus
San Francisco, California, 94143, United States
UF Health Cancer Institute - Gainesville
Gainesville, Florida, 32610, United States
Emory University Hospital/Winship Cancer Institute
Atlanta, Georgia, 30322, United States
Emory Saint Joseph's Hospital
Atlanta, Georgia, 30342, United States
Saint Luke's Cancer Institute - Boise
Boise, Idaho, 83712, United States
Saint Luke's Cancer Institute - Fruitland
Fruitland, Idaho, 83619, United States
Saint Luke's Cancer Institute - Meridian
Meridian, Idaho, 83642, United States
Saint Luke's Cancer Institute - Nampa
Nampa, Idaho, 83687, United States
Saint Luke's Cancer Institute - Twin Falls
Twin Falls, Idaho, 83301, United States
University of Illinois
Chicago, Illinois, 60612, United States
University of Chicago Comprehensive Cancer Center
Chicago, Illinois, 60637, United States
Loyola University Medical Center
Maywood, Illinois, 60153, United States
University of Iowa/Holden Comprehensive Cancer Center
Iowa City, Iowa, 52242, United States
University of Kansas Cancer Center
Kansas City, Kansas, 66160, United States
University of Kansas Cancer Center-Overland Park
Overland Park, Kansas, 66210, United States
University of Kansas Hospital-Westwood Cancer Center
Westwood, Kansas, 66205, United States
The James Graham Brown Cancer Center at University of Louisville
Louisville, Kentucky, 40202, United States
UofL Health Medical Center Northeast
Louisville, Kentucky, 40245, United States
University of Maryland/Greenebaum Cancer Center
Baltimore, Maryland, 21201, United States
Johns Hopkins University/Sidney Kimmel Cancer Center
Baltimore, Maryland, 21287, United States
Bronson Battle Creek
Battle Creek, Michigan, 49017, United States
Wayne State University/Karmanos Cancer Institute
Detroit, Michigan, 48201, United States
Henry Ford Hospital
Detroit, Michigan, 48202, United States
Weisberg Cancer Treatment Center
Farmington Hills, Michigan, 48334, United States
Corewell Health Grand Rapids Hospitals - Butterworth Hospital
Grand Rapids, Michigan, 49503, United States
Trinity Health Grand Rapids Hospital
Grand Rapids, Michigan, 49503, United States
Bronson Methodist Hospital
Kalamazoo, Michigan, 49007, United States
West Michigan Cancer Center
Kalamazoo, Michigan, 49007, United States
Beacon Kalamazoo Cancer Center
Kalamazoo, Michigan, 49009, United States
Trinity Health Muskegon Hospital
Muskegon, Michigan, 49444, United States
Corewell Health Lakeland Hospitals - Niles Hospital
Niles, Michigan, 49120, United States
Cancer and Hematology Centers of Western Michigan - Norton Shores
Norton Shores, Michigan, 49444, United States
Corewell Health Reed City Hospital
Reed City, Michigan, 49677, United States
Corewell Health Lakeland Hospitals - Marie Yeager Cancer Center
Saint Joseph, Michigan, 49085, United States
Henry Ford Health Providence Southfield Hospital
Southfield, Michigan, 48075, United States
Munson Medical Center
Traverse City, Michigan, 49684, United States
University of Michigan Health - West
Wyoming, Michigan, 49519, United States
Dartmouth Hitchcock Medical Center/Dartmouth Cancer Center
Lebanon, New Hampshire, 03756, United States
University of New Mexico Cancer Center
Albuquerque, New Mexico, 87106, United States
NYP/Columbia University Medical Center/Herbert Irving Comprehensive Cancer Center
New York, New York, 10032, United States
NYP/Weill Cornell Medical Center
New York, New York, 10065, United States
University of Rochester
Rochester, New York, 14642, United States
Wilmot Cancer Institute at Webster
Webster, New York, 14580, United States
Carolinas Medical Center/Levine Cancer Institute
Charlotte, North Carolina, 28203, United States
Atrium Health Cabarrus/LCI-Concord
Concord, North Carolina, 28025, United States
Duke University Medical Center
Durham, North Carolina, 27710, United States
Wake Forest University Health Sciences
Winston-Salem, North Carolina, 27157, United States
Sanford Broadway Medical Center
Fargo, North Dakota, 58122, United States
Sanford Roger Maris Cancer Center
Fargo, North Dakota, 58122, United States
Case Western Reserve University
Cleveland, Ohio, 44106, United States
University of Oklahoma Health Sciences Center
Oklahoma City, Oklahoma, 73104, United States
Providence Newberg Medical Center
Newberg, Oregon, 97132, United States
Providence Willamette Falls Medical Center
Oregon City, Oregon, 97045, United States
Providence Portland Medical Center
Portland, Oregon, 97213, United States
Providence Saint Vincent Medical Center
Portland, Oregon, 97225, United States
Oregon Health and Science University
Portland, Oregon, 97239, United States
Geisinger Medical Center
Danville, Pennsylvania, 17822, United States
University of Pennsylvania/Abramson Cancer Center
Philadelphia, Pennsylvania, 19104, United States
Geisinger Wyoming Valley/Henry Cancer Center
Wilkes-Barre, Pennsylvania, 18711, United States
Prisma Health Cancer Institute - Spartanburg
Boiling Springs, South Carolina, 29316, United States
Medical University of South Carolina
Charleston, South Carolina, 29425, United States
Prisma Health Cancer Institute - Easley
Easley, South Carolina, 29640, United States
Prisma Health Cancer Institute - Butternut
Greenville, South Carolina, 29605, United States
Prisma Health Cancer Institute - Faris
Greenville, South Carolina, 29605, United States
Prisma Health Cancer Institute - Eastside
Greenville, South Carolina, 29615, United States
Prisma Health Cancer Institute - Greer
Greer, South Carolina, 29650, United States
Prisma Health Cancer Institute - Seneca
Seneca, South Carolina, 29672, United States
Baptist Memorial Hospital and Cancer Center-Memphis
Memphis, Tennessee, 38120, United States
University of Vermont Medical Center
Burlington, Vermont, 05401, United States
University of Vermont and State Agricultural College
Burlington, Vermont, 05405, United States
Dartmouth Cancer Center - North
Saint Johnsbury, Vermont, 05819, United States
VCU Massey Comprehensive Cancer Center
Richmond, Virginia, 23298, United States
Swedish Medical Center-First Hill
Seattle, Washington, 98122, United States
University of Wisconsin Carbone Cancer Center - Eastpark Medical Center
Madison, Wisconsin, 53718, United States
University of Wisconsin Carbone Cancer Center - University Hospital
Madison, Wisconsin, 53792, United States
Medical College of Wisconsin
Milwaukee, Wisconsin, 53226, United States
Froedtert and MCW Moorland Reserve Health Center
New Berlin, Wisconsin, 53151, United States
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Brian T Hess
SWOG Cancer Research Network
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- NETWORK
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
November 21, 2022
First Posted
December 1, 2022
Study Start
June 12, 2023
Primary Completion (Estimated)
June 30, 2030
Study Completion (Estimated)
June 30, 2030
Last Updated
February 2, 2026
Record last verified: 2026-01