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Study Adding Drugs to Usual Treatment for Large B-Cell Lymphoma That Returned or Did Not Respond to Treatment

  • PhasePhase 2
  • StatusRecruiting
  • Planned enrollment227 people
  • Recruiting US sites99
  • SponsorSWOG Cancer Research Network
  • RegistryNCT05890352

Recruitment re-checked on ClinicalTrials.gov Oct 30, 2026. Public record; not medical advice.

Study Adding Drugs to Usual Treatment for Large B-Cell Lymphoma That Returned or Did Not Respond to Treatment: a one-minute explainerNCT058903521 min

Eligibility

Who can join

The film gives the main points. The full list below is copied from the registry; the study team makes the final decision.

  • Age18 Years to no maximum
  • SexAll
  • Healthy volunteersNo

You may be able to join if

  • Participants must have:
  • Histologically confirmed relapsed/refractory LBCL as outlined by the World Health Organization (WHO) guidelines
  • Follicular lymphoma, grade 3B
  • Transformed lymphoma
  • High grade B-cell lymphoma with or without MYC, BCL2 and/or BCL6 rearrangements
  • Participants must have staging imaging performed within 28 days prior to registration, as follows. Positron emission tomography (PET)-computed tomography (CT) baseline scans are strongly preferred; diagnostic quality magnetic resonance imaging (MRI), contrast-enhanced CT, or contrast-enhanced MRI scans are also acceptable if PET-CT is not feasible at baseline. Note: PET-CT will be required at end of treatment (EOT) and progression for response assessment. All measurable lesions (longest diameter >= 1.5 cm) must be assessed within 28 days prior to registration. Tests to assess non-measurable disease must be performed within 28 days prior to registration. All disease must be documented on the Baseline Tumor Assessment Form.
  • Participants must have cell of origin (COO) determination of germinal center (GC)(GCB or non-GC GCB) of LBCL based on Hans immunohistochemistry algorithm (CD10, BCL6, MUM1) as noted on pathology report.
  • Participants must have had 1-5 prior systemic treatment regimens including one systemic multiagent regimen for aggressive lymphoma
  • Participants who have received prior systemic therapy must have completed their last treatment prior to registration. Participants must have recovered from previous therapy
  • Steroid use for the control of non-Hodgkin lymphoma symptoms is allowable, but must be discontinued prior to Cycle 1, Day 1
  • Participant must be >= 18 years old
  • Participant must have Zubrod Performance Status of 0-3
  • Participant must have a complete medical history and physical exam within 28 days prior to registration
  • Absolute neutrophil count >= 1.0 x 10^3/uL (within 28 days prior to registration)
  • If there is documented lymphomatous involvement of the bone marrow as assessed by bone marrow biopsy within 90 days prior to registration, participants must have: Absolute neutrophil count (ANC) >= 0.75 x 10^3/uL
  • Platelets >= 75 x 10^3/uL (within 28 days prior to registration)
  • If there is documented lymphomatous involvement of the bone marrow as assessed by bone marrow biopsy within 90 days prior to registration, participants must have: Platelets >= 50 x 10^3/uL
  • Aspartate aminotransferase (AST) =< 3 x institutional upper limit of normal (IULN), alanine aminotransferase (ALT) =< 3 x IULN (within 28 days prior to registration) unless due to Gilbert's disease, hemolysis, or lymphomatous involvement of liver.
  • Participants with lymphomatous involvement of the liver must have AST =< 5 x IULN, ALT =< 5 x IULN
  • Total bilirubin =< 1.5 x IULN (within 28 days prior to registration) unless due to Gilbert's disease, hemolysis, or lymphomatous involvement of liver.
  • Participants with lymphomatous involvement of the liver must have total bilirubin =< 5 x IULN
  • Participants must have a calculated creatinine clearance >= 30 mL/min using the following Cockcroft-Gault Formula. This specimen must have been drawn and processed within 28 days prior to registration
  • Participants with known history or current symptoms of cardiac disease, or history of treatment with cardiotoxic agents, should have a clinical risk assessment of cardiac function using the New York Heart Association Functional Classification. To be eligible for this trial, patients should be class 2B or better
  • Participants must have recovered from adverse events due to prior anti-cancer therapy (i.e., have residual toxicities > Grade 1) with the exception of alopecia
  • Participants with known human immunodeficiency virus (HIV)-infection must be on effective anti-retroviral therapy at randomization and have undetectable viral load test on the most recent test results obtained within 6 months prior to registration
  • Participants with evidence of chronic hepatitis B virus (HBV) infection must have undetectable HBV viral load on the most recent test results obtained within the last year and received suppressive therapy
  • Participants with a history of hepatitis C virus (HCV) infection must have an undetectable viral load. Participants currently being treated for HCV infection must have undetectable HCV viral load test on the most recent test results obtained within 28 days prior to registration
  • Participants must be able to swallow and retain orally administered medication and does not have any clinically significant gastrointestinal abnormalities that may alter absorption, such as malabsorption syndrome or major resection of the stomach or bowels
  • Participants must be offered the opportunity to participate in specimen banking. With participant consent, specimens must be collected and submitted via the Southwest Oncology Group (SWOG) Specimen Tracking System
  • Participants who can complete the FACT-Lym and PRO-CTCAE forms in English or Spanish must agree to participate in the patient-reported outcome study
  • Participants must be informed of the investigational nature of this study and must sign and give informed consent in accordance with institutional and federal guidelines.
  • For participants with impaired decision-making capabilities, legally authorized representatives may sign and give informed consent on behalf of study participants in accordance with applicable federal, local, and central institutional review board (CIRB) regulations.

You cannot join if

  • Participants must not have active lymphomatous involvement of the central nervous system (CNS) because the treatments used in this study are not effective to sufficiently penetrate the blood brain barrier
  • Participants must not have known abnormalities associated with myelodysplastic syndrome (MDS) (e.g., del 5q, chr 7 abn) and myeloproliferative neoplasms (MPN) (e.g., JAK2 V617F) observed in cytogenetic testing and deoxyribonucleic acid (DNA) sequencing. Testing is not required for eligibility determination
  • Participants must not have a known prior history of T-cell lymphoblastic lymphoma (T-LBL)/T-cell acute leukemia (T-ALL). Testing is not required for eligibility determination
  • Participants must not be a candidate based on investigator assessment to receive autologous stem cell transplant (ASCT) or must have declined ASCT. Participants who had disease progression after stem cell transplant or cellular therapy (such as chimeric antigen receptor (CAR) T-cell) are eligible
  • Participants must not have received prior treatment with tafasitamab and/or lenalidomide
  • Participants must not have had prior BTK inhibitor or tazemetostat
  • Participants must not have any known allergy or reaction to any component of tafasitamab, lenalidomide, tazemetostat or zanubrutinib
  • Participants must not be receiving direct vitamin K inhibitors or strong or moderate CYP3A inhibitors or inducers at the date of registration
  • Notes: Because the list of these agents is constantly changing, it is important to regularly consult a frequently updated medical reference
  • Participants must not have a prior or concurrent malignancy whose natural history or treatment (in the opinion of the treating physician) has the potential to interfere with the safety or efficacy assessment of the investigational regimen
  • Participants must not be pregnant or nursing and must follow the guidelines according to the lenalidomide Risk Evaluation and Mitigation Strategies (REMS) program. The effects of tazemetostat, zanubrutinib, lenalidomide and tafasitamab, and the combination of these drugs have not been studied on the developing human fetus are the effects are unknown. Individuals who are of reproductive potential must have agreed to use a highly effective contraceptive method with details provided as a part of the consent process. A person who has had menses at any time in the preceding 12 consecutive months or who has semen likely to contain sperm is considered to be of "reproductive potential". In addition to routine contraceptive methods, "acceptable contraception" also includes refraining from sexual activity that might result in pregnancy and surgery intended to prevent pregnancy (or with a side-effect of pregnancy prevention) including hysterectomy, bilateral oophorectomy, bilateral tubal ligation/occlusion, and vasectomy with testing showing no sperm in the semen

The treatment

How it is intended to work

This is how the treatment is meant to work. Whether it helps, and how safe it is, is what this trial is testing.

tazemetostat hydrobromide. The hydrobromide salt form of tazemetostat, an orally available, small molecule selective and S-adenosyl methionine (SAM) competitive inhibitor of histone methyl transferase EZH2, with potential antineoplastic activity. Upon oral administration, tazemetostat selectively inhibits the activity of both wild-type and mutated forms of EZH2. Inhibition of EZH2 specifically prevents the methylation of histone H3 lysine 27 (H3K27). This decrease in histone methylation alters gene expression patterns associated with cancer pathways and results in decreased tumor cell proliferation in EZH2 mutated cancer cells. EZH2, which belongs to the class of histone methyltransferases (HMTs), is overexpressed or mutated in a variety of cancer cells and plays a key role in tumor cell proliferation. NCI Drug Dictionary

zanubrutinib. An inhibitor of Bruton's tyrosine kinase (BTK) with potential antineoplastic activity. Upon administration, zanubrutinib inhibits the activity of BTK and prevents the activation of the B-cell antigen receptor (BCR) signaling pathway. This prevents both B-cell activation and BTK-mediated activation of downstream survival pathways, which leads to the inhibition of the growth of malignant B-cells that overexpress BTK. BTK, a member of the Src-related BTK/Tec family of cytoplasmic tyrosine kinases, is overexpressed in B-cell malignancies; it plays an important role in B-lymphocyte development, activation, signaling, proliferation and survival. NCI Drug Dictionary

Treatments listed in the registry

  • Biospecimen Collection (Procedure): Undergo optional collection of blood
  • Computed Tomography (Procedure): Undergo PET/CT and CT
  • Lenalidomide (Drug): Given PO
  • Magnetic Resonance Imaging (Procedure): Undergo MRI
  • Positron Emission Tomography (Procedure): Undergo PET/CT
  • Quality-of-Life Assessment (Other): Ancillary studies
  • Questionnaire Administration (Other): Ancillary studies
  • Tafasitamab (Biological): Given IV
  • Tazemetostat (Drug): Given PO
  • Zanubrutinib (Drug): Given PO

The study

Treatment groups

Randomized · Sequential · masking: None

Part I, Arm I (tafasitamab, lenalidomide, tazemetostat) (Experimental)

Patients receive tafasitamab IV, lenalidomide PO, and tazemetostat PO on study. Patients also undergo PET/CT and CT or MRI scans throughout the trial. Patients also have the option to undergo collection of blood samples during screening and on study.

Part I, Arm III (tafasitamab, lenalidomide, zanubrutinib) (Experimental)

Patients receive tafasitamab IV, lenalidomide PO, and zanubrutinib PO on study. Patients also undergo PET/CT and CT or MRI scans throughout the trial. Patients also have the option to undergo collection of blood samples during screening and on study.

Part II, Arm I (tafasitamab, lenalidomide, tazemetostat) (Experimental)

Patients receive tafasitamab IV, lenalidomide PO, and tazemetostat PO on study. Patients also undergo PET/CT and CT or MRI scans throughout the trial. Patients also have the option to undergo collection of blood samples during screening and on study.

Part II, Arm II (tafasitamab, lenalidomide) (Active Comparator)

Patients receive tafasitamab IV and lenalidomide PO on study. Patients also undergo PET/CT and CT or MRI scans throughout the trial. Patients also have the option to undergo collection of blood samples during screening and on study.

Part II, Arm III (tafasitamab, lenalidomide, zanubrutinib) (Experimental)

Patients receive tafasitamab IV, lenalidomide PO, and zanubrutinib PO on study. Patients also undergo PET/CT and CT or MRI scans throughout the trial. Patients also have the option to undergo collection of blood samples during screening and on study.

What it involves

Procedures

As the registry describes them. Requirements to join, such as a tissue sample, are in the eligibility list above even when on-study procedures are optional. Ask the study team which steps apply to you.

  • blood samples: Part of the study plan
  • CT scans: Part of the study plan; some time points described as optional
  • MRI: Part of the study plan; some time points described as optional
  • PET scans: Part of the study plan; some time points described as optional
  • questionnaires: Part of the study plan

Goals

What the study measures

Main goals

  • Progression-free survival (PFS) (From date of randomization to date of first observation of progressive disease according to the 2014 Lugano classification, or death due to any cause, assessed up to 3 years)
  • Trial Outcome Index (TOI) score from the Functional Assessment of Cancer Therapy-Lymphoma (FACT-Lym) (Patient Reported Outcome [PRO] Study) (Baseline up to 3 months after randomization)

Other goals

  • Hazard ratio for PFS in the germinal center B-cell (GCB) subgroup
  • Hazard ratio for PFS in the non-GCB subgroup
  • PFS
  • Overall response rate (ORR)
  • Complete response (CR) rate
  • Partial response (PR) rate
  • Duration of response (DOR)
  • Event free survival (EFS)
  • Overall survival (OS)
  • Incidence of adverse events

Planned enrollment: 227 (estimated).

Where

Recruiting US sites

  • Banner University Medical Center - Tucson, Tucson, Arizona
  • University of Arizona Cancer Center-North Campus, Tucson, Arizona
  • Tower Cancer Research Foundation, Beverly Hills, California
  • City of Hope Comprehensive Cancer Center, Duarte, California
  • City of Hope Seacliff, Huntington Beach, California
  • City of Hope Antelope Valley, Lancaster, California
  • City of Hope at Long Beach Elm, Long Beach, California
  • Cedars Sinai Medical Center, Los Angeles, California
  • City of Hope Newport Beach, Newport Beach, California
  • City of Hope South Pasadena, South Pasadena, California
  • City of Hope South Bay, Torrance, California
  • City of Hope Upland, Upland, California
  • Holy Cross Hospital, Fort Lauderdale, Florida
  • University of Illinois, Chicago, Illinois
  • University of Chicago Comprehensive Cancer Center, Chicago, Illinois
  • Carle at The Riverfront, Danville, Illinois
  • Carle Physician Group-Effingham, Effingham, Illinois
  • Carle Physician Group-Mattoon/Charleston, Mattoon, Illinois
  • UC Comprehensive Cancer Center at Silver Cross, New Lenox, Illinois
  • University of Chicago Medicine-Orland Park, Orland Park, Illinois
  • Memorial Hospital East, Shiloh, Illinois
  • Carle Cancer Center, Urbana, Illinois
  • Northwest Cancer Center - Main Campus, Crown Point, Indiana
  • Northwest Oncology LLC, Dyer, Indiana
  • Northwest Cancer Center - Hobart, Hobart, Indiana
  • Saint Mary Medical Center, Hobart, Indiana
  • Saint Catherine Hospital, Indianapolis, Indiana
  • The Community Hospital, Munster, Indiana
  • Women's Diagnostic Center - Munster, Munster, Indiana
  • Northwest Cancer Center - Valparaiso, Valparaiso, Indiana
  • Mercy Hospital, Cedar Rapids, Iowa
  • Oncology Associates at Mercy Medical Center, Cedar Rapids, Iowa
  • Mercy Medical Center - Des Moines, Des Moines, Iowa
  • Trinity Health Saint Joseph Mercy Hospital Ann Arbor, Ann Arbor, Michigan
  • Trinity Health IHA Medical Group Hematology Oncology - Brighton, Brighton, Michigan
  • Trinity Health Medical Center - Brighton, Brighton, Michigan
  • Trinity Health IHA Medical Group Hematology Oncology - Canton, Canton, Michigan
  • Trinity Health Medical Center - Canton, Canton, Michigan
  • Chelsea Hospital, Chelsea, Michigan
  • Trinity Health IHA Medical Group Hematology Oncology - Chelsea Hospital, Chelsea, Michigan
  • Cancer Hematology Centers - Flint, Flint, Michigan
  • Genesys Hurley Cancer Institute, Flint, Michigan
  • Hurley Medical Center, Flint, Michigan
  • University of Michigan Health - Sparrow Lansing, Lansing, Michigan
  • Trinity Health Saint Mary Mercy Livonia Hospital, Livonia, Michigan
  • Trinity Health Saint Joseph Mercy Oakland Hospital, Pontiac, Michigan
  • Huron Gastroenterology PC, Ypsilanti, Michigan
  • Trinity Health IHA Medical Group Hematology Oncology Ann Arbor Campus, Ypsilanti, Michigan
  • Essentia Health - Deer River Clinic, Deer River, Minnesota
  • Essentia Health Cancer Center, Duluth, Minnesota
  • Essentia Health Hibbing Clinic, Hibbing, Minnesota
  • Essentia Health Sandstone, Sandstone, Minnesota
  • Essentia Health Virginia Clinic, Virginia, Minnesota
  • University of Mississippi Medical Center, Jackson, Mississippi
  • Siteman Cancer Center at Saint Peters Hospital, City of Saint Peters, Missouri
  • Siteman Cancer Center at West County Hospital, Creve Coeur, Missouri
  • Washington University School of Medicine, St Louis, Missouri
  • Siteman Cancer Center-South County, St Louis, Missouri
  • Siteman Cancer Center at Christian Hospital, St Louis, Missouri
  • NYP/Columbia University Medical Center/Herbert Irving Comprehensive Cancer Center, New York, New York
  • University of Rochester, Rochester, New York
  • Wilmot Cancer Institute at Webster, Webster, New York
  • University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
  • Providence Newberg Medical Center, Newberg, Oregon
  • Providence Willamette Falls Medical Center, Oregon City, Oregon
  • Providence Portland Medical Center, Portland, Oregon
  • Providence Saint Vincent Medical Center, Portland, Oregon
  • Medical University of South Carolina, Charleston, South Carolina
  • Baylor College of Medicine/Dan L Duncan Comprehensive Cancer Center, Houston, Texas
  • Ben Taub General Hospital, Houston, Texas
  • University of Texas Health Science Center at San Antonio, San Antonio, Texas
  • Huntsman Cancer Institute/University of Utah, Salt Lake City, Utah
  • VCU Massey Cancer Center at Stony Point, Richmond, Virginia
  • VCU Massey Comprehensive Cancer Center, Richmond, Virginia
  • ThedaCare Regional Cancer Center, Appleton, Wisconsin
  • Duluth Clinic Ashland, Ashland, Wisconsin
  • Aurora Cancer Care-Southern Lakes VLCC, Burlington, Wisconsin
  • Marshfield Medical Center-EC Cancer Center, Eau Claire, Wisconsin
  • Aurora Health Care Germantown Health Center, Germantown, Wisconsin
  • Aurora Cancer Care-Grafton, Grafton, Wisconsin
  • Aurora BayCare Medical Center, Green Bay, Wisconsin
  • Aurora Cancer Care-Kenosha South, Kenosha, Wisconsin
  • Gundersen Lutheran Medical Center, La Crosse, Wisconsin
  • Aurora Bay Area Medical Group-Marinette, Marinette, Wisconsin
  • Marshfield Medical Center-Marshfield, Marshfield, Wisconsin
  • Aurora Cancer Care-Milwaukee, Milwaukee, Wisconsin
  • Aurora Saint Luke's Medical Center, Milwaukee, Wisconsin
  • Aurora Sinai Medical Center, Milwaukee, Wisconsin
  • Marshfield Medical Center - Minocqua, Minocqua, Wisconsin
  • Vince Lombardi Cancer Clinic - Oshkosh, Oshkosh, Wisconsin
  • Aurora Cancer Care-Racine, Racine, Wisconsin
  • Marshfield Medical Center-Rice Lake, Rice Lake, Wisconsin
  • Vince Lombardi Cancer Clinic-Sheboygan, Sheboygan, Wisconsin
  • Marshfield Medical Center-River Region at Stevens Point, Stevens Point, Wisconsin
  • Aurora Medical Center in Summit, Summit, Wisconsin
  • Vince Lombardi Cancer Clinic-Two Rivers, Two Rivers, Wisconsin
  • Aurora Cancer Care-Milwaukee West, Wauwatosa, Wisconsin
  • Aurora West Allis Medical Center, West Allis, Wisconsin
  • Marshfield Medical Center - Weston, Weston, Wisconsin

Site status as of Oct 30, 2026. Check the live record before contacting a site.

Sources

Where this comes from

Registry record reviewed as fetched Oct 30, 2026, last updated by the sponsor Oct 27, 2026. Public record; not medical advice.

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