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Testing the Combination of Venetoclax and Rituximab, in Comparison to the Usual Treatment (Ibrutinib Plus Rituximab or Zanubrutinib Alone) for Waldenstrom's Macroglobulinemia/Lymphoplasmacytic Lymphoma

  • PhasePhase 2
  • StatusRecruiting
  • Planned enrollment92 people
  • Recruiting US sites106
  • SponsorNational Cancer Institute (NCI)
  • RegistryNCT04840602

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

Testing the Combination of Venetoclax and Rituximab, in Comparison to the Usual Treatment (Ibrutinib Plus Rituximab or Zanubrutinib Alone) for Waldenstrom's Macroglobulinemia/Lymphoplasmacytic Lymphoma: a one-minute explainerNCT048406021 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 had a confirmed diagnosis of Waldenstrom's macroglobulinemia (WM)/lymphoplasmacytic lymphoma (LPL). Participants must have measurable disease as determined by IgM protein quantification.
  • IgM Spike: ≥ 500 mg/dL (≥ 5 g/L)
  • Extramedullary disease: The manifestation of a lymphoid mass outside of the bone marrow, resulting in enlargement in extramedullary organs such as the lymph nodes or spleen. Note: all participants must have measurable IgM spike, but are not required to have extramedullary disease
  • Testing to establish baseline disease status must be performed within 28 days prior to registration
  • Participants must have at least one of the criteria to require therapy for WM including:
  • Anemia
  • Thrombocytopenia
  • Neuropathy related to WM
  • Symptomatic hyperviscosity or serum viscosity levels ≥ 4.0 centipoises
  • WM associated glomerulonephritis or renal disease, bulky disease, or constitutional symptoms
  • Constitutional symptoms can be described as:
  • Unintentional weight loss >= 10% within the previous 6 months prior to screening
  • Fevers higher than 100.5 degrees Fahrenheit (F) or 38.0 degrees Celsius (C) for 2 or more weeks prior to screening without evidence of infection
  • Night sweats for more than 1 month prior to screening without evidence of infection
  • Clinically relevant fatigue which is not relieved by rest due to WM
  • Participants who require ongoing use or received a moderate or strong CYP3A inducer, moderate or strong CYP3A inhibitor, P-gp inhibitor within 7 days prior to the first dose of study drug will be excluded from the study. If such participants can be safely switched to an alternative agent, then the participants will be eligible to enroll
  • Participants must not have had prior systemic therapy. Prior therapy with rituximab will be allowed as long as the last rituximab dose was at least 6 months prior to registration
  • Participants must be >= 18 years of age
  • Participants must have history and physical exam within 28 days prior to registration
  • Participants must have Zubrod performance status =< 2
  • Participants must have evidence of adequate renal function, as defined by creatinine clearance (CrCl) >= 30 mL/min. Values must be obtained within 14 days prior to registration
  • Total bilirubin =< 1.5 x IULN (institutional upper limit of the norm) (within 14 days prior to registration)
  • Aspartate aminotransferase (AST), alanine aminotransferase (ALT) =< 3 x IULN (within 14 days prior to registration)
  • Alkaline phosphatase =< 3 x IULN (within 14 days prior to registration)
  • Platelet count >= 50,000 cells/mm^3 (within 14 days prior to registration)
  • NOTE: Transfusion and/or growth factor support is allowed up to 7 days prior to registration
  • Hemoglobin >= 7.0 g/dL (within 14 days prior to registration)
  • NOTE: Transfusion and/or growth factor support is allowed up to 7 days prior to registration
  • Absolute neutrophil count (ANC) >= 1,000 cells/mm^3 (within 14 days prior to registration)
  • NOTE: Transfusion and/or growth factor support is allowed up to 7 days prior to registration
  • Participants with known human immunodeficiency virus (HIV)-infection are eligible providing they are on effective anti-retroviral therapy and have undetectable viral load at their most recent viral load test and within 6 months prior to registration
  • Participants must be able to take and swallow oral medication (capsules) whole. Participants may not have any known impairment of gastrointestinal function or gastrointestinal disease that may significantly alter the absorption of the study drug (e.g. ulcerative disease, uncontrolled nausea, vomiting, diarrhea, malabsorption syndrome, or small bowel resection)
  • Participants must not be intolerant to rituximab
  • Participants must not have known active bacterial, viral, fungal, mycobacterial, parasitic, or other infection (excluding localized skin and nail bed fungal infections) at study enrollment, or any major episode of infection requiring treatment with IV antibiotics or hospitalization (relating to the completion of the course of antibiotics) 4 weeks prior to registration
  • Participants must not be seropositive for hepatitis C (except in the setting of sustained virologic response, defined as undetectable viral load at least 12 weeks after completion of antiviral therapy). Hepatitis C virus (HCV) testing is only required if clinically indicated or if the participant has a history of HCV
  • Participants must not consume grapefruit, Seville oranges or starfruit within 3 days prior to the first dose of venetoclax
  • Participants must not be pregnant or nursing because venetoclax has not been studied in pregnant or nursing women and the mechanism of action is expected to cause fetal harm. A woman is considered to be of "reproductive potential" if she has had menses at any time in the preceding 12 consecutive months. In addition to routine contraceptive methods, "effective contraception" e.g., implants, injectables, combined oral contraceptives, some intrauterine devices [IUDs], complete abstinence, or sterilized partner) and a barrier method (e.g., condom, cervical ring, sponge, etc.). This also includes heterosexual celibacy and surgery intended to prevent pregnancy (or with a side-effect of pregnancy prevention) defined as a hysterectomy, bilateral oophorectomy or bilateral tubal ligation. However, if at any point a previously celibate participant chooses to become heterosexually active during the time period for use of contraceptive measures outlined in the protocol, he/she is responsible for beginning contraceptive measures throughout the study and for at least 30 days after competition of therapy
  • No other prior malignancy is allowed except for the following: adequately treated basal cell or squamous cell skin cancer, in situ cervical cancer, adequately treated stage I or II cancer from which the participant is currently in complete remission, or any other cancer from which the participant has been disease free for two years or watchful waiting is appropriate in the opinion of the treating physician. Also, malignancy that in the opinion of the investigator, is considered cured with minimal risk of recurrence within 5 years, is permissible consideration of eligibility for this trial
  • Participants must be offered the opportunity to participate in specimen banking
  • 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
  • As a part of the Oncology Participant Enrollment Network (OPEN) registration process the treating institution's identity is provided in order to ensure that the current (within 365 days) date of institutional review board approval for this study has been entered in the system
  • CROSSOVER CRITERIA: Participants must have been registered and received treatment in the IR/Z or VR arm and must show progression of disease at any time during cycles 3-24
  • CROSSOVER CRITERIA: In case of transformation to intermediate or high-grade lymphoma or development of Bing-Neel syndrome the participants will not undergo registration step 2 crossover and will be taken off the study
  • CROSSOVER CRITERIA: Participants must have Zubrod performance status =< 2
  • CROSSOVER CRITERIA: Participants must have evidence of adequate renal function, as defined by creatinine clearance (CrCl) >= 30 mL/min. Values must be obtained within 14 days prior to registration
  • CROSSOVER CRITERIA: Participants must have no evidence of marked hepatic dysfunction on any recent liver function tests within 14 days prior to registration
  • CROSSOVER CRITERIA: Platelet count >= 50,000 cells/mm^3 (without within 14 days prior to registration)
  • NOTE: Transfusion and/or growth factor support is allowed up to 7 days prior to registration
  • CROSSOVER CRITERIA: Hemoglobin >= 7.0 g/dL (without within 14 days prior to registration)
  • NOTE: Transfusion and/or growth factor support is allowed up to 7 days prior to registration
  • CROSSOVER CRITERIA: Absolute neutrophil count (ANC) >= 1,000 cells/mm^3 (without within 14 days prior to registration)
  • NOTE: Transfusion and/or growth factor support is allowed up to 7 days prior to registration

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.

Treatments listed in the registry

  • Biospecimen Collection (Procedure): Undergo blood sample collection
  • Bone Marrow Aspiration (Procedure): Undergo bone marrow biopsy and aspiration
  • Bone Marrow Biopsy (Procedure): Undergo bone marrow biopsy and aspiration
  • Computed Tomography (Procedure): Undergo CT or PET/CT
  • Ibrutinib (Drug): Given PO
  • Positron Emission Tomography (Procedure): Undergo PET/CT
  • Rituximab (Biological): Given IV
  • Venetoclax (Drug): Given PO
  • Zanubrutinib (Drug): Given PO

The study

Treatment groups

Randomized · Crossover · masking: None

Arm I (ibrutinib + rituximab or zanubrutinib) (Active Comparator)

Patients receive ibrutinib PO QD on days 1-28 of cycles 1-24 and rituximab IV on days 1, 8, 15, and 22 of cycles 2 and 5, or zanubrutinib PO QD or BID on days 1-28 of cycles 1-24. Cycles repeat every 28 days for up to 24 cycles in the absence of disease progression or unacceptable toxicity. Patients with progressive disease during Arm I may receive rituximab and venetoclax as in Arm II for up to an additional 24 cycles. Patients undergo CT or PET/CT and bone marrow biopsy and aspiration as well as blood sample collection throughout the trial.

Arm II (venetoclax, rituximab) (Experimental)

Patients receive venetoclax PO QD on days 1-28 of each cycle and rituximab IV on days 1, 8, 15, and 22 of cycles 2 and 5. Cycles repeat every 28 days for up to 24 cycles in the absence of disease progression or unacceptable toxicity. Patients with progressive disease during Arm II may receive ibrutinib and rituximab as in Arm I for up to an additional 24 cycles. Patients undergo CT or PET/CT and bone marrow biopsy and aspiration as well as blood sample collection throughout the trial.

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.

  • biopsy: Part of the study plan
  • bone marrow: Part of the study plan
  • blood samples: Part of the study plan
  • CT scans: Part of the study plan
  • PET scans: Part of the study plan

Goals

What the study measures

Main goals

  • Very good partial response or better (VGPR or better) rate (Up to 5 years)

Other goals

  • Progression-free survival
  • Overall survival
  • Rate of complete response
  • Overall response rate
  • Time to VGPR or better
  • Incidence of adverse events

Planned enrollment: 92 (estimated).

Where

Recruiting US sites

  • Banner University Medical Center - Tucson, Tucson, Arizona
  • University of Arizona Cancer Center-North Campus, Tucson, Arizona
  • City of Hope at Irvine Lennar, Irvine, California
  • UM Sylvester Comprehensive Cancer Center at Coral Gables, Coral Gables, Florida
  • UM Sylvester Comprehensive Cancer Center at Coral Springs, Coral Springs, Florida
  • UM Sylvester Comprehensive Cancer Center at Deerfield Beach, Deerfield Beach, Florida
  • UM Sylvester Comprehensive Cancer Center at Doral, Doral, Florida
  • UM Sylvester Comprehensive Cancer Center at Hollywood, Hollywood, Florida
  • Mayo Clinic in Florida, Jacksonville, Florida
  • University of Miami Miller School of Medicine-Sylvester Cancer Center, Miami, Florida
  • UM Sylvester Comprehensive Cancer Center at Kendall, Miami, Florida
  • University of Miami Sylvester Comprehensive Cancer Center at Sole Mia, North Miami, Florida
  • UM Sylvester Comprehensive Cancer Center at Plantation, Plantation, Florida
  • Saint Alphonsus Cancer Care Center-Boise, Boise, Idaho
  • Saint Alphonsus Cancer Care Center-Caldwell, Caldwell, Idaho
  • Idaho Urologic Institute-Meridian, Meridian, Idaho
  • Saint Alphonsus Cancer Care Center-Nampa, Nampa, Idaho
  • Centralia Oncology Clinic, Centralia, Illinois
  • Carle at The Riverfront, Danville, Illinois
  • Cancer Care Specialists of Illinois - Decatur, Decatur, Illinois
  • Carle Physician Group-Effingham, Effingham, Illinois
  • Crossroads Cancer Center, Effingham, Illinois
  • Carle Physician Group-Mattoon/Charleston, Mattoon, Illinois
  • Loyola University Medical Center, Maywood, Illinois
  • Cancer Care Center of O'Fallon, O'Fallon, Illinois
  • Southern Illinois University School of Medicine, Springfield, Illinois
  • Springfield Clinic, Springfield, Illinois
  • Springfield Memorial Hospital, Springfield, Illinois
  • Carle Cancer Center, Urbana, Illinois
  • Mary Greeley Medical Center, Ames, Iowa
  • McFarland Clinic - Ames, Ames, Iowa
  • McFarland Clinic - Trinity Cancer Center, Fort Dodge, Iowa
  • McFarland Clinic - Marshalltown, Marshalltown, Iowa
  • Lahey Clinic, Burlington, Massachusetts
  • 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
  • Henry Ford Cancer Institute-Downriver, Brownstown, 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
  • Hematology Oncology Consultants-Clarkston, Clarkston, Michigan
  • Henry Ford Macomb Hospital-Clinton Township, Clinton Township, Michigan
  • Henry Ford Medical Center-Fairlane, Dearborn, Michigan
  • Wayne State University/Karmanos Cancer Institute, Detroit, Michigan
  • Henry Ford Hospital, Detroit, Michigan
  • Weisberg Cancer Treatment Center, Farmington Hills, Michigan
  • Cancer Hematology Centers - Flint, Flint, Michigan
  • Genesys Hurley Cancer Institute, Flint, Michigan
  • Hurley Medical Center, Flint, Michigan
  • Allegiance Health, Jackson, Michigan
  • University of Michigan Health - Sparrow Lansing, Lansing, Michigan
  • Trinity Health Saint Mary Mercy Livonia Hospital, Livonia, Michigan
  • Henry Ford Medical Center-Columbus, Novi, Michigan
  • Michigan Healthcare Professionals Pontiac, Pontiac, Michigan
  • Trinity Health IHA Medical Group-Alice Gustafson Center, Pontiac, Michigan
  • Trinity Health Saint Joseph Mercy Oakland Hospital, Pontiac, Michigan
  • MyMichigan Medical Center Saginaw, Saginaw, Michigan
  • MyMichigan Medical Center Tawas, Tawas City, Michigan
  • Henry Ford West Bloomfield Hospital, West Bloomfield, Michigan
  • Henry Ford Wyandotte Hospital, Wyandotte, Michigan
  • Huron Gastroenterology PC, Ypsilanti, Michigan
  • Trinity Health IHA Medical Group Hematology Oncology Ann Arbor Campus, Ypsilanti, Michigan
  • Mercy Hospital, Coon Rapids, Minnesota
  • Minnesota Oncology - Edina, Edina, Minnesota
  • Abbott-Northwestern Hospital, Minneapolis, Minnesota
  • Hennepin County Medical Center, Minneapolis, Minnesota
  • Mayo Clinic in Rochester, Rochester, Minnesota
  • Park Nicollet Clinic - Saint Louis Park, Saint Louis Park, Minnesota
  • Regions Hospital, Saint Paul, Minnesota
  • United Hospital, Saint Paul, Minnesota
  • Saint Francis Medical Center, Cape Girardeau, Missouri
  • Heartland Regional Medical Center, Saint Joseph, Missouri
  • Mercy Hospital South, St Louis, Missouri
  • Saint Vincent Frontier Cancer Center, Billings, Montana
  • Memorial Sloan Kettering Basking Ridge, Basking Ridge, New Jersey
  • Memorial Sloan Kettering Monmouth, Middletown, New Jersey
  • Memorial Sloan Kettering Bergen, Montvale, New Jersey
  • Memorial Sloan Kettering Commack, Commack, New York
  • Memorial Sloan Kettering Westchester, Harrison, New York
  • Memorial Sloan Kettering Cancer Center, New York, New York
  • University of Rochester, Rochester, New York
  • Memorial Sloan Kettering Nassau, Uniondale, New York
  • Wilmot Cancer Institute at Webster, Webster, New York
  • Carolinas Medical Center/Levine Cancer Institute, Charlotte, North Carolina
  • Southeastern Medical Oncology Center-Clinton, Clinton, North Carolina
  • Levine Cancer Institute-Gaston, Gastonia, North Carolina
  • Southeastern Medical Oncology Center-Goldsboro, Goldsboro, North Carolina
  • Southeastern Medical Oncology Center-Jacksonville, Jacksonville, North Carolina
  • Atrium Health Union/LCI-Union, Monroe, North Carolina
  • Licking Memorial Hospital, Newark, Ohio
  • Saint Alphonsus Cancer Care Center-Baker City, Baker City, Oregon
  • Providence Newberg Medical Center, Newberg, Oregon
  • Saint Alphonsus Cancer Care Center-Ontario, Ontario, Oregon
  • Providence Willamette Falls Medical Center, Oregon City, Oregon
  • Providence Portland Medical Center, Portland, Oregon
  • Providence Saint Vincent Medical Center, Portland, Oregon
  • VCU Massey Comprehensive Cancer Center, Richmond, Virginia
  • Swedish Cancer Institute-Edmonds, Edmonds, Washington
  • Swedish Cancer Institute-Issaquah, Issaquah, Washington
  • Swedish Medical Center-First Hill, Seattle, Washington
  • ThedaCare Regional Cancer Center, Appleton, Wisconsin
  • Gundersen Lutheran Medical Center, La Crosse, Wisconsin
  • Marshfield Medical Center-River Region at Stevens Point, Stevens Point, 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 25, 2026. Public record; not medical advice.

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