ClinicalTrials.gov record NCT06859008

Zanubrutinib in Combination With Sonrotoclax for the Treatment of Underrepresented Ethnic and Racial Minorities With Relapsed or Refractory B-cell Non-Hodgkin Lymphoma

Record copied from ClinicalTrials.gov: Oct 10, 2026AI summaries generated: Sep 17, 2026

Feasibility of Treating Relapsed/Refractory B-Cell Non-Hodgkin Lymphoma With Zanubrutinib in Combination With the BCL2 Inhibitor, Sonrotoclax, Focusing on Access for Underrepresented Ethnic/Racial Minorities

StatusRecruitingThe study is currently enrolling participants. Only the study team can say whether a particular person can join.
Study typeInterventionalA study in which researchers assign participants to one or more interventions, such as a drug, procedure, device, behavioural programme or other approach, to measure their effects.
PhasePhase 1An early-stage study, usually small, mainly to check safety, side effects and how much of a treatment can be given. Whether it works is not the main question yet.
Age18 years old and older
SexAll
LocationUnited States
AI summaryWhat this study is about, in plain languageShow ▾Hide ▴

AI-written from the registry record, not the study's own wording. May contain errors or omissions. Check the registry text on this page and the original record ↗ before acting on it.

This phase 1 study tests zanubrutinib together with sonrotoclax in underrepresented racial and ethnic minorities with relapsed or refractory B‑cell non‑Hodgkin lymphoma. Participants take zanubrutinib daily, with sonrotoclax added starting in cycle 3; cycles repeat every 28 days. The study includes blood and urine samples, imaging (CT or MRI), possible biopsies and bone marrow procedures, questionnaires, and follow‑up for up to three years.

What it is studying. The study is testing whether zanubrutinib followed by the addition of sonrotoclax can be given and tolerated in underrepresented racial and ethnic minority patients with relapsed or refractory B‑cell non‑Hodgkin lymphoma. It also collects safety data and measures of treatment activity (responses and survival).

What the researchers hope to learn. Primary goals: assess feasibility of completing the zanubrutinib lead‑in and sonrotoclax ramp‑up, and assess retention through two cycles of combination therapy. Secondary goals: assess safety and tolerability; estimate overall response rate (ORR) and complete response (CR) rate; estimate time to response, progression‑free survival (PFS), and overall survival (OS). Exploratory goals: collect demographic data related to health care disparities; estimate minimal residual disease (MRD) rate for CLL/SLL; assess mobile phlebotomy feasibility for the first 7 patients; evaluate the relationship between a comorbidity score (Tres) and outcomes; and assess patient‑reported quality of life and perceptions of trial participation and barriers.

What this study is about

The study's own summary, as published on ClinicalTrials.gov. Underlined terms have a short explanation.

This phase I trial tests zanubrutinib in combination with sonrotoclax for treating underrepresented ethnic and racial minorities with B-cell non-Hodgkin lymphoma that has come back after a period of improvement (relapsed) or that has not responded to previous treatment (refractory). Many racial and ethnic minorities face additional treatment challenges which may lead to poorer outcomes, however, there are fewer racial and ethnic minorities participating in clinical trials. Zanubrutinib, a type of tyrosine kinase inhibitor, blocks a protein called Bruton tyrosine kinase (BTK), which may help keep cancer cells from growing. Sonrotoclax works by blocking a protein called B-cell lymphoma-2 (Bcl-2). This protein helps certain types of blood cancer cells to survive and grow. When sonrotoclax blocks Bcl-2, it slows down or stops the growth of cancer cells and causes them to die. Zanubrutinib and sonrotoclax have been shown to be an effective treatment for B-cell cancers. Giving zanubrutinib in combination with sonrotoclax may be effective in treating ethnic and racial minorities with relapsed or refractory B-cell non-Hodgkin lymphoma.

Interventions being studied

Being studied in this trial does not mean the treatment or procedure is approved or available for this condition.

Drug
  • Sonrotoclax
  • Zanubrutinib
Procedure
  • Biopsy
  • Biospecimen Collection
  • Bone Marrow Aspiration
  • Bone Marrow Biopsy
  • Computed Tomography
  • Magnetic Resonance Imaging

Eligibility

The criteria exactly as listed on ClinicalTrials.gov. Only the study team can say whether they apply to you.

Inclusion criteria

  • Documented informed consent of the participant and/or legally authorized representative
  • Assent, when appropriate, will be obtained per institutional guidelines
  • Age: ≥ 18 years on the day of signing the informed consent form
  • Eastern Cooperative Oncology Group (ECOG) ≤ 2
  • Patients are of the following self-identified racial/ethnic groups:
  • Cohort 1: Patients in any of the following categories:
  • Black or African American
  • Hispanic or Latino
  • American Indian/Native Alaskan
  • Pacific Islander/Native Hawaiian
  • Any other patient that does not fit the definition of Cohort 2
  • Cohort 2: Patients in either of following categories:
  • Non-Hispanic White
  • Non-Hispanic Asian
  • Confirmed diagnosis (per World Health Organization [WHO] guidelines, unless otherwise noted) of one of the following disease subtypes. Note that for disease subtypes that are known to respond to BTK inhibitor (BTKi) and/or BCL2 inhibitor (BCL2i) (e.g., marginal zone lymphoma [MZL], mantle cell lymphoma [MCL], CLL/SLL), newly diagnosed or r/r patients are allowed
  • Diffuse large B cell lymphoma (DLBCL)
  • R/R DLBCL (including all subtypes of DLBCL) defined as disease that relapsed after, or was refractory to, at least 2 prior lines of therapy. Patients should be considered by the investigator to be refractory to or not a candidate for approved therapies with proven efficacy including but not limited to chimeric antigen receptor (CAR) T cell therapy or bispecific antibody therapy
  • Active disease requiring treatment
  • Follicular lymphoma (FL)
  • R/R FL (grade 1, 2 or 3a based on WHO 2008 classification of tumors of hematopoietic and lymphoid tissue) and defined as disease that relapsed after, or was refractory to, at least 1 prior systemic therapy. Patients should be considered by the investigator for all approved therapies with proven efficacy including but not limited to CAR T cell therapy or bispecific antibody therapy
  • Active disease requiring treatment
  • Marginal zone lymphoma (MZL)
  • R/R extranodal, splenic, or nodal MZL defined as disease that relapsed after, or was refractory to, at least 1 prior therapy
  • Active disease requiring treatment
  • Mantle cell lymphoma (MCL)
  • R/R MCL defined as disease that relapsed after, or was refractory to, at least 1 prior systemic therapy
  • Requiring treatment in the opinion of the investigator
  • Chronic lymphocytic leukemia/small lymphocytic leukemia (CLL/SLL)
  • CLL/SLL diagnosis that meets the International Workshop on CLL (International Workshop on Chronic Lymphocytic Leukemia [IWCLL]) criteria
  • Patients with previously untreated and/or r/r CLL defined as disease that relapsed after, or was refractory to, at least 1 prior therapy will be included
  • Patients must have an indication to start treatment
  • Measurable disease, defined as:
  • CLL: at least 1 lymph node > 1.5 cm in longest diameter and measurable in 2 perpendicular dimensions by computed tomography (CT)/magnetic resonance imaging (MRI) or clonal lymphocytes measured by flow cytometry
  • DLBCL, FL, MZL, MCL, or SLL: at least 1 lymph node > 1.5 cm in longest diameter OR 1 extranodal lesion > 1.0 cm in the longest diameter, measurable in 2 perpendicular dimensions by CT/MRI. For MZL, isolated splenomegaly is considered measurable for this study. For MCL, clonal lymphocytes measured by flow cytometry is considered measurable
  • Life expectancy of ≥ 6 months
  • Without bone marrow involvement: Absolute neutrophil count (ANC) ≥ 1,000/mm\^3
  • NOTE: Growth factor is not permitted within 7 days of ANC assessment unless cytopenia is secondary to disease involvement
  • With bone marrow involvement: ANC ≥ 500/mm\^3
  • NOTE: Growth factor is not permitted within 7 days of ANC assessment unless cytopenia is secondary to disease involvement
  • Without bone marrow involvement: Platelets ≥ 75,000/mm\^3
  • NOTE: Platelet transfusions are not permitted within 7 days of platelet assessment unless cytopenia is secondary to disease involvement
  • With bone marrow involvement: Platelets ≥ 30,000/mm\^3
  • NOTE: Platelet transfusions are not permitted within 7 days of platelet assessment unless cytopenia is secondary to disease involvement
  • Hemoglobin ≥ 7g/dL
  • NOTE: Red blood cell transfusions are not permitted within 7 days of hemoglobin assessment unless cytopenia is secondary to disease involvement
  • Total bilirubin ≤ 1.5 x upper limit of normal (ULN) (unless has Gilbert's disease)
  • Aspartate aminotransferase (AST) ≤ 2.5 x ULN
  • Alanine aminotransferase (ALT) ≤ 2.5 x ULN
  • Creatinine clearance of ≥ 30 mL/min per 24 hour urine test or the Cockcroft-Gault formula
  • Fridericia's formula-corrected QT interval (QTcF) ≤ 480 ms
  • Note: Performed within 28 days prior to day 1 of protocol therapy
  • Seronegative for HIV antigen (Ag)/antibody (Ab) combo, hepatitis C virus (HCV), active hepatitis B virus (HBV) (surface antigen negative) OR
  • If seropositive for HIV, HCV or HBV, nucleic acid quantitation must be performed. Viral load must be undetectable
  • HIV-infected patients on effective anti-retroviral therapy with undetectable viral load within 6 months are eligible for this trial
  • Meets other institutional and federal requirements for infectious disease titer requirements
  • Note Infectious disease testing to be performed within 28 days prior to day 1 of protocol therapy
  • Women of childbearing potential (WOCBP): Negative urine or serum pregnancy test
  • If the urine test is positive or cannot be confirmed as negative, a serum pregnancy test will be required
  • Agreement by females and males of childbearing potential to use an effective method of birth control or abstain from heterosexual activity for the course of the study through at least 90 days after the last dose of protocol therapy
  • Childbearing potential defined as not being surgically sterilized (men and women) or have not been free from menses for > 1 year (women only)

Exclusion criteria

  • Major surgery ≤ 4 weeks of the first dose of study drug
  • Prior autologous stem cell transplant unless ≥ 30 days after transplant; or prior chimeric antigen receptor T cell (CAR-T) therapy unless ≥ 30 days after cell infusion
  • Prior allogeneic stem cell transplant with active graft-versus-host disease (GVHD), or requiring immunosuppressive drugs for treatment of GVHD, or have taken calcineurin inhibitors within 4 weeks prior to consent
  • Prior therapy ≥ 2 months with or progression on a Bcl2 inhibitor (eg, venetoclax)
  • Vaccination or requirement for vaccination with a live vaccine within 35 days prior to the first dose of study drug or at any time during planned study treatment
  • Requires ongoing treatment with a strong CYP3A inducer
  • Requires ongoing treatment with warfarin or warfarin derivatives
  • Concurrent participation in another therapeutic clinical trial
  • Use of the following substances prior to the first dose of study drug:
  • ≤ 28 days before first dose of study drug: Any biologic and/or immunologic-based therapy(ies) including experimental therapy(ies) for leukemia, lymphoma, or myeloma (including, but not limited to, monoclonal antibody therapy, eg, rituximab, and/or cancer vaccine therapy)
  • ≤ 14 days before the first dose of study drug: systemic chemotherapy or radiation therapy
  • ≤ 7 days before the first dose of study drug: corticosteroid given with antineoplastic intent other than control of BTK inhibitor withdrawal flare
  • ≤ 5 half-lives before the first dose of study drug: BTK inhibitor, tyrosine kinase inhibitor, or other targeted small molecule given with antineoplastic intent
  • Known current central nervous system involvement by lymphoma/leukemia
  • Known plasma cell neoplasm, prolymphocytic leukemia, history of or currently suspected Richter's syndrome
  • Any uncontrolled or clinically significant cardiovascular disease including the following:
  • Myocardial infarction (MI) within 6 months before screening
  • NYHA (New York Heart Association) heart failure class III-IV
  • Unstable angina within 3 months before screening
  • History of clinically significant arrhythmias (e.g., sustained ventricular tachycardia, ventricular fibrillation, torsades de pointes)
  • History of Mobitz II second-degree or third-degree heart block without a permanent pacemaker in place
  • Prior malignancy within the past 3 years, except for curatively treated basal or squamous cell skin cancer, non-muscle-invasive bladder cancer, carcinoma in situ of the cervix or breast, or localized Gleason score 6 prostate cancer
  • History of severe bleeding disorder such as hemophilia A, hemophilia B, von Willebrand disease, or history of spontaneous bleeding requiring blood transfusion or other medical intervention
  • History of stroke or intracranial hemorrhage within 6 months before first dose of study drug
  • Severe or debilitating pulmonary disease
  • Unable to swallow capsules or disease significantly affecting gastrointestinal function such as malabsorption syndrome, resection of the stomach or small bowel, bariatric surgery procedures, symptomatic inflammatory bowel disease, or partial or complete bowel obstruction
  • Active fungal, bacterial and/or viral infection requiring systemic therapy
  • Underlying medical conditions that, in the investigator's opinion, will render the administration of study drugs hazardous or obscure the interpretation of toxicity or adverse events (AEs)
  • Known active infection with HIV, or serologic status reflecting active hepatitis B or C infection as follows:
  • Presence of hepatitis B surface antigen (HBsAg) or hepatitis B core antibody (HBcAb). Patients with presence of HBcAb, but absence of HBsAg, are eligible if hepatitis B virus (HBV) deoxyribonucleic acid (DNA) is undetectable (< 20 IU), and if they are willing to undergo monitoring every 4 weeks for HBV reactivation
  • Presence of hepatitis C virus (HCV) antibody. Patients with presence of HCV antibody are eligible if HCV ribonucleic acid (RNA) is undetectable
  • Any condition which in the discretion of the investigator would compromise the ability to comply with study procedures
  • History of allergic reactions attributed to compounds of similar chemical or biologic composition to the study agents
  • Active and/or ongoing autoimmune anemia and/or autoimmune thrombocytopenia (e.g., idiopathic thrombocytopenia purpura)
  • Females only: Pregnant or breastfeeding
  • Prospective participants who, in the opinion of the investigator, may not be able to comply with all study procedures (including compliance issues related to feasibility/logistics)

Study description and what participation involves

The study's detailed description, as published on ClinicalTrials.gov.

Show the detailed description from the registry

PRIMARY OBJECTIVES: I. Assess the feasibility of completing zanubrutinib lead-in and sonrotoclax ramp up in underrepresented minorities with relapsed/refractory (r/r) B cell non-Hodgkin lymphoma (B-NHL). II. Assess the feasibility of patient retention through 2 cycles of combination therapy at a steady dose in underrepresented minorities with r/r B-NHL. SECONDARY OBJECTIVES: I. Assess safety and tolerability. II. Estimate overall response rate (ORR). III. Estimate complete response (CR) rate. IV. Estimate time to response. V. Estimate progression free survival (PFS). VI. Estimate overall survival (OS). EXPLORATORY OBJECTIVES: I. Assess demographics potentially related to health care disparities including the highest level of education within the home, primary language spoken by patient, distance from patient's home to treating institution, time from diagnosis of r/r B-NHL until seen at trial center and socioeconomic status by zip code of participant. II. Estimate minimum residual disease (MRD) rate for patients with chronic lymphocytic leukemia (CLL)/small cell leukemia (SLL) only. III. For the first 7 patients only: assess feasibility of using mobile phlebotomy for blood sample collection. IV. Evaluate the relationship between three-factor risk estimate scale (Tres) comorbidity score and survival outcomes. V. Assess patient-reported quality-of-life outcomes. VI. Assess patient-reported perceptions of clinical trial participation and barriers. OUTLINE: Patients receive zanubrutinib orally (PO) once daily (QD) on days 1-28 of each cycle. Starting with cycle 3, patients also receive sonrotoclax PO QD on days 1-28 of each cycle. Cycles repeat every 28 days for up to 28 cycles in the absence of disease progression or unacceptable toxicity. Patients also undergo urine and blood sample collection, and computed tomography (CT) or magnetic resonance imaging (MRI) throughout the study. Additionally, patients may undergo biopsy at progression and bone marrow aspiration and biopsy throughout the study. After completion of study treatment, patients are followed up at 30 days then every 3 months for up to 3 years.

AI summaryWhat participation may involve, in plain languageShow ▾Hide ▴

AI-written from the registry record, not the study's own wording. May contain errors or omissions. Check the registry text on this page and the original record ↗ before acting on it.

You would take zanubrutinib by mouth once daily in 28‑day cycles; starting with cycle 3 you would also take sonrotoclax by mouth once daily. Cycles repeat every 28 days for up to 28 cycles unless the disease progresses or unacceptable toxicity occurs. During the study you will have urine and blood sample collection, CT or MRI scans, questionnaires about quality of life and trial participation, and you may have a biopsy if your disease progresses. Some participants may have bone‑marrow aspiration and biopsy; for the first seven participants the study may try mobile phlebotomy (home blood draws). After treatment ends there is a follow‑up visit at 30 days and then every 3 months for up to 3 years.

How the study is structured. This is an open (non‑masked), single‑group, phase 1 treatment study. Participants take zanubrutinib by mouth daily on days 1–28 of each 28‑day cycle. Starting with cycle 3, sonrotoclax is taken by mouth daily on days 1–28 as well. Treatment may continue for up to 28 cycles if there is no disease progression or unacceptable toxicity. The study involves urine and blood sample collection, CT or MRI scans, possible biopsy at progression, possible bone marrow aspiration and biopsy, and questionnaires. After treatment ends, patients are followed 30 days later and then every 3 months for up to 3 years. The first 7 patients will also be assessed for feasibility of mobile phlebotomy.

Questions you could ask

These questions are suggestions for a conversation with the study team or your own clinician, not advice.

  • This is an early-phase study, mainly about safety and dose. What is already known about this treatment?
  • The listed sites are in United States. Is any of them reachable for me, and does the study help with travel?
  • Which of the eligibility criteria would need to be checked with tests before I could join?

More on splenic marginal zone lymphoma

Important dates

Study start
Aug 25, 2025
Primary completion
Jan 31, 2029 (estimated)
Study completion
Jan 31, 2029 (estimated)
Target enrollment
37 participants (estimated)
Last updated on registry
Apr 20, 2026
Data verified
Oct 10, 2026

Sponsor and research team

The lead sponsor funds and oversees the trial. A pharmaceutical or biotech company sponsor typically means the study is testing that company's drug or device; a hospital, university, or government agency usually indicates investigator-initiated or publicly funded research.

Lead sponsor
City of Hope Medical Center
Collaborators
  • National Cancer Institute (NCI)

Participating sites (1)

  • City of Hope Medical CenterRecruiting

    Duarte, California, 91010 · United States

Terms used on this page · explanations by MedicalUpdates.ai

relapsed
A condition that improved with treatment and has since returned or worsened.
refractory
A condition that has not responded to a treatment. 'Relapsed' means it responded and then came back; 'refractory' means it did not respond in the first place.
informed consent
The process of explaining a study, including its risks and what participation involves, so that a person can decide freely whether to take part. Consent is usually documented in writing, and a participant can choose to leave the study later.
legally authorized representative
A person who is legally allowed to make decisions, including consent to research, on behalf of someone who cannot consent for themselves.
Assent
A child's or dependent adult's agreement to take part, given alongside the formal consent of a parent or legal representative.
ECOG
A scale from 0 to 5 that describes how a person's condition affects daily activity. 0 means fully active; 1 means restricted in strenuous activity; 2 means able to self-care but unable to work; higher numbers mean more limitation.
Cohort
A group of people who share a characteristic, such as a diagnosis, and are studied together. 'Prospective' means they are followed forward from enrolment; 'retrospective' means existing records are reviewed.
prior lines
Treatment a person has already had for the condition. A 'line of therapy' is one course of treatment; studies often require, or limit, the number of prior lines.
chimeric antigen receptor
A treatment in which a person's own immune cells (T cells) are collected, modified in a laboratory to recognise a target, and returned to the body.
bispecific antibody
An engineered antibody that attaches to two targets at once, often linking an immune cell to a diseased cell so the immune cell can attack it.
previously untreated
Has not previously received the treatment, or the type of treatment, that the study is about.
computed tomography
An X-ray scan that builds detailed cross-section images of the body. 'High-resolution' CT (HRCT) is used to look closely at the lungs.
magnetic resonance imaging
A scan that uses magnets and radio waves, not X-rays, to make detailed pictures of the inside of the body. Some implants and metal objects mean a person cannot have one.
Life expectancy
Some studies require that, in the investigator's judgement, a participant is likely to live long enough to complete the study period. It is a study requirement, not a prediction about any individual.
Absolute neutrophil count
The number of neutrophils, a type of white blood cell that fights infection, in a blood sample. Studies often require it to be above a set level.
upper limit of normal
The highest value of a blood test that a laboratory considers normal. Criteria such as '≤ 3 × ULN' mean the result must be no more than three times that value.
Creatinine clearance
A measure of kidney function, calculated from a blood creatinine level together with age, weight and sex.
QTcF
A recording of the heart's electrical activity. QTc is one measurement from it; some drugs are avoided if it is prolonged.
Women of childbearing potential
Studies often ask participants who could become pregnant, or could father a child, to use contraception during the study and for a period afterwards, because the effect of the treatment on a pregnancy is unknown.
study drug
A treatment that is being tested and has not been approved for this use. It may be approved for a different condition. Being studied does not mean it works or is available outside the study.
autologous stem cell transplant
A procedure that replaces blood-forming cells after high-dose treatment. 'Autologous' uses the person's own cells collected beforehand; 'allogeneic' uses cells from a donor.
immunosuppressive
A medicine that reduces the activity of the immune system. Studies of autoimmune conditions often require a stable dose, a prior failure, or a washout of such medicines.
corticosteroid
Steroid medicines, such as prednisone, that reduce inflammation. Studies often require a stable dose at entry or measure whether the study treatment allows the dose to be reduced.
5 half-lives
The time it takes for the amount of a drug in the body to fall by half. 'Five half-lives' is often used as the point at which a previous drug has essentially left the body.
before screening
The checks done before enrolment to see whether a person qualifies, such as tests, scans or a review of medical history.
adverse events
Any unwanted medical problem that happens during a study, whether or not it was caused by the treatment. A 'serious' adverse event is one that meets specific criteria, such as causing death, being life-threatening, requiring or prolonging hospital admission, causing significant disability, or another medically important outcome.
Inclusion Criteria
The conditions a person must meet to be considered for the study, for example a confirmed diagnosis, an age range or a test result.
Exclusion Criteria
The conditions that rule a person out even if they meet the inclusion criteria, for example other illnesses, certain medicines or pregnancy.
complete response
No sign of the condition can be found with the tests used in the study. It does not always mean the condition is gone permanently, and the definition depends on the condition and the study.
progression free survival
The length of time during and after treatment that a person lives without the condition getting worse, as defined by the study.
overall survival
The length of time from the start of the study or treatment that participants are alive, whatever the cause of death.
MRD
Very small amounts of disease that remain after treatment and can only be found with highly sensitive tests. 'MRD-negative' means none was detected at the test's limit. The exact test and threshold depend on the condition and the study.
biopsy
Removal of a small piece of tissue so it can be examined under a microscope. 'Biopsy-proven' or 'histologically confirmed' means the diagnosis was confirmed by examining tissue under a microscope.

The study record on this page is reproduced from ClinicalTrials.gov, a database of the U.S. National Library of Medicine, where it was submitted by the study sponsor. MedicalUpdates.ai does not own this content, is not affiliated with or endorsed by ClinicalTrials.gov, NIH, or the U.S. Government, and does not verify the record. Plain-language notes, the glossary and the questions above are added by this site; text in the boxes marked "AI summary" was written by an AI model and may contain errors. Registry records change over time. Check the original record for the current version and discuss eligibility or participation with a qualified healthcare professional.

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