RecruitingPhase 3

Testing the Addition of Anti-Cancer Drug Sonrotoclax, to the Standard Treatment Zanubrutinib, for Previously Untreated CLL/SLL

United States466 participantsStarted 2026-04-30

Plain-language summary

This phase III trial compares the effect of adding sonrotoclax to zanubrutinib versus zanubrutinib alone for the treatment of patients with untreated chronic lymphoblastic leukemia (CLL)/small lymphocytic lymphoma (SLL). Sonrotoclax is in a class of medications called B-cell lymphoma-2 (BCL-2) inhibitors. It may stop the growth of cancer cells by blocking Bcl-2, a protein needed for cancer cell survival. Zanubrutinib is in a class of medications called kinase inhibitors. It blocks a protein called BTK, which is present on B-cell (a type of white blood cells) cancers such as mantel cell lymphoma at abnormal levels. This may help keep cancer cells from growing and spreading. Giving sonrotoclax and zanubrutinib may be more effective than zanubrutinib alone for the treatment of untreated CLL/SLL.

Who can participate

Age range

65 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * STEP 0: This bone marrow or peripheral blood submission to Adaptive is mandatory prior to registration/randomization for real-time identification of the clone needed for MRD testing. The bone marrow sample should be from the first aspiration (i.e., first pull). Aspirate needle should be redirected if needed to get first pull bone marrow aspirate. It should be obtained as soon after pre-registration as possible to confirm registration eligibility * STEP 0: Patients must be diagnosed with CLL/SLL according to International Workshop on Chronic Lymphocytic Leukemia (IWCLL) 2018 criteria that includes all of the following: * ≥ 5 x10\^9 /L B lymphocytes (5000/μL) in the peripheral blood (CLL) or a lymph node biopsy demonstrating SLL with the below immunophenotype (SLL) * On morphologic review, the leukemic cells must be small mature lymphocytes * Immunophenotype of CLL cells (performed locally) must reveal a clonal B-cell population, which coexpress the B cell surface markers of CD19 and CD20, as well as the T-cell antigen CD5. Patients with bright surface immunoglobulin expression or lack of CD23 expression in \> 10% of cells must lack t(11;14) translocation by interphase cytogenetics * STEP 0: Patients must meet criteria for treatment as defined by IWCLL 2018 guidelines which includes at least one of the following criteria: * Evidence of marrow failure as manifested by the development or worsening of anemia or thrombocytopenia (not attributable to…

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Progression free survival (PFS)

Timeframe: From initial randomization date until the earlier of disease progression or death from any cause, up to 10 years

Trial details

NCT IDNCT07321652

SponsorAlliance for Clinical Trials in Oncology

Sponsor typeOTHER

Study typeINTERVENTIONAL

Primary completion2028-09-30

Contact for this trial

Jayke Giese

773-702-9171 leukemiaprotocols@alliancenctn.org

View on ClinicalTrials.gov More Chronic Lymphocytic Leukemia trials