Phase III
A Phase 3 Randomized, Open-Label, Multicenter Study of Sonrotoclax Plus Anti-CD20 Antibody Therapies Versus Venetoclax Plus Rituximab in Patients With Relapsed/Refractory Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma
- Study HIC#:2000040673
- Last Updated:10/14/2025
The goal of this study is to compare how well sonrotoclax plus obinutuzumab works versus venetoclax plus rituximab in treating adults with relapsed and/or refractory (R/R) chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL). The study will also compare how well sonrotoclax plus rituximab works versus venetoclax plus rituxumab in treating adults with R/R CLL/SLL. The safety of these treatments will also be assessed.
Contact Us
For more information about this study, including how to volunteer, contact:
Daniel Moncayo
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You can help our team find trials you might be eligible for by creating a volunteer profile in MyChart. To get started, create a volunteer profile, or contact helpusdiscover@yale.edu, or call +18779788343 for more information.
Eligibility Criteria
Inclusion Criteria:
- Confirmed diagnosis of CLL/SLL that meets the International Workshop on Chronic Lymphocytic Leukemia (iwCLL) criteria
- Received one or more prior therapies for CLL/SLL. For each line of therapy, participants must have received at least 2 cycles of the therapy
- Participants with prior BCL2i exposure are eligible if remission duration was ≥3 years with ≥2 years from last BCL2i intake
- Eastern Cooperative Oncology Group (ECOG) Performance Status score of 0, 1, or 2
- Adequate organ function
Exclusion Criteria:
- Known active prolymphocytic leukemia or currently suspected Richter's transformation
- Prior autologous stem cell transplantation or chimeric antigen receptor T-cell therapy within 3 months before first dose of study drug
- Prior allogeneic stem cell transplant with active graft-versus-host disease (GVHD), requiring immunosuppressive drugs for treatment of GVHD, or have taken calcineurin inhibitors within 4 weeks prior to consent
- Known central nervous system involvement by CLL/SLL
- Severe or debilitating pulmonary disease
- Clinically significant cardiovascular disease
