A Study to Investigate Progression-Free Survival With Sonrotoclax Plus Obinutuzumab Or Sonrotoclax Plus Rituximab Compared With Venetoclax Plus Rituximab Treatment In Patients With Relapsed and/or Refractory Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma (CELESTIAL-RRCLL)

Summary

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.

Eligibility

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

NOTE: Other protocol defined Inclusion/Exclusion criteria may apply.

Conditions3

Locations29 sites

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