Testing Early Treatment for Patients With High-Risk Chronic Lymphocytic Leukemia (CLL) or Small Lymphocytic Leukemia (SLL), EVOLVE CLL/SLL Study

What this study is about

This phase III trial compares early treatment with venetoclax and obinutuzumab versus delayed treatment with venetoclax and obinutuzumab in patients with newly diagnosed high-risk chronic lymphocytic leukemia or small lymphocytic lymphoma. Venetoclax 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. Immunotherapy with monoclonal antibodies, such as obinutuzumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Starting treatment with the venetoclax and obinutuzumab early (before patients have symptoms) may have better outcomes for patients with chronic lymphocytic leukemia or small lymphocytic lymphoma compared to starting treatment with the venetoclax and obinutuzumab after patients show symptoms.

Who can join (things the study team will check)

✅ You may be able to join if…

• Participants must have a confirmed diagnosis of chronic lymphocytic leukemia (CLL) or small lymphocytic lymphoma (SLL) (collectively referred to as CLL throughout) according to the 2018 International Workshop on CLL. Participants must have been diagnosed within 18 months prior to registration
• Participants must have CLL-International Prognostic Index (CLL-IPI) score >= 4 and/or complex cytogenetics (defined as 3+ chromosomal abnormalities)
• Cytogenetic AND/OR FISH analyses must be completed at a Clinical Laboratory Improvement Act (CLIA)-approved (or laboratories accredited under Accreditation Canada Diagnostics to conduct FISH analyses) laboratory within 18 months prior to registration. At minimum, FISH panel should use probes to detect for abnormalities in chromosomes 13q, 12, 11q, and 17p
• TP53 gene mutation analysis performed at any CLIA-approved (or laboratories accredited under Accreditation Canada Diagnostics) lab (if completed) must be obtained within 18 months prior to registration. This sequencing test is distinct from FISH studies for del(17p)
  • Note: TP53 gene mutation analysis is recommended but not required if the participant meets disease-related study criteria via a combination of risk factors that totals a score of 4 on the CLL-IPI score and/or has complex cytogenetics completed
• Immunoglobulin heavy chain locus variable (IgVH) gene mutation analysis performed at any CLIA-approved lab (or laboratories accredited under Accreditation Canada Diagnostics) must be obtained prior to registration (at any time prior to registration)
• Serum beta-2 microglobulin level must be obtained within 28 days prior to registration
• Participants must not meet any of the IWCLL specified criteria for active CLL therapy
• Treatment with high dose corticosteroids and/or intravenous immunoglobulin for autoimmune complications of CLL must be complete at least 4 weeks prior to enrollment
• Steroids used for treatment of conditions other than CLL/SLL must be at a dose of at most 20 mg/day of prednisone or equivalent corticosteroid at the time of registration
• Prior therapy with anti CD20 monoclonal antibodies is not allowed
• Participants must not have received or be currently receiving any prior CLL-directed therapy, including non-protocol-related therapy, anti-cancer immunotherapy, experimental therapy (with exception of agents approved for emergency access use for the prevention or treatment of coronavirus disease 2019 [COVID-19]), or radiotherapy
• Participants must not be receiving or planning to receive any other investigational agents before completing protocol therapy
• Participants must be >= 18 years of age
• Participants must have Eastern Cooperative Oncology Group (ECOG) performance status =< 2
• Platelet count >= 100,000/mm\^3 within 28 days prior to registration
• Absolute neutrophil count (ANC) >= 1,000/mm\^3 within 28 days prior to registration
• Creatinine clearance >= 30mL/min (by Cockcroft Gault) within 28 days prior to registration
• Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) < 3.0 x upper limit of normal (ULN) within 28 days prior to registration
• Total bilirubin =< 2.0 x ULN (or 5.0 x ULN if the participant has a history of Gilbert's disease), within 28 days prior to registration
• Participants must be able to take oral medications

+ 18 more criteria — see the full checklist in the app.

Where this trial is running

• University of Alabama at Birmingham Cancer Center, Birmingham, Alabama, United States
• Anchorage Associates in Radiation Medicine, Anchorage, Alaska, United States
• Anchorage Radiation Therapy Center, Anchorage, Alaska, United States
• Alaska Breast Care and Surgery LLC, Anchorage, Alaska, United States
• Alaska Oncology and Hematology LLC, Anchorage, Alaska, United States
• Alaska Women's Cancer Care, Anchorage, Alaska, United States
• Anchorage Oncology Centre, Anchorage, Alaska, United States
• Katmai Oncology Group, Anchorage, Alaska, United States
• Providence Alaska Medical Center, Anchorage, Alaska, United States
• Fairbanks Memorial Hospital, Fairbanks, Alaska, United States
• Cancer Center at Saint Joseph's, Phoenix, Arizona, United States
• Banner University Medical Center - Tucson, Tucson, Arizona, United States

+ 619 more sites.