A Study of Venetoclax in Combination With Obinutuzumab in Participants With Chronic Lymphocytic Leukemia
Lymphocytic Leukemia, Chronic
About this trial
This is an interventional treatment trial for Lymphocytic Leukemia, Chronic
Eligibility Criteria
Inclusion Criteria:
- Diagnosis of relapsing/refractory or previously untreated chronic lymphocytic leukemia
- Eastern Cooperative Oncology Group (ECOG) performance score of less than or equal to (</=) 1
- Adequate bone marrow function
- Adequate coagulation, renal and hepatic function
- For all participants, agreement to remain abstinent or use contraceptive methods that result in a failure rate of less than (<) 1% per year during the treatment period and for at least 90 days (30 days for women) after the last dose of venetoclax or 18 months after the last dose of obinutuzumab, whichever is longer
Exclusion Criteria:
- Participants who have undergone allogenic stem cell transplant are ineligible unless they meet the following criteria, a) participants who are off all immunosuppressive therapy, b) participants who have no signs and/or symptoms of acute or chronic graft versus host disease, or c) participants must have appropriate hematology counts
- Infection with human immunodeficiency virus (HIV), hepatitis B, or hepatitis C
- Uncontrolled autoimmune hemolytic anemia or thrombocytopenia
- Investigational or anti-cancer therapy within 5 half-lives prior to the first dose of study drug
- History of significant renal, neurologic, psychiatric, endocrinologic, metabolic, immunologic, cardiovascular, or hepatic disease
Sites / Locations
- UCSD Moores Cancer Center
- Colorado Blood Cancer Institute (CBCI) at Presbyterian/ St. Luke's Medical Center
- Weill Cornell Medical College-New York Presbyterian Hospital
- Ohio State University Comprehensive Cancer Center
- Oncology Associates of Oregon
- SCRI-Tennessee Oncology
- The Methodist Hospital Research Institute; Academic Office of Clinical Trials
- St James University Hospital
- Leicester Royal Infirmary NHS Trust
- Barts and The London School of Medicine and Dentistry; Queen Mary, University of London
Arms of the Study
Arm 1
Arm 2
Arm 3
Arm 4
Arm 5
Arm 6
Experimental
Experimental
Experimental
Experimental
Experimental
Experimental
Dose-Finding: Schedule A: Relapsed/Refractory CLL
Dose-Finding: Schedule B: Relapsed/Refractory CLL
Dose-Finding: Schedule A: Previously Untreated CLL
Dose-Finding: Schedule B: Previously Untreated CLL
Safety Expansion: Relapsed/Refractory CLL
Safety Expansion: Previously Untreated CLL
All 4 cohorts will begin venetoclax administration after the ramp-up period of 5 weeks. In 4 cohorts of participants with relapsed/refractory CLL escalating doses of venetoclax will be administered in combination with fixed dose obinutuzumab in the dose-finding stage. In Schedule A, venetoclax will be introduced before obinutuzumab. Schedule A will be explored prior to Schedule B.
In 4 cohorts of participants with relapsed/refractory CLL escalating doses of venetoclax will be administered in combination with fixed dose obinutuzumab in the dose-finding stage. In Schedule B, venetoclax will be introduced after obinutuzumab. Schedule A will be explored prior to Schedule B.
All 4 cohorts will begin venetoclax administration after the ramp-up period of 5 weeks. In 4 cohorts of participants with previously untreated CLL escalating doses of venetoclax will be administered in combination with fixed dose obinutuzumab in the dose-finding stage. In Schedule A, venetoclax will be introduced before obinutuzumab. Schedule A will be explored prior to Schedule B.
In 4 cohorts of participants with previously untreated CLL escalating doses of venetoclax will be administered in combination with fixed dose obinutuzumab in the dose-finding stage. In Schedule B, venetoclax will be introduced after obinutuzumab. Schedule A will be explored prior to Schedule B.
In participants with relapsed/refractory CLL a recommended dose of venetoclax will be administered in combination with obinutuzumab in the safety expansion stage. Schedule A or B will be used for the expansion cohort after a review of available safety data from the dose finding stage.
In participants with previously untreated CLL a recommended dose of venetoclax will be administered in combination with obinutuzumab in the safety expansion stage. Schedule A or B will be used for the expansion cohort after a review of available safety data from the dose finding stage.