A Phase 3 Open-Label, Randomized Study of Fixed Duration Pirtobrutinib (LOXO-305) plus Venetoclax and Rituximab versus Venetoclax and Rituximab in Previously Treated Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma (BRUIN CLL-322)

Cancer Categories

Karmanos Trial ID

NCT ID

Age Group

Scope

Phase

Principal Investigator

Suresh
Balasubramanian, M.D.
Oncology - Hematology, Oncology - Medical View Profile

Primary Objective:

To evaluate PFS of pirtobrutinib plus venetoclax and rituximab (Arm A) compared to venetoclax and rituximab (Arm B)

Secondary Objectives:

To evaluate the effectiveness of Arm A compared to Arm B based on ORR and time to event(s) outcomes
To evaluate the safety and tolerability of each treatment arm
To evaluate the effectiveness of Arm A compared to Arm B in patient-reported disease-related symptoms and physical functioning

Eligibility

Inclusion Criteria:

Confirmed diagnosis of CLL/SLL requiring therapy per iwCLL 2018 criteria
Previous treatment with at least one line of therapy that may include a covalent Bruton's tyrosine kinase (BTK) inhibitor
Platelets greater than or equal to (≥)50 x 10⁹/liter (L), hemoglobin ≥8 grams/deciliter (g/dL) and absolute neutrophil count ≥1.0 x 10⁹/L
Adequate organ function
Eastern Cooperative Oncology Group (ECOG) Performance Status 0-2
Estimated creatinine clearance ≥30 milliliters per minute (mL/min)

Exclusion Criteria:

Known or suspected Richter's transformation at any time preceding enrollment
Prior therapy with a non-covalent (reversible) BTK inhibitor
Patients requiring therapeutic anticoagulation with warfarin or another Vitamin K antagonist
Current treatment with strong cytochrome P450 (CYP) 3A4 (CYP3A4) inhibitors or inducers
Prior therapy with venetoclax
Central nervous system (CNS) involvement
Active uncontrolled systemic bacterial, viral, fungal, or parasitic infection
Known human immunodeficiency virus (HIV) infection, regardless of cluster of differentiation 4 (CD4) count
Allogeneic stem cell transplantation (SCT) or chimeric antigen receptor (CAR)-T within 60 days
Active hepatitis B or hepatitis C
Known active cytomegalovirus (CMV) infection
Uncontrolled immune thrombocytopenic purpura (ITP) or autoimmune hemolytic anemia (AIHA)
Significant cardiovascular disease
Vaccination with a live vaccine within 28 days prior to randomization
Patients with the following hypersensitivity:

Known hypersensitivity to any component or excipient of pirtobrutinib and venetoclax
Prior significant hypersensitivity to rituximab
Known allergy to allopurinol and inability to take uric acid lowering agent

Locations

4100 John R
Detroit, MI 48201
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Phone: 800-527-6266

31995 Northwestern Hwy
Farmington Hills, MI 48334
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Phone: 800-527-6266

Applicable Disease Site

Therapies, Drugs, Devices