Study of Bcl-2 Inhibitor Sonrotoclax (BGB-11417) in Participants With Mature B-Cell Malignancies

The purpose of this study is to determine the safety, tolerability; and to define the maximum tolerated dose (MTD) and Recommended Phase 2 Dose (RP2D); and to evaluate the safety and tolerability of the ramp-up dosing schedule and at the RP2D of BGB-11417 monotherapy, and when given in combination with zanubrutinib and obinutuzumab.

Our company, previously known as BeiGene, is now officially BeOne Medicines. Because some of our older studies were sponsored under the name BeiGene, you may see both names used for this study on this website.

Key Inclusion Criteria: * Confirmed diagnosis of one of the following: NHL Cohorts: 1. MZL i. R/R extranodal, splenic, or nodal MZL defined as disease that relapsed after, or was refractory to, at least one prior therapy ii. Active disease requiring treatment 2. FL i. R/R FL (Grade 1, 2 or 3a based on the WHO 2008 classification of tumors of hematopoietic and lymphoid tissue) and defined as disease that relapsed after, or was refractory to, at least 1 prior systemic therapy 3. DLBCL i. R/R DLBCL (including all subtypes of DLBCL) defined as disease that relapsed after, or was refractory to, at least two prior systemic therapies and has either progressed following or is not a candidate for autologous stem cell transplant (due to comorbidities or non-responsiveness to salvage chemotherapy) 4. Transformed indolent B-cell NHL i. Any lymphoma otherwise eligible for Part 1 that has transformed into a more aggressive lymphoma. Patients with transformation from CLL or SLL (Richter's transformation) are not eligible for Part 1 CLL/SLL Cohorts: 5. CLL/SLL diagnosis that meets the International Workshop on Chronic Lymphocytic Leukemia (IWCLL) criteria i. Disease characterized as Treatment Naive (TN) or R/R disease defined as disease that relapsed after, or was refractory to, at least 1 prior therapy ii. Requiring treatment as defined by history MCL cohorts: 6. WHO-defined MCL i. R/R MCL defined as disease that relapsed after, or was refractory to, at least 1 prior systemic therapy; ii. Requiring treatment in the opinion of the investigator WM cohorts: g. WHO-defined WM (clinical and definitive histologic diagnosis) i. R/R disease defined as disease that relapsed after, or was refractory to, at least 1 prior therapy; ii. Meeting at least 1 criterion for treatment according to consensus panel criteria from the Seventh International Workshop on Waldenström's Macroglobulinemia (Dimopoulos et al 2014) * Measurable disease by computed tomography (CT)/magnetic resonance imaging (MRI), defined as: 1. CLL: at least 1 lymph node \> 1.5 cm in longest diameter and measurable in 2 perpendicular dimensions or clonal lymphocytes measured by flow cytometry 2. DLBCL, FL, MZL, MCL, or SLL: at least 1 lymph node \> 1.5 cm in longest diameter OR 1 extranodal lesion \> 1.0 cm in the longest diameter, measurable in at least 2 perpendicular dimensions. For MZL, isolated splenomegaly is considered measurable for this study 3. WM: serum immunoglobulin (Ig) M level \> 0.5 g/dL * Eastern Cooperative Oncology Group (ECOG) performance status of 0 to 2 * Adequate organ function * Adequate pancreatic function indicated by: 1. Serum amylase ≤ 1.5 x upper limit of normal (ULN) 2. Serum lipase ≤ 1.5 x ULN Key Exclusion Criteria: * Known current central nervous system involvement by lymphoma/leukemia * Known plasma cell neoplasm, prolymphocytic leukemia, history of or currently suspected Richter's syndrome * Prior therapy ≥ 2 months with or progression on a B-cell lymphoma-2 (Bcl-2) inhibitor NOTE: Other protocol defined Inclusion/Exclusion criteria may apply.