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A Study Evaluating the Safety and Efficacy of Venetoclax (GDC-0199) Plus Bendamustine + Rituximab (BR) in Comparison With BR or Venetoclax Plus Rituximab in Participants With Relapsed and Refractory Follicular Non-Hodgkin's Lymphoma (fNHL)

A Phase II, Open-Label Study Evaluating the Safety and Efficacy of GDC-0199 (ABT-199) Plus Bendamustine Plus Rituximab (BR) in Comparison With BR Alone or GDC-0199 Plus Rituximab (R) in Patients With Relapsed and Refractory Follicular Non-Hodgkin's Lymphoma

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02187861
Enrollment
163
Registered
2014-07-11
Start date
2014-12-01
Completion date
2018-03-16
Last updated
2019-06-05

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Follicular Lymphoma

Brief summary

This open-label, international, multicenter study will investigate the safety and efficacy of venetoclax (GDC-0199) in combination with bendamustine plus rituximab (venetoclax + BR) compared with BR alone in participants with relapsed and refractory fNHL, comparing two chemotherapy-containing regimens (Chemotherapy-Containing Cohort). In addition, an exploratory analysis of the safety and efficacy of venetoclax in combination with rituximab (venetoclax + rituximab), a chemotherapy-free regimen, will be performed (Chemotherapy-Free Cohort). Assignment to the Chemotherapy-Containing or Chemotherapy-Free Cohort will be decided at the discretion of the Investigator, unless one of the cohorts is not open to enrollment; in which case, participants may be enrolled only to the open cohort. The first 6 participants enrolled in the Chemotherapy-Containing Cohort (or more if required) will comprise the Safety Run-In group for Treatment Arm B, dosing venetoclax at 600 milligrams (mg) in combination with BR. Once a dose has been chosen from the Safety Run-In Period, randomization to the two treatment arms of the Chemotherapy-Containing Cohort (Arms B and C) will begin.

Interventions

DRUGVenetoclax

Venetoclax will be administered as per the schedule specified under arm description.

DRUGBendamustine

Bendamustine will be administered as per the schedule specified under arm description.

DRUGRituximab

Rituximab will be administered as per the schedule specified under arm description.

Sponsors

AbbVie
CollaboratorINDUSTRY
Hoffmann-La Roche
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Participants must have histologically confirmed follicular lymphoma (FL) of Grade 1, 2, or 3a * Participants must have received at least one prior therapy for FL * For participants potentially receiving chemotherapy: if the participant has received prior bendamustine, response duration must have been greater than (\>) 1 year * At least one bi-dimensionally measurable lesion on imaging scan defined as \>1.5 centimeters (cm) in its longest dimension * Eastern Cooperative Oncology Group (ECOG) Performance Status of 0, 1, or 2 * Adequate hematologic function * For female participants of childbearing potential and male participants with female partners of childbearing potential, agreement to use one highly effective form of non-hormonal contraception or two effective forms of non-hormonal contraception throughout the course of study treatment and for at least 30 days after the last dose of venetoclax and 12 months after the last dose of rituximab, whichever is longer * Confirmed availability of archival or freshly biopsied tumor tissue meeting protocol-defined specifications prior to study enrollment

Exclusion criteria

* History of severe allergic or anaphylactic reactions to humanized or murine monoclonal antibodies or known sensitivity or allergy to murine products * Contraindication to potential treatment agents * Ongoing corticosteroid use \>30 milligrams per day (mg/day) of prednisone or equivalent. Participants receiving corticosteroid treatment with less than equal to (\</=) 30 mg/day of prednisone or equivalent must be documented to be on a stable dose of at least 4 weeks duration prior to randomization (Cycle 1 Day 1) * Primary central nervous system (CNS) lymphoma * Vaccination with live vaccines within 28 days prior to treatment * Chemotherapy or other investigational therapy within five half-lives of a biologic agent with a minimum of 28 days prior to the start of Cycle 1 * History of other malignancy that could affect compliance with the protocol or interpretation of results * Evidence of significant, uncontrolled concomitant diseases that could affect compliance with the protocol or interpretation of results or that could increase risk to the participant * Significant cardiovascular disease (such as New York Heart Association Class III or IV cardiac disease, congestive heart failure, myocardial infarction within the previous 6 months, unstable arrhythmias, or unstable angina) or significant pulmonary disease (including obstructive pulmonary disease and history of bronchospasm) * Known active bacterial, viral, fungal, mycobacterial, parasitic, or other infection (excluding fungal infections of nail beds) at study enrollment or any major episode of infection requiring treatment with intravenous antibiotics or hospitalization (relating to the completion of the course of antibiotics) within 4 weeks prior to Cycle 1 Day 1 * Requires the use of warfarin * Clinically significant history of liver disease, including viral or other hepatitis, current alcohol abuse, or cirrhosis * Presence of positive test results for hepatitis B surface antigen or hepatitis C virus (HCV) antibody * Participants who are positive for HCV antibody must be negative for HCV by polymerase chain reaction (PCR) to be eligible for study participation * Participants with occult or prior hepatitis B virus (HBV) infection may be included if HBV deoxyribonucleic acid (DNA) is undetectable at screening. These participants must be willing to undergo monthly HBV DNA test until at least 12 months after the last treatment cycle * Known infection with human immunodeficiency virus (HIV) or human T-cell leukemia virus 1 (HTLV-1) * Pregnant or lactating * Recent major surgery (within 6 weeks before the start of Cycle 1 Day 1), other than for diagnosis

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Participants With Complete Metabolic Response (CMR) According to Independent Review Committee (IRC) as Per Lugano Classification, Using Positron Emission Tomography (PET) Scan at Primary Response Assessment (PRA)6-8 weeks after Cycle 6 Day 1 (PRA) (Cycle length = 28 days)CMR: a score 1 (no uptake above background), 2 (uptake less than or equal to \[\<=\] mediastinum), or 3 (uptake less than \[\<\] mediastinum but \<=liver) with or without a residual mass on PET 5-point scale (5-PS), for lymph nodes and extralymphatic sites with no new lesions and no evidence of fluorodeoxyglucose (FDG)-avid disease in bone marrow. Assessment was performed by an IRC according to Lugano classification using PET scan. 95% confidence interval (CI) for percentage of responders was calculated using Clopper-Pearson method.

Secondary

MeasureTime frameDescription
Percentage of Participants With CMR According to IRC as Per Lugano Classification, Using PET Scan at Year 148-56 weeks after Cycle 1 Day 1 (Cycle length = 28 days)CMR: a score 1 (no uptake above background), 2 (uptake \<=mediastinum), or 3 (uptake \<mediastinum but \<=liver) with or without a residual mass on PET 5-PS, for lymph nodes and extralymphatic sites with no new lesions and no evidence of FDG-avid disease in bone marrow. Assessment was performed by an IRC according to Lugano classification using PET scan. 95% CI for percentage of responders was calculated using Clopper-Pearson method.
Percentage of Participants With CMR According to Investigator as Per Lugano Classification, Using PET Scan at Year 148-56 weeks after Cycle 1 Day 1 (Cycle length = 28 days)CMR: a score 1 (no uptake above background), 2 (uptake \<=mediastinum), or 3 (\<mediastinum but \<=liver) with or without a residual mass on PET 5-PS, for lymph nodes and extralymphatic sites with no new lesions and no evidence of FDG-avid disease in bone marrow. Assessment was performed by Investigator according to Lugano classification using PET scan. 95% CI for percentage of responders was calculated using Clopper-Pearson method.
Percentage of Participants With Complete Response (CR) According to IRC as Per Lugano Classification, Using Computed Tomography (CT) Scan6-8 weeks after Cycle 6 Day 1 and 48-56 weeks after Cycle 1 Day 1 (Cycle length = 28 days)CR: defined as reduction of longest transverse diameter of lesion (LDi) of target nodes/nodal masses to \<=1.5 centimeters (cm), and no extralymphatic sites of disease; absence of non-measured lesions and new lesions; reduction of enlarged organs to normal; and normal/immunohistochemistry (IHC)-negative bone marrow morphology. Assessment was performed by an IRC according to Lugano classification using CT scan. 95% CI for percentage of responders was calculated using Clopper-Pearson method.
Percentage of Participants With CR According to Investigator as Per Lugano Classification, Using CT Scan4-10 weeks after Cycle 6 Day 1 and 48-56 weeks after Cycle 1 Day 1 (Cycle length = 28 days)CR: defined as reduction of LDi of target nodes/nodal masses to \<=1.5 cm, and no extralymphatic sites of disease; absence of non-measured lesions and new lesions; reduction of enlarged organs to normal; and normal/IHC-negative bone marrow morphology. Assessment was performed by Investigator according to Lugano classification using CT scan. 95% CI for percentage of responders was calculated using Clopper-Pearson method.
Percentage of Participants With Objective Response (OR) According to IRC as Per Lugano Classification, Using PET Scan6-8 weeks after Cycle 6 Day 1 and 48-56 weeks after Cycle 1 Day 1 (Cycle length = 28 days)OR was defined as CMR or Partial Metabolic Response (PMR). CMR: a score 1 (no uptake above background), 2 (uptake \<=mediastinum), or 3 (\<mediastinum but \<=liver) with or without a residual mass on PET 5-PS, for lymph nodes and extralymphatic sites with no new lesions and no evidence of FDG-avid disease in bone marrow. PMR: a score 4 (uptake moderately greater than \[\>\] liver) or 5 (uptake markedly \>liver and/or new lesions) with reduced uptake compared with baseline and residual mass(es) of any size on PET 5-PS for lymph nodes and extralymphatic sites with no new lesions and reduced residual uptake in bone marrow compared with baseline. Assessment was performed by an IRC according to Lugano classification using PET scan. 95% CI for percentage of responders was calculated using Clopper-Pearson method.
Percentage of Participants With OR According to Investigator as Per Lugano Classification, Using PET Scan4-10 weeks after Cycle 6 Day 1 and 48-56 weeks after Cycle 1 Day 1 (Cycle length = 28 days)OR was defined as CMR or PMR. CMR: a score 1 (no uptake above background), 2 (uptake \<=mediastinum), or 3 (\<mediastinum but \<=liver) with or without a residual mass on PET 5-PS, for lymph nodes and extralymphatic sites with no new lesions and no evidence of FDG-avid disease in bone marrow. PMR: a score 4 (uptake moderately \>liver) or 5 (uptake markedly \>liver and/or new lesions) with reduced uptake compared with baseline and residual mass(es) of any size on PET 5-PS for lymph nodes and extralymphatic sites with no new lesions and reduced residual uptake in bone marrow compared with baseline. Assessment was performed by Investigator according to Lugano classification using PET scan. 95% CI for percentage of responders was calculated using Clopper-Pearson method.
Percentage of Participants With OR According to IRC as Per Lugano Classification, Using CT Scan6-8 weeks after Cycle 6 Day 1 and 48-56 weeks after Cycle 1 Day 1 (Cycle length = 28 days)OR was defined as CR or Partial Response (PR). CR: reduction of LDi of target nodes/nodal masses to \<=1.5 cm, and no extralymphatic sites of disease; absence of non-measured lesions and new lesions; reduction of enlarged organs to normal; and normal/IHC-negative bone marrow morphology. PR: greater than or equal to (\>=) 50 percent (%) decrease in sum of the product of the perpendicular diameters (SPD) of up to 6 target measurable nodes and extra-nodal sites; absence/reduction/no increase in size of non-measured lesions; reduction in length of spleen at least \>50% beyond normal; and no new lesions. Assessment was performed by an IRC according to Lugano classification using CT scan. 95% CI for percentage of responders was calculated using Clopper-Pearson method.
Percentage of Participants With OR According to Investigator as Per Lugano Classification, Using CT Scan4-10 weeks after Cycle 6 Day 1 and 48-56 weeks after Cycle 1 Day 1 (Cycle length = 28 days)OR was defined as CR or PR. CR: reduction of LDi of target nodes/nodal masses to \<=1.5 cm, and no extralymphatic sites of disease; absence of non-measured lesions and new lesions; reduction of enlarged organs to normal; and normal/IHC-negative bone marrow morphology. PR: \>=50% decrease in SPD of up to 6 target measurable nodes and extra-nodal sites; absence/reduction/no increase in size of non-measured lesions; reduction in length of spleen at least \>50% beyond normal; and no new lesions. Assessment was performed by Investigator according to Lugano classification using CT scan. 95% CI for percentage of responders was calculated using Clopper-Pearson method.
Percentage of Participants With OR According to Investigator as Per Lugano Classification, Using PET or CT ScanBaseline until disease progression or death due to any cause (assessed up to approximately 2.5 years)OR was defined as CMR/CR or PMR/PR. CMR, CR, PMR, and PR have been defined in previous endpoints, and are not repeated here due to space constraint. Assessment was performed by Investigator according to Lugano classification using PET scan or CT scan (if PET is missing).
Duration of Response (DOR) According to Investigator as Per Lugano Classification, Using PET or CT ScanFrom CMR or PMR until disease progression or death due to any cause (assessed up to approximately 2.5 years)DOR was defined as time from CMR/CR or PMR/PR until progressive disease (PD) or death due to any cause. CMR, CR, PMR, and PR have been defined in previous endpoints, and are not repeated here due to space constraint. PD: a score 4 (uptake moderately \>liver) or 5 (uptake markedly \>liver and/or new lesions) with increase in intensity of uptake from baseline on PET 5-PS for individual target nodes/nodal lesions; new FDG-avid foci for extranodal lesions; new FDG-avid foci consistent with lymphoma for new lesions; or new or recurrent FDG-avid foci for bone marrow. Assessment was performed by Investigator according to Lugano classification using PET scan or CT scan (if PET is missing). DOR was calculated using Kaplan-Meier method.
Percentage of Participants With Disease Progression (According to Investigator as Per Lugano Classification, Using PET or CT Scan) or DeathBaseline until disease progression or death due to any cause (assessed up to approximately 2.5 years)PD: a score 4 (uptake moderately \>liver) or 5 (uptake markedly \>liver and/or new lesions) with increase in intensity of uptake from baseline on PET 5-PS for individual target nodes/nodal lesions; new FDG-avid foci for extranodal lesions; new FDG-avid foci consistent with lymphoma for new lesions; or new or recurrent FDG-avid foci for bone marrow. Assessment was performed by Investigator according to Lugano classification using PET or CT scan.
Percentage of Participants With CMR According to Investigator as Per Lugano Classification, Using PET Scan at PRA4-10 weeks after Cycle 6 Day 1 (Cycle length = 28 days)CMR: a score 1 (no uptake above background), 2 (uptake \<=mediastinum), or 3 (\<mediastinum but \<=liver) with or without a residual mass on PET 5-PS, for lymph nodes and extralymphatic sites with no new lesions and no evidence of FDG-avid disease in bone marrow. Assessment was performed by Investigator according to Lugano classification using PET scan. 95% CI for percentage of responders was calculated using Clopper-Pearson method.
Percentage of Participants With Disease Progression (According to Investigator as Per Lugano Classification, Using PET or CT Scan), Death, or Start of a New Anti-lymphoma TherapyBaseline until disease progression, death, or start of a new anti-lymphoma therapy whichever occurred first (assessed up to approximately 2.5 years)PD: a score 4 (uptake moderately \>liver) or 5 (uptake markedly \>liver and/or new lesions) with increase in intensity of uptake from baseline on PET 5-PS for individual target nodes/nodal lesions; new FDG-avid foci for extranodal lesions; new FDG-avid foci consistent with lymphoma for new lesions; or new or recurrent FDG-avid foci for bone marrow. Assessment was performed by Investigator according to Lugano classification using PET or CT scan.
Event-Free Survival (EFS) According to Investigator as Per Lugano Classification, Using PET or CT ScanBaseline until disease progression, death, or start of a new anti-lymphoma therapy whichever occurred first (assessed up to approximately 2.5 years)EFS was defined as the period from the date of treatment initiation (Safety Run-in and Arm A) or randomization date (Arms B and C) to the date of disease progression, death, or start of a new anti-lymphoma therapy whichever occurred first. PD: a score 4 (uptake moderately \>liver) or 5 (uptake markedly \>liver and/or new lesions) with increase in intensity of uptake from baseline on PET 5-PS for individual target nodes/nodal lesions; new FDG-avid foci for extranodal lesions; new FDG-avid foci consistent with lymphoma for new lesions; or new or recurrent FDG-avid foci for bone marrow. Assessment was performed by Investigator according to Lugano classification using PET or CT scan. EFS was calculated using Kaplan-Meier method.
Percentage of Participants Who Died Due to Any CauseBaseline until death due to any cause (assessed up to approximately 2.5 years
Overall Survival (OS)Baseline until death due to any cause (assessed up to approximately 2.5 years)OS was defined as the period from the date of treatment initiation (Safety Run-in and Arm A) or randomization date (Arms B and C) to death due to any cause. For participants who are alive, OS was censored at the last contact. OS was calculated using Kaplan-Meier method.
Apparent Clearance (CL) of VenetoclaxPre-dose (within 30 minutes), and 2, 4, 6, 8 hours post-dose on Cycle 1 Day 1; pre-dose (within 30 minutes) on Cycle 1 Days 8, 15, 22; pre-dose (within 30 minutes) and 4 hours post-dose on Day 1 of Cycles 4 and 6 (Cycle length = 28 days)CL is a quantitative measure of the rate at which a drug substance is removed from the body.
Apparent Volume of Distribution (Vd) of VenetoclaxPre-dose (within 30 minutes), and 2, 4, 6, 8 hours post-dose on Cycle 1 Day 1; pre-dose (within 30 minutes) on Cycle 1 Days 8, 15, 22; pre-dose (within 30 minutes) and 4 hours post-dose on Day 1 of Cycles 4 and 6 (Cycle length = 28 days)Vd was defined as the theoretical volume in which the total amount of drug would need to be uniformly distributed to produce the desired plasma concentration of a drug.
Time to Maximum Plasma Concentration (Tmax) of VenetoclaxPre-dose (within 30 minutes), and 2, 4, 6, 8 hours post-dose on Cycle 1 Day 1; pre-dose (within 30 minutes) on Cycle 1 Days 8, 15, 22; pre-dose (within 30 minutes) and 4 hours post-dose on Day 1 of Cycles 4 and 6 (Cycle length = 28 days)
Maximum Plasma Concentration (Cmax) of VenetoclaxPre-dose (within 30 minutes), and 2, 4, 6, 8 hours post-dose on Cycle 1 Day 1; pre-dose (within 30 minutes) on Cycle 1 Days 8, 15, 22; pre-dose (within 30 minutes) and 4 hours post-dose on Day 1 of Cycles 4 and 6 (Cycle length = 28 days)
Area Under the Plasma Concentration-Time Curve From Time 0 to Last Observed Concentration (AUClast) of VenetoclaxPre-dose (within 30 minutes), and 2, 4, 6, 8 hours post-dose on Cycle 1 Day 1; pre-dose (within 30 minutes) on Cycle 1 Days 8, 15, 22; pre-dose (within 30 minutes) and 4 hours post-dose on Day 1 of Cycles 4 and 6 (Cycle length = 28 days)Area under the plasma concentration versus time curve from zero to the last measured concentration (AUClast).
Area Under the Plasma Concentration-Time Curve From Time 0 to 8 Hours Post Dose (AUC0-8h) of VenetoclaxPre-dose (within 30 minutes), and 2, 4, 6, 8 hours post-dose on Cycle 1 Day 1; pre-dose (within 30 minutes) on Cycle 1 Days 8, 15, 22; pre-dose (within 30 minutes) and 4 hours post-dose on Day 1 of Cycles 4 and 6 (Cycle length = 28 days)Area under the plasma concentration versus time curve from time 0 (pre-dose) to 8 hours post dose (AUC0-8h).
Progression-Free Survival (PFS) According to Investigator as Per Lugano Classification, Using PET or CT ScanBaseline until disease progression or death due to any cause (assessed up to approximately 2.5 years)PFS was defined as the period from the date of treatment initiation (Safety Run-in and Arm A) or randomization date (Arms B and C) until the date of disease progression, or death due to any cause. PD: a score 4 (uptake moderately \>liver) or 5 (uptake markedly \>liver and/or new lesions) with increase in intensity of uptake from baseline on PET 5-PS for individual target nodes/nodal lesions; new FDG-avid foci for extranodal lesions; new FDG-avid foci consistent with lymphoma for new lesions; or new or recurrent FDG-avid foci for bone marrow. Assessment was performed by Investigator according to Lugano classification using PET or CT scan. PFS was calculated using Kaplan-Meier method.

Countries

Australia, Belgium, Canada, France, Germany, Italy, United Kingdom, United States

Participant flow

Participants by arm

ArmCount
Chemotherapy-Containing Cohort:Safety Run-In (Venetoclax + BR)
Participants received venetoclax no more than 600 milligrams (mg) orally once daily continuously along with rituximab 375 milligrams per square meter (mg/m\^2) intravenous (IV) infusion on Day 1 of 28-day cycle and bendamustine 90 mg/m\^2 IV infusion on Days 1 and 2 of the 28-day cycle. Safety run-in continued until first 9 participants completed the safety observation window of 28 days. After first 28 days of safety observation (Cycle 1), participants continued to receive venetoclax 600 mg orally once daily up to 1 year along with rituximab 375 mg/m\^2 IV infusion on Day 1 of each 28-day cycle and bendamustine 90 mg/m\^2 IV infusion on Days 1 and 2 of each 28-day cycle, for 6 cycles.
9
Chemotherapy-Free Cohort: Arm A (Venetoclax + Rituximab)
Participants received venetoclax 800 mg orally once daily for 1 year along with rituximab 375 mg/m\^2 IV infusion on Days 1, 8, 15, 22 of Cycle 1 and Day 1 of Cycles 4, 6, 8, 10, and 12. Each cycle was of 28 days.
52
Chemotherapy-Containing Cohort: Arm B (Venetoclax + BR)
Participants received venetoclax 800 mg orally once daily continuously for 1 year along with rituximab 375 mg/m\^2 IV infusion on Day 1 of each 28-day cycle and bendamustine 90 mg/m\^2 IV infusion on Days 1 and 2 of each 28-day cycle, for 6 cycles.
51
Chemotherapy-Containing Cohort: Arm C (BR)
Participants received rituximab 375 mg/m\^2 IV infusion on Day 1 of each 28-day cycle and bendamustine 90 mg/m\^2 IV infusion on Days 1 and 2 of each 28-day cycle, for 6 cycles.
51
Total163

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003
Overall StudyAdverse Event2121
Overall StudyDeath0312
Overall StudyOther0171
Overall StudyPhysician Decision0103
Overall StudyProgressive Disease4421922
Overall StudyWithdrawal by Subject0033

Baseline characteristics

CharacteristicChemotherapy-Containing Cohort:Safety Run-In (Venetoclax + BR)Chemotherapy-Free Cohort: Arm A (Venetoclax + Rituximab)Chemotherapy-Containing Cohort: Arm B (Venetoclax + BR)Chemotherapy-Containing Cohort: Arm C (BR)Total
Age, Continuous57.9 years
STANDARD_DEVIATION 12.7
61.9 years
STANDARD_DEVIATION 12
64.9 years
STANDARD_DEVIATION 9.8
61.0 years
STANDARD_DEVIATION 11.6
62.3 years
STANDARD_DEVIATION 11.3
Sex: Female, Male
Female
5 Participants25 Participants16 Participants21 Participants67 Participants
Sex: Female, Male
Male
4 Participants27 Participants35 Participants30 Participants96 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —— / —
other
Total, other adverse events
9 / 949 / 5249 / 4948 / 50
serious
Total, serious adverse events
4 / 916 / 5226 / 4912 / 50

Outcome results

Primary

Percentage of Participants With Complete Metabolic Response (CMR) According to Independent Review Committee (IRC) as Per Lugano Classification, Using Positron Emission Tomography (PET) Scan at Primary Response Assessment (PRA)

CMR: a score 1 (no uptake above background), 2 (uptake less than or equal to \[\<=\] mediastinum), or 3 (uptake less than \[\<\] mediastinum but \<=liver) with or without a residual mass on PET 5-point scale (5-PS), for lymph nodes and extralymphatic sites with no new lesions and no evidence of fluorodeoxyglucose (FDG)-avid disease in bone marrow. Assessment was performed by an IRC according to Lugano classification using PET scan. 95% confidence interval (CI) for percentage of responders was calculated using Clopper-Pearson method.

Time frame: 6-8 weeks after Cycle 6 Day 1 (PRA) (Cycle length = 28 days)

Population: ITT population

ArmMeasureValue (NUMBER)
Chemotherapy-Containing Cohort:Safety Run-In (Venetoclax + BR)Percentage of Participants With Complete Metabolic Response (CMR) According to Independent Review Committee (IRC) as Per Lugano Classification, Using Positron Emission Tomography (PET) Scan at Primary Response Assessment (PRA)55.6 percentage of participants
Chemotherapy-Free Cohort: Arm A (Venetoclax + Rituximab)Percentage of Participants With Complete Metabolic Response (CMR) According to Independent Review Committee (IRC) as Per Lugano Classification, Using Positron Emission Tomography (PET) Scan at Primary Response Assessment (PRA)11.5 percentage of participants
Chemotherapy-Containing Cohort: Arm B (Venetoclax + BR)Percentage of Participants With Complete Metabolic Response (CMR) According to Independent Review Committee (IRC) as Per Lugano Classification, Using Positron Emission Tomography (PET) Scan at Primary Response Assessment (PRA)74.5 percentage of participants
Chemotherapy-Containing Cohort: Arm C (BR)Percentage of Participants With Complete Metabolic Response (CMR) According to Independent Review Committee (IRC) as Per Lugano Classification, Using Positron Emission Tomography (PET) Scan at Primary Response Assessment (PRA)70.6 percentage of participants
95% CI: [-13.38, 21.23]
Secondary

Apparent Clearance (CL) of Venetoclax

CL is a quantitative measure of the rate at which a drug substance is removed from the body.

Time frame: Pre-dose (within 30 minutes), and 2, 4, 6, 8 hours post-dose on Cycle 1 Day 1; pre-dose (within 30 minutes) on Cycle 1 Days 8, 15, 22; pre-dose (within 30 minutes) and 4 hours post-dose on Day 1 of Cycles 4 and 6 (Cycle length = 28 days)

Population: The data could not be collected as the timepoints for pharmacokinetics collection and the daily dosing of venetoclax did not permit an assessment of CL.

Secondary

Apparent Volume of Distribution (Vd) of Venetoclax

Vd was defined as the theoretical volume in which the total amount of drug would need to be uniformly distributed to produce the desired plasma concentration of a drug.

Time frame: Pre-dose (within 30 minutes), and 2, 4, 6, 8 hours post-dose on Cycle 1 Day 1; pre-dose (within 30 minutes) on Cycle 1 Days 8, 15, 22; pre-dose (within 30 minutes) and 4 hours post-dose on Day 1 of Cycles 4 and 6 (Cycle length = 28 days)

Population: The data could not be collected as the timepoints for pharmacokinetics collection and the daily dosing of venetoclax did not permit an assessment of Vd.

Secondary

Area Under the Plasma Concentration-Time Curve From Time 0 to 8 Hours Post Dose (AUC0-8h) of Venetoclax

Area under the plasma concentration versus time curve from time 0 (pre-dose) to 8 hours post dose (AUC0-8h).

Time frame: Pre-dose (within 30 minutes), and 2, 4, 6, 8 hours post-dose on Cycle 1 Day 1; pre-dose (within 30 minutes) on Cycle 1 Days 8, 15, 22; pre-dose (within 30 minutes) and 4 hours post-dose on Day 1 of Cycles 4 and 6 (Cycle length = 28 days)

Population: Pharmacokinetic-evaluable population. 'Overall number of participants analyzed'=those evaluable for this outcome measure.

ArmMeasureValue (MEAN)Dispersion
Chemotherapy-Containing Cohort:Safety Run-In (Venetoclax + BR)Area Under the Plasma Concentration-Time Curve From Time 0 to 8 Hours Post Dose (AUC0-8h) of Venetoclax5240 hours*ng/mLStandard Deviation 1860
Chemotherapy-Free Cohort: Arm A (Venetoclax + Rituximab)Area Under the Plasma Concentration-Time Curve From Time 0 to 8 Hours Post Dose (AUC0-8h) of Venetoclax4820 hours*ng/mLStandard Deviation 1980
Chemotherapy-Containing Cohort: Arm B (Venetoclax + BR)Area Under the Plasma Concentration-Time Curve From Time 0 to 8 Hours Post Dose (AUC0-8h) of Venetoclax5330 hours*ng/mLStandard Deviation 2270
Secondary

Area Under the Plasma Concentration-Time Curve From Time 0 to Last Observed Concentration (AUClast) of Venetoclax

Area under the plasma concentration versus time curve from zero to the last measured concentration (AUClast).

Time frame: Pre-dose (within 30 minutes), and 2, 4, 6, 8 hours post-dose on Cycle 1 Day 1; pre-dose (within 30 minutes) on Cycle 1 Days 8, 15, 22; pre-dose (within 30 minutes) and 4 hours post-dose on Day 1 of Cycles 4 and 6 (Cycle length = 28 days)

Population: Pharmacokinetic-evaluable population

ArmMeasureValue (MEAN)Dispersion
Chemotherapy-Containing Cohort:Safety Run-In (Venetoclax + BR)Area Under the Plasma Concentration-Time Curve From Time 0 to Last Observed Concentration (AUClast) of Venetoclax5310 hours*ng/mLStandard Deviation 1730
Chemotherapy-Free Cohort: Arm A (Venetoclax + Rituximab)Area Under the Plasma Concentration-Time Curve From Time 0 to Last Observed Concentration (AUClast) of Venetoclax4950 hours*ng/mLStandard Deviation 1950
Chemotherapy-Containing Cohort: Arm B (Venetoclax + BR)Area Under the Plasma Concentration-Time Curve From Time 0 to Last Observed Concentration (AUClast) of Venetoclax5500 hours*ng/mLStandard Deviation 2270
Secondary

Duration of Response (DOR) According to Investigator as Per Lugano Classification, Using PET or CT Scan

DOR was defined as time from CMR/CR or PMR/PR until progressive disease (PD) or death due to any cause. CMR, CR, PMR, and PR have been defined in previous endpoints, and are not repeated here due to space constraint. PD: a score 4 (uptake moderately \>liver) or 5 (uptake markedly \>liver and/or new lesions) with increase in intensity of uptake from baseline on PET 5-PS for individual target nodes/nodal lesions; new FDG-avid foci for extranodal lesions; new FDG-avid foci consistent with lymphoma for new lesions; or new or recurrent FDG-avid foci for bone marrow. Assessment was performed by Investigator according to Lugano classification using PET scan or CT scan (if PET is missing). DOR was calculated using Kaplan-Meier method.

Time frame: From CMR or PMR until disease progression or death due to any cause (assessed up to approximately 2.5 years)

Population: ITT population. 'Overall number of participants analyzed'=those evaluable for this outcome measure.

ArmMeasureValue (MEDIAN)
Chemotherapy-Containing Cohort:Safety Run-In (Venetoclax + BR)Duration of Response (DOR) According to Investigator as Per Lugano Classification, Using PET or CT Scan32.46 months
Chemotherapy-Free Cohort: Arm A (Venetoclax + Rituximab)Duration of Response (DOR) According to Investigator as Per Lugano Classification, Using PET or CT Scan15.79 months
Chemotherapy-Containing Cohort: Arm B (Venetoclax + BR)Duration of Response (DOR) According to Investigator as Per Lugano Classification, Using PET or CT Scan24.87 months
Chemotherapy-Containing Cohort: Arm C (BR)Duration of Response (DOR) According to Investigator as Per Lugano Classification, Using PET or CT Scan15.64 months
Comparison: Stratified Analysis: Strata were disease burden and DOR of prior cancer therapy.95% CI: [0.38, 1.27]
Comparison: Unstratified Analysis95% CI: [0.43, 1.4]
Secondary

Event-Free Survival (EFS) According to Investigator as Per Lugano Classification, Using PET or CT Scan

EFS was defined as the period from the date of treatment initiation (Safety Run-in and Arm A) or randomization date (Arms B and C) to the date of disease progression, death, or start of a new anti-lymphoma therapy whichever occurred first. PD: a score 4 (uptake moderately \>liver) or 5 (uptake markedly \>liver and/or new lesions) with increase in intensity of uptake from baseline on PET 5-PS for individual target nodes/nodal lesions; new FDG-avid foci for extranodal lesions; new FDG-avid foci consistent with lymphoma for new lesions; or new or recurrent FDG-avid foci for bone marrow. Assessment was performed by Investigator according to Lugano classification using PET or CT scan. EFS was calculated using Kaplan-Meier method.

Time frame: Baseline until disease progression, death, or start of a new anti-lymphoma therapy whichever occurred first (assessed up to approximately 2.5 years)

Population: ITT population

ArmMeasureValue (MEDIAN)
Chemotherapy-Containing Cohort:Safety Run-In (Venetoclax + BR)Event-Free Survival (EFS) According to Investigator as Per Lugano Classification, Using PET or CT Scan35.09 months
Chemotherapy-Free Cohort: Arm A (Venetoclax + Rituximab)Event-Free Survival (EFS) According to Investigator as Per Lugano Classification, Using PET or CT Scan6.57 months
Chemotherapy-Containing Cohort: Arm B (Venetoclax + BR)Event-Free Survival (EFS) According to Investigator as Per Lugano Classification, Using PET or CT Scan27.63 months
Chemotherapy-Containing Cohort: Arm C (BR)Event-Free Survival (EFS) According to Investigator as Per Lugano Classification, Using PET or CT Scan18.43 months
Comparison: Stratified Analysis: Strata were disease burden and EFS of prior cancer therapy.95% CI: [0.38, 1.24]
Comparison: Unstratified Analysis95% CI: [0.43, 1.36]
Secondary

Maximum Plasma Concentration (Cmax) of Venetoclax

Time frame: Pre-dose (within 30 minutes), and 2, 4, 6, 8 hours post-dose on Cycle 1 Day 1; pre-dose (within 30 minutes) on Cycle 1 Days 8, 15, 22; pre-dose (within 30 minutes) and 4 hours post-dose on Day 1 of Cycles 4 and 6 (Cycle length = 28 days)

Population: Pharmacokinetic-evaluable population

ArmMeasureValue (MEAN)Dispersion
Chemotherapy-Containing Cohort:Safety Run-In (Venetoclax + BR)Maximum Plasma Concentration (Cmax) of Venetoclax1350 nanograms per milliliter (ng/mL)Standard Deviation 427
Chemotherapy-Free Cohort: Arm A (Venetoclax + Rituximab)Maximum Plasma Concentration (Cmax) of Venetoclax1220 nanograms per milliliter (ng/mL)Standard Deviation 478
Chemotherapy-Containing Cohort: Arm B (Venetoclax + BR)Maximum Plasma Concentration (Cmax) of Venetoclax1340 nanograms per milliliter (ng/mL)Standard Deviation 460
Secondary

Overall Survival (OS)

OS was defined as the period from the date of treatment initiation (Safety Run-in and Arm A) or randomization date (Arms B and C) to death due to any cause. For participants who are alive, OS was censored at the last contact. OS was calculated using Kaplan-Meier method.

Time frame: Baseline until death due to any cause (assessed up to approximately 2.5 years)

Population: ITT population

ArmMeasureValue (MEDIAN)
Chemotherapy-Containing Cohort:Safety Run-In (Venetoclax + BR)Overall Survival (OS)NA months
Chemotherapy-Free Cohort: Arm A (Venetoclax + Rituximab)Overall Survival (OS)NA months
Chemotherapy-Containing Cohort: Arm B (Venetoclax + BR)Overall Survival (OS)NA months
Chemotherapy-Containing Cohort: Arm C (BR)Overall Survival (OS)NA months
Comparison: Stratified Analysis: Strata were disease burden and OS of prior cancer therapy.95% CI: [0.04, 5.37]
Comparison: Unstratified Analysis95% CI: [0.05, 5.63]
Secondary

Percentage of Participants Who Died Due to Any Cause

Time frame: Baseline until death due to any cause (assessed up to approximately 2.5 years

Population: ITT population

ArmMeasureValue (NUMBER)
Chemotherapy-Containing Cohort:Safety Run-In (Venetoclax + BR)Percentage of Participants Who Died Due to Any Cause0 percentage of participants
Chemotherapy-Free Cohort: Arm A (Venetoclax + Rituximab)Percentage of Participants Who Died Due to Any Cause5.8 percentage of participants
Chemotherapy-Containing Cohort: Arm B (Venetoclax + BR)Percentage of Participants Who Died Due to Any Cause2.0 percentage of participants
Chemotherapy-Containing Cohort: Arm C (BR)Percentage of Participants Who Died Due to Any Cause3.9 percentage of participants
Secondary

Percentage of Participants With CMR According to Investigator as Per Lugano Classification, Using PET Scan at PRA

CMR: a score 1 (no uptake above background), 2 (uptake \<=mediastinum), or 3 (\<mediastinum but \<=liver) with or without a residual mass on PET 5-PS, for lymph nodes and extralymphatic sites with no new lesions and no evidence of FDG-avid disease in bone marrow. Assessment was performed by Investigator according to Lugano classification using PET scan. 95% CI for percentage of responders was calculated using Clopper-Pearson method.

Time frame: 4-10 weeks after Cycle 6 Day 1 (Cycle length = 28 days)

Population: ITT population

ArmMeasureValue (NUMBER)
Chemotherapy-Containing Cohort:Safety Run-In (Venetoclax + BR)Percentage of Participants With CMR According to Investigator as Per Lugano Classification, Using PET Scan at PRA55.6 percentage of participants
Chemotherapy-Free Cohort: Arm A (Venetoclax + Rituximab)Percentage of Participants With CMR According to Investigator as Per Lugano Classification, Using PET Scan at PRA15.4 percentage of participants
Chemotherapy-Containing Cohort: Arm B (Venetoclax + BR)Percentage of Participants With CMR According to Investigator as Per Lugano Classification, Using PET Scan at PRA70.6 percentage of participants
Chemotherapy-Containing Cohort: Arm C (BR)Percentage of Participants With CMR According to Investigator as Per Lugano Classification, Using PET Scan at PRA68.6 percentage of participants
95% CI: [-15.89, 19.81]
Secondary

Percentage of Participants With CMR According to Investigator as Per Lugano Classification, Using PET Scan at Year 1

CMR: a score 1 (no uptake above background), 2 (uptake \<=mediastinum), or 3 (\<mediastinum but \<=liver) with or without a residual mass on PET 5-PS, for lymph nodes and extralymphatic sites with no new lesions and no evidence of FDG-avid disease in bone marrow. Assessment was performed by Investigator according to Lugano classification using PET scan. 95% CI for percentage of responders was calculated using Clopper-Pearson method.

Time frame: 48-56 weeks after Cycle 1 Day 1 (Cycle length = 28 days)

Population: ITT population

ArmMeasureValue (NUMBER)
Chemotherapy-Containing Cohort:Safety Run-In (Venetoclax + BR)Percentage of Participants With CMR According to Investigator as Per Lugano Classification, Using PET Scan at Year 155.6 percentage of participants
Chemotherapy-Free Cohort: Arm A (Venetoclax + Rituximab)Percentage of Participants With CMR According to Investigator as Per Lugano Classification, Using PET Scan at Year 117.3 percentage of participants
Chemotherapy-Containing Cohort: Arm B (Venetoclax + BR)Percentage of Participants With CMR According to Investigator as Per Lugano Classification, Using PET Scan at Year 139.2 percentage of participants
Chemotherapy-Containing Cohort: Arm C (BR)Percentage of Participants With CMR According to Investigator as Per Lugano Classification, Using PET Scan at Year 147.1 percentage of participants
95% CI: [-27.01, 11.32]
Secondary

Percentage of Participants With CMR According to IRC as Per Lugano Classification, Using PET Scan at Year 1

CMR: a score 1 (no uptake above background), 2 (uptake \<=mediastinum), or 3 (uptake \<mediastinum but \<=liver) with or without a residual mass on PET 5-PS, for lymph nodes and extralymphatic sites with no new lesions and no evidence of FDG-avid disease in bone marrow. Assessment was performed by an IRC according to Lugano classification using PET scan. 95% CI for percentage of responders was calculated using Clopper-Pearson method.

Time frame: 48-56 weeks after Cycle 1 Day 1 (Cycle length = 28 days)

Population: ITT population

ArmMeasureValue (NUMBER)
Chemotherapy-Containing Cohort:Safety Run-In (Venetoclax + BR)Percentage of Participants With CMR According to IRC as Per Lugano Classification, Using PET Scan at Year 155.6 percentage of participants
Chemotherapy-Free Cohort: Arm A (Venetoclax + Rituximab)Percentage of Participants With CMR According to IRC as Per Lugano Classification, Using PET Scan at Year 121.2 percentage of participants
Chemotherapy-Containing Cohort: Arm B (Venetoclax + BR)Percentage of Participants With CMR According to IRC as Per Lugano Classification, Using PET Scan at Year 141.2 percentage of participants
Chemotherapy-Containing Cohort: Arm C (BR)Percentage of Participants With CMR According to IRC as Per Lugano Classification, Using PET Scan at Year 139.2 percentage of participants
95% CI: [-17.07, 20.99]
Secondary

Percentage of Participants With Complete Response (CR) According to IRC as Per Lugano Classification, Using Computed Tomography (CT) Scan

CR: defined as reduction of longest transverse diameter of lesion (LDi) of target nodes/nodal masses to \<=1.5 centimeters (cm), and no extralymphatic sites of disease; absence of non-measured lesions and new lesions; reduction of enlarged organs to normal; and normal/immunohistochemistry (IHC)-negative bone marrow morphology. Assessment was performed by an IRC according to Lugano classification using CT scan. 95% CI for percentage of responders was calculated using Clopper-Pearson method.

Time frame: 6-8 weeks after Cycle 6 Day 1 and 48-56 weeks after Cycle 1 Day 1 (Cycle length = 28 days)

Population: ITT population

ArmMeasureGroupValue (NUMBER)
Chemotherapy-Containing Cohort:Safety Run-In (Venetoclax + BR)Percentage of Participants With Complete Response (CR) According to IRC as Per Lugano Classification, Using Computed Tomography (CT) Scan6-8 weeks after Cycle 6 Day 144.4 percentage of participants
Chemotherapy-Containing Cohort:Safety Run-In (Venetoclax + BR)Percentage of Participants With Complete Response (CR) According to IRC as Per Lugano Classification, Using Computed Tomography (CT) ScanYear 155.6 percentage of participants
Chemotherapy-Free Cohort: Arm A (Venetoclax + Rituximab)Percentage of Participants With Complete Response (CR) According to IRC as Per Lugano Classification, Using Computed Tomography (CT) ScanYear 113.2 percentage of participants
Chemotherapy-Free Cohort: Arm A (Venetoclax + Rituximab)Percentage of Participants With Complete Response (CR) According to IRC as Per Lugano Classification, Using Computed Tomography (CT) Scan6-8 weeks after Cycle 6 Day 15.7 percentage of participants
Chemotherapy-Containing Cohort: Arm B (Venetoclax + BR)Percentage of Participants With Complete Response (CR) According to IRC as Per Lugano Classification, Using Computed Tomography (CT) Scan6-8 weeks after Cycle 6 Day 139.2 percentage of participants
Chemotherapy-Containing Cohort: Arm B (Venetoclax + BR)Percentage of Participants With Complete Response (CR) According to IRC as Per Lugano Classification, Using Computed Tomography (CT) ScanYear 127.5 percentage of participants
Chemotherapy-Containing Cohort: Arm C (BR)Percentage of Participants With Complete Response (CR) According to IRC as Per Lugano Classification, Using Computed Tomography (CT) Scan6-8 weeks after Cycle 6 Day 125.5 percentage of participants
Chemotherapy-Containing Cohort: Arm C (BR)Percentage of Participants With Complete Response (CR) According to IRC as Per Lugano Classification, Using Computed Tomography (CT) ScanYear 123.5 percentage of participants
Comparison: At 6-8 weeks after Cycle 6 Day 195% CI: [-4.24, 31.69]
Comparison: At Year 195% CI: [-12.98, 20.82]
Secondary

Percentage of Participants With CR According to Investigator as Per Lugano Classification, Using CT Scan

CR: defined as reduction of LDi of target nodes/nodal masses to \<=1.5 cm, and no extralymphatic sites of disease; absence of non-measured lesions and new lesions; reduction of enlarged organs to normal; and normal/IHC-negative bone marrow morphology. Assessment was performed by Investigator according to Lugano classification using CT scan. 95% CI for percentage of responders was calculated using Clopper-Pearson method.

Time frame: 4-10 weeks after Cycle 6 Day 1 and 48-56 weeks after Cycle 1 Day 1 (Cycle length = 28 days)

Population: ITT population

ArmMeasureGroupValue (NUMBER)
Chemotherapy-Containing Cohort:Safety Run-In (Venetoclax + BR)Percentage of Participants With CR According to Investigator as Per Lugano Classification, Using CT Scan4-10 weeks after Cycle 6 Day 122.2 percentage of participants
Chemotherapy-Containing Cohort:Safety Run-In (Venetoclax + BR)Percentage of Participants With CR According to Investigator as Per Lugano Classification, Using CT ScanYear 133.3 percentage of participants
Chemotherapy-Free Cohort: Arm A (Venetoclax + Rituximab)Percentage of Participants With CR According to Investigator as Per Lugano Classification, Using CT ScanYear 15.7 percentage of participants
Chemotherapy-Free Cohort: Arm A (Venetoclax + Rituximab)Percentage of Participants With CR According to Investigator as Per Lugano Classification, Using CT Scan4-10 weeks after Cycle 6 Day 15.7 percentage of participants
Chemotherapy-Containing Cohort: Arm B (Venetoclax + BR)Percentage of Participants With CR According to Investigator as Per Lugano Classification, Using CT Scan4-10 weeks after Cycle 6 Day 115.7 percentage of participants
Chemotherapy-Containing Cohort: Arm B (Venetoclax + BR)Percentage of Participants With CR According to Investigator as Per Lugano Classification, Using CT ScanYear 113.7 percentage of participants
Chemotherapy-Containing Cohort: Arm C (BR)Percentage of Participants With CR According to Investigator as Per Lugano Classification, Using CT Scan4-10 weeks after Cycle 6 Day 131.4 percentage of participants
Chemotherapy-Containing Cohort: Arm C (BR)Percentage of Participants With CR According to Investigator as Per Lugano Classification, Using CT ScanYear 121.6 percentage of participants
Comparison: At 4-10 weeks after Cycle 6 Day 195% CI: [-31.87, 0.49]
Comparison: At Year 195% CI: [-22.56, 6.87]
Secondary

Percentage of Participants With Disease Progression (According to Investigator as Per Lugano Classification, Using PET or CT Scan), Death, or Start of a New Anti-lymphoma Therapy

PD: a score 4 (uptake moderately \>liver) or 5 (uptake markedly \>liver and/or new lesions) with increase in intensity of uptake from baseline on PET 5-PS for individual target nodes/nodal lesions; new FDG-avid foci for extranodal lesions; new FDG-avid foci consistent with lymphoma for new lesions; or new or recurrent FDG-avid foci for bone marrow. Assessment was performed by Investigator according to Lugano classification using PET or CT scan.

Time frame: Baseline until disease progression, death, or start of a new anti-lymphoma therapy whichever occurred first (assessed up to approximately 2.5 years)

Population: ITT population

ArmMeasureValue (NUMBER)
Chemotherapy-Containing Cohort:Safety Run-In (Venetoclax + BR)Percentage of Participants With Disease Progression (According to Investigator as Per Lugano Classification, Using PET or CT Scan), Death, or Start of a New Anti-lymphoma Therapy44.4 percentage of participants
Chemotherapy-Free Cohort: Arm A (Venetoclax + Rituximab)Percentage of Participants With Disease Progression (According to Investigator as Per Lugano Classification, Using PET or CT Scan), Death, or Start of a New Anti-lymphoma Therapy86.5 percentage of participants
Chemotherapy-Containing Cohort: Arm B (Venetoclax + BR)Percentage of Participants With Disease Progression (According to Investigator as Per Lugano Classification, Using PET or CT Scan), Death, or Start of a New Anti-lymphoma Therapy41.2 percentage of participants
Chemotherapy-Containing Cohort: Arm C (BR)Percentage of Participants With Disease Progression (According to Investigator as Per Lugano Classification, Using PET or CT Scan), Death, or Start of a New Anti-lymphoma Therapy52.9 percentage of participants
Secondary

Percentage of Participants With Disease Progression (According to Investigator as Per Lugano Classification, Using PET or CT Scan) or Death

PD: a score 4 (uptake moderately \>liver) or 5 (uptake markedly \>liver and/or new lesions) with increase in intensity of uptake from baseline on PET 5-PS for individual target nodes/nodal lesions; new FDG-avid foci for extranodal lesions; new FDG-avid foci consistent with lymphoma for new lesions; or new or recurrent FDG-avid foci for bone marrow. Assessment was performed by Investigator according to Lugano classification using PET or CT scan.

Time frame: Baseline until disease progression or death due to any cause (assessed up to approximately 2.5 years)

Population: ITT population

ArmMeasureValue (NUMBER)
Chemotherapy-Containing Cohort:Safety Run-In (Venetoclax + BR)Percentage of Participants With Disease Progression (According to Investigator as Per Lugano Classification, Using PET or CT Scan) or Death44.4 percentage of participants
Chemotherapy-Free Cohort: Arm A (Venetoclax + Rituximab)Percentage of Participants With Disease Progression (According to Investigator as Per Lugano Classification, Using PET or CT Scan) or Death86.5 percentage of participants
Chemotherapy-Containing Cohort: Arm B (Venetoclax + BR)Percentage of Participants With Disease Progression (According to Investigator as Per Lugano Classification, Using PET or CT Scan) or Death41.2 percentage of participants
Chemotherapy-Containing Cohort: Arm C (BR)Percentage of Participants With Disease Progression (According to Investigator as Per Lugano Classification, Using PET or CT Scan) or Death52.9 percentage of participants
Secondary

Percentage of Participants With Objective Response (OR) According to IRC as Per Lugano Classification, Using PET Scan

OR was defined as CMR or Partial Metabolic Response (PMR). CMR: a score 1 (no uptake above background), 2 (uptake \<=mediastinum), or 3 (\<mediastinum but \<=liver) with or without a residual mass on PET 5-PS, for lymph nodes and extralymphatic sites with no new lesions and no evidence of FDG-avid disease in bone marrow. PMR: a score 4 (uptake moderately greater than \[\>\] liver) or 5 (uptake markedly \>liver and/or new lesions) with reduced uptake compared with baseline and residual mass(es) of any size on PET 5-PS for lymph nodes and extralymphatic sites with no new lesions and reduced residual uptake in bone marrow compared with baseline. Assessment was performed by an IRC according to Lugano classification using PET scan. 95% CI for percentage of responders was calculated using Clopper-Pearson method.

Time frame: 6-8 weeks after Cycle 6 Day 1 and 48-56 weeks after Cycle 1 Day 1 (Cycle length = 28 days)

Population: ITT population

ArmMeasureGroupValue (NUMBER)
Chemotherapy-Containing Cohort:Safety Run-In (Venetoclax + BR)Percentage of Participants With Objective Response (OR) According to IRC as Per Lugano Classification, Using PET Scan6-8 weeks after Cycle 6 Day 155.6 percentage of participants
Chemotherapy-Containing Cohort:Safety Run-In (Venetoclax + BR)Percentage of Participants With Objective Response (OR) According to IRC as Per Lugano Classification, Using PET ScanYear 166.7 percentage of participants
Chemotherapy-Free Cohort: Arm A (Venetoclax + Rituximab)Percentage of Participants With Objective Response (OR) According to IRC as Per Lugano Classification, Using PET ScanYear 132.7 percentage of participants
Chemotherapy-Free Cohort: Arm A (Venetoclax + Rituximab)Percentage of Participants With Objective Response (OR) According to IRC as Per Lugano Classification, Using PET Scan6-8 weeks after Cycle 6 Day 121.2 percentage of participants
Chemotherapy-Containing Cohort: Arm B (Venetoclax + BR)Percentage of Participants With Objective Response (OR) According to IRC as Per Lugano Classification, Using PET Scan6-8 weeks after Cycle 6 Day 176.5 percentage of participants
Chemotherapy-Containing Cohort: Arm B (Venetoclax + BR)Percentage of Participants With Objective Response (OR) According to IRC as Per Lugano Classification, Using PET ScanYear 145.1 percentage of participants
Chemotherapy-Containing Cohort: Arm C (BR)Percentage of Participants With Objective Response (OR) According to IRC as Per Lugano Classification, Using PET Scan6-8 weeks after Cycle 6 Day 174.5 percentage of participants
Chemotherapy-Containing Cohort: Arm C (BR)Percentage of Participants With Objective Response (OR) According to IRC as Per Lugano Classification, Using PET ScanYear 151.0 percentage of participants
Secondary

Percentage of Participants With OR According to Investigator as Per Lugano Classification, Using CT Scan

OR was defined as CR or PR. CR: reduction of LDi of target nodes/nodal masses to \<=1.5 cm, and no extralymphatic sites of disease; absence of non-measured lesions and new lesions; reduction of enlarged organs to normal; and normal/IHC-negative bone marrow morphology. PR: \>=50% decrease in SPD of up to 6 target measurable nodes and extra-nodal sites; absence/reduction/no increase in size of non-measured lesions; reduction in length of spleen at least \>50% beyond normal; and no new lesions. Assessment was performed by Investigator according to Lugano classification using CT scan. 95% CI for percentage of responders was calculated using Clopper-Pearson method.

Time frame: 4-10 weeks after Cycle 6 Day 1 and 48-56 weeks after Cycle 1 Day 1 (Cycle length = 28 days)

Population: ITT population

ArmMeasureGroupValue (NUMBER)
Chemotherapy-Containing Cohort:Safety Run-In (Venetoclax + BR)Percentage of Participants With OR According to Investigator as Per Lugano Classification, Using CT Scan4-10 weeks after Cycle 6 Day 155.6 percentage of participants
Chemotherapy-Containing Cohort:Safety Run-In (Venetoclax + BR)Percentage of Participants With OR According to Investigator as Per Lugano Classification, Using CT ScanYear 155.6 percentage of participants
Chemotherapy-Free Cohort: Arm A (Venetoclax + Rituximab)Percentage of Participants With OR According to Investigator as Per Lugano Classification, Using CT ScanYear 128.3 percentage of participants
Chemotherapy-Free Cohort: Arm A (Venetoclax + Rituximab)Percentage of Participants With OR According to Investigator as Per Lugano Classification, Using CT Scan4-10 weeks after Cycle 6 Day 132.1 percentage of participants
Chemotherapy-Containing Cohort: Arm B (Venetoclax + BR)Percentage of Participants With OR According to Investigator as Per Lugano Classification, Using CT Scan4-10 weeks after Cycle 6 Day 174.5 percentage of participants
Chemotherapy-Containing Cohort: Arm B (Venetoclax + BR)Percentage of Participants With OR According to Investigator as Per Lugano Classification, Using CT ScanYear 147.1 percentage of participants
Chemotherapy-Containing Cohort: Arm C (BR)Percentage of Participants With OR According to Investigator as Per Lugano Classification, Using CT Scan4-10 weeks after Cycle 6 Day 178.4 percentage of participants
Chemotherapy-Containing Cohort: Arm C (BR)Percentage of Participants With OR According to Investigator as Per Lugano Classification, Using CT ScanYear 149.0 percentage of participants
Secondary

Percentage of Participants With OR According to Investigator as Per Lugano Classification, Using PET or CT Scan

OR was defined as CMR/CR or PMR/PR. CMR, CR, PMR, and PR have been defined in previous endpoints, and are not repeated here due to space constraint. Assessment was performed by Investigator according to Lugano classification using PET scan or CT scan (if PET is missing).

Time frame: Baseline until disease progression or death due to any cause (assessed up to approximately 2.5 years)

Population: ITT population. 'Overall number of participants analyzed'=those evaluable for this outcome measure.

ArmMeasureValue (NUMBER)
Chemotherapy-Containing Cohort:Safety Run-In (Venetoclax + BR)Percentage of Participants With OR According to Investigator as Per Lugano Classification, Using PET or CT Scan66.7 percentage of participants
Chemotherapy-Free Cohort: Arm A (Venetoclax + Rituximab)Percentage of Participants With OR According to Investigator as Per Lugano Classification, Using PET or CT Scan36.5 percentage of participants
Chemotherapy-Containing Cohort: Arm B (Venetoclax + BR)Percentage of Participants With OR According to Investigator as Per Lugano Classification, Using PET or CT Scan80.4 percentage of participants
Chemotherapy-Containing Cohort: Arm C (BR)Percentage of Participants With OR According to Investigator as Per Lugano Classification, Using PET or CT Scan80.4 percentage of participants
Secondary

Percentage of Participants With OR According to Investigator as Per Lugano Classification, Using PET Scan

OR was defined as CMR or PMR. CMR: a score 1 (no uptake above background), 2 (uptake \<=mediastinum), or 3 (\<mediastinum but \<=liver) with or without a residual mass on PET 5-PS, for lymph nodes and extralymphatic sites with no new lesions and no evidence of FDG-avid disease in bone marrow. PMR: a score 4 (uptake moderately \>liver) or 5 (uptake markedly \>liver and/or new lesions) with reduced uptake compared with baseline and residual mass(es) of any size on PET 5-PS for lymph nodes and extralymphatic sites with no new lesions and reduced residual uptake in bone marrow compared with baseline. Assessment was performed by Investigator according to Lugano classification using PET scan. 95% CI for percentage of responders was calculated using Clopper-Pearson method.

Time frame: 4-10 weeks after Cycle 6 Day 1 and 48-56 weeks after Cycle 1 Day 1 (Cycle length = 28 days)

Population: ITT population

ArmMeasureGroupValue (NUMBER)
Chemotherapy-Containing Cohort:Safety Run-In (Venetoclax + BR)Percentage of Participants With OR According to Investigator as Per Lugano Classification, Using PET ScanYear 155.6 percentage of participants
Chemotherapy-Containing Cohort:Safety Run-In (Venetoclax + BR)Percentage of Participants With OR According to Investigator as Per Lugano Classification, Using PET Scan4-10 weeks after Cycle 6 Day 155.6 percentage of participants
Chemotherapy-Free Cohort: Arm A (Venetoclax + Rituximab)Percentage of Participants With OR According to Investigator as Per Lugano Classification, Using PET ScanYear 121.2 percentage of participants
Chemotherapy-Free Cohort: Arm A (Venetoclax + Rituximab)Percentage of Participants With OR According to Investigator as Per Lugano Classification, Using PET Scan4-10 weeks after Cycle 6 Day 128.8 percentage of participants
Chemotherapy-Containing Cohort: Arm B (Venetoclax + BR)Percentage of Participants With OR According to Investigator as Per Lugano Classification, Using PET Scan4-10 weeks after Cycle 6 Day 176.5 percentage of participants
Chemotherapy-Containing Cohort: Arm B (Venetoclax + BR)Percentage of Participants With OR According to Investigator as Per Lugano Classification, Using PET ScanYear 139.2 percentage of participants
Chemotherapy-Containing Cohort: Arm C (BR)Percentage of Participants With OR According to Investigator as Per Lugano Classification, Using PET ScanYear 149.0 percentage of participants
Chemotherapy-Containing Cohort: Arm C (BR)Percentage of Participants With OR According to Investigator as Per Lugano Classification, Using PET Scan4-10 weeks after Cycle 6 Day 176.5 percentage of participants
Secondary

Percentage of Participants With OR According to IRC as Per Lugano Classification, Using CT Scan

OR was defined as CR or Partial Response (PR). CR: reduction of LDi of target nodes/nodal masses to \<=1.5 cm, and no extralymphatic sites of disease; absence of non-measured lesions and new lesions; reduction of enlarged organs to normal; and normal/IHC-negative bone marrow morphology. PR: greater than or equal to (\>=) 50 percent (%) decrease in sum of the product of the perpendicular diameters (SPD) of up to 6 target measurable nodes and extra-nodal sites; absence/reduction/no increase in size of non-measured lesions; reduction in length of spleen at least \>50% beyond normal; and no new lesions. Assessment was performed by an IRC according to Lugano classification using CT scan. 95% CI for percentage of responders was calculated using Clopper-Pearson method.

Time frame: 6-8 weeks after Cycle 6 Day 1 and 48-56 weeks after Cycle 1 Day 1 (Cycle length = 28 days)

Population: ITT population

ArmMeasureGroupValue (NUMBER)
Chemotherapy-Containing Cohort:Safety Run-In (Venetoclax + BR)Percentage of Participants With OR According to IRC as Per Lugano Classification, Using CT Scan6-8 weeks after Cycle 6 Day 166.7 percentage of participants
Chemotherapy-Containing Cohort:Safety Run-In (Venetoclax + BR)Percentage of Participants With OR According to IRC as Per Lugano Classification, Using CT ScanYear 166.7 percentage of participants
Chemotherapy-Free Cohort: Arm A (Venetoclax + Rituximab)Percentage of Participants With OR According to IRC as Per Lugano Classification, Using CT ScanYear 122.6 percentage of participants
Chemotherapy-Free Cohort: Arm A (Venetoclax + Rituximab)Percentage of Participants With OR According to IRC as Per Lugano Classification, Using CT Scan6-8 weeks after Cycle 6 Day 130.2 percentage of participants
Chemotherapy-Containing Cohort: Arm B (Venetoclax + BR)Percentage of Participants With OR According to IRC as Per Lugano Classification, Using CT Scan6-8 weeks after Cycle 6 Day 180.4 percentage of participants
Chemotherapy-Containing Cohort: Arm B (Venetoclax + BR)Percentage of Participants With OR According to IRC as Per Lugano Classification, Using CT ScanYear 141.2 percentage of participants
Chemotherapy-Containing Cohort: Arm C (BR)Percentage of Participants With OR According to IRC as Per Lugano Classification, Using CT Scan6-8 weeks after Cycle 6 Day 184.3 percentage of participants
Chemotherapy-Containing Cohort: Arm C (BR)Percentage of Participants With OR According to IRC as Per Lugano Classification, Using CT ScanYear 160.8 percentage of participants
Secondary

Progression-Free Survival (PFS) According to Investigator as Per Lugano Classification, Using PET or CT Scan

PFS was defined as the period from the date of treatment initiation (Safety Run-in and Arm A) or randomization date (Arms B and C) until the date of disease progression, or death due to any cause. PD: a score 4 (uptake moderately \>liver) or 5 (uptake markedly \>liver and/or new lesions) with increase in intensity of uptake from baseline on PET 5-PS for individual target nodes/nodal lesions; new FDG-avid foci for extranodal lesions; new FDG-avid foci consistent with lymphoma for new lesions; or new or recurrent FDG-avid foci for bone marrow. Assessment was performed by Investigator according to Lugano classification using PET or CT scan. PFS was calculated using Kaplan-Meier method.

Time frame: Baseline until disease progression or death due to any cause (assessed up to approximately 2.5 years)

Population: ITT population

ArmMeasureValue (MEDIAN)
Chemotherapy-Containing Cohort:Safety Run-In (Venetoclax + BR)Progression-Free Survival (PFS) According to Investigator as Per Lugano Classification, Using PET or CT Scan35.09 months
Chemotherapy-Free Cohort: Arm A (Venetoclax + Rituximab)Progression-Free Survival (PFS) According to Investigator as Per Lugano Classification, Using PET or CT Scan6.57 months
Chemotherapy-Containing Cohort: Arm B (Venetoclax + BR)Progression-Free Survival (PFS) According to Investigator as Per Lugano Classification, Using PET or CT Scan27.63 months
Chemotherapy-Containing Cohort: Arm C (BR)Progression-Free Survival (PFS) According to Investigator as Per Lugano Classification, Using PET or CT Scan18.43 months
Comparison: Stratified Analysis: Strata were disease burden and PFS of prior cancer therapy.95% CI: [0.38, 1.24]
Comparison: Unstratified Analysis95% CI: [0.43, 1.36]
Secondary

Time to Maximum Plasma Concentration (Tmax) of Venetoclax

Time frame: Pre-dose (within 30 minutes), and 2, 4, 6, 8 hours post-dose on Cycle 1 Day 1; pre-dose (within 30 minutes) on Cycle 1 Days 8, 15, 22; pre-dose (within 30 minutes) and 4 hours post-dose on Day 1 of Cycles 4 and 6 (Cycle length = 28 days)

Population: Pharmacokinetic-evaluable population included all enrolled participants with available pharmacokinetic data for venetoclax.

ArmMeasureValue (MEDIAN)
Chemotherapy-Containing Cohort:Safety Run-In (Venetoclax + BR)Time to Maximum Plasma Concentration (Tmax) of Venetoclax8.00 hours
Chemotherapy-Free Cohort: Arm A (Venetoclax + Rituximab)Time to Maximum Plasma Concentration (Tmax) of Venetoclax6.00 hours
Chemotherapy-Containing Cohort: Arm B (Venetoclax + BR)Time to Maximum Plasma Concentration (Tmax) of Venetoclax6.21 hours

Source: ClinicalTrials.gov · Data processed: Mar 6, 2026