Trial Outcomes & Findings for A Study of Pinatuzumab Vedotin (DCDT2980S) Combined With Rituximab or Polatuzumab Vedotin (DCDS4501A) Combined With Rituximab or Obinutuzumab in Participants With Relapsed or Refractory B-Cell Non-Hodgkin's Lymphoma (NHL) (NCT NCT01691898)

Last Updated: 2020-02-21

Results Overview

Tumor response was evaluated according to modified response and progression criteria for NHL published by Cheson et al (2007 and 2014) and confirmed by repeat assessments greater than or equal to (\>/=) 4 weeks after initial documentation. CR was defined as disappearance of all clinical/radiographic evidence of disease, regression of lymph nodes to normal size, absence of splenomegaly, and absence of bone marrow involvement. PR was defined as \>/=50 percent (%) decrease in sum of the products of greatest diameters (SPD) of up to six of the largest dominant lymph nodes, no increase in size of other nodes, liver, or spleen volume, a \>/=50% decrease in SPD of hepatic and splenic nodules, absence of other organ involvement, and no new sites of disease. Participants with insufficient data to determine response were classified as non-responders.

Recruitment status

COMPLETED

Study phase

PHASE1/PHASE2

Target enrollment

231 participants

Primary outcome timeframe

Baseline up to 12 months after the last dose of study treatment (up to approximately 3.5 years)

Results posted on

2020-02-21

Participant Flow

A total of 289 participants were screened, out of which, 231 participants were enrolled into the study.

Participant milestones

Participant milestones
Measure	Arm A (FL+DLBCL): RTX+Pinatuzumab,Then RTX+Polatuzumab Participants with relapsed or refractory (r/r) follicular lymphoma (FL) and diffuse large B-cell lymphoma (DLBCL) received rituximab (RTX) at a dose of 375 milligrams per square meter (mg/m\^2) administered via intravenous (IV) infusion on Day 1 and pinatuzumab vedotin at a dose of 2.4 milligrams per kilogram (mg/kg) administered via IV infusion on Day 2 for the first 2 cycles. RTX and pinatuzumab were administered on the same day (Day 1) in subsequent cycles beginning with the third cycle, in the absence of any infusion-related adverse events. Participants who developed disease progression (PD) were treated with RTX at 375 mg/m\^2 and polatuzumab vedotin at 2.4 mg/kg via IV infusion on Day 1, beginning no later than 42 days after the last dose of the prior study treatment until a second PD event, clinical deterioration, and/or intolerance to the crossover treatment for up to a maximum of 1 year (maximum 17 cycles on an every-21-day schedule).	Arm B (FL+DLBCL): RTX+Polatuzumab,Then RTX+Pinatuzumab Participants with r/r FL and DLBCL received RTX at a dose of 375 mg/m\^2 administered via IV infusion on Day 1 and polatuzumab vedotin at a dose of 2.4 mg/kg administered via IV infusion on Day 2 for the first 2 cycles. RTX and polatuzumab were administered on the same day (Day 1) in subsequent cycles beginning with the third cycle, in the absence of any infusion-related adverse events. Participants who developed PD were treated with RTX at 375 mg/m\^2 and pinatuzumab vedotin at 2.4 mg/kg via IV infusion on Day 1, beginning no later than 42 days after the last dose of the prior study treatment until a second PD event, clinical deterioration, and/or intolerance to the crossover treatment for up to a maximum of 1 year (maximum 17 cycles on an every-21-day schedule).	Cohort C (FL): RTX + Polatuzumab Participants with r/r FL received RTX at a dose of 375 mg/m\^2 administered via IV infusion on Day 1 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first 2 cycles. In the absence of any infusion-related adverse events, RTX and polatuzumab were administered on the same day (Day 1) in subsequent cycles beginning with the third cycle for up to a maximum of 1 year (17 cycles on an every-21-day schedule) or significant toxicity, disease progression, or withdrawal from study.	Cohort E (FL+DLBCL): Obinutuzumab + Polatuzumab Participants with r/r FL and DLBCL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Cohort G (Expansion, FL): Obinutuzumab + Polatuzumab Participants with r/r FL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Cohort H (Expansion, DLBCL): Obinutuzumab + Polatuzumab Participants with r/r DLBCL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.
Overall Study STARTED	63	59	20	9	40	40
Overall Study COMPLETED	16	15	11	4	26	5
Overall Study NOT COMPLETED	47	44	9	5	14	35

Reasons for withdrawal

Reasons for withdrawal
Measure	Arm A (FL+DLBCL): RTX+Pinatuzumab,Then RTX+Polatuzumab Participants with relapsed or refractory (r/r) follicular lymphoma (FL) and diffuse large B-cell lymphoma (DLBCL) received rituximab (RTX) at a dose of 375 milligrams per square meter (mg/m\^2) administered via intravenous (IV) infusion on Day 1 and pinatuzumab vedotin at a dose of 2.4 milligrams per kilogram (mg/kg) administered via IV infusion on Day 2 for the first 2 cycles. RTX and pinatuzumab were administered on the same day (Day 1) in subsequent cycles beginning with the third cycle, in the absence of any infusion-related adverse events. Participants who developed disease progression (PD) were treated with RTX at 375 mg/m\^2 and polatuzumab vedotin at 2.4 mg/kg via IV infusion on Day 1, beginning no later than 42 days after the last dose of the prior study treatment until a second PD event, clinical deterioration, and/or intolerance to the crossover treatment for up to a maximum of 1 year (maximum 17 cycles on an every-21-day schedule).	Arm B (FL+DLBCL): RTX+Polatuzumab,Then RTX+Pinatuzumab Participants with r/r FL and DLBCL received RTX at a dose of 375 mg/m\^2 administered via IV infusion on Day 1 and polatuzumab vedotin at a dose of 2.4 mg/kg administered via IV infusion on Day 2 for the first 2 cycles. RTX and polatuzumab were administered on the same day (Day 1) in subsequent cycles beginning with the third cycle, in the absence of any infusion-related adverse events. Participants who developed PD were treated with RTX at 375 mg/m\^2 and pinatuzumab vedotin at 2.4 mg/kg via IV infusion on Day 1, beginning no later than 42 days after the last dose of the prior study treatment until a second PD event, clinical deterioration, and/or intolerance to the crossover treatment for up to a maximum of 1 year (maximum 17 cycles on an every-21-day schedule).	Cohort C (FL): RTX + Polatuzumab Participants with r/r FL received RTX at a dose of 375 mg/m\^2 administered via IV infusion on Day 1 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first 2 cycles. In the absence of any infusion-related adverse events, RTX and polatuzumab were administered on the same day (Day 1) in subsequent cycles beginning with the third cycle for up to a maximum of 1 year (17 cycles on an every-21-day schedule) or significant toxicity, disease progression, or withdrawal from study.	Cohort E (FL+DLBCL): Obinutuzumab + Polatuzumab Participants with r/r FL and DLBCL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Cohort G (Expansion, FL): Obinutuzumab + Polatuzumab Participants with r/r FL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Cohort H (Expansion, DLBCL): Obinutuzumab + Polatuzumab Participants with r/r DLBCL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.
Overall Study Death	34	32	6	3	8	31
Overall Study Adverse Event	0	1	0	1	1	0
Overall Study Progression of Disease	1	2	1	0	0	1
Overall Study Lost to Follow-up	3	1	0	0	1	0
Overall Study Withdrawal by Subject	9	8	2	1	3	3
Overall Study Non-Compliance	0	0	0	0	1	0

Baseline Characteristics

A Study of Pinatuzumab Vedotin (DCDT2980S) Combined With Rituximab or Polatuzumab Vedotin (DCDS4501A) Combined With Rituximab or Obinutuzumab in Participants With Relapsed or Refractory B-Cell Non-Hodgkin's Lymphoma (NHL)

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure	Arm A (FL+DLBCL): RTX+Pinatuzumab,Then RTX+Polatuzumab n=63 Participants Participants with relapsed or refractory \[r/r\] FL and DLBCL received rituximab (RTX) at a dose of 375 milligrams per square meter (mg/m\^2) administered via intravenous (IV) infusion on Day 1 and pinatuzumab vedotin at a dose of 2.4 milligrams per kilogram (mg/kg) administered via IV infusion on Day 2 for the first 2 cycles. RTX and pinatuzumab were administered on the same day (Day 1) in subsequent cycles beginning with the third cycle, in the absence of any infusion-related adverse events. Participants who developed disease progression (PD) were treated with RTX at 375 mg/m\^2 and polatuzumab vedotin at 2.4 mg/kg via IV infusion on Day 1, beginning no later than 42 days after the last dose of the prior study treatment until a second PD event, clinical deterioration, and/or intolerance to the crossover treatment for up to a maximum of 1 year (maximum 17 cycles on an every-21-day schedule).	Arm B (FL+DLBCL): RTX+Polatuzumab,Then RTX+Pinatuzumab n=59 Participants Participants with r/r FL and DLBCL received RTX at a dose of 375 mg/m\^2 administered via IV infusion on Day 1 and polatuzumab vedotin at a dose of 2.4 mg/kg administered via IV infusion on Day 2 for the first 2 cycles. RTX and polatuzumab were administered on the same day (Day 1) in subsequent cycles beginning with the third cycle, in the absence of any infusion-related adverse events. Participants who developed PD were treated with RTX at 375 mg/m\^2 and pinatuzumab vedotin at 2.4 mg/kg via IV infusion on Day 1, beginning no later than 42 days after the last dose of the prior study treatment until a second PD event, clinical deterioration, and/or intolerance to the crossover treatment for up to a maximum of 1 year (maximum 17 cycles on an every-21-day schedule).	Cohort C (FL): RTX + Polatuzumab n=20 Participants Participants with r/r FL received RTX at a dose of 375 mg/m\^2 administered via IV infusion on Day 1 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first 2 cycles. In the absence of any infusion-related adverse events, RTX and polatuzumab were administered on the same day (Day 1) in subsequent cycles beginning with the third cycle for up to a maximum of 1 year (17 cycles on an every-21-day schedule) or significant toxicity, disease progression, or withdrawal from study.	Cohort E (FL+DLBCL): Obinutuzumab + Polatuzumab n=9 Participants Participants with r/r FL and DLBCL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Cohort G (Expansion, FL): Obinutuzumab + Polatuzumab n=40 Participants Participants with r/r FL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Cohort H (Expansion, DLBCL): Obinutuzumab + Polatuzumab n=40 Participants Participants with r/r DLBCL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Total n=231 Participants Total of all reporting groups
Age, Categorical <=18 years	0 Participants n=5 Participants	0 Participants n=7 Participants	0 Participants n=5 Participants	0 Participants n=4 Participants	0 Participants n=21 Participants	0 Participants n=8 Participants	0 Participants n=8 Participants
Age, Categorical Between 18 and 65 years	29 Participants n=5 Participants	25 Participants n=7 Participants	12 Participants n=5 Participants	4 Participants n=4 Participants	23 Participants n=21 Participants	16 Participants n=8 Participants	109 Participants n=8 Participants
Age, Categorical >=65 years	34 Participants n=5 Participants	34 Participants n=7 Participants	8 Participants n=5 Participants	5 Participants n=4 Participants	17 Participants n=21 Participants	24 Participants n=8 Participants	122 Participants n=8 Participants
Sex: Female, Male Female	27 Participants n=5 Participants	24 Participants n=7 Participants	8 Participants n=5 Participants	2 Participants n=4 Participants	16 Participants n=21 Participants	18 Participants n=8 Participants	95 Participants n=8 Participants
Sex: Female, Male Male	36 Participants n=5 Participants	35 Participants n=7 Participants	12 Participants n=5 Participants	7 Participants n=4 Participants	24 Participants n=21 Participants	22 Participants n=8 Participants	136 Participants n=8 Participants
Ethnicity (NIH/OMB) Hispanic or Latino	2 Participants n=5 Participants	5 Participants n=7 Participants	1 Participants n=5 Participants	0 Participants n=4 Participants	0 Participants n=21 Participants	2 Participants n=8 Participants	10 Participants n=8 Participants
Ethnicity (NIH/OMB) Not Hispanic or Latino	48 Participants n=5 Participants	44 Participants n=7 Participants	19 Participants n=5 Participants	9 Participants n=4 Participants	33 Participants n=21 Participants	36 Participants n=8 Participants	189 Participants n=8 Participants
Ethnicity (NIH/OMB) Unknown or Not Reported	13 Participants n=5 Participants	10 Participants n=7 Participants	0 Participants n=5 Participants	0 Participants n=4 Participants	7 Participants n=21 Participants	2 Participants n=8 Participants	32 Participants n=8 Participants

PRIMARY outcome

Timeframe: Baseline up to 12 months after the last dose of study treatment (up to approximately 3.5 years)

Population: Rituximab Containing Regimens (Arms A and B, Cohort C): Analysis was performed on efficacy-evaluable population, which included all participants with baseline measurable disease and at least one post-baseline tumor assessment after study treatment.

Outcome measures

Outcome measures
Measure	Cohort G (Expansion, FL): Obinutuzumab + Polatuzumab n=39 Participants Participants with r/r FL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Cohort H (Expansion, DLBCL): Obinutuzumab + Polatuzumab n=20 Participants Participants with r/r DLBCL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Cohort E (DLBCL): Obinutuzumab + Polatuzumab n=42 Participants Participants with r/r DLBCL received obinutuzumab via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Arm A (FL): RTX+Pinatuzumab,Then RTX+Polatuzumab n=21 Participants Participants with r/r FL received RTX at a dose of 375 mg/m\^2 administered via IV infusion on Day 1 and pinatuzumab vedotin at a dose of 2.4 mg/kg administered via IV infusion on Day 2 for the first 2 cycles. RTX and pinatuzumab were administered on the same day (Day 1) in subsequent cycles beginning with the third cycle, in the absence of any infusion-related adverse events. Participants who developed PD were treated with RTX at 375 mg/m\^2 and polatuzumab vedotin at 2.4 mg/kg via IV infusion on Day 1, beginning no later than 42 days after the last dose of the prior study treatment until a second PD event, clinical deterioration, and/or intolerance to the crossover treatment for up to a maximum of 1 year (maximum 17 cycles on an every-21-day schedule).	Cohort C (FL): RTX + Polatuzumab n=20 Participants Participants with r/r FL received RTX at a dose of 375 mg/m\^2 administered via IV infusion on Day 1 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first 2 cycles. In the absence of any infusion-related adverse events, RTX and polatuzumab were administered on the same day (Day 1) in subsequent cycles beginning with the third cycle for up to a maximum of 1 year (17 cycles on an every-21-day schedule) or significant toxicity, disease progression, or withdrawal from study.	Cohort H (Expansion, DLBCL): Obinutuzumab + Polatuzumab Participants with r/r DLBCL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.
Percentage of Participants With a Best Overall Response (OR) of Complete Response (CR) or Partial Response (PR) as Determined by Modified Response and Progression Criteria for NHL: Rituximab Containing Regimens (Arms A and B, Cohort C)	53.8 percentage of participants Interval 39.58 to 67.65	70.0 percentage of participants Interval 49.22 to 86.04	59.5 percentage of participants Interval 45.67 to 72.32	61.9 percentage of participants Interval 41.72 to 79.43	75.0 percentage of participants Interval 54.44 to 89.59	—

PRIMARY outcome

Timeframe: First occurrence of objective response up to PD/relapse or death due to any cause, whichever occurred first (up to approximately 3.5 years)

Population: Rituximab Containing Regimens (Arms A and B, Cohort C): Analysis was performed on efficacy-evaluable population participants who achieved objective response.

Tumor response was evaluated according to modified response and progression criteria for NHL published by Cheson et al (2007 and 2014). DOR was defined as the time from the initial documentation of a CR or PR to the time of PD or death. CR was defined as disappearance of all clinical/radiographic evidence of disease, regression of lymph nodes to normal size, absence of splenomegaly, and absence of bone marrow involvement. PR was defined as \>/=50% decrease in SPD of up to six of the largest dominant lymph nodes, no increase in size of other nodes, liver, or spleen volume, a \>/=50% decrease in SPD of hepatic and splenic nodules, absence of other organ involvement, and no new sites of disease. PD was defined as appearance of any new lesion more than 1.5 centimeters (cm) in any axis, at least a 50% increase from nadir in the SPD or longest diameter of any previous lesion or node.

Outcome measures

Outcome measures
Measure	Cohort G (Expansion, FL): Obinutuzumab + Polatuzumab n=21 Participants Participants with r/r FL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Cohort H (Expansion, DLBCL): Obinutuzumab + Polatuzumab n=14 Participants Participants with r/r DLBCL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Cohort E (DLBCL): Obinutuzumab + Polatuzumab n=25 Participants Participants with r/r DLBCL received obinutuzumab via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Arm A (FL): RTX+Pinatuzumab,Then RTX+Polatuzumab n=13 Participants Participants with r/r FL received RTX at a dose of 375 mg/m\^2 administered via IV infusion on Day 1 and pinatuzumab vedotin at a dose of 2.4 mg/kg administered via IV infusion on Day 2 for the first 2 cycles. RTX and pinatuzumab were administered on the same day (Day 1) in subsequent cycles beginning with the third cycle, in the absence of any infusion-related adverse events. Participants who developed PD were treated with RTX at 375 mg/m\^2 and polatuzumab vedotin at 2.4 mg/kg via IV infusion on Day 1, beginning no later than 42 days after the last dose of the prior study treatment until a second PD event, clinical deterioration, and/or intolerance to the crossover treatment for up to a maximum of 1 year (maximum 17 cycles on an every-21-day schedule).	Cohort C (FL): RTX + Polatuzumab n=15 Participants Participants with r/r FL received RTX at a dose of 375 mg/m\^2 administered via IV infusion on Day 1 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first 2 cycles. In the absence of any infusion-related adverse events, RTX and polatuzumab were administered on the same day (Day 1) in subsequent cycles beginning with the third cycle for up to a maximum of 1 year (17 cycles on an every-21-day schedule) or significant toxicity, disease progression, or withdrawal from study.	Cohort H (Expansion, DLBCL): Obinutuzumab + Polatuzumab Participants with r/r DLBCL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.
Duration of Objective Response (DOR) as Determined by Modified Response and Progression Criteria for NHL: Rituximab Containing Regimens (Arms A and B, Cohort C)	13.37 months Interval 0.03 to 35.68	9.36 months Interval 0.03 to 19.35	6.24 months Interval 0.89 to 22.57	6.47 months Interval 0.03 to 23.52	12.85 months Interval 0.03 to 22.11	—

PRIMARY outcome

Timeframe: 6-8 weeks after Cycle 8 Day 1 (cycle length = 21 Days) or last study treatment (maximum up to 27-29 weeks)

Population: Obinutuzumab-Containing Cohorts (Cohorts E, G, and H): Analysis was performed on efficacy-evaluable population. Here, 'Overall Number of Participants Analyzed' signifies the number of participants evaluable for this outcome measure.

Tumor response assessment was performed by an IRC according to modified Lugano classification using PET/CT scan. CR was defined as a score of 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; no new lesions; no evidence of fluorodeoxyglucose (FDG)-avid disease in bone marrow; and normal/immunohistochemistry (IHC)-negative bone marrow morphology. 90% confidence interval (CI) for percentage of responders was calculated using Clopper-Pearson method.

Outcome measures

Outcome measures
Measure	Cohort G (Expansion, FL): Obinutuzumab + Polatuzumab n=34 Participants Participants with r/r FL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Cohort H (Expansion, DLBCL): Obinutuzumab + Polatuzumab n=27 Participants Participants with r/r DLBCL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Cohort E (DLBCL): Obinutuzumab + Polatuzumab n=4 Participants Participants with r/r DLBCL received obinutuzumab via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Arm A (FL): RTX+Pinatuzumab,Then RTX+Polatuzumab n=2 Participants Participants with r/r FL received RTX at a dose of 375 mg/m\^2 administered via IV infusion on Day 1 and pinatuzumab vedotin at a dose of 2.4 mg/kg administered via IV infusion on Day 2 for the first 2 cycles. RTX and pinatuzumab were administered on the same day (Day 1) in subsequent cycles beginning with the third cycle, in the absence of any infusion-related adverse events. Participants who developed PD were treated with RTX at 375 mg/m\^2 and polatuzumab vedotin at 2.4 mg/kg via IV infusion on Day 1, beginning no later than 42 days after the last dose of the prior study treatment until a second PD event, clinical deterioration, and/or intolerance to the crossover treatment for up to a maximum of 1 year (maximum 17 cycles on an every-21-day schedule).	Cohort C (FL): RTX + Polatuzumab Participants with r/r FL received RTX at a dose of 375 mg/m\^2 administered via IV infusion on Day 1 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first 2 cycles. In the absence of any infusion-related adverse events, RTX and polatuzumab were administered on the same day (Day 1) in subsequent cycles beginning with the third cycle for up to a maximum of 1 year (17 cycles on an every-21-day schedule) or significant toxicity, disease progression, or withdrawal from study.	Cohort H (Expansion, DLBCL): Obinutuzumab + Polatuzumab Participants with r/r DLBCL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.
Percentage of Participants With CR at End of Treatment (EOT) Based on Positron Emission Tomographic/Computed Tomography (PET/CT) Assessment Determined by Independent Review Committee (IRC) Per Lugano 2014 Response Criteria: Cohorts E, G, and H	35.3 percentage of participants Interval 21.79 to 50.82	0 percentage of participants Interval 0.0 to 10.5	0 percentage of participants Interval 0.0 to 52.71	50.0 percentage of participants Interval 2.53 to 97.47	—	—

SECONDARY outcome

Timeframe: Baseline, post-baseline (up to approximately 5.5 years)

Population: Analysis was performed on safety-evaluable population (only participants who received pinatuzumab vedotin). Here, 'Overall Number of Participants Analyzed' signifies the number of participants evaluable for this outcome measure and 'Number Analyzed' signifies the number of participants evaluable at specified time points.

Participants provided blood samples for evaluation of ADA. The number of participants with positive results for ADA against pinatuzumab vedotin at Baseline and at any of the post-baseline assessment time-points (overall 1.5 years) was reported. Participants positive at any post-baseline time points were post-baseline evaluable participants determined to have "Treatment-induced ADAs" or "Treatment-enhanced ADA" during the study period. Treatment-induced ADA = a participant with negative or missing Baseline ADA result(s) and at least one positive post-Baseline ADA result. Treatment-enhanced ADA = a participant with positive ADA result at Baseline who has one or more post Baseline titer results that are at least 0.60 titer unit greater than the Baseline titer result.

Outcome measures

Outcome measures
Measure	Cohort G (Expansion, FL): Obinutuzumab + Polatuzumab Participants with r/r FL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Cohort H (Expansion, DLBCL): Obinutuzumab + Polatuzumab Participants with r/r DLBCL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Cohort E (DLBCL): Obinutuzumab + Polatuzumab n=60 Participants Participants with r/r DLBCL received obinutuzumab via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Arm A (FL): RTX+Pinatuzumab,Then RTX+Polatuzumab n=1 Participants Participants with r/r FL received RTX at a dose of 375 mg/m\^2 administered via IV infusion on Day 1 and pinatuzumab vedotin at a dose of 2.4 mg/kg administered via IV infusion on Day 2 for the first 2 cycles. RTX and pinatuzumab were administered on the same day (Day 1) in subsequent cycles beginning with the third cycle, in the absence of any infusion-related adverse events. Participants who developed PD were treated with RTX at 375 mg/m\^2 and polatuzumab vedotin at 2.4 mg/kg via IV infusion on Day 1, beginning no later than 42 days after the last dose of the prior study treatment until a second PD event, clinical deterioration, and/or intolerance to the crossover treatment for up to a maximum of 1 year (maximum 17 cycles on an every-21-day schedule).	Cohort C (FL): RTX + Polatuzumab Participants with r/r FL received RTX at a dose of 375 mg/m\^2 administered via IV infusion on Day 1 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first 2 cycles. In the absence of any infusion-related adverse events, RTX and polatuzumab were administered on the same day (Day 1) in subsequent cycles beginning with the third cycle for up to a maximum of 1 year (17 cycles on an every-21-day schedule) or significant toxicity, disease progression, or withdrawal from study.	Cohort H (Expansion, DLBCL): Obinutuzumab + Polatuzumab Participants with r/r DLBCL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.
Number of Participants With Anti-Drug Antibodies (ADA) to Pinatuzumab Vedotin Baseline	—	—	2 participants	—	—	—
Number of Participants With Anti-Drug Antibodies (ADA) to Pinatuzumab Vedotin Post-baseline	—	—	0 participants	0 participants	—	—

SECONDARY outcome

Timeframe: Baseline, post-baseline (up to approximately 5.5 years)

Population: Analysis was performed on safety-evaluable population (only participants who received polatuzumab vedotin). Here, 'Overall Number of Participants Analyzed' signifies the number of participants evaluable for this outcome measure and 'Number Analyzed' signifies the number of participants evaluable at specified time points.

Participants provided blood samples for evaluation of ADA. The number of participants with positive results for ADA against polatuzumab vedotin at Baseline and at any of the post-baseline assessment time-points (overall 1.5 years) was reported. Participants positive at any post-baseline time points were post-baseline evaluable participants determined to have "Treatment-induced ADAs" or "Treatment-enhanced ADA" during the study period. Treatment-induced ADA = a participant with negative or missing Baseline ADA result(s) and at least one positive post-Baseline ADA result. Treatment-enhanced ADA = a participant with positive ADA result at Baseline who has one or more post Baseline titer results that are at least 0.60 titer unit greater than the Baseline titer result.

Outcome measures

Outcome measures
Measure	Cohort G (Expansion, FL): Obinutuzumab + Polatuzumab n=20 Participants Participants with r/r FL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Cohort H (Expansion, DLBCL): Obinutuzumab + Polatuzumab n=8 Participants Participants with r/r DLBCL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Cohort E (DLBCL): Obinutuzumab + Polatuzumab n=2 Participants Participants with r/r DLBCL received obinutuzumab via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Arm A (FL): RTX+Pinatuzumab,Then RTX+Polatuzumab n=59 Participants Participants with r/r FL received RTX at a dose of 375 mg/m\^2 administered via IV infusion on Day 1 and pinatuzumab vedotin at a dose of 2.4 mg/kg administered via IV infusion on Day 2 for the first 2 cycles. RTX and pinatuzumab were administered on the same day (Day 1) in subsequent cycles beginning with the third cycle, in the absence of any infusion-related adverse events. Participants who developed PD were treated with RTX at 375 mg/m\^2 and polatuzumab vedotin at 2.4 mg/kg via IV infusion on Day 1, beginning no later than 42 days after the last dose of the prior study treatment until a second PD event, clinical deterioration, and/or intolerance to the crossover treatment for up to a maximum of 1 year (maximum 17 cycles on an every-21-day schedule).	Cohort C (FL): RTX + Polatuzumab n=37 Participants Participants with r/r FL received RTX at a dose of 375 mg/m\^2 administered via IV infusion on Day 1 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first 2 cycles. In the absence of any infusion-related adverse events, RTX and polatuzumab were administered on the same day (Day 1) in subsequent cycles beginning with the third cycle for up to a maximum of 1 year (17 cycles on an every-21-day schedule) or significant toxicity, disease progression, or withdrawal from study.	Cohort H (Expansion, DLBCL): Obinutuzumab + Polatuzumab n=36 Participants Participants with r/r DLBCL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.
Number of Participants With ADA to Polatuzumab Vedotin Baseline	0 participants	0 participants	—	1 participants	0 participants	0 participants
Number of Participants With ADA to Polatuzumab Vedotin Post-baseline	0 participants	0 participants	0 participants	0 participants	0 participants	0 participants

SECONDARY outcome

Timeframe: Baseline, post-baseline (up to approximately 5.5 years)

Population: Analysis was performed on safety-evaluable population (only participants who received obinutuzumab). Here, 'Overall Number of Participants Analyzed' signifies the number of participants evaluable for this outcome measure and 'Number Analyzed' signifies the number of participants evaluable at specified time points.

Participants provided blood samples for evaluation of ADA. The number of participants with positive results for ADA against obinutuzumab at Baseline and at any of the post-baseline assessment time-points (overall 1.5 years) was reported. Participants positive at any post-baseline time points were post-baseline evaluable participants determined to have "Treatment-induced ADAs" or "Treatment-enhanced ADA" during the study period. Treatment-induced ADA = a participant with negative or missing Baseline ADA result(s) and at least one positive post-Baseline ADA result. Treatment-enhanced ADA = a participant with positive ADA result at Baseline who has one or more post Baseline titer results that are at least 0.60 titer unit greater than the Baseline titer result.

Outcome measures

Outcome measures
Measure	Cohort G (Expansion, FL): Obinutuzumab + Polatuzumab n=39 Participants Participants with r/r FL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Cohort H (Expansion, DLBCL): Obinutuzumab + Polatuzumab Participants with r/r DLBCL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Cohort E (DLBCL): Obinutuzumab + Polatuzumab n=9 Participants Participants with r/r DLBCL received obinutuzumab via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Arm A (FL): RTX+Pinatuzumab,Then RTX+Polatuzumab n=37 Participants Participants with r/r FL received RTX at a dose of 375 mg/m\^2 administered via IV infusion on Day 1 and pinatuzumab vedotin at a dose of 2.4 mg/kg administered via IV infusion on Day 2 for the first 2 cycles. RTX and pinatuzumab were administered on the same day (Day 1) in subsequent cycles beginning with the third cycle, in the absence of any infusion-related adverse events. Participants who developed PD were treated with RTX at 375 mg/m\^2 and polatuzumab vedotin at 2.4 mg/kg via IV infusion on Day 1, beginning no later than 42 days after the last dose of the prior study treatment until a second PD event, clinical deterioration, and/or intolerance to the crossover treatment for up to a maximum of 1 year (maximum 17 cycles on an every-21-day schedule).	Cohort C (FL): RTX + Polatuzumab Participants with r/r FL received RTX at a dose of 375 mg/m\^2 administered via IV infusion on Day 1 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first 2 cycles. In the absence of any infusion-related adverse events, RTX and polatuzumab were administered on the same day (Day 1) in subsequent cycles beginning with the third cycle for up to a maximum of 1 year (17 cycles on an every-21-day schedule) or significant toxicity, disease progression, or withdrawal from study.	Cohort H (Expansion, DLBCL): Obinutuzumab + Polatuzumab Participants with r/r DLBCL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.
Number of Participants With ADA to Obinutuzumab Baseline	0 participants	—	1 participants	2 participants	—	—
Number of Participants With ADA to Obinutuzumab Post-baseline	0 participants	—	0 participants	0 participants	—	—

SECONDARY outcome

Timeframe: Baseline up to PD or death due to any cause, whichever occurred first (up to approximately 5.5 years)

Population: Rituximab Containing Regimens (Arms A and B, Cohort C): Analysis was performed on efficacy-evaluable population.

Outcome measures

Outcome measures
Measure	Cohort G (Expansion, FL): Obinutuzumab + Polatuzumab n=39 Participants Participants with r/r FL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Cohort H (Expansion, DLBCL): Obinutuzumab + Polatuzumab n=20 Participants Participants with r/r DLBCL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Cohort E (DLBCL): Obinutuzumab + Polatuzumab n=42 Participants Participants with r/r DLBCL received obinutuzumab via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Arm A (FL): RTX+Pinatuzumab,Then RTX+Polatuzumab n=21 Participants Participants with r/r FL received RTX at a dose of 375 mg/m\^2 administered via IV infusion on Day 1 and pinatuzumab vedotin at a dose of 2.4 mg/kg administered via IV infusion on Day 2 for the first 2 cycles. RTX and pinatuzumab were administered on the same day (Day 1) in subsequent cycles beginning with the third cycle, in the absence of any infusion-related adverse events. Participants who developed PD were treated with RTX at 375 mg/m\^2 and polatuzumab vedotin at 2.4 mg/kg via IV infusion on Day 1, beginning no later than 42 days after the last dose of the prior study treatment until a second PD event, clinical deterioration, and/or intolerance to the crossover treatment for up to a maximum of 1 year (maximum 17 cycles on an every-21-day schedule).	Cohort C (FL): RTX + Polatuzumab n=20 Participants Participants with r/r FL received RTX at a dose of 375 mg/m\^2 administered via IV infusion on Day 1 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first 2 cycles. In the absence of any infusion-related adverse events, RTX and polatuzumab were administered on the same day (Day 1) in subsequent cycles beginning with the third cycle for up to a maximum of 1 year (17 cycles on an every-21-day schedule) or significant toxicity, disease progression, or withdrawal from study.	Cohort H (Expansion, DLBCL): Obinutuzumab + Polatuzumab Participants with r/r DLBCL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.
Percentage of Participants With PD as Determined by Modified Response and Progression Criteria for NHL or Death Due to Any Cause: Rituximab Containing Regimens (Arms A and B, Cohort C)	76.9 percentage of participants	55.0 percentage of participants	85.7 percentage of participants	52.4 percentage of participants	60.0 percentage of participants	—

SECONDARY outcome

Timeframe: Baseline up to PD or death due to any cause, whichever occurred first (up to approximately 5.5 years)

Population: Rituximab Containing Regimens (Arms A and B, Cohort C): Analysis was performed on efficacy-evaluable population.

Tumor response was evaluated according to modified response and progression criteria for NHL published by Cheson et al (2007 and 2014) and confirmed by repeat assessments \>/=4 weeks after initial documentation. PD was defined as appearance of any new lesion more than 1.5 cm in any axis, at least a 50% increase from nadir in the SPD or longest diameter of any previous lesion or node. PFS was defined as the time from the date of randomization to the date of PD or death from any cause, whichever occurred first. In absence of PD or death, PFS was censored at the date of the last tumor assessment. Participants with no post-baseline tumor assessment were censored on the date of randomization or date of enrollment. The median PFS was estimated using Kaplan-Meier estimates and the 95% CI for median was computed using the method of Brookmeyer and Crowley.

Outcome measures

Outcome measures
Measure	Cohort G (Expansion, FL): Obinutuzumab + Polatuzumab n=39 Participants Participants with r/r FL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Cohort H (Expansion, DLBCL): Obinutuzumab + Polatuzumab n=20 Participants Participants with r/r DLBCL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Cohort E (DLBCL): Obinutuzumab + Polatuzumab n=42 Participants Participants with r/r DLBCL received obinutuzumab via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Arm A (FL): RTX+Pinatuzumab,Then RTX+Polatuzumab n=21 Participants Participants with r/r FL received RTX at a dose of 375 mg/m\^2 administered via IV infusion on Day 1 and pinatuzumab vedotin at a dose of 2.4 mg/kg administered via IV infusion on Day 2 for the first 2 cycles. RTX and pinatuzumab were administered on the same day (Day 1) in subsequent cycles beginning with the third cycle, in the absence of any infusion-related adverse events. Participants who developed PD were treated with RTX at 375 mg/m\^2 and polatuzumab vedotin at 2.4 mg/kg via IV infusion on Day 1, beginning no later than 42 days after the last dose of the prior study treatment until a second PD event, clinical deterioration, and/or intolerance to the crossover treatment for up to a maximum of 1 year (maximum 17 cycles on an every-21-day schedule).	Cohort C (FL): RTX + Polatuzumab n=20 Participants Participants with r/r FL received RTX at a dose of 375 mg/m\^2 administered via IV infusion on Day 1 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first 2 cycles. In the absence of any infusion-related adverse events, RTX and polatuzumab were administered on the same day (Day 1) in subsequent cycles beginning with the third cycle for up to a maximum of 1 year (17 cycles on an every-21-day schedule) or significant toxicity, disease progression, or withdrawal from study.	Cohort H (Expansion, DLBCL): Obinutuzumab + Polatuzumab Participants with r/r DLBCL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.
Progression-free Survival (PFS) as Determined by Modified Response and Progression Criteria for NHL: Rituximab Containing Regimens (Arms A and B, Cohort C)	5.552 months Interval 4.304 to 12.78	15.277 months Interval 12.189 to 25.133	5.388 months Interval 3.943 to 10.579	12.682 months Interval 8.936 to 27.466	18.103 months Interval 11.598 to 30.259	—

SECONDARY outcome

Timeframe: Baseline up to death due to any cause (from baseline up to study completion date, up to approximately 5.5 years)

Population: Rituximab Containing Regimens (Arms A and B, Cohort C): Analysis was performed on efficacy-evaluable population.

Percentage of participants who died due to any cause was reported.

Outcome measures

Outcome measures
Measure	Cohort G (Expansion, FL): Obinutuzumab + Polatuzumab n=39 Participants Participants with r/r FL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Cohort H (Expansion, DLBCL): Obinutuzumab + Polatuzumab n=20 Participants Participants with r/r DLBCL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Cohort E (DLBCL): Obinutuzumab + Polatuzumab n=42 Participants Participants with r/r DLBCL received obinutuzumab via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Arm A (FL): RTX+Pinatuzumab,Then RTX+Polatuzumab n=21 Participants Participants with r/r FL received RTX at a dose of 375 mg/m\^2 administered via IV infusion on Day 1 and pinatuzumab vedotin at a dose of 2.4 mg/kg administered via IV infusion on Day 2 for the first 2 cycles. RTX and pinatuzumab were administered on the same day (Day 1) in subsequent cycles beginning with the third cycle, in the absence of any infusion-related adverse events. Participants who developed PD were treated with RTX at 375 mg/m\^2 and polatuzumab vedotin at 2.4 mg/kg via IV infusion on Day 1, beginning no later than 42 days after the last dose of the prior study treatment until a second PD event, clinical deterioration, and/or intolerance to the crossover treatment for up to a maximum of 1 year (maximum 17 cycles on an every-21-day schedule).	Cohort C (FL): RTX + Polatuzumab n=20 Participants Participants with r/r FL received RTX at a dose of 375 mg/m\^2 administered via IV infusion on Day 1 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first 2 cycles. In the absence of any infusion-related adverse events, RTX and polatuzumab were administered on the same day (Day 1) in subsequent cycles beginning with the third cycle for up to a maximum of 1 year (17 cycles on an every-21-day schedule) or significant toxicity, disease progression, or withdrawal from study.	Cohort H (Expansion, DLBCL): Obinutuzumab + Polatuzumab Participants with r/r DLBCL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.
Percentage of Participants Who Died Due to Any Cause: Rituximab Containing Regimens (Arms A and B, Cohort C)	61.5 percentage of participants	15.0 percentage of participants	66.7 percentage of participants	23.8 percentage of participants	20.0 percentage of participants	—

SECONDARY outcome

Timeframe: Baseline up to death due to any cause (from baseline up to study completion date, up to approximately 5.5 years)

Population: Rituximab Containing Regimens (Arms A and B, Cohort C): Analysis was performed on efficacy-evaluable population.

OS was defined as the time from the date of randomization or enrollment to the date of death from any cause. The median OS was estimated using Kaplan-Meier estimates and the 95% CI for median was computed using the method of Brookmeyer and Crowley.

Outcome measures

Outcome measures
Measure	Cohort G (Expansion, FL): Obinutuzumab + Polatuzumab n=39 Participants Participants with r/r FL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Cohort H (Expansion, DLBCL): Obinutuzumab + Polatuzumab n=20 Participants Participants with r/r DLBCL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Cohort E (DLBCL): Obinutuzumab + Polatuzumab n=42 Participants Participants with r/r DLBCL received obinutuzumab via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Arm A (FL): RTX+Pinatuzumab,Then RTX+Polatuzumab n=21 Participants Participants with r/r FL received RTX at a dose of 375 mg/m\^2 administered via IV infusion on Day 1 and pinatuzumab vedotin at a dose of 2.4 mg/kg administered via IV infusion on Day 2 for the first 2 cycles. RTX and pinatuzumab were administered on the same day (Day 1) in subsequent cycles beginning with the third cycle, in the absence of any infusion-related adverse events. Participants who developed PD were treated with RTX at 375 mg/m\^2 and polatuzumab vedotin at 2.4 mg/kg via IV infusion on Day 1, beginning no later than 42 days after the last dose of the prior study treatment until a second PD event, clinical deterioration, and/or intolerance to the crossover treatment for up to a maximum of 1 year (maximum 17 cycles on an every-21-day schedule).	Cohort C (FL): RTX + Polatuzumab n=20 Participants Participants with r/r FL received RTX at a dose of 375 mg/m\^2 administered via IV infusion on Day 1 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first 2 cycles. In the absence of any infusion-related adverse events, RTX and polatuzumab were administered on the same day (Day 1) in subsequent cycles beginning with the third cycle for up to a maximum of 1 year (17 cycles on an every-21-day schedule) or significant toxicity, disease progression, or withdrawal from study.	Cohort H (Expansion, DLBCL): Obinutuzumab + Polatuzumab Participants with r/r DLBCL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.
Overall Survival (OS): Rituximab Containing Regimens (Arms A and B, Cohort C)	18.760 months Interval 10.415 to 38.571	NA months Median and corresponding CI could not be estimated because very few participants (\<50%) had the event of interest.	16.493 months Interval 7.458 to 32.46	NA months Interval 44.025 to Median and Upper Limit of CI could not be estimated because very few participants (\<50%) had the event of interest.	NA months Median and corresponding CI could not be estimated because very few participants (\<50%) had the event of interest.	—

SECONDARY outcome

Timeframe: 6-8 weeks after Cycle 8 Day 1 (cycle length = 21 Days) or last study treatment (maximum up to 27-29 weeks)

Tumor response assessment was performed by the investigator according to modified Lugano classification using PET/CT scan. CR was defined as a score of 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; no new lesions; no evidence of FDG-avid disease in bone marrow; and normal/IHC-negative bone marrow morphology. 90% CI for percentage of responders was calculated using Clopper-Pearson method.

Outcome measures

Outcome measures
Measure	Cohort G (Expansion, FL): Obinutuzumab + Polatuzumab n=36 Participants Participants with r/r FL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Cohort H (Expansion, DLBCL): Obinutuzumab + Polatuzumab n=33 Participants Participants with r/r DLBCL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Cohort E (DLBCL): Obinutuzumab + Polatuzumab n=4 Participants Participants with r/r DLBCL received obinutuzumab via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Arm A (FL): RTX+Pinatuzumab,Then RTX+Polatuzumab n=3 Participants Participants with r/r FL received RTX at a dose of 375 mg/m\^2 administered via IV infusion on Day 1 and pinatuzumab vedotin at a dose of 2.4 mg/kg administered via IV infusion on Day 2 for the first 2 cycles. RTX and pinatuzumab were administered on the same day (Day 1) in subsequent cycles beginning with the third cycle, in the absence of any infusion-related adverse events. Participants who developed PD were treated with RTX at 375 mg/m\^2 and polatuzumab vedotin at 2.4 mg/kg via IV infusion on Day 1, beginning no later than 42 days after the last dose of the prior study treatment until a second PD event, clinical deterioration, and/or intolerance to the crossover treatment for up to a maximum of 1 year (maximum 17 cycles on an every-21-day schedule).	Cohort C (FL): RTX + Polatuzumab Participants with r/r FL received RTX at a dose of 375 mg/m\^2 administered via IV infusion on Day 1 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first 2 cycles. In the absence of any infusion-related adverse events, RTX and polatuzumab were administered on the same day (Day 1) in subsequent cycles beginning with the third cycle for up to a maximum of 1 year (17 cycles on an every-21-day schedule) or significant toxicity, disease progression, or withdrawal from study.	Cohort H (Expansion, DLBCL): Obinutuzumab + Polatuzumab Participants with r/r DLBCL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.
Percentage of Participants With CR at EOT Based on PET/CT Assessment as Determined by Investigator Per Lugano 2014 Response Criteria: Obinutuzumab-Containing Cohorts (Cohorts E, G, and H)	33.3 percentage of participants Interval 20.49 to 48.34	15.2 percentage of participants Interval 6.17 to 29.25	25.0 percentage of participants Interval 1.27 to 75.14	66.7 percentage of participants Interval 13.54 to 98.3	—	—

SECONDARY outcome

Timeframe: 6-8 weeks after Cycle 8 Day 1 (cycle length = 21 Days) or last study treatment (maximum up to 27-29 weeks)

Tumor response assessment was performed by an IRC according to modified Lugano classification using PET/CT scan. OR was defined as a response of CR or PR. CR was defined as a score of 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; no new lesions; no evidence of FDG-avid disease in bone marrow; and normal/IHC-negative bone marrow morphology. PR was defined as 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; no new lesions; and reduced residual uptake in bone marrow compared with baseline. 90% CI for percentage of responders was calculated using Clopper-Pearson method.

Outcome measures

Outcome measures
Measure	Cohort G (Expansion, FL): Obinutuzumab + Polatuzumab n=34 Participants Participants with r/r FL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Cohort H (Expansion, DLBCL): Obinutuzumab + Polatuzumab n=27 Participants Participants with r/r DLBCL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Cohort E (DLBCL): Obinutuzumab + Polatuzumab n=4 Participants Participants with r/r DLBCL received obinutuzumab via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Arm A (FL): RTX+Pinatuzumab,Then RTX+Polatuzumab n=2 Participants Participants with r/r FL received RTX at a dose of 375 mg/m\^2 administered via IV infusion on Day 1 and pinatuzumab vedotin at a dose of 2.4 mg/kg administered via IV infusion on Day 2 for the first 2 cycles. RTX and pinatuzumab were administered on the same day (Day 1) in subsequent cycles beginning with the third cycle, in the absence of any infusion-related adverse events. Participants who developed PD were treated with RTX at 375 mg/m\^2 and polatuzumab vedotin at 2.4 mg/kg via IV infusion on Day 1, beginning no later than 42 days after the last dose of the prior study treatment until a second PD event, clinical deterioration, and/or intolerance to the crossover treatment for up to a maximum of 1 year (maximum 17 cycles on an every-21-day schedule).	Cohort C (FL): RTX + Polatuzumab Participants with r/r FL received RTX at a dose of 375 mg/m\^2 administered via IV infusion on Day 1 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first 2 cycles. In the absence of any infusion-related adverse events, RTX and polatuzumab were administered on the same day (Day 1) in subsequent cycles beginning with the third cycle for up to a maximum of 1 year (17 cycles on an every-21-day schedule) or significant toxicity, disease progression, or withdrawal from study.	Cohort H (Expansion, DLBCL): Obinutuzumab + Polatuzumab Participants with r/r DLBCL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.
Percentage of Participants With OR at EOT Based on PET/CT Assessment as Determined by IRC Per Lugano 2014 Response Criteria: Obinutuzumab-Containing Cohorts (Cohorts E, G, and H)	64.7 percentage of participants Interval 49.18 to 78.21	18.5 percentage of participants Interval 7.59 to 35.06	25.0 percentage of participants Interval 1.27 to 75.14	100.0 percentage of participants Interval 22.36 to 100.0	—	—

SECONDARY outcome

Timeframe: 6-8 weeks after Cycle 8 Day 1 (cycle length = 21 Days) or last study treatment (maximum up to 27-29 weeks)

Tumor response assessment was performed by investigator according to modified Lugano classification using PET/CT scan. OR was defined as a response of CR or PR. CR was defined as a score of 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; no new lesions; no evidence of FDG-avid disease in bone marrow; and normal/IHC-negative bone marrow morphology. PR was defined as 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; no new lesions; and reduced residual uptake in bone marrow compared with baseline. 90% CI for percentage of responders was calculated using Clopper-Pearson method.

Outcome measures

Outcome measures
Measure	Cohort G (Expansion, FL): Obinutuzumab + Polatuzumab n=36 Participants Participants with r/r FL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Cohort H (Expansion, DLBCL): Obinutuzumab + Polatuzumab n=33 Participants Participants with r/r DLBCL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Cohort E (DLBCL): Obinutuzumab + Polatuzumab n=4 Participants Participants with r/r DLBCL received obinutuzumab via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Arm A (FL): RTX+Pinatuzumab,Then RTX+Polatuzumab n=3 Participants Participants with r/r FL received RTX at a dose of 375 mg/m\^2 administered via IV infusion on Day 1 and pinatuzumab vedotin at a dose of 2.4 mg/kg administered via IV infusion on Day 2 for the first 2 cycles. RTX and pinatuzumab were administered on the same day (Day 1) in subsequent cycles beginning with the third cycle, in the absence of any infusion-related adverse events. Participants who developed PD were treated with RTX at 375 mg/m\^2 and polatuzumab vedotin at 2.4 mg/kg via IV infusion on Day 1, beginning no later than 42 days after the last dose of the prior study treatment until a second PD event, clinical deterioration, and/or intolerance to the crossover treatment for up to a maximum of 1 year (maximum 17 cycles on an every-21-day schedule).	Cohort C (FL): RTX + Polatuzumab Participants with r/r FL received RTX at a dose of 375 mg/m\^2 administered via IV infusion on Day 1 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first 2 cycles. In the absence of any infusion-related adverse events, RTX and polatuzumab were administered on the same day (Day 1) in subsequent cycles beginning with the third cycle for up to a maximum of 1 year (17 cycles on an every-21-day schedule) or significant toxicity, disease progression, or withdrawal from study.	Cohort H (Expansion, DLBCL): Obinutuzumab + Polatuzumab Participants with r/r DLBCL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.
Percentage of Participants With OR at EOT Based on PET/CT Assessment as Determined by the Investigator Per Lugano 2014 Response Criteria: Obinutuzumab-Containing Cohorts (Cohorts E, G, and H)	63.9 percentage of participants Interval 48.83 to 77.15	21.2 percentage of participants Interval 10.4 to 36.18	25.0 percentage of participants Interval 1.27 to 75.14	66.7 percentage of participants Interval 13.54 to 98.3	—	—

SECONDARY outcome

Timeframe: 6-8 weeks after Cycle 8 Day 1 (cycle length = 21 Days) or last study treatment (maximum up to 27-29 weeks)

Population: Obinutuzumab-Containing Cohorts (Cohorts E + H and E + G): Analysis was performed on efficacy-evaluable population. Here, 'Overall Number of Participants Analyzed' signifies the number of participants evaluable for this outcome measure.

Tumor response assessment was performed by an IRC according to modified Lugano classification using CT scan. CR was defined as reduction of longest transverse diameter (LDi) of target nodes/nodal masses to less than or equal to (\</=) 1.5 cm, 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. 90% CI for percentage of responders was calculated using Clopper-Pearson method.

Outcome measures

Outcome measures
Measure	Cohort G (Expansion, FL): Obinutuzumab + Polatuzumab Participants with r/r FL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Cohort H (Expansion, DLBCL): Obinutuzumab + Polatuzumab Participants with r/r DLBCL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Cohort E (DLBCL): Obinutuzumab + Polatuzumab n=31 Participants Participants with r/r DLBCL received obinutuzumab via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Arm A (FL): RTX+Pinatuzumab,Then RTX+Polatuzumab n=36 Participants Participants with r/r FL received RTX at a dose of 375 mg/m\^2 administered via IV infusion on Day 1 and pinatuzumab vedotin at a dose of 2.4 mg/kg administered via IV infusion on Day 2 for the first 2 cycles. RTX and pinatuzumab were administered on the same day (Day 1) in subsequent cycles beginning with the third cycle, in the absence of any infusion-related adverse events. Participants who developed PD were treated with RTX at 375 mg/m\^2 and polatuzumab vedotin at 2.4 mg/kg via IV infusion on Day 1, beginning no later than 42 days after the last dose of the prior study treatment until a second PD event, clinical deterioration, and/or intolerance to the crossover treatment for up to a maximum of 1 year (maximum 17 cycles on an every-21-day schedule).	Cohort C (FL): RTX + Polatuzumab Participants with r/r FL received RTX at a dose of 375 mg/m\^2 administered via IV infusion on Day 1 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first 2 cycles. In the absence of any infusion-related adverse events, RTX and polatuzumab were administered on the same day (Day 1) in subsequent cycles beginning with the third cycle for up to a maximum of 1 year (17 cycles on an every-21-day schedule) or significant toxicity, disease progression, or withdrawal from study.	Cohort H (Expansion, DLBCL): Obinutuzumab + Polatuzumab Participants with r/r DLBCL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.
Percentage of Participants With CR at EOT Based on CT Assessment Alone as Determined by IRC Per Lugano 2014 Response Criteria: Obinutuzumab-Containing Cohorts (Cohorts E + H and E + G)	—	—	6.5 percentage of participants Interval 1.2 to 19.0	13.9 percentage of participants Interval 5.6 to 27.0	—	—

SECONDARY outcome

Timeframe: 6-8 weeks after Cycle 8 Day 1 (cycle length = 21 Days) or last study treatment (maximum up to 27-29 weeks)

Tumor response assessment was performed by investigator according to modified Lugano classification using CT scan. CR was defined as reduction of LDi of target nodes/nodal masses to \</=1.5 cm, 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. 90% CI for percentage of responders was calculated using Clopper-Pearson method.

Outcome measures

Outcome measures
Measure	Cohort G (Expansion, FL): Obinutuzumab + Polatuzumab Participants with r/r FL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Cohort H (Expansion, DLBCL): Obinutuzumab + Polatuzumab Participants with r/r DLBCL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Cohort E (DLBCL): Obinutuzumab + Polatuzumab n=37 Participants Participants with r/r DLBCL received obinutuzumab via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Arm A (FL): RTX+Pinatuzumab,Then RTX+Polatuzumab n=39 Participants Participants with r/r FL received RTX at a dose of 375 mg/m\^2 administered via IV infusion on Day 1 and pinatuzumab vedotin at a dose of 2.4 mg/kg administered via IV infusion on Day 2 for the first 2 cycles. RTX and pinatuzumab were administered on the same day (Day 1) in subsequent cycles beginning with the third cycle, in the absence of any infusion-related adverse events. Participants who developed PD were treated with RTX at 375 mg/m\^2 and polatuzumab vedotin at 2.4 mg/kg via IV infusion on Day 1, beginning no later than 42 days after the last dose of the prior study treatment until a second PD event, clinical deterioration, and/or intolerance to the crossover treatment for up to a maximum of 1 year (maximum 17 cycles on an every-21-day schedule).	Cohort C (FL): RTX + Polatuzumab Participants with r/r FL received RTX at a dose of 375 mg/m\^2 administered via IV infusion on Day 1 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first 2 cycles. In the absence of any infusion-related adverse events, RTX and polatuzumab were administered on the same day (Day 1) in subsequent cycles beginning with the third cycle for up to a maximum of 1 year (17 cycles on an every-21-day schedule) or significant toxicity, disease progression, or withdrawal from study.	Cohort H (Expansion, DLBCL): Obinutuzumab + Polatuzumab Participants with r/r DLBCL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.
Percentage of Participants With CR at EOT Based on CT Assessment Alone as Determined by Investigator Per Lugano 2014 Response Criteria: Obinutuzumab-Containing Cohorts (Cohorts E + H and E + G)	—	—	10.8 percentage of participants Interval 3.8 to 23.1	20.5 percentage of participants Interval 10.6 to 34.0	—	—

SECONDARY outcome

Timeframe: 6-8 weeks after Cycle 8 Day 1 (cycle length = 21 Days) or last study treatment (maximum up to 27-29 weeks)

Tumor response assessment was performed by an IRC according to modified Lugano classification using CT scan. OR was defined as a response of CR or PR. CR was defined as reduction of LDi of target nodes/nodal masses to \</=1.5 cm, 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 was defined as \>/=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 by at least \>50% beyond normal; and no new lesions. 90% CI for percentage of responders was calculated using Clopper-Pearson method.

Outcome measures

Outcome measures
Measure	Cohort G (Expansion, FL): Obinutuzumab + Polatuzumab Participants with r/r FL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Cohort H (Expansion, DLBCL): Obinutuzumab + Polatuzumab Participants with r/r DLBCL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Cohort E (DLBCL): Obinutuzumab + Polatuzumab n=31 Participants Participants with r/r DLBCL received obinutuzumab via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Arm A (FL): RTX+Pinatuzumab,Then RTX+Polatuzumab n=36 Participants Participants with r/r FL received RTX at a dose of 375 mg/m\^2 administered via IV infusion on Day 1 and pinatuzumab vedotin at a dose of 2.4 mg/kg administered via IV infusion on Day 2 for the first 2 cycles. RTX and pinatuzumab were administered on the same day (Day 1) in subsequent cycles beginning with the third cycle, in the absence of any infusion-related adverse events. Participants who developed PD were treated with RTX at 375 mg/m\^2 and polatuzumab vedotin at 2.4 mg/kg via IV infusion on Day 1, beginning no later than 42 days after the last dose of the prior study treatment until a second PD event, clinical deterioration, and/or intolerance to the crossover treatment for up to a maximum of 1 year (maximum 17 cycles on an every-21-day schedule).	Cohort C (FL): RTX + Polatuzumab Participants with r/r FL received RTX at a dose of 375 mg/m\^2 administered via IV infusion on Day 1 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first 2 cycles. In the absence of any infusion-related adverse events, RTX and polatuzumab were administered on the same day (Day 1) in subsequent cycles beginning with the third cycle for up to a maximum of 1 year (17 cycles on an every-21-day schedule) or significant toxicity, disease progression, or withdrawal from study.	Cohort H (Expansion, DLBCL): Obinutuzumab + Polatuzumab Participants with r/r DLBCL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.
Percentage of Participants With OR at EOT Based on CT Assessment Alone as Determined by IRC Per Lugano 2014 Response Criteria: Obinutuzumab-Containing Cohorts (Cohorts E + H and E + G)	—	—	25.8 percentage of participants Interval 13.5 to 41.8	66.7 percentage of participants Interval 51.7 to 79.5	—	—

SECONDARY outcome

Timeframe: 6-8 weeks after Cycle 8 Day 1 (cycle length = 21 Days) or last study treatment (maximum up to 27-29 weeks)

Tumor response assessment was performed by investigator according to modified Lugano classification using CT scan. OR was defined as a response of CR or PR. CR was defined as reduction of LDi of target nodes/nodal masses to \</=1.5 cm, 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 was defined as \>/=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 by at least \>50% beyond normal; and no new lesions. 90% CI for percentage of responders was calculated using Clopper-Pearson method.

Outcome measures

Outcome measures
Measure	Cohort G (Expansion, FL): Obinutuzumab + Polatuzumab Participants with r/r FL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Cohort H (Expansion, DLBCL): Obinutuzumab + Polatuzumab Participants with r/r DLBCL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Cohort E (DLBCL): Obinutuzumab + Polatuzumab n=37 Participants Participants with r/r DLBCL received obinutuzumab via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Arm A (FL): RTX+Pinatuzumab,Then RTX+Polatuzumab n=39 Participants Participants with r/r FL received RTX at a dose of 375 mg/m\^2 administered via IV infusion on Day 1 and pinatuzumab vedotin at a dose of 2.4 mg/kg administered via IV infusion on Day 2 for the first 2 cycles. RTX and pinatuzumab were administered on the same day (Day 1) in subsequent cycles beginning with the third cycle, in the absence of any infusion-related adverse events. Participants who developed PD were treated with RTX at 375 mg/m\^2 and polatuzumab vedotin at 2.4 mg/kg via IV infusion on Day 1, beginning no later than 42 days after the last dose of the prior study treatment until a second PD event, clinical deterioration, and/or intolerance to the crossover treatment for up to a maximum of 1 year (maximum 17 cycles on an every-21-day schedule).	Cohort C (FL): RTX + Polatuzumab Participants with r/r FL received RTX at a dose of 375 mg/m\^2 administered via IV infusion on Day 1 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first 2 cycles. In the absence of any infusion-related adverse events, RTX and polatuzumab were administered on the same day (Day 1) in subsequent cycles beginning with the third cycle for up to a maximum of 1 year (17 cycles on an every-21-day schedule) or significant toxicity, disease progression, or withdrawal from study.	Cohort H (Expansion, DLBCL): Obinutuzumab + Polatuzumab Participants with r/r DLBCL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.
Percentage of Participants With OR at EOT Based on CT Assessment Alone as Determined by Investigator Per Lugano 2014 Response Criteria: Obinutuzumab-Containing Cohorts (Cohorts E + H and E + G)	—	—	21.6 percentage of participants Interval 11.2 to 35.6	64.1 percentage of participants Interval 49.7 to 76.8	—	—

SECONDARY outcome

Timeframe: Baseline up to disease progression or death, whichever occurred first (up to approximately 5.5 years)

Tumor response assessment was performed by investigator according to modified Lugano classification using PET/CT or CT scan. Best OR was defined as a response of CR or PR. CR was defined as a score of 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; no new lesions; no evidence of FDG-avid disease in bone marrow; and normal/IHC-negative bone marrow morphology. PR was defined as 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; no new lesions; and reduced residual uptake in bone marrow compared with baseline. 90% CI for percentage of responders was calculated using Clopper-Pearson method.

Outcome measures

Outcome measures
Measure	Cohort G (Expansion, FL): Obinutuzumab + Polatuzumab n=39 Participants Participants with r/r FL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Cohort H (Expansion, DLBCL): Obinutuzumab + Polatuzumab n=39 Participants Participants with r/r DLBCL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Cohort E (DLBCL): Obinutuzumab + Polatuzumab n=5 Participants Participants with r/r DLBCL received obinutuzumab via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Arm A (FL): RTX+Pinatuzumab,Then RTX+Polatuzumab n=4 Participants Participants with r/r FL received RTX at a dose of 375 mg/m\^2 administered via IV infusion on Day 1 and pinatuzumab vedotin at a dose of 2.4 mg/kg administered via IV infusion on Day 2 for the first 2 cycles. RTX and pinatuzumab were administered on the same day (Day 1) in subsequent cycles beginning with the third cycle, in the absence of any infusion-related adverse events. Participants who developed PD were treated with RTX at 375 mg/m\^2 and polatuzumab vedotin at 2.4 mg/kg via IV infusion on Day 1, beginning no later than 42 days after the last dose of the prior study treatment until a second PD event, clinical deterioration, and/or intolerance to the crossover treatment for up to a maximum of 1 year (maximum 17 cycles on an every-21-day schedule).	Cohort C (FL): RTX + Polatuzumab Participants with r/r FL received RTX at a dose of 375 mg/m\^2 administered via IV infusion on Day 1 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first 2 cycles. In the absence of any infusion-related adverse events, RTX and polatuzumab were administered on the same day (Day 1) in subsequent cycles beginning with the third cycle for up to a maximum of 1 year (17 cycles on an every-21-day schedule) or significant toxicity, disease progression, or withdrawal from study.	Cohort H (Expansion, DLBCL): Obinutuzumab + Polatuzumab Participants with r/r DLBCL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.
Percentage of Participants With Best OR Based on PET/CT or CT Assessment as Determined by Investigator Per Lugano 2014 Response Criteria: Obinutuzumab-Containing Cohorts (Cohorts E, G, and H)	74.4 percentage of participants Interval 60.4 to 85.38	43.6 percentage of participants Interval 30.0 to 57.94	20.0 percentage of participants Interval 1.02 to 65.74	50.0 percentage of participants Interval 9.76 to 90.24	—	—

SECONDARY outcome

Timeframe: Pre-infusion (Hour 0) & 30 minutes post-infusion (infusion length= 2-6 hours) on Day 1 of Cycle 1; Day 8, Day 15 of Cycle 1 (Cycle length= 21 days)

Population: Rituximab Containing Regimens (Arms A and B, Cohort C): Analysis was performed on all participants with measurable pharmacokinetic (PK) concentrations. Here, 'Overall Number of Participants Analyzed' signifies the number of participants evaluable for this outcome measure.

AUCinf for rituximab was estimated from serum concentration data using non-compartmental analysis.

Outcome measures

Outcome measures
Measure	Cohort G (Expansion, FL): Obinutuzumab + Polatuzumab n=26 Participants Participants with r/r FL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Cohort H (Expansion, DLBCL): Obinutuzumab + Polatuzumab n=11 Participants Participants with r/r DLBCL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Cohort E (DLBCL): Obinutuzumab + Polatuzumab n=25 Participants Participants with r/r DLBCL received obinutuzumab via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Arm A (FL): RTX+Pinatuzumab,Then RTX+Polatuzumab n=15 Participants Participants with r/r FL received RTX at a dose of 375 mg/m\^2 administered via IV infusion on Day 1 and pinatuzumab vedotin at a dose of 2.4 mg/kg administered via IV infusion on Day 2 for the first 2 cycles. RTX and pinatuzumab were administered on the same day (Day 1) in subsequent cycles beginning with the third cycle, in the absence of any infusion-related adverse events. Participants who developed PD were treated with RTX at 375 mg/m\^2 and polatuzumab vedotin at 2.4 mg/kg via IV infusion on Day 1, beginning no later than 42 days after the last dose of the prior study treatment until a second PD event, clinical deterioration, and/or intolerance to the crossover treatment for up to a maximum of 1 year (maximum 17 cycles on an every-21-day schedule).	Cohort C (FL): RTX + Polatuzumab n=15 Participants Participants with r/r FL received RTX at a dose of 375 mg/m\^2 administered via IV infusion on Day 1 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first 2 cycles. In the absence of any infusion-related adverse events, RTX and polatuzumab were administered on the same day (Day 1) in subsequent cycles beginning with the third cycle for up to a maximum of 1 year (17 cycles on an every-21-day schedule) or significant toxicity, disease progression, or withdrawal from study.	Cohort H (Expansion, DLBCL): Obinutuzumab + Polatuzumab Participants with r/r DLBCL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.
Area Under the Concentration-Time Curve From Time Zero to Infinity (AUCinf) of Rituximab: Rituximab Containing Regimens (Arms A and B, Cohort C)	4200 day*micrograms (mcg)/milliliter (mL) Standard Deviation 2620	3910 day*micrograms (mcg)/milliliter (mL) Standard Deviation 2480	5640 day*micrograms (mcg)/milliliter (mL) Standard Deviation 8320	3350 day*micrograms (mcg)/milliliter (mL) Standard Deviation 1180	2660 day*micrograms (mcg)/milliliter (mL) Standard Deviation 879	—

SECONDARY outcome

Timeframe: Pre-infusion (Hour 0) & 30 minutes post-infusion (infusion length= 2-6 hours) on Day 1 of Cycle 1; Day 8, Day 15 of Cycle 1 (Cycle length= 21 days)

Population: Rituximab Containing Regimens (Arms A and B, Cohort C): Analysis was performed on all participants with measurable PK concentrations. Here, 'Overall Number of Participants Analyzed' signifies the number of participants evaluable for this outcome measure.

Cmax for rituximab was estimated from serum concentration data using non-compartmental analysis.

Outcome measures

Outcome measures
Measure	Cohort G (Expansion, FL): Obinutuzumab + Polatuzumab n=35 Participants Participants with r/r FL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Cohort H (Expansion, DLBCL): Obinutuzumab + Polatuzumab n=16 Participants Participants with r/r DLBCL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Cohort E (DLBCL): Obinutuzumab + Polatuzumab n=36 Participants Participants with r/r DLBCL received obinutuzumab via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Arm A (FL): RTX+Pinatuzumab,Then RTX+Polatuzumab n=18 Participants Participants with r/r FL received RTX at a dose of 375 mg/m\^2 administered via IV infusion on Day 1 and pinatuzumab vedotin at a dose of 2.4 mg/kg administered via IV infusion on Day 2 for the first 2 cycles. RTX and pinatuzumab were administered on the same day (Day 1) in subsequent cycles beginning with the third cycle, in the absence of any infusion-related adverse events. Participants who developed PD were treated with RTX at 375 mg/m\^2 and polatuzumab vedotin at 2.4 mg/kg via IV infusion on Day 1, beginning no later than 42 days after the last dose of the prior study treatment until a second PD event, clinical deterioration, and/or intolerance to the crossover treatment for up to a maximum of 1 year (maximum 17 cycles on an every-21-day schedule).	Cohort C (FL): RTX + Polatuzumab n=18 Participants Participants with r/r FL received RTX at a dose of 375 mg/m\^2 administered via IV infusion on Day 1 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first 2 cycles. In the absence of any infusion-related adverse events, RTX and polatuzumab were administered on the same day (Day 1) in subsequent cycles beginning with the third cycle for up to a maximum of 1 year (17 cycles on an every-21-day schedule) or significant toxicity, disease progression, or withdrawal from study.	Cohort H (Expansion, DLBCL): Obinutuzumab + Polatuzumab Participants with r/r DLBCL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.
Maximum Observed Concentration (Cmax) of Rituximab: Rituximab Containing Regimens (Arms A and B, Cohort C)	232 mcg/mL Standard Deviation 72.7	228 mcg/mL Standard Deviation 83.3	217 mcg/mL Standard Deviation 61.5	225 mcg/mL Standard Deviation 40.9	227 mcg/mL Standard Deviation 32.4	—

SECONDARY outcome

Timeframe: Pre-infusion (Hour 0) & 30 minutes post-infusion (infusion length= 2-6 hours) on Day 1 of Cycle 1; Day 8, Day 15 of Cycle 1 (Cycle length= 21 days)

CL for rituximab was estimated from serum concentration data using non-compartmental analysis.

Outcome measures

Outcome measures
Measure	Cohort G (Expansion, FL): Obinutuzumab + Polatuzumab n=26 Participants Participants with r/r FL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Cohort H (Expansion, DLBCL): Obinutuzumab + Polatuzumab n=11 Participants Participants with r/r DLBCL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Cohort E (DLBCL): Obinutuzumab + Polatuzumab n=25 Participants Participants with r/r DLBCL received obinutuzumab via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Arm A (FL): RTX+Pinatuzumab,Then RTX+Polatuzumab n=15 Participants Participants with r/r FL received RTX at a dose of 375 mg/m\^2 administered via IV infusion on Day 1 and pinatuzumab vedotin at a dose of 2.4 mg/kg administered via IV infusion on Day 2 for the first 2 cycles. RTX and pinatuzumab were administered on the same day (Day 1) in subsequent cycles beginning with the third cycle, in the absence of any infusion-related adverse events. Participants who developed PD were treated with RTX at 375 mg/m\^2 and polatuzumab vedotin at 2.4 mg/kg via IV infusion on Day 1, beginning no later than 42 days after the last dose of the prior study treatment until a second PD event, clinical deterioration, and/or intolerance to the crossover treatment for up to a maximum of 1 year (maximum 17 cycles on an every-21-day schedule).	Cohort C (FL): RTX + Polatuzumab n=15 Participants Participants with r/r FL received RTX at a dose of 375 mg/m\^2 administered via IV infusion on Day 1 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first 2 cycles. In the absence of any infusion-related adverse events, RTX and polatuzumab were administered on the same day (Day 1) in subsequent cycles beginning with the third cycle for up to a maximum of 1 year (17 cycles on an every-21-day schedule) or significant toxicity, disease progression, or withdrawal from study.	Cohort H (Expansion, DLBCL): Obinutuzumab + Polatuzumab Participants with r/r DLBCL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.
Systemic Clearance (CL) of Rituximab: Rituximab Containing Regimens (Arms A and B, Cohort C)	116.26 mL/day/meter-square (m^2) Standard Deviation 59.99	134.31 mL/day/meter-square (m^2) Standard Deviation 97.45	113.97 mL/day/meter-square (m^2) Standard Deviation 61.41	124.53 mL/day/meter-square (m^2) Standard Deviation 41.12	158.57 mL/day/meter-square (m^2) Standard Deviation 60.47	—

SECONDARY outcome

Timeframe: Day 1 up to 1.5 years (detailed timeframe is provided in the Outcome Measure Description)

t1/2 for rituximab was estimated from serum concentration data using non-compartmental analysis. Time Frame: Pre-infusion (Hour 0) \& 30 minutes post-infusion (infusion length= 2-6 hours) on Day 1 of Cycle 1-4 and every 4th Cycle thereafter (approximately up to 1.5 years); Day 8, Day 15 of Cycle 1 and 3; 30 Days after last infusion; 2, 4, \& 6 months after treatment completion visit (approximately up to 1.5 years, Cycle length= 21 days).

Outcome measures

Outcome measures
Measure	Cohort G (Expansion, FL): Obinutuzumab + Polatuzumab n=26 Participants Participants with r/r FL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Cohort H (Expansion, DLBCL): Obinutuzumab + Polatuzumab n=11 Participants Participants with r/r DLBCL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Cohort E (DLBCL): Obinutuzumab + Polatuzumab n=25 Participants Participants with r/r DLBCL received obinutuzumab via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.	Arm A (FL): RTX+Pinatuzumab,Then RTX+Polatuzumab n=15 Participants Participants with r/r FL received RTX at a dose of 375 mg/m\^2 administered via IV infusion on Day 1 and pinatuzumab vedotin at a dose of 2.4 mg/kg administered via IV infusion on Day 2 for the first 2 cycles. RTX and pinatuzumab were administered on the same day (Day 1) in subsequent cycles beginning with the third cycle, in the absence of any infusion-related adverse events. Participants who developed PD were treated with RTX at 375 mg/m\^2 and polatuzumab vedotin at 2.4 mg/kg via IV infusion on Day 1, beginning no later than 42 days after the last dose of the prior study treatment until a second PD event, clinical deterioration, and/or intolerance to the crossover treatment for up to a maximum of 1 year (maximum 17 cycles on an every-21-day schedule).	Cohort C (FL): RTX + Polatuzumab n=15 Participants Participants with r/r FL received RTX at a dose of 375 mg/m\^2 administered via IV infusion on Day 1 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first 2 cycles. In the absence of any infusion-related adverse events, RTX and polatuzumab were administered on the same day (Day 1) in subsequent cycles beginning with the third cycle for up to a maximum of 1 year (17 cycles on an every-21-day schedule) or significant toxicity, disease progression, or withdrawal from study.	Cohort H (Expansion, DLBCL): Obinutuzumab + Polatuzumab Participants with r/r DLBCL received obinutuzumab at a dose of 1000 mg via IV infusion on Days 1, 8, 15 and polatuzumab vedotin at a dose of 1.8 mg/kg administered via IV infusion on Day 2 for the first cycle. In the absence of any infusion-related adverse events, obinutuzumab and polatuzumab vedotin were administered on the same day (Day 1) in subsequent cycles beginning with the second cycle for up to a maximum of 8 cycles or significant toxicity, disease progression, or withdrawal from study.
Half-Life (t1/2) of Rituximab: Rituximab Containing Regimens (Arms A and B, Cohort C)	25.6 days Standard Deviation 18.0	19.8 days Standard Deviation 7.34	35.3 days Standard Deviation 56.3	18.7 days Standard Deviation 6.23	14.4 days Standard Deviation 3.62	—

SECONDARY outcome

Timeframe: Day 1 up to 1.5 years (detailed timeframe is provided in the Outcome Measure Description)

Vss for rituximab was estimated from serum concentration data using non-compartmental analysis. Time Frame: Pre-infusion (Hour 0) \& 30 minutes post-infusion (infusion length= 2-6 hours) on Day 1 of Cycle 1-4 and every 4th Cycle thereafter (approximately up to 1.5 years); Day 8, Day 15 of Cycle 1 and 3; 30 Days after last infusion; 2, 4, \& 6 months after treatment completion visit (approximately up to 1.5 years, Cycle length= 21 days)