A Study of Obinutuzumab in Combination With CHOP Chemotherapy Versus Rituximab With CHOP in Participants With CD20-Positive Diffuse Large B-Cell Lymphoma (GOYA)

Median Time to Progression-Free Survival (PFS), Independent Review Committee (IRC)-Assessed

Kaplan Meier estimate of median PFS was defined as time at which half of participants have progressed (progressive disease \[PD\]). Progression-free survival was defined as time from randomization until first documented day of disease progression or relapse, using a modified version of Revised Response Criteria for Malignant Lymphoma, or death from any cause, whichever occurred first, on basis of IRC assessments. Progression was defined as at least 50% increase in nodal lesions or \>/=50% increase in any node \> 1 cm or \>/= 50% increase in other target measurable lesions (e.g., splenic or hepatic nodules) and/or appearance of any new bone marrow involvement and/or appearance of any new lesion \> 1.5 cm or \>/= 50% increase in any previously involved node with diameter \</= 1 cm such that it is now \>1.5 cm. Tumor measurements were obtained by CT or MRI. This outcome measure used data from primary analysis which included all 1418 participants.

Time frame: Baseline up to approximately 4 years and 9 months (up to 29 April 2016)

Median Time to Overall Survival (OS)

Kaplan Meier estimate of median OS was defined as the time at which half of the participants had died, regardless of the cause of death. Overall survival in the overall study population was defined as the time from the date of randomization to the date of death from any cause.

Time frame: Baseline up to approximately 6.5 years (up to 31 January 2018)

Overall Response Rate (ORR), Investigator-Assessed

Overall response was determined on the basis of investigator assessments according to the International Working Group (IWG) Revised Response Criteria for Malignant Lymphoma, 2007. Tumor assessments were performed with CT/MRI with or without PET. Overall response was defined as the disappearance of all evidence of disease, regression of measurable disease, and no new sites.

Time frame: Baseline up to approximately 6.5 years (up to 31 January 2018)

Overall Response Rate (ORR), IRC-Assessed

Overall response was determined on the basis of IRC assessments according to the International Working Group (IWG) Revised Response Criteria for Malignant Lymphoma, 2007. Tumor assessments were performed with CT/MRI with or without PET. Overall response was defined as the disappearance of all evidence of disease, regression of measurable disease, and no new sites. This outcome measure used data from primary analysis which included all 1418 participants.

Time frame: Baseline up to approximately 4 years and 9 months (up to 29 April 2016)

Complete Response (CR) at the End of Treatment, Investigator-Assessed

Percentage of participants with complete response was determined on the basis of investigator assessments according to the International Working Group (IWG) Revised Response Criteria for Malignant Lymphoma, 2007. Tumor assessments were performed with CT/MRI with or without PET. Complete response was defined as the disappearance of all evidence of disease.

Time frame: Baseline up to approximately 6.5 years (up to 31 January 2018)

Complete Response (CR) at the End of Treatment, IRC-Assessed

Percentage of participants with complete response was determined on the basis of IRC assessments according to the International Working Group (IWG) Revised Response Criteria for Malignant Lymphoma, 2007. Tumor assessments were performed with CT/MRI with or without PET. Complete response was defined as the disappearance of all evidence of disease. This outcome measure used data from primary analysis which included all 1418 participants.

Time frame: Baseline up to approximately 4 years and 9 months (up to 29 April 2016)

Median Time to Event-Free Survival (EFS), Investigator-Assessed

Kaplan Meier estimate of median EFS is the time at which half of the participants have progressed. Event-free survival was defined as the time from the date of randomization until the date of disease progression, relapse, initiation of a new non-protocol-specified anti-lymphoma treatment, or death from any cause on the basis of investigator assessments with the use of Revised Response Criteria for Malignant Lymphoma. Disease progression/relapse was defined as at least 50% increase in nodal lesions or \>/=50% increase in any node \> 1 centimeter (cm) or \>/= 50% increase in other target measurable lesions (e.g., splenic or hepatic nodules) and/or appearance of any new bone marrow involvement and/or appearance of any new lesion \> 1.5 cm or \>/= 50% increase in any previously involved node with a diameter \</= 1 cm such that it is now \>1.5 cm. Tumor measurements were obtained by CT/MRI.

Time frame: Baseline up to death or disease progression, or initiation of new anti-lymphoma treatment (NALT), whichever occurred first, approximately 6.5 years (up to 31 January 2018)

Median Time to Disease-Free Survival (DFS), Investigator-Assessed

Kaplan Meier estimate of median DFS was defined as time at which half of participants have disease progression/relapse or death from any cause. Disease-free survival was defined as time from date of the first occurrence of a documented CR to date of disease progression/relapse or death from any cause on basis of investigator assessments with use of Revised Response Criteria for Malignant Lymphoma. Tumor assessments were performed with CT/MRI. CR was defined as disappearance of all target lesions. Progression/relapse was defined as at least 50% increase in nodal lesions or \>/=50% increase in any node \> 1 centimeter (cm) or \>/= 50% increase in other target measurable lesions (e.g., splenic or hepatic nodules) and/or appearance of any new bone marrow involvement and/or appearance of any new lesion \> 1.5 cm or \>/= 50% increase in any previously involved node with a diameter \</= 1 cm such that it is now \>1.5 cm.

Time frame: Baseline up to death or disease progression, whichever occurred first, approximately 6.5 years (up to 31 January 2018)

Duration of Response (DOR), Investigator-Assessed

DOR: time from first occurrence of documented CR or PR to disease progression/relapse, or death from any cause for participants with a response of CR or PR. Tumor assessments were performed with CT/MRI. CR: disappearance of all target lesions. PR: \>/=50% decrease target lesions in up to six dominant lesions identified at baseline, no new lesions and no increase in the size of the liver, spleen, or other nodes. Splenic and hepatic nodule regression \>/= 50%. Progression/relapse: at least 50% increase in nodal lesions or \>/=50% increase in any node \> 1 cm or \>/= 50% increase in other target lesions (e.g., splenic or hepatic nodules) and/or any new bone marrow involvement and/or any new lesion \> 1.5 cm or \>/= 50% increase in any previously involved node with a diameter \</= 1 cm such that it is now \>1.5 cm. A participant in the Rituximab+CHOP arm with the longest follow-up, 53 months, had an event. The criterion for median was the minimum time when survival went below 50%.

Time frame: Baseline up to death or disease progression, whichever occurred first, approximately 6.5 years (up to 31 January 2018)

Time to Next Anti-Lymphoma Treatment (TTNALT)

Time to next anti-lymphoma treatment was defined as the time from the date of randomization to the start date of the next anti-lymphoma treatment or death from any cause.

Time frame: Baseline up to start of next anti-lymphoma treatment or death due to any cause, whichever occurred first, approximately 6.5 years (31 January 2018)

Percentage of Participants With Adverse Events (AEs)

An adverse event is any untoward medical occurrence in a participant administered a pharmaceutical product and which does not necessarily have to have a causal relationship with the treatment. An adverse event can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding, for example), symptom, or disease temporally associated with the use of a pharmaceutical product, whether or not considered related to the pharmaceutical product. Preexisting conditions which worsen during a study are also considered as adverse events.

Time frame: Baseline up to approximately 6.5 years (up to 31 January 2018)

Percentage of Participants With Human Anti-Human Antibodies (HAHAs) to Obinutuzumab

The presence of HAHAs to obinutuzumab was assessed in the first 100 randomized participants.

Time frame: Pre-dose (Hour 0) on Cycle (C) 4 Day (D) 1, at end of treatment/early termination (up to Month 6), every 6 months thereafter for 30 months (cycle length = 21 days)

Change From Baseline in Functional Assessment of Cancer Therapy-Lymphoma (FACT-Lym) Subscale Score

The FACT-Lym subscale was developed to assess health-related quality of life in participants with non-Hodgkin lymphoma. The score range is 0-60, with higher scores indicating better outcomes. A positive change from baseline indicates an improvement.

Time frame: Baseline (pre-dose [Hour 0] on C1D1), C3D1, end of treatment (up to Month 6), every 12 months thereafter up to approximately 6.5 years, (cycle length = 21 days)

Change From Baseline in European Organization for Research and Treatment of Cancer Quality of Life Core 30 (EORTC QLQ-C30) Domain Scores

The EORTC QLQ-C30 is a health-related quality of life questionnaire. A higher score indicates better quality of life, with changes of 5 to 10 points considered to be a minimally important difference to participants.

Time frame: Baseline (pre-dose [Hour 0] on C1D1), C3D1, end of treatment (up to Month 6), every 12 months thereafter up to data cut-off, up to approximately 6.5 years, (cycle length = 21 days)

Serum Concentrations of Obinutuzumab in Japanese Participants With Diffuse Large B-Cell Lymphoma (DLBCL)

Serum samples for assessment of obinutuzumab serum concentrations were collected only from a subset of Japanese participants following administration of 1000 mg obinutuzumab.

Time frame: C1: D1 post-infusion and 20-28 and 66-80 hours after end of infusion, D8 and D15 pre-and post-infusion; C2: D1 pre- and post-infusion; C4: D1 pre- and post-infusion; C6: D1 pre- and post-infusion; C8: D1 pre- and post-infusion (cycle length = 21 days)