A Phase 1/2 interventional study of Atezolizumab and Bendamustine in Diffuse Large B-Cell Lymphoma, Lymphoma Follicular, sponsored by Hoffmann-La Roche. Completed at 21 sites in 3 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2021-05-24.
Sponsored by Hoffmann-La Roche · Phase 1/2, Interventional, and Treatment
This Phase Ib/II, open-label, multicenter, non-randomized study will evaluate the safety, efficacy, and pharmacokinetics of induction treatment consisting of atezolizumab in combination with either obinutuzumab + bendamustine (Atezo-G-benda) or obinutuzumab + CHOP (Atezo-G-CHOP) in participants with FL and atezolizumab + rituximab + chemotherapy (Atezo-R-CHOP) in participants with DLBCL, followed by post-induction treatment consisting of either atezolizumab plus obinutuzumab (Atezo-G) in participants with FL who achieve a complete response (CR) or partial response (PR) at end of induction (EOI) or atezolizumab alone in participants with DLBCL who achieve a CR at EOI.
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Exclusion Criteria:
Safety run-in phase: Participants with previously untreated or relapsed or refractory FL will receive obinutuzumab (G) and bendamustine during Cycle 1 (28-day cycle) and atezolizumab, obinutuzumab, and bendamustine during Cycles 2-6, during induction treatment, followed by atezolizumab (once monthly) and obinutuzumab (every other month \[q2m\]) for 24 months, during maintenance treatment. Expansion phase: Participants with previously untreated FL will receive same treatment regimen as described for safety run-in phase.
Drug: Atezolizumab · Drug: Bendamustine · Drug: Obinutuzumab
Safety run-in phase: Participants with previously untreated or relapsed or refractory FL will receive obinutuzumab and CHOP during Cycle 1 (21-day cycle) and atezolizumab, obinutuzumab, and CHOP during Cycles 2-6, during induction treatment, followed by atezolizumab (once monthly) and obinutuzumab (q2m) for 24 months, during maintenance treatment.
Drug: Atezolizumab · Drug: Cyclophosphamide · Drug: Doxorubicin · Drug: Obinutuzumab · Drug: Prednisone · Drug: Vincristine
Participants with previously untreated DLBCL will receive rituximab and CHOP during Cycle 1 (21-day cycle) and atezolizumab, rituximab, and CHOP during Cycles 2-8 (atezolizumab and rituximab for 8 cycles and CHOP for either 6 or 8 cycles, as determined by the investigator), during induction treatment, followed by atezolizumab from Cycles 9-25 during consolidation treatment.
Drug: Atezolizumab · Drug: Cyclophosphamide · Drug: Doxorubicin · Drug: Prednisone · Drug: Vincristine · Drug: Rituximab
Atezo-G-Benda: Atezolizumab 840 milligrams (mg) intravenously (IV) on Days 1 and 15 of Cycles 2-6, during induction treatment, followed by 840 mg IV on Days 1 and 2 of each month, starting with Month 1, during maintenance treatment. Atezo-G-CHOP: Atezolizumab 1200 mg IV on Day 1 Cycles 2-6, during induction treatment, followed by 840 mg IV on Days 1 and 2 of each month, starting with Month 1. Atezo-R-CHOP: Atezolizumab 1200 mg IV on Day 1 Cycles 2-8, during induction treatment, followed by 1200 mg IV on Day 1 of Cycles 9-25.
Also known as: RO5541267; Tecentriq
Bendamustine will be administered at a dose of 90 milligrams per square meter (mg/m\^2) IV on Days 1 and 2 of Cycles 1-6, during induction treatment.
Cyclophosphamide will be administered at a dose of 750 mg/m\^2 IV on Day 1 of Cycle 1-6/8, during induction treatment.
Doxorubicin will be administered at a dose of 50 mg/m\^2 IV on Day 1 of Cycle 1-6/8, during induction treatment.
Atezo-G-Benda: Obinutuzumab will be administered at a dose of 1000 mg IV on Days 1, 8, and 15 of Cycle 1 and 1000 mg IV on Day 1 of Cycles 2-6, during induction treatment, followed by 1000 mg IV on Day 1 of every other month, starting with Month 1, during maintenance treatment. Atezo-G-CHOP: Obinutuzumab will be administered at a dose of 1000 mg IV on Days 1, 8, and 15 of Cycle 1 and 1000 mg IV on Day 1 of Cycles 2-6 during induction treatment, followed by 1000 mg IV on Day 1 of every other month, starting with Month 1 during maintenance treatment.
Also known as: RO5072759
Prednisone will be administered at a dose of 40 mg/m\^2 orally on Days 1-5 of Cycle 1-6/8, during induction treatment. Prednisolone may be given if prednisone is unavailable. The 40 mg/m\^2 dose of prednisone on Day 1 will be replaced by oral corticosteroids given as premedication on Day 1 of Cycle 1 (and subsequent cycles).
Vincristine will be administered at a dose of 1.4 mg/m\^2 (maximum 2 mg) IV on Day 1 of Cycle 1-6/8, during induction treatment.
Atezo-R-CHOP: Participants with previously untreated DLBCL will receive rituximab at a dose of 375 mg/m\^2 IV on Day 1 of Cycle 1-8, during induction treatment.
Percentage of Participants With Complete Response (CR) at End of Induction (EOI), as Determined by the Independent Review Committee (IRC) Using Modified Lugano 2014 Criteria
Primary end point was positron emission tomography (PET) CR at EOI by 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. All PET evaluable 1L FL and 1L DLBCL participants with at least one dose of atezolizumab were included in efficacy population.
Time frame: Up to approximately 6 months
Percentage of Participants With Adverse Events
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 4 years
Percentage of Participants With CR at EOI, as Determined by the Investigator Using Lugano 2014 Criteria
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% confidence interval (CI) for percentage of responders was calculated using Clopper-Pearson method. All PET evaluable 1L FL and 1L DLBCL patients with at least one dose of atezolizumab were included in efficacy population.
Time frame: Up to approximately 6 months
Percentage of Participants With CR at EOI, as Determined by the IRC Using Modified Cheson 2007 Criteria
Complete response according to the modified Cheson 2007 criteria using PET/CT scan: complete disappearance of all detectable clinical evidence of disease and disease-related symptoms if present prior to therapy, liver and spleen have returned to normal size (if enlarged at baseline), If the bone marrow was involved by lymphoma prior to treatment, the infiltrate must have cleared on repeat bone marrow biopsy. Partial Response (PR): at least 50% regression of measurable disease compared to tumors measured by a baseline scan and no new sites; no increase in the size of the other nodes, liver, or spleen; with the exception of splenic and hepatic nodules, involvement of other organs is usually assessable and no measurable disease should be present. All PET evaluable 1L FL and 1L DLBCL patients with at least one dose of atezolizumab were included in efficacy population.
Time frame: Up to approximately 6 months
Percentage of Participants With CR at EOI, as Determined by the Investigator Using Modified Cheson 2007 Criteria
Complete response according to modified Cheson 2007 criteria using PET/CT scan: complete disappearance of all detectable clinical evidence of disease and disease-related symptoms if present prior to therapy, liver and spleen have returned to normal size (if enlarged at baseline), If bone marrow was involved by lymphoma prior to treatment, infiltrate must have cleared on repeat bone marrow biopsy. PR: at least 50% regression of measurable disease compared to tumors measured by a baseline scan and no new sites; no increase in the size of other nodes, liver, or spleen; with exception of splenic and hepatic nodules, involvement of other organs is usually assessable and no measurable disease should be present. All PET evaluable 1L FL and 1L DLBCL patients with at least one dose of atezolizumab were included in efficacy population. Only Atezo-G-Benda and Atezo-R-Chop cohorts were evaluated for efficacy.
Time frame: Up to approximately 6 months
Percentage of Participants With Objective Response (CR or PR) at EOI, as Determined by the IRC Using Modified Cheson 2007 Criteria
Objective response: having CR or PR as assessed according to the modified response criteria for iNHL (Modified Cheson et al, 2007). CR: Complete disappearance of all detectable clinical evidence of disease and disease-related symptoms if present prior to therapy, liver and spleen have returned to normal size (if enlarged at baseline), If the bone marrow was involved by lymphoma prior to treatment, the infiltrate must have cleared on repeat bone marrow biopsy. PR: at least 50% regression of measurable disease compared to tumors measured by a baseline scan and no new sites; no increase in the size of the other nodes, liver, or spleen; with the exception of splenic and hepatic nodules, involvement of other organs is usually assessable and no measurable disease should be present. All positron emission tomography (PET) evaluable 1L FL and 1L DLBCL patients with at least one dose of atezolizumab were included in efficacy population.
Time frame: Up to approximately 6 months
Percentage of Participants With Objective Response (CR or PR) at EOI, as Determined by the Investigator Using Modified Cheson 2007 Criteria
Objective response: having CR or PR as assessed according to the modified response criteria for iNHL (Modified Cheson et al, 2007). CR: Complete disappearance of all detectable clinical evidence of disease and disease-related symptoms if present prior to therapy, liver and spleen have returned to normal size (if enlarged at baseline), If the bone marrow was involved by lymphoma prior to treatment, the infiltrate must have cleared on repeat bone marrow biopsy. PR: at least 50% regression of measurable disease compared to tumors measured by a baseline scan and no new sites; no increase in the size of the other nodes, liver, or spleen; with the exception of splenic and hepatic nodules, involvement of other organs is usually assessable and no measurable disease should be present. All positron emission tomography (PET) evaluable 1L FL and 1L DLBCL patients with at least one dose of atezolizumab were included in efficacy population.
Time frame: Up to approximately 6 months
Percentage of Participants With Objective Response (CR or PR) at EOI, as Determined by the IRC Using Lugano 2014 Criteria
Tumor response assessment was performed by IRC according to modified Lugano classification using PET/CT scan. OR defined as a response of CR or PR. CR: a score of 1 (no uptake above background), 2 (uptake \</=mediastinum), or 3 (uptake \<mediastinum but \</=liver) with/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: 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. All positron emission tomography (PET) evaluable 1L FL and 1L DLBCL patients with at least one dose of atezolizumab were included in efficacy population.
Time frame: Up to approximately 6 months
Percentage of Participants With Objective Response (CR or PR) at EOI, as Determined by the Investigator Using Lugano 2014 Criteria
Tumor response assessment was performed by investigator according to modified Lugano classification using PET/CT scan. OR: a response of CR or PR. CR: 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 \& extralymphatic sites; no new lesions; no evidence of FDG-avid disease in bone marrow; and normal/IHC-negative bone marrow morphology. PR with 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. All positron emission tomography (PET) evaluable 1L FL and 1L DLBCL patients with at least one dose of atezolizumab were included in efficacy population.
Time frame: Up to approximately 6 months
Percentage of Participants With Best Response of CR or PR During Study, as Determined by Investigator Using Modified Cheson 2007 Criteria
CR: Complete disappearance of all detectable clinical evidence of disease and disease-related symptoms if present prior to therapy, liver and spleen have returned to normal size (if enlarged at baseline), If the bone marrow was involved by lymphoma prior to treatment, the infiltrate must have cleared on repeat bone marrow biopsy. PR: at least 50% regression of measurable disease compared to tumors measured by a baseline scan and no new sites; no increase in the size of the other nodes, liver, or spleen; with the exception of splenic and hepatic nodules, involvement of other organs is usually assessable and no measurable disease should be present. Only Atezo-G-Benda and Atezo-R-Chop cohorts were evaluated for efficacy.
Time frame: Baseline up to approximately 4 years (assessed at Baseline, 6 to 8 weeks after Day [D] 1 of Cycle [Cy] 6 or 8 (1Cy: 21 or 28 days), then every 2 months up to 24 months, at 35 days of last dose, and at every 3 months post-treatment follow-up [up 4 years])
Observed Serum Obinutuzumab Concentration
Predose time point was "any time prior to dose" for Cycle (Cy) 1 and "within 5 hour prior to dose" for other cycles (Cy 2,5,6) and for Months 1 to 24 during maintenance phase. Infusion duration for administration of first infusion should begin at an initial rate of 50 milligrams per hour (mg/hour). If no reaction occurs, increase the infusion rate in 100 mg/hour increments every 30 minutes to a maximum of 400 mg/hour.
Time frame: Induction: Predose, 0.5 hour (h) postinfusion on Day (D) 1 of Cy1,2,5,6 (1Cy: 21/28 days); Maintenance: Predose, 0.5h postinfusion on Day 1 of Month 1,3,7,15,23; 120 days & 1 year of last dose or at treatment discontinuation (up to 4 years)
Observed Serum Atezolizumab Concentration
Atezo-G-Benda: Induction:Predose on D1 of Cy5,6 \& D1,15 of Cy2,3 (1Cy:21/28 days), Cy2D1:0.5h postinfusion; Maintenance:Predose on D1 of Month 1,2,4,7,15,23, Month 2 D1: 0.5h postinfusion; 120 days \& 1 year of last dose or at treatment discontinuation (up to 4 years); Atezo-G-CHOP: Induction:Predose on D1 of Cy2,3,5,6 (1Cy:21 days), Cy2D1:0.5h postinfusion; Maintenance:Predose on D1 of Month 1,2,3,4,7,15,23, Month 2 D1: 0.5h postinfusion; 120 days \& 1 year of last dose or at treatment discontinuation (up to 4 years). Predose time point was "within 5 hour prior to dose" for Cy2,3,5,6 during induction phase and for Months 1 to 24 during maintenance phase. infusion length: 30-60 minutes.
Time frame: Atezo-R-CHOP: Predose on D1 of Cy2,3,5,8,9,10,11,12,16,20,25 (1Cy:21 days), 0.5h postinfusion of D1 of Cy2,9; at 120 days & 1 year of last dose or at treatment discontinuation (up to 4 years)
Observed Serum Rituximab Concentration
Predose time point was "any time prior to dose" for Cycle 1 and "within 5 hour prior to dose" for other cycles (Cycles 2,5,8) during induction phase and for Months 1 to 24 during maintenance phase. Infusion duration for administration of first infusion should begin at an initial rate of 50 mg/hour. If no infusion-related or hypersensitivity reaction occurs, increase the infusion rate in 50 mg/hour increments every 30 minutes to a maximum of 400 mg/hour. If no reaction occurs, increase the infusion rate in 100 mg/hour increments every 30 minutes to a maximum of 400 mg/hour.
Time frame: Predose, 0.5h postinfusion on D1 of Cy1,2,5,8 (1Cy: 21 days); at 120 days and 1 year after last rituximab dose or at treatment discontinuation (up to 4 years)
Percentage of Participants With Human Anti-Human Antibodies (HAHAs) to Obinutuzumab
Induction: Predose (any time prior to dose) on D1 of Cy1,5,6 (1Cy: 21/28 days); Maintenance: Predose (any time prior to dose) on D1 of Month 1; at 120 days and 1 year of last obinutuzumab dose or at treatment discontinuation (up to 4 years)
Time frame: Baseline up to approximately 4 years
Percentage of Participants With Human Anti-Chimeric Antibodies (HACAs) to Rituximab
Induction: Predose (any time prior to dose) on D1 of Cy1,5,8 (1Cy: 21 days); Maintenance: at 120 days and 1 year of last rituximab dose or at treatment discontinuation (up to 4 years)
Time frame: Baseline up to approximately 4 years
Percentage of Participants With Anti-Therapeutic Antibodies (ATAs) to Atezolizumab
Atezo-G-CHOP: Induction: Predose on D1 of Cy2,3,5,6 (1 Cy: 21 days); Maintenance: Predose on D1 of Month 1,2,4,7,15,23; at 120 days and 1 year of last atezolizumab dose or at treatment discontinuation (up to 4 years); Atezo-R-CHOP: Predose on D1 of Cy 2,3,5,8,16,25 (1 Cy: 21 days); at 120 days and 1 year of last atezolizumab dose or at treatment discontinuation (up to 4 years). Predose time point was "any time prior to dose" for Cycles 2,3,5,6,8 during induction phase, for Cycles 16,25 during consolidation treatment, and for Months 1 to 24 during maintenance phase. Atezo-G-Benda: Induction: Predose on D1 of Cy2,3,5,6 (1Cy: 28 days), Cy3D15: Predose; ; Maintenance: Predose on D1 of Month 1,4,7,15,23; at 120 days and 1 year of last atezolizumab dose or at treatment discontinuation (up to 4 years). The percentage of participants with positive results for ATAs to atezolizumab at baseline and at post-baseline time points are reported.
Time frame: Baseline up to approximately 4 years
The study was conducted at 15 sites in 3 countries (Italy, Australia, and USA).
| Milestone | Atezo-G-Benda Cohort (Safety Run-In and Expansion Phases) | Atezo-G-CHOP Cohort (Safety Run-In Phase) | Atezo-R-CHOP Cohort (Expansion Phase) |
|---|---|---|---|
| Started | 42 | 7 | 42 |
| Completed | 32 | 5 | 33 |
| Not completed | 10 | 2 | 9 |
| Withdrew: Death | 5 | 1 | 5 |
| Withdrew: Withdrawal by subject | 5 | 1 | 4 |
Primary end point was positron emission tomography (PET) CR at EOI by 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. All PET evaluable 1L FL and 1L DLBCL participants with at least one dose of atezolizumab were included in efficacy population.
| percentage of participants | Atezo-G-Benda Cohort (Safety Run-In and Expansion Phases) | Atezo-R-CHOP Cohort (Expansion Phase) |
|---|---|---|
| Percentage of Participants With Complete Response (CR) at End of Induction (EOI), as Determined by the Independent Review Committee (IRC) Using Modified Lugano 2014 Criteria | 75 (61.29 to 85.76) | 77.5 (64.02 to 87.73) |
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.
| percentage of participants | Atezo-G-Benda Cohort (Safety Run-In and Expansion Phases) | Atezo-G-CHOP Cohort (Safety Run-In Phase) | Atezo-R-CHOP Cohort (Expansion Phase) |
|---|---|---|---|
| Percentage of Participants With Adverse Events | 100 | 100 | 100 |
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% confidence interval (CI) for percentage of responders was calculated using Clopper-Pearson method. All PET evaluable 1L FL and 1L DLBCL patients with at least one dose of atezolizumab were included in efficacy population.
| percentage of participants | Atezo-G-Benda Cohort (Safety Run-In and Expansion Phases) | Atezo-R-CHOP Cohort (Expansion Phase) |
|---|---|---|
| Percentage of Participants With CR at EOI, as Determined by the Investigator Using Lugano 2014 Criteria | 87.5 (75.50 to 94.94) | 77.5 (64.02 to 87.73) |
Complete response according to the modified Cheson 2007 criteria using PET/CT scan: complete disappearance of all detectable clinical evidence of disease and disease-related symptoms if present prior to therapy, liver and spleen have returned to normal size (if enlarged at baseline), If the bone marrow was involved by lymphoma prior to treatment, the infiltrate must have cleared on repeat bone marrow biopsy. Partial Response (PR): at least 50% regression of measurable disease compared to tumors measured by a baseline scan and no new sites; no increase in the size of the other nodes, liver, or spleen; with the exception of splenic and hepatic nodules, involvement of other organs is usually assessable and no measurable disease should be present. All PET evaluable 1L FL and 1L DLBCL patients with at least one dose of atezolizumab were included in efficacy population.
| percentage of participants | Atezo-G-Benda Cohort (Safety Run-In and Expansion Phases) | Atezo-R-CHOP Cohort (Expansion Phase) |
|---|---|---|
| Percentage of Participants With CR at EOI, as Determined by the IRC Using Modified Cheson 2007 Criteria | 75.0 (61.29 to 85.76) | 77.5 (64.02 to 87.73) |
Complete response according to modified Cheson 2007 criteria using PET/CT scan: complete disappearance of all detectable clinical evidence of disease and disease-related symptoms if present prior to therapy, liver and spleen have returned to normal size (if enlarged at baseline), If bone marrow was involved by lymphoma prior to treatment, infiltrate must have cleared on repeat bone marrow biopsy. PR: at least 50% regression of measurable disease compared to tumors measured by a baseline scan and no new sites; no increase in the size of other nodes, liver, or spleen; with exception of splenic and hepatic nodules, involvement of other organs is usually assessable and no measurable disease should be present. All PET evaluable 1L FL and 1L DLBCL patients with at least one dose of atezolizumab were included in efficacy population. Only Atezo-G-Benda and Atezo-R-Chop cohorts were evaluated for efficacy.
| percentage of participants | Atezo-G-Benda Cohort (Safety Run-In and Expansion Phases) | Atezo-R-CHOP Cohort (Expansion Phase) |
|---|---|---|
| Percentage of Participants With CR at EOI, as Determined by the Investigator Using Modified Cheson 2007 Criteria | 80.0 (66.80 to 89.64) | 75.0 (61.29 to 85.76) |
Objective response: having CR or PR as assessed according to the modified response criteria for iNHL (Modified Cheson et al, 2007). CR: Complete disappearance of all detectable clinical evidence of disease and disease-related symptoms if present prior to therapy, liver and spleen have returned to normal size (if enlarged at baseline), If the bone marrow was involved by lymphoma prior to treatment, the infiltrate must have cleared on repeat bone marrow biopsy. PR: at least 50% regression of measurable disease compared to tumors measured by a baseline scan and no new sites; no increase in the size of the other nodes, liver, or spleen; with the exception of splenic and hepatic nodules, involvement of other organs is usually assessable and no measurable disease should be present. All positron emission tomography (PET) evaluable 1L FL and 1L DLBCL patients with at least one dose of atezolizumab were included in efficacy population.
| percentage of participants | Atezo-G-Benda Cohort (Safety Run-In and Expansion Phases) | Atezo-R-CHOP Cohort (Expansion Phase) |
|---|---|---|
| Percentage of Participants With Objective Response (CR or PR) at EOI, as Determined by the IRC Using Modified Cheson 2007 Criteria | 90.0 (78.56 to 96.51) | 90.0 (78.56 to 96.51) |
Objective response: having CR or PR as assessed according to the modified response criteria for iNHL (Modified Cheson et al, 2007). CR: Complete disappearance of all detectable clinical evidence of disease and disease-related symptoms if present prior to therapy, liver and spleen have returned to normal size (if enlarged at baseline), If the bone marrow was involved by lymphoma prior to treatment, the infiltrate must have cleared on repeat bone marrow biopsy. PR: at least 50% regression of measurable disease compared to tumors measured by a baseline scan and no new sites; no increase in the size of the other nodes, liver, or spleen; with the exception of splenic and hepatic nodules, involvement of other organs is usually assessable and no measurable disease should be present. All positron emission tomography (PET) evaluable 1L FL and 1L DLBCL patients with at least one dose of atezolizumab were included in efficacy population.
| percentage of participants | Atezo-G-Benda Cohort (Safety Run-In and Expansion Phases) | Atezo-R-CHOP Cohort (Expansion Phase) |
|---|---|---|
| Percentage of Participants With Objective Response (CR or PR) at EOI, as Determined by the Investigator Using Modified Cheson 2007 Criteria | 95.0 (85.08 to 99.10) | 87.5 (75.50 to 94.94) |
Tumor response assessment was performed by IRC according to modified Lugano classification using PET/CT scan. OR defined as a response of CR or PR. CR: a score of 1 (no uptake above background), 2 (uptake \</=mediastinum), or 3 (uptake \<mediastinum but \</=liver) with/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: 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. All positron emission tomography (PET) evaluable 1L FL and 1L DLBCL patients with at least one dose of atezolizumab were included in efficacy population.
| percentage of participants | Atezo-G-Benda Cohort (Safety Run-In and Expansion Phases) | Atezo-R-CHOP Cohort (Expansion Phase) |
|---|---|---|
| Percentage of Participants With Objective Response (CR or PR) at EOI, as Determined by the IRC Using Lugano 2014 Criteria | 90.0 (78.56 to 96.51) | 87.5 (75.50 to 94.94) |
Tumor response assessment was performed by investigator according to modified Lugano classification using PET/CT scan. OR: a response of CR or PR. CR: 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 \& extralymphatic sites; no new lesions; no evidence of FDG-avid disease in bone marrow; and normal/IHC-negative bone marrow morphology. PR with 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. All positron emission tomography (PET) evaluable 1L FL and 1L DLBCL patients with at least one dose of atezolizumab were included in efficacy population.
| percentage of participants | Atezo-G-Benda Cohort (Safety Run-In and Expansion Phases) | Atezo-R-CHOP Cohort (Expansion Phase) |
|---|---|---|
| Percentage of Participants With Objective Response (CR or PR) at EOI, as Determined by the Investigator Using Lugano 2014 Criteria | 95.0 (85.08 to 99.10) | 87.5 (75.50 to 94.94) |
CR: Complete disappearance of all detectable clinical evidence of disease and disease-related symptoms if present prior to therapy, liver and spleen have returned to normal size (if enlarged at baseline), If the bone marrow was involved by lymphoma prior to treatment, the infiltrate must have cleared on repeat bone marrow biopsy. PR: at least 50% regression of measurable disease compared to tumors measured by a baseline scan and no new sites; no increase in the size of the other nodes, liver, or spleen; with the exception of splenic and hepatic nodules, involvement of other organs is usually assessable and no measurable disease should be present. Only Atezo-G-Benda and Atezo-R-Chop cohorts were evaluated for efficacy.
| percentage of participants | Atezo-G-Benda Cohort (Safety Run-In and Expansion Phases) | Atezo-R-CHOP Cohort (Expansion Phase) |
|---|---|---|
| Percentage of Participants With Best Response of CR or PR During Study, as Determined by Investigator Using Modified Cheson 2007 Criteria | 80.0 (66.80 to 89.64) | 75.0 (61.29 to 85.76) |
Predose time point was "any time prior to dose" for Cycle (Cy) 1 and "within 5 hour prior to dose" for other cycles (Cy 2,5,6) and for Months 1 to 24 during maintenance phase. Infusion duration for administration of first infusion should begin at an initial rate of 50 milligrams per hour (mg/hour). If no reaction occurs, increase the infusion rate in 100 mg/hour increments every 30 minutes to a maximum of 400 mg/hour.
| ug/mL | Atezo-G-Benda Cohort (Safety Run-In and Expansion Phases) | Atezo-G-CHOP Cohort (Safety Run-In Phase) |
|---|---|---|
| C1 Cmax after 1st infusion | 329 (21.7 to 513) | 400 (284 to 450) |
| C1 Cmin after the last infusion on C1 | 322 (168 to 486) | 399 (236 to 611) |
| C6 - Cmax after last dosing of induction | 544 (387 to 883) | 659 (287 to 838) |
| C6 - Cmin after last dosing of induction | 203 (137 to 471) | 245 (171 to 481) |
Atezo-G-Benda: Induction:Predose on D1 of Cy5,6 \& D1,15 of Cy2,3 (1Cy:21/28 days), Cy2D1:0.5h postinfusion; Maintenance:Predose on D1 of Month 1,2,4,7,15,23, Month 2 D1: 0.5h postinfusion; 120 days \& 1 year of last dose or at treatment discontinuation (up to 4 years); Atezo-G-CHOP: Induction:Predose on D1 of Cy2,3,5,6 (1Cy:21 days), Cy2D1:0.5h postinfusion; Maintenance:Predose on D1 of Month 1,2,3,4,7,15,23, Month 2 D1: 0.5h postinfusion; 120 days \& 1 year of last dose or at treatment discontinuation (up to 4 years). Predose time point was "within 5 hour prior to dose" for Cy2,3,5,6 during induction phase and for Months 1 to 24 during maintenance phase. infusion length: 30-60 minutes.
| ug/mL | Atezo-G-Benda Cohort (Safety Run-In and Expansion Phases) | Atezo-R-CHOP Cohort (Expansion Phase) | Atezo-G-CHOP Cohort (Safety Run-In Phase) |
|---|---|---|---|
| Cycle 2 - Cmax after 1st infusion | 275 (193 to 388) | 332 (227 to 472) | 424 (340 to 670) |
| C2 - Cmin before 2nd infusion | 83 (59 to 128) | 82.1 (55.7 to 122) | 94 (65 to 139) |
| C6 - Cmin after 6th infusion | 256 (93 to 369) | — | 195 (157 to 296) |
| C8 - Cmax after 7th infusion | — | 486.5 (363 to 793) | — |
| C8 - Cmin before 8th infusion | — | 184 (104 to 359) | — |
Predose time point was "any time prior to dose" for Cycle 1 and "within 5 hour prior to dose" for other cycles (Cycles 2,5,8) during induction phase and for Months 1 to 24 during maintenance phase. Infusion duration for administration of first infusion should begin at an initial rate of 50 mg/hour. If no infusion-related or hypersensitivity reaction occurs, increase the infusion rate in 50 mg/hour increments every 30 minutes to a maximum of 400 mg/hour. If no reaction occurs, increase the infusion rate in 100 mg/hour increments every 30 minutes to a maximum of 400 mg/hour.
| ug/mL | Atezo-R-CHOP Cohort (Expansion Phase) |
|---|---|
| C1 - Cmax after dosing C1 | 159 (0.5 to 292) |
| C1 - Ctrough after dosing C1 | 26.1 (0.5 to 41.3) |
| C8 - Cmax after dosing C8 | 229 (185 to 303) |
| C8 - Ctrough after dosing C8 | 105.5 (39.9 to 150) |
Induction: Predose (any time prior to dose) on D1 of Cy1,5,6 (1Cy: 21/28 days); Maintenance: Predose (any time prior to dose) on D1 of Month 1; at 120 days and 1 year of last obinutuzumab dose or at treatment discontinuation (up to 4 years)
| percentage of participants | Atezo-G-Benda Cohort (Safety Run-In and Expansion Phases) |
|---|---|
| Induction Cycle 1 Day 1 | 2.4 |
| Induction Cycle 5 Day 1 | 0 |
| Induction Cycle 6 Day 1 | 0 |
| Maintenance Month 1 | 0 |
| Study Drug Completion or Early Discontinuation | 0 |
| Obinutuzumab Day 120 Follow up | 0 |
Induction: Predose (any time prior to dose) on D1 of Cy1,5,8 (1Cy: 21 days); Maintenance: at 120 days and 1 year of last rituximab dose or at treatment discontinuation (up to 4 years)
| percentage of participants | Atezo-R-CHOP Cohort (Expansion Phase) |
|---|---|
| Baseline | 14.3 |
| Induction Cycle 1 Day 1 | 0 |
| Induction Cycle 5 Day 1 | 0 |
| Induction Cycle 8 Day 1 | 0 |
| Rituximab Day 120 Follow up | 0 |
| Rituximab 1 Year Follow up | 0 |
| Study Drug Completion or Early Discontinuation | 0 |
Atezo-G-CHOP: Induction: Predose on D1 of Cy2,3,5,6 (1 Cy: 21 days); Maintenance: Predose on D1 of Month 1,2,4,7,15,23; at 120 days and 1 year of last atezolizumab dose or at treatment discontinuation (up to 4 years); Atezo-R-CHOP: Predose on D1 of Cy 2,3,5,8,16,25 (1 Cy: 21 days); at 120 days and 1 year of last atezolizumab dose or at treatment discontinuation (up to 4 years). Predose time point was "any time prior to dose" for Cycles 2,3,5,6,8 during induction phase, for Cycles 16,25 during consolidation treatment, and for Months 1 to 24 during maintenance phase. Atezo-G-Benda: Induction: Predose on D1 of Cy2,3,5,6 (1Cy: 28 days), Cy3D15: Predose; ; Maintenance: Predose on D1 of Month 1,4,7,15,23; at 120 days and 1 year of last atezolizumab dose or at treatment discontinuation (up to 4 years). The percentage of participants with positive results for ATAs to atezolizumab at baseline and at post-baseline time points are reported.
| percentage of participants | Atezo-G-Benda Cohort (Safety Run-In and Expansion Phases) | Atezo-G-CHOP Cohort (Safety Run-In Phase) | Atezo-R-CHOP Cohort (Expansion Phase) |
|---|---|---|---|
| Baseline | 2.4 | 0 | 14.3 |
| Induction Cycle 2 Day 1 | 0 | 0 | 2.6 |
| Consolidation Cycle 16 | — | — | 5.9 |
| Atezolizumab Day 120 Follow up | 0 | 0 | 9.1 |
| Atezo PK and Immunogenicity Follow Up (1YR) | 0 | 0 | 5.6 |
Collected over Baseline up to approximately 4 years. Non-serious events are listed at a 5% frequency threshold.
| Group | Deaths | Serious | Other |
|---|---|---|---|
| Atezo-G-Benda Cohort (Safety Run-In and Expansion Phases) | 5/42 (11.9%) | 19/42 (45.2%) | 42/42 (100%) |
| Atezo-G-CHOP Cohort (Safety Run-In Phase) | 1/7 (14.3%) | 2/7 (28.6%) | 7/7 (100%) |
| Atezo-R-CHOP Cohort (Expansion Phase) | 5/42 (11.9%) | 18/42 (42.9%) | 42/42 (100%) |
| Event | Atezo-G-Benda Cohort (Safety Run-In and Expansion Phases) | Atezo-G-CHOP Cohort (Safety Run-In Phase) | Atezo-R-CHOP Cohort (Expansion Phase) |
|---|---|---|---|
| FEBRILE NEUTROPENIABlood and lymphatic system disorders | 4/42 | 1/7 | 6/42 |
| NEUTROPENIABlood and lymphatic system disorders | 0/42 | 1/7 | 0/42 |
| KIDNEY INFECTIONInfections and infestations | 0/42 | 1/7 | 0/42 |
| PNEUMONIAInfections and infestations | 5/42 | 0/7 | 2/42 |
| PYREXIAGeneral disorders | 3/42 | 0/7 | 0/42 |
| UPPER RESPIRATORY TRACT INFECTIONInfections and infestations | 2/42 | 0/7 | 0/42 |
| INFUSION RELATED REACTIONInjury, poisoning and procedural complications | 2/42 | 0/7 | 0/42 |
| AUTOIMMUNE HAEMOLYTIC ANAEMIABlood and lymphatic system disorders | 0/42 | 0/7 | 1/42 |
| THROMBOCYTOPENIABlood and lymphatic system disorders | 0/42 | 0/7 | 1/42 |
| ATRIAL FIBRILLATIONCardiac disorders | 0/42 | 0/7 | 1/42 |
| Event | Atezo-G-Benda Cohort (Safety Run-In and Expansion Phases) | Atezo-G-CHOP Cohort (Safety Run-In Phase) | Atezo-R-CHOP Cohort (Expansion Phase) |
|---|---|---|---|
| NAUSEAGastrointestinal disorders | 22/42 | 5/7 | 13/42 |
| FATIGUEGeneral disorders | 23/42 | 5/7 | 17/42 |
| COUGHRespiratory, thoracic and mediastinal disorders | 25/42 | 5/7 | 12/42 |
| INFUSION RELATED REACTIONInjury, poisoning and procedural complications | 29/42 | 2/7 | 16/42 |
| BACK PAINMusculoskeletal and connective tissue disorders | 10/42 | 4/7 | 8/42 |
| NEUTROPENIABlood and lymphatic system disorders | 14/42 | 3/7 | 22/42 |
| DIARRHOEAGastrointestinal disorders | 20/42 | 3/7 | 14/42 |
| HEADACHENervous system disorders | 19/42 | 1/7 | 8/42 |
| CONSTIPATIONGastrointestinal disorders | 18/42 | 3/7 | 18/42 |
| RASHSkin and subcutaneous tissue disorders | 14/42 | 0/7 | 4/42 |
3 populations for the Atezo-G-Benda cohort: safety, efficacy, and pharmacokinetic (PK). All participants (n = 42) in Atezo-G-Benda cohort included in safety and positron emission tomography (PET) evaluable populations. Two participants were excluded from efficacy evaluable population due to diagnosis of relapsed/ refractory follicular lymphoma (r/r FL). All 42 FL participants in Atezo-G-Benda cohort included in PK evaluable population.
| Age, Categorical(Participants) | Atezo-G-Benda Cohort (Safety Run-In and Expansion Phases) | Atezo-G-CHOP Cohort (Safety Run-In Phase) | Atezo-R-CHOP Cohort (Expansion Phase) | Total |
|---|---|---|---|---|
| <=18 years | 0 | 0 | 0 | 0 |
| Between 18 and 65 years | 35 | 6 | 20 | 61 |
| >=65 years | 7 | 1 | 22 | 30 |
| Age, Continuous(years) | Atezo-G-Benda Cohort (Safety Run-In and Expansion Phases) | Atezo-G-CHOP Cohort (Safety Run-In Phase) | Atezo-R-CHOP Cohort (Expansion Phase) | Total |
|---|---|---|---|---|
| Mean | 55.6 ± 10.9 | 57.4 ± 5.4 | 59.2 ± 15.7 | 57.4 ± 13.1 |
| Sex: Female, Male(Participants) | Atezo-G-Benda Cohort (Safety Run-In and Expansion Phases) | Atezo-G-CHOP Cohort (Safety Run-In Phase) | Atezo-R-CHOP Cohort (Expansion Phase) | Total |
|---|---|---|---|---|
| Female | 20 | 4 | 16 | 40 |
| Male | 22 | 3 | 26 | 51 |
| Ethnicity (NIH/OMB)(Participants) | Atezo-G-Benda Cohort (Safety Run-In and Expansion Phases) | Atezo-G-CHOP Cohort (Safety Run-In Phase) | Atezo-R-CHOP Cohort (Expansion Phase) | Total |
|---|---|---|---|---|
| Hispanic or Latino | 3 | 0 | 2 | 5 |
| Not Hispanic or Latino | 36 | 7 | 37 | 80 |
| Unknown or Not Reported | 3 | 0 | 3 | 6 |
| Race (NIH/OMB)(Participants) | Atezo-G-Benda Cohort (Safety Run-In and Expansion Phases) | Atezo-G-CHOP Cohort (Safety Run-In Phase) | Atezo-R-CHOP Cohort (Expansion Phase) | Total |
|---|---|---|---|---|
| American Indian or Alaska Native | 0 | 0 | 0 | 0 |
| Asian | 3 | 1 | 0 | 4 |
| Native Hawaiian or Other Pacific Islander | 0 | 0 | 0 | 0 |
| Black or African American | 0 | 0 | 0 | 0 |
| White | 37 | 6 | 40 | 83 |
| More than one race | 0 | 0 | 0 | 0 |
| Unknown or Not Reported | 2 | 0 | 2 | 4 |
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Hoffmann-La Roche