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An Open-Label, Single Arm Study of Obinutuzumab Short Duration Infusion in Patients With Previously Untreated Advanced Follicular Lymphoma

A Multicentric, Open-Label, Single Arm Study of Obinutuzumab Short Duration Infusion (SDI) in Patients With Previously Untreated Advanced Follicular Lymphoma

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03817853
Enrollment
114
Registered
2019-01-28
Start date
2019-02-26
Completion date
2023-01-25
Last updated
2024-04-04

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

Conditions

Advanced Follicular Lymphoma

Brief summary

This open-label, single arm study will evaluate the safety of obinutuzumab administered as a short duration infusion (SDI; target 90-minute infusion) during cycle 2 and from cycle 2 onwards in combination with chemotherapy in participants with previously untreated advanced follicular lymphoma (FL). The study has two phases: in the first phase, participants will receive the first cycle of obinutuzumab-based chemotherapy (G-chemo) induction therapy as usual with the first three infusions of obinutuzumab (1000 mg) administered at the regular infusion rate on Day 1, 8, and 15 of cycle 1. Phase 2 starts when participants who do not experience any Grade ≥ 3 infusion related reactions during the first cycle receive their first obintuzumab infusion given at the faster infusion rate in Cycle 2. For Cycle 2, Day 1 and all other following infusions (including maintenance), obinutuzumab will be administered at a faster infusion of 90-minute SDI, as long as the participant does not experience any Grade ≥ 3 infusion related reactions. The investigator is free to choose the chemotherapy for each participant (bendamustine, CHOP \[cyclophosphamide, doxorubicin, vincristine, prednisone/prednisolone/methylprednisolone\], or CVP \[cyclophosphamide, vincristine, and prednisone/prednisolone/methylprednisolone\]). The total number of cycles of G-chemo induction therapy and the cycles length depends on the chemotherapy chosen for each participant.

Interventions

DRUGCyclophosphamide

Cyclophosphamide 750 milligrams per square metre (mg/m\^2), administered intravenously (IV) on Day 1 of each 21-day cycle, for six cycles for CHOP treatment or eight cycles for CVP treatment.

DRUGDoxorubicin

Doxorubicin 50 mg/m\^2 IV, administered on Day 1 of each 21-day cycle, for six cycles.

DRUGObinutuzumab

Obinutuzumab 1000 mg IV infusion, administered on Day 1, 8 and 15 during Cycle 1, and on Day 1 of subsequent cycles, for 6-8 cycles. Each cycle is 21 or 28 days long depending on the chemotherapy regimen allocated. Maintenance obinutuzumab monotherapy in patients who achieve at least a partial response, after induction therapy will be administered a dose of 1000 mg once every 8 weeks for 2 years or until disease progression (whichever occurs first).

DRUGBendamustine

Bendamustine will be administered on Days 1 and 2 for Cycles 1-6 at a dose of 90 mg/m2/day, for six 28-day cycles.

DRUGPrednisone/Prednisolone/Methylprednisolone

Prednisone 100 mg (or equivalent prednisolone or methylprednisolone), administered orally on Days 1-5 of each 21-day cycle, for six cycles for CHOP treatment or eight cycles for CVP treatment.

DRUGVincristine

Vincristine 1.4 mg/m\^2 (maximum 2 mg) IV, administered on Day 1 of each 21-day cycle, for six cycles for CHOP treatment or eight cycles for CVP treatment.

Sponsors

Hoffmann-La Roche
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Patients with previously untreated Stage III or IV FL or Stage II bulky disease scheduled to receive obinutuzumab plus chemotherapy due to at least one of the following criteria: a.) Bulky disease, defined as a nodal or extranodal (except spleen) mass ≥ 7 cm in the greatest diameter b.) Local symptoms or compromise of normal organ function due to progressive nodal disease or extranodal tumor mass c.) Presence of B symptoms (fever \[\> 38ºC\], drenching night sweats, or unintentional weight loss of \> 10% of normal body weight over a period of 6 months or less) d.) Presence of symptomatic extranodal disease (e.g., pleural effusions, peritoneal ascites) e.) Cytopenias due to underlying lymphoma (i.e., absolute neutrophil count \< 1.0 × 109/L, hemoglobin \< 10 g/dL, and/or platelet count \< 100 × 109/L) f.) Involvement of ≥ 3 nodal sites, each with a diameter of ≥ 3 cm g.) Symptomatic splenic enlargement * Histologically documented CD-20-positive FL, as determined by the local laboratory * Eastern Cooperative Oncology Group (ECOG) performance status 0-2 * Adequate hematologic function (unless abnormalities are related to FL) * Life expectancy of ≥ 12 months * For women who are not postmenopausal (≥ 12 consecutive months of non-therapy-induced amenorrhea) or surgically sterile (absence of ovaries and/or uterus): agreement to remain abstinent (refrain from heterosexual intercourse) or use contraceptive methods that result in a failure rate of \< 1% per year during the treatment period and for at least 18 months after the last dose of obinutuzumab, for at least 3 months after the last dose of bendamustine or according to institutional guidelines for CHOP or CVP chemotherapy, whichever is longer * For men: agreement to remain abstinent (refrain from heterosexual intercourse) or use contraceptive measures and agreement to refrain from donating sperm

Exclusion criteria

* Relapsed / refractory FL * Prior treatment for FL with chemotherapy, radiotherapy, or immunotherapy * Grade IIIb FL * Histological evidence of transformation of FL into high-grade B-cell NHL * Treatment with systemic immunosuppressive medications, including, but not limited to, prednisone/prednisolone/methylprednisolone (at a dose equivalent to \>30 mg/day prednisone), azathioprine, methotrexate, thalidomide, and anti-tumor necrosis factor agents within 2 weeks prior to Day 1 of Cycle 1 * History of solid organ transplantation * History of anti-CD20 antibody therapy * History of severe allergic or anaphylactic reaction to humanized, chimeric, or murine monoclonal antibodies * Known sensitivity or allergy to murine products * Known hypersensitivity to biopharmaceuticals produced in Chinese hamster ovary cells or any of the study drugs * Active bacterial, viral, fungal, or other infection or any major episode of infection requiring treatment with IV antibiotics within 4 weeks of Day 1 of Cycle 1 * Positive test results for chronic HBV infection (defined as positive HBsAg serology) * Positive test results for hepatitis C (hepatitis C virus \[HCV\] antibody serology testing) * Known history of HIV positive status * History of progressive multifocal leukoencephalopathy (PML) * Vaccination with a live virus vaccine within 28 days prior to Day 1 of Cycle 1 or anticipation that such a live, attenuated vaccine will be required during the study * History of prior other malignancy with the exception of: a. Curatively treated carcinoma in situ of the cervix, good-prognosis ductal carcinoma in situ of the breast, basal- or squamous-cell skin cancer, Stage I melanoma, or low-grade, early-stage localized prostate cancer b. Any previously treated malignancy that has been in remission without treatment for ≥ 2 years prior to enrollment * Evidence of any significant, uncontrolled concomitant disease that could affect compliance with the protocol or interpretation of results, including significant cardiovascular disease (such as New York Heart Association Class III or IV cardiac disease, myocardial infarction within the previous 6 months, unstable arrhythmia, or unstable angina) or significant pulmonary disease (such as obstructive pulmonary disease or history of bronchospasm) * Major surgical procedure other than for diagnosis within 28 days prior to Day 1 of Cycle 1, Day 1, or anticipation of a major surgical procedure during the course of the study * Any of the following abnormal laboratory values: 1. Creatinine \> 1.5 × the upper limit of normal (ULN) (unless creatinine clearance normal) or creatinine clearance \< 40 mL/min 2. Aspartate aminotransferase (AST) or alanine aminotransferase (ALT) \> 2.5 × ULN 3. Total bilirubin ≥ 1.5 × the ULN: Patients with documented Gilbert disease may be enrolled if total bilirubin is ≤ 3.0 × the ULN. 4. International normalized ratio (INR) \> 1.5 in the absence of therapeutic anticoagulation 5. Partial thromboplastin time or activated partial thromboplastin time \> 1.5 × ULN in the absence of a lupus anticoagulant * For patients who will be receiving CHOP: left ventricular ejection fraction (LVEF) \< 50% by multigated acquisition (MUGA) scan or echocardiogram * Pregnant or lactating, or intending to become pregnant during the study * Any investigational therapy within 28 days prior to the start of Cycle 1 * Positive test results for human T-lymphotropic virus 1 (HTLV-1)

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Grade >=3 Infusion-Related Reactions (IRRs) During Cycle 2 in Patients Who Had Previously Received Obinutuzumab at the Standard Infusion Rate During Cycle 1 Without Experiencing a Grade 3 or 4 IRRWithin 24 hours from the end of study treatment infusion of Day 1 in Cycle 2 (1 cycle: 21 or 28 days depending on the chemotherapy selected)IRRs were defined as all adverse events (AEs) that occurred during or within 24 hours from the end of study treatment infusion and were judged as related to infusion of study treatment components by the investigator.

Secondary

MeasureTime frameDescription
Percentage of IRRs Regardless of Grade by CycleWithin 24 hours from the end of study treatment infusion in all cycles, including maintenance ((1 cycle: 21 or 28 days depending on the chemotherapy selected); up to approximately 2.5 years)IRRs were defined as all adverse events (AEs) that occurred during or within 24 hours from the end of study treatment infusion and were judged as related to infusion of study treatment components by the investigator.
Time to IRR From Infusion to Onset of the IRR During Cycle 2From infusion to onset of IRR during Cycle 2 (1 cycle: 21 or 28 days depending on the chemotherapy selected)Time to IRR (of any grade) in Cycle 2 was defined as the time from the start of infusion (i.e., start date/time of infusion of the first component of study treatment) in Cycle 2 to the onset of the IRR (of any grade) during Cycle 2.
Duration (In Minutes) of Obinutuzumab Administration by CycleAll cycles including maintenance (1 cycle: 21 or 28 days depending on the chemotherapy selected; up to approximately 2.5 years)The duration of obinutuzumab administration (in minutes) by cycle was defined as the difference between the end time and the start time of obinutuzumab administration.
Type of Grade >=3 IRRs Associated With the Obinutuzumab Administered as an SDI by CycleAll cycles including maintenance (1 cycle: 21 or 28 days depending on the chemotherapy selected; up to approximately 2.5 years)
Percentage of Participants With Adverse Events (AEs)Baseline up to end of study (approximately 4 years)An AE was defined as any untoward medical occurrence in a clinical investigation participant who was administered a pharmaceutical product, regardless of causal attribution. An AE was therefore any unfavourable 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. Pre-existing conditions which worsened during the study, recurrence of an intermittent medical condition, deterioration in a laboratory value or other clinical test or were related to a protocol-mandated intervention were also considered AEs. Grading was completed according to the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE) Version 5.0.
Objective Response Rate (ORR) at the End of Induction (EOI) TherapyBaseline up to end of induction therapy (up to approximately 6 months)ORR at EOI therapy was defined as the percentage of particpants with either a CR, CR unconfirmed or PR at the EOI visit, as determined by the investigator and according to the guidelines used at the site.
Progression-Free Survival (PFS) Rate at the End of the StudyBaseline up to end of study (up to approximately 4 years)PFS was defined as the time from start of treatment to the first occurrence of disease progression as assessed by the investigator according to the guidelines used at the site or death from any cause.
Overall Survival (OS) at the End of the StudyBaseline up to end of study (up to approximately 4 years)OS was defined as the time from start of treatment (date of first intake of any study treatment component) to death from any cause.
Complete Response (CR) Rate at 30 Months (CR30), as Assessed by the Investigator and According to the Guidelines Used at the SiteBaseline up to 30 monthsThe CR30 rate was defined as the percentage of participants with a CR at 30 months from study treatment initiation (date of first intake of any study treatment component), as determined by the investigator according to the guidelines used at the site.
Duration of Grade >=3 IRRs Associated With the Obinutuzumab Administered as an SDI by CycleAll cycles including maintenance (1 cycle: 21 or 28 days depending on the chemotherapy selected; up to approximately 2.5 years)The duration, in minutes, of IRRs during all cycles, where obinutuzumab was administered as an SDI.

Countries

Brazil, Germany, Japan, Netherlands, Spain, United Kingdom, United States

Participant flow

Recruitment details

Participants were enrolled at 35 sites across 7 countries.

Pre-assignment details

Of the all participants population (114 participants), one participant did not receive the study treatment, thus the safety-evaluable population included 113 participants.

Participants by arm

ArmCount
All Participants
Participants were enrolled in an induction phase and received 6-8 cycles of obinutuzumab, combined with 6 or 8 cycles of standard chemotherapy (cyclophosphamide, doxorubicin, vincristine, and prednisone/prednisolone/methylprednisolone \[CHOP - 21-day cycle) or bendamustine (28-day cycle), or cyclophosphamide, vincristine, and prednisone/prednisolone/methylprednisolone \[CVP - 21-day cycle\]). Participants received an additional two doses of obinutuzumab on Days 8 and 15 of Cycle 1. The investigator was free to choose the chemotherapy for each participant.
113
Total113

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Follow-up PhaseAdverse Event002
Follow-up PhaseDeath001
Follow-up PhaseProgressive Disease003
Follow-up PhaseWithdrawal by Subject001
Induction PhaseAdverse Event500
Induction PhaseMeasures due to covid19; transformation to double hit high-grade b lymphoma; discontinuation of trt.300
Induction PhasePhysician Decision200
Induction PhaseProgressive Disease600
Induction PhaseWithdrawal by Subject400
Maintenance PhaseAdverse Event080
Maintenance PhaseDeath050
Maintenance PhasePhysician Decision010
Maintenance PhaseProgressive Disease070
Maintenance PhaseProtocol Deviation010
Maintenance PhaseVarious reasons040
Maintenance PhaseWithdrawal by Subject020

Baseline characteristics

CharacteristicAll Participants
Age, Continuous58.9 Years
STANDARD_DEVIATION 12.7
Race/Ethnicity, Customized
Asian
27 Participants
Race/Ethnicity, Customized
Hispanic or Latino
33 Participants
Race/Ethnicity, Customized
Multiple
2 Participants
Race/Ethnicity, Customized
Not Hispanic or Latino
80 Participants
Race/Ethnicity, Customized
Other
2 Participants
Race/Ethnicity, Customized
White
82 Participants
Sex: Female, Male
Female
56 Participants
Sex: Female, Male
Male
57 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
9 / 1138 / 954 / 99
other
Total, other adverse events
111 / 11376 / 9513 / 99
serious
Total, serious adverse events
21 / 11317 / 9511 / 99

Outcome results

Primary

Percentage of Grade >=3 Infusion-Related Reactions (IRRs) During Cycle 2 in Patients Who Had Previously Received Obinutuzumab at the Standard Infusion Rate During Cycle 1 Without Experiencing a Grade 3 or 4 IRR

IRRs were defined as all adverse events (AEs) that occurred during or within 24 hours from the end of study treatment infusion and were judged as related to infusion of study treatment components by the investigator.

Time frame: Within 24 hours from the end of study treatment infusion of Day 1 in Cycle 2 (1 cycle: 21 or 28 days depending on the chemotherapy selected)

Population: The Short Duration Infusion (SDI) population included all enrolled particpants who did not experience a Grade 3 or 4 IRR during cycle 1 (i.e. at any of the three Cycle 1 infusions), received obinutuzumab given at the standard rate only during Cycle 1, and received obinutuzumab as an SDI at cycle 2.

ArmMeasureValue (NUMBER)
All ParticipantsPercentage of Grade >=3 Infusion-Related Reactions (IRRs) During Cycle 2 in Patients Who Had Previously Received Obinutuzumab at the Standard Infusion Rate During Cycle 1 Without Experiencing a Grade 3 or 4 IRR0 Percentage of Participants
Secondary

Complete Response (CR) Rate at 30 Months (CR30), as Assessed by the Investigator and According to the Guidelines Used at the Site

The CR30 rate was defined as the percentage of participants with a CR at 30 months from study treatment initiation (date of first intake of any study treatment component), as determined by the investigator according to the guidelines used at the site.

Time frame: Baseline up to 30 months

Population: The safety population included all participants who received at least one dose of obinutuzumab.

ArmMeasureValue (NUMBER)
All ParticipantsComplete Response (CR) Rate at 30 Months (CR30), as Assessed by the Investigator and According to the Guidelines Used at the Site55.6 Percentage of Participants
Secondary

Duration (In Minutes) of Obinutuzumab Administration by Cycle

The duration of obinutuzumab administration (in minutes) by cycle was defined as the difference between the end time and the start time of obinutuzumab administration.

Time frame: All cycles including maintenance (1 cycle: 21 or 28 days depending on the chemotherapy selected; up to approximately 2.5 years)

Population: The safety population included all participants who received at least one dose of obinutuzumab.

ArmMeasureGroupValue (MEAN)Dispersion
All ParticipantsDuration (In Minutes) of Obinutuzumab Administration by CycleCycle(C) 1 Day(D) 1295.96 MinutesStandard Deviation 147.87
All ParticipantsDuration (In Minutes) of Obinutuzumab Administration by CycleC1D8215.97 MinutesStandard Deviation 46.99
All ParticipantsDuration (In Minutes) of Obinutuzumab Administration by CycleC1D15208.91 MinutesStandard Deviation 33.13
All ParticipantsDuration (In Minutes) of Obinutuzumab Administration by CycleC299.61 MinutesStandard Deviation 13.36
All ParticipantsDuration (In Minutes) of Obinutuzumab Administration by CycleC3103.29 MinutesStandard Deviation 65.45
All ParticipantsDuration (In Minutes) of Obinutuzumab Administration by CycleC499.26 MinutesStandard Deviation 13.9
All ParticipantsDuration (In Minutes) of Obinutuzumab Administration by CycleC598.46 MinutesStandard Deviation 16.48
All ParticipantsDuration (In Minutes) of Obinutuzumab Administration by CycleC699.10 MinutesStandard Deviation 12.18
All ParticipantsDuration (In Minutes) of Obinutuzumab Administration by CycleC798.84 MinutesStandard Deviation 13.61
All ParticipantsDuration (In Minutes) of Obinutuzumab Administration by CycleC895.68 MinutesStandard Deviation 4.12
All ParticipantsDuration (In Minutes) of Obinutuzumab Administration by CycleMaintenance Week 197.64 MinutesStandard Deviation 10.08
All ParticipantsDuration (In Minutes) of Obinutuzumab Administration by CycleMaintenance Week 996.78 MinutesStandard Deviation 8.49
All ParticipantsDuration (In Minutes) of Obinutuzumab Administration by CycleMaintenance Week 1797.77 MinutesStandard Deviation 7.66
All ParticipantsDuration (In Minutes) of Obinutuzumab Administration by CycleMaintenance Week 2597.16 MinutesStandard Deviation 7.23
All ParticipantsDuration (In Minutes) of Obinutuzumab Administration by CycleMaintenance Week 3395.08 MinutesStandard Deviation 4.27
All ParticipantsDuration (In Minutes) of Obinutuzumab Administration by CycleMaintenance Week 4195.77 MinutesStandard Deviation 5.26
All ParticipantsDuration (In Minutes) of Obinutuzumab Administration by CycleMaintenance Week 4993.56 MinutesStandard Deviation 4.48
All ParticipantsDuration (In Minutes) of Obinutuzumab Administration by CycleMaintenance Week 5793.50 MinutesStandard Deviation 4.95
Secondary

Duration of Grade >=3 IRRs Associated With the Obinutuzumab Administered as an SDI by Cycle

The duration, in minutes, of IRRs during all cycles, where obinutuzumab was administered as an SDI.

Time frame: All cycles including maintenance (1 cycle: 21 or 28 days depending on the chemotherapy selected; up to approximately 2.5 years)

Population: The safety population (113 participants) included all participants who received at least one dose of obinutuzumab.

ArmMeasureValue (MEAN)
All ParticipantsDuration of Grade >=3 IRRs Associated With the Obinutuzumab Administered as an SDI by Cycle165.0 Minutes
Secondary

Objective Response Rate (ORR) at the End of Induction (EOI) Therapy

ORR at EOI therapy was defined as the percentage of particpants with either a CR, CR unconfirmed or PR at the EOI visit, as determined by the investigator and according to the guidelines used at the site.

Time frame: Baseline up to end of induction therapy (up to approximately 6 months)

Population: The safety population included all participants who received at least one dose of obinutuzumab.

ArmMeasureGroupValue (NUMBER)
All ParticipantsObjective Response Rate (ORR) at the End of Induction (EOI) TherapyComplete Response68.1 Percentage of Participants
All ParticipantsObjective Response Rate (ORR) at the End of Induction (EOI) TherapyPartial Response19.5 Percentage of Participants
Secondary

Overall Survival (OS) at the End of the Study

OS was defined as the time from start of treatment (date of first intake of any study treatment component) to death from any cause.

Time frame: Baseline up to end of study (up to approximately 4 years)

Population: The safety population included all participants who received at least one dose of obinutuzumab.

ArmMeasureValue (MEDIAN)
All ParticipantsOverall Survival (OS) at the End of the StudyNA Months
Secondary

Percentage of IRRs Regardless of Grade by Cycle

IRRs were defined as all adverse events (AEs) that occurred during or within 24 hours from the end of study treatment infusion and were judged as related to infusion of study treatment components by the investigator.

Time frame: Within 24 hours from the end of study treatment infusion in all cycles, including maintenance ((1 cycle: 21 or 28 days depending on the chemotherapy selected); up to approximately 2.5 years)

Population: The safety population included all participants who received at least one dose of obinutuzumab.

ArmMeasureGroupValue (NUMBER)
All ParticipantsPercentage of IRRs Regardless of Grade by CycleCycle 1 Day 150.4 Percentage of Participants
All ParticipantsPercentage of IRRs Regardless of Grade by CycleCycle 1 Day 27.8 Percentage of Participants
All ParticipantsPercentage of IRRs Regardless of Grade by CycleCycle 1 Day 85.4 Percentage of Participants
All ParticipantsPercentage of IRRs Regardless of Grade by CycleCycle 1 Day 154.5 Percentage of Participants
All ParticipantsPercentage of IRRs Regardless of Grade by CycleCycle 211.8 Percentage of Participants
All ParticipantsPercentage of IRRs Regardless of Grade by CycleCycle 38.3 Percentage of Participants
All ParticipantsPercentage of IRRs Regardless of Grade by CycleCycle 46.5 Percentage of Participants
All ParticipantsPercentage of IRRs Regardless of Grade by CycleCycle 55.6 Percentage of Participants
All ParticipantsPercentage of IRRs Regardless of Grade by CycleCycle 64.8 Percentage of Participants
All ParticipantsPercentage of IRRs Regardless of Grade by CycleCycle 73.6 Percentage of Participants
Secondary

Percentage of Participants With Adverse Events (AEs)

An AE was defined as any untoward medical occurrence in a clinical investigation participant who was administered a pharmaceutical product, regardless of causal attribution. An AE was therefore any unfavourable 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. Pre-existing conditions which worsened during the study, recurrence of an intermittent medical condition, deterioration in a laboratory value or other clinical test or were related to a protocol-mandated intervention were also considered AEs. Grading was completed according to the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE) Version 5.0.

Time frame: Baseline up to end of study (approximately 4 years)

Population: The safety population included all participants who received at least one dose of obinutuzumab.

ArmMeasureValue (NUMBER)
All ParticipantsPercentage of Participants With Adverse Events (AEs)99.1 Percentage of Participants
Maintenance: ObinutuzumabPercentage of Participants With Adverse Events (AEs)90.5 Percentage of Participants
Follow-upPercentage of Participants With Adverse Events (AEs)27.3 Percentage of Participants
Secondary

Progression-Free Survival (PFS) Rate at the End of the Study

PFS was defined as the time from start of treatment to the first occurrence of disease progression as assessed by the investigator according to the guidelines used at the site or death from any cause.

Time frame: Baseline up to end of study (up to approximately 4 years)

Population: The safety population included all participants who received at least one dose of obinutuzumab.

ArmMeasureValue (MEDIAN)
All ParticipantsProgression-Free Survival (PFS) Rate at the End of the Study33.97 Months
Secondary

Time to IRR From Infusion to Onset of the IRR During Cycle 2

Time to IRR (of any grade) in Cycle 2 was defined as the time from the start of infusion (i.e., start date/time of infusion of the first component of study treatment) in Cycle 2 to the onset of the IRR (of any grade) during Cycle 2.

Time frame: From infusion to onset of IRR during Cycle 2 (1 cycle: 21 or 28 days depending on the chemotherapy selected)

Population: The SDI population included all enrolled participants who did not experience a Grade 3 or 4 IRR during cycle 1 (i.e. at any of the three Cycle 1 infusions), received obinutuzumab given at the standard rate only during Cycle 1, and received obinutuzumab as an SDI at cycle 2. For this outcome measure, only one participant was analyzed.

ArmMeasureValue (MEAN)
All ParticipantsTime to IRR From Infusion to Onset of the IRR During Cycle 211.800 Hours
Secondary

Type of Grade >=3 IRRs Associated With the Obinutuzumab Administered as an SDI by Cycle

Time frame: All cycles including maintenance (1 cycle: 21 or 28 days depending on the chemotherapy selected; up to approximately 2.5 years)

Population: The safety population included all participants who received at least one dose of obinutuzumab. Only 1 participant had a Grade \>=3 IRR, with 3 symptoms in Cycle 5. Weight increased was a grade 1 symptom belonging to the grade 3 IRRs.

ArmMeasureGroupValue (NUMBER)
All ParticipantsType of Grade >=3 IRRs Associated With the Obinutuzumab Administered as an SDI by CycleCycle (C) 5- Hypertension33.3 Percentage of Participants
All ParticipantsType of Grade >=3 IRRs Associated With the Obinutuzumab Administered as an SDI by CycleC5 - Renal failure33.3 Percentage of Participants
All ParticipantsType of Grade >=3 IRRs Associated With the Obinutuzumab Administered as an SDI by CycleC5 - Weight increased33.3 Percentage of Participants

Source: ClinicalTrials.gov · Data processed: Feb 21, 2026