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A Study of Bevacizumab (Avastin®) in Combination With Temozolomide and Radiotherapy in Participants With Newly Diagnosed Glioblastoma

A Randomized, Double-Blind, Placebo-Controlled, Multicenter Phase III Trial of Bevacizumab, Temozolomide and Radiotherapy, Followed by Bevacizumab and Temozolomide Versus Placebo, Temozolomide and Radiotherapy Followed by Placebo and Temozolomide in Patients With Newly Diagnosed Glioblastoma

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00943826
Enrollment
921
Registered
2009-07-22
Start date
2009-06-29
Completion date
2015-09-09
Last updated
2017-09-25

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

Conditions

Glioblastoma

Brief summary

This 2 arm study investigated the efficacy and safety of the addition of bevacizumab to the current standard of care (multimodality therapy of concurrent radiotherapy plus temozolomide followed by adjuvant temozolomide) as compared to the current standard of care alone. Participants were randomly assigned to either the bevacizumab (10 milligrams per kilogram (mg/kg) intravenously \[IV\] once every 2 week \[q2w\]) or the placebo arm, in combination with radiation therapy (total dose 60 Gray \[Gy\], administered as 2 Gy fractions, 5 days/week) plus temozolomide (75 milligrams per meter squared \[mg/m\^2\] oral administration \[po\] daily) for 6 weeks. After a 4 week treatment break, participants continued to receive bevacizumab (10 mg/kg IV q2w) or placebo, plus temozolomide (150-200 mg/m\^2 po daily on days 1-5 of each 4 week cycle) for 6 cycles of maintenance treatment or until disease progression or unacceptable toxicity, whichever occured first. Following the maintenance phase, bevacizumab (15 mg/kg iv every 3 weeks \[q3w\]) or placebo monotherapy continued. The time on study treatment was until disease progression.

Interventions

DRUGBevacizumab

10 mg/kg intravenously q2w in the Concurrent and Maintenance Phases. 15 mg/kg intravenously q3w in the Monotherapy Phase.

DRUGTemozolomide

75 mg/m\^2 once daily for 6 weeks, followed by 150-200 mg/m\^2 once daily on days 1-5 of six 4 week cycles.

RADIATIONRadiation therapy

30 fractions of 2 Gy delivered on days 1-5 per week for 6 weeks.

DRUGPlacebo

Intravenously q2w in the Concurrent and Maintenance Phases and q3w in the Monotherapy Phase.

Sponsors

Hoffmann-La Roche
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

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

Inclusion criteria

Key Inclusion Criteria: * newly diagnosed glioblastoma * World Health Organization (WHO) performance status less than or equal to (\<=2) * stable or decreasing corticosteroid dose within 5 days prior to randomization Key

Exclusion criteria

* evidence of recent hemorrhage on postoperative magnetic resonance imaging (MRI) of brain * any prior chemotherapy or immunotherapy for glioblastomas and low grade astrocytomas * any prior radiotherapy to brain * clinically significant cardiovascular disease * history of greater than or equal to (\>=) grade 2 hemoptysis within 1 month prior to randomization * previous centralized screening for Methylguanine-DNA methyltransferase (MGMT) status for enrollment into a clinical trial

Design outcomes

Primary

MeasureTime frameDescription
Co-Primary: Progression-free Survival (PFS) as Assessed by InvestigatorRandomization until PFS Event [Until data cutoff= 31 March 2012 (up to 31.4 months)PFS is defined as time from randomization to disease progression (PD) or death. PD was assessed using adapted Macdonald response criteria (modified World Health Organization \[WHO\] criteria) based on 3 components: radiological tumor assessments using Magnetic Resonance Imaging \[MRI\] scans,neurological assessment and changes in corticosteroid use. PD is assessed as greater than or equal to(\>=) 25% increase in sum of products of the longest diameters of all index lesions (enhancing,measurable) compared with the smallest recorded sum (nadir); or unequivocal PD of existing non-index lesions (non-enhancing and enhancing,non-measurable); or unequivocal appearance of new lesions); or neurological worsening (if corticosteroid dose is stable or increased) compared to neurological evaluation at previous disease assessment with no need for a confirmatory scan. Participants without a PFS event were censored at last disease assessment.
Co-Primary: Overall Survival (OS)Randomization until OS Event (Until data cutoff= 28 February 2013 [up to 42.2 months])Overall Survival was defined as the time from randomization to death due to any cause.

Secondary

MeasureTime frameDescription
Kaplan-Meier (KM) Estimate of Two Year Overall SurvivalRandomization until Overall Survival Event (Until data cutoff= 28 February 2013 [up to 42.2 months])KM estimate of two year overall survival was reported (probability to survive for at least 2 years). Corresponding 95% CI was calculated using Greenwood's formula.
PFS as Assessed by an Independent Review FacilityRandomization until PFS Event (Until data cutoff= 31 March 2012 [up to 29.5 months])An Independent Review Facility reviewed the MRI scans used by investigator to evaluate radiological tumor response. PFS is defined as time from randomization to PD or death. PD was assessed using adapted Macdonald response (modified WHO) criteria based on 3 components: radiological tumor assessments using MRI scans, neurological assessment and changes in corticosteroid use. PD is assessed as \>=25% increase in sum of products of the longest diameters of all index lesions (enhancing, measurable) compared with the smallest recorded sum (nadir); or unequivocal PD of existing non-index lesions (non-enhancing and enhancing, non-measurable); or unequivocal appearance of new lesions); or neurological worsening (if corticosteroid dose is stable or increased) compared to neurological evaluation at previous disease assessment with no need for a confirmatory scan. Participants without a PFS event were censored at last disease assessment.
Number of Participants With Non-Serious Adverse Events, Serious Adverse Events and DeathRandomization until study completion (Until data cutoff= 09 Sep 2015 [up to 64 months])An adverse event (AE) was considered any unfavorable and unintended sign, symptom, or disease associated with the use of the study drug, whether or not considered related to the study drug. Preexisting conditions that worsened during the study were reported as AE.A serious adverse event (SAE) is any experience that suggests a significant hazard,contraindication, side effect or precaution that: results in death, is life-threatening, required in-patient hospitalization or prolongation of existing hospitalization, results in persistent or significant disability/incapacity, is a congenital anomaly/birth defect or is medically significant. Non-serious adverse events (Non-SAEs) included all AEs except SAEs (non-SAEs = all AEs - SAEs). Nine participants randomized to the Placebo+RT+Temozolomide arm incorrectly received at least 1 dose of bevacizumab and were added to the Bevacizumab+RT+Temozolomide arm for Safety.
PFS in Participants With Stable/Improved Health Related Quality of Life (HRQoL) Based on European Organization for Research & Treatment of Cancer (EORTC) Quality of Life Questionnaire (QLQ) Core 30 (C30)(EORTC QLQ-C30) & EORTC QLQ Brain Neoplasm 20 (BN20)Randomization until PFS Event [Until data cutoff= 31 March 2012 (up to 31.4 months)EORTC QLQ-C30: 30 items; 5 functional scales; 9 symptom scales; & global health status. Most questions used 4-point scale (1:Not at all, 4:Very much), 2 questions used 7-point scale (1:very poor, 7:Excellent). EORTC QLQ-BN20: 20 items rated on a 4 point scale (1:not at all, 4:very much). EORTC QLQ-C30 and BN20 scores were transformed to a 0-100 scale, higher score=better functioning/global health (C30) or more severe symptoms (BN20). Stable HRQoL: change from baseline (BL) within 10 points. Improved HRQoL: an increase from BL \>/=10 points for functioning/global health status, & decrease of \>/=10 points for symptoms. PFS is reported for participants with Stable/Improved global health; physical, social functioning (C30); motor dysfunction & communication deficit (BN20). PFS: randomization to PD or death. PD: \>=25% increase in sum of products of longest diameters of index lesions; or progression of existing non-index lesions; or appearance of new lesions; or neurological worsening.
Kaplan-Meier (KM) Estimate of One Year Overall SurvivalRandomization until Overall Survival Event (Until data cutoff= 28 February 2013 [up to 42.2 months])KM estimate of one year overall survival (probability to survive for at least 1 year) was reported. Corresponding 95% confidence interval (CI) was calculated using Greenwood's formula.

Countries

Australia, Belgium, Canada, Denmark, France, Germany, Greece, Hong Kong, Hungary, Israel, Italy, Japan, Netherlands, New Zealand, Poland, Portugal, Romania, Russia, South Korea, Spain, Sweden, Switzerland, United Kingdom, United States

Participant flow

Pre-assignment details

The primary completion date for co-primary outcome of Progression-Free Survival (PFS) was 31 Mar 2012, whereas, the primary completion date for co-primary outcome of Overall Survival (OS) was 28 Feb 2013. Data for PFS and OS are reported according to these cut-off dates.

Participants by arm

ArmCount
Bevacizumab + RT + Temozolomide
In the Concurrent Phase participants received radiotherapy (RT) in daily fractions of 2 Gray (Gy) given 5 days per weeks for 6 weeks (for a total of 60 Gy) and temozolomide 75 milligrams per square meter (mg/m\^2) daily from the first day to the last day of radiotherapy (for a maximum of 49 days in case of delay to the end of radiation therapy) and bevacizumab (Avastin) 10 milligrams per kilogram (mg/kg) intravenous (IV) every 2 weeks for 6 weeks. There was a 4 week treatment break. Participants then entered the Maintenance Phase where they received six 28-day cycle of bevacizumab 10 mg/kg IV every 2 weeks and temozolomide 150 to 200 mg/m\^2 daily in the first 5 days of each cycle. The participants then entered the Monotherapy Phase where they received bevacizumab 15 mg/kg IV every 3 weeks until disease progression/unacceptable toxicity. Participants then entered the last period: After Primary Overall Survival Analysis, in which participants were followed up for safety.
458
Placebo + RT +Temozolomide
In the Concurrent Phase participants received RT in daily fractions of 2 Gy given 5 days per weeks for 6 weeks (for a total of 60 Gy) and temozolomide 75 mg/m\^2 daily from the first day to the last day of radiotherapy (for a maximum of 49 days in case of delay to the end of radiation therapy) and placebo IV every 2 weeks for 6 weeks. There was a 4 week treatment break. Participants then entered the Maintenance Phase where they received six 28-day cycle of placebo IV every 2 weeks and temozolomide 150 to 200 mg/m\^2 daily in the first 5 days of each cycle. The participants then entered the Monotherapy Phase where they received placebo IV every 3 weeks until disease progression/unacceptable toxicity. Participants then entered the last period: After Primary Overall Survival Analysis, in which participants were followed up for safety.
463
Total921

Withdrawals & dropouts

PeriodReasonFG000FG001
After Primary Overall Survival AnalysisAdministrative reasons1016
After Primary Overall Survival AnalysisAdverse Event110
After Primary Overall Survival AnalysisProgression of Disease24
After Primary Overall Survival AnalysisWithdrew Consent40
Concurrent PhaseAdministrative reasons21
Concurrent PhaseAdverse Event5027
Concurrent PhaseProtocol Violation10
Concurrent PhaseRefused treatment/Did not cooperate57
Concurrent PhaseWithdrew consent37
Maintenance PhaseAdministrative reasons41
Maintenance PhaseAdverse Event3130
Maintenance PhaseFailure to return01
Maintenance PhaseRefused treatment/Did not cooperate63
Maintenance PhaseWithdrew consent24
Monotherapy PhaseAdministrative reasons115
Monotherapy PhaseAdverse Event425
Monotherapy PhaseFailure to return21
Monotherapy PhaseRefused treatment/ Did not cooperate82
Monotherapy PhaseWithdrew Consent23

Baseline characteristics

CharacteristicBevacizumab + RT + TemozolomidePlacebo + RT +TemozolomideTotal
Age, Continuous55.9 years55.9 years55.9 years
Sex: Female, Male
Female
176 Participants165 Participants341 Participants
Sex: Female, Male
Male
282 Participants298 Participants580 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
437 / 461412 / 450
serious
Total, serious adverse events
179 / 461115 / 450

Outcome results

Primary

Co-Primary: Overall Survival (OS)

Overall Survival was defined as the time from randomization to death due to any cause.

Time frame: Randomization until OS Event (Until data cutoff= 28 February 2013 [up to 42.2 months])

Population: Intent to treat population.

ArmMeasureValue (MEDIAN)
Bevacizumab + RT + TemozolomideCo-Primary: Overall Survival (OS)16.8 Months
Placebo + RT + TemozolomideCo-Primary: Overall Survival (OS)16.7 Months
p-value: 0.098795% CI: [0.76, 1.02]Log Rank
Primary

Co-Primary: Progression-free Survival (PFS) as Assessed by Investigator

PFS is defined as time from randomization to disease progression (PD) or death. PD was assessed using adapted Macdonald response criteria (modified World Health Organization \[WHO\] criteria) based on 3 components: radiological tumor assessments using Magnetic Resonance Imaging \[MRI\] scans,neurological assessment and changes in corticosteroid use. PD is assessed as greater than or equal to(\>=) 25% increase in sum of products of the longest diameters of all index lesions (enhancing,measurable) compared with the smallest recorded sum (nadir); or unequivocal PD of existing non-index lesions (non-enhancing and enhancing,non-measurable); or unequivocal appearance of new lesions); or neurological worsening (if corticosteroid dose is stable or increased) compared to neurological evaluation at previous disease assessment with no need for a confirmatory scan. Participants without a PFS event were censored at last disease assessment.

Time frame: Randomization until PFS Event [Until data cutoff= 31 March 2012 (up to 31.4 months)

Population: Intent to treat population.

ArmMeasureValue (MEDIAN)
Bevacizumab + RT + TemozolomideCo-Primary: Progression-free Survival (PFS) as Assessed by Investigator10.6 Months
Placebo + RT + TemozolomideCo-Primary: Progression-free Survival (PFS) as Assessed by Investigator6.2 Months
p-value: <0.000195% CI: [0.55, 0.74]Log Rank
Secondary

Kaplan-Meier (KM) Estimate of One Year Overall Survival

KM estimate of one year overall survival (probability to survive for at least 1 year) was reported. Corresponding 95% confidence interval (CI) was calculated using Greenwood's formula.

Time frame: Randomization until Overall Survival Event (Until data cutoff= 28 February 2013 [up to 42.2 months])

Population: Intent to treat population.

ArmMeasureValue (NUMBER)
Bevacizumab + RT + TemozolomideKaplan-Meier (KM) Estimate of One Year Overall Survival0.72 probability of being alive
Placebo + RT + TemozolomideKaplan-Meier (KM) Estimate of One Year Overall Survival0.66 probability of being alive
Secondary

Kaplan-Meier (KM) Estimate of Two Year Overall Survival

KM estimate of two year overall survival was reported (probability to survive for at least 2 years). Corresponding 95% CI was calculated using Greenwood's formula.

Time frame: Randomization until Overall Survival Event (Until data cutoff= 28 February 2013 [up to 42.2 months])

Population: Intent to treat population.

ArmMeasureValue (NUMBER)
Bevacizumab + RT + TemozolomideKaplan-Meier (KM) Estimate of Two Year Overall Survival0.34 probability of being alive
Placebo + RT + TemozolomideKaplan-Meier (KM) Estimate of Two Year Overall Survival0.30 probability of being alive
Secondary

Number of Participants With Non-Serious Adverse Events, Serious Adverse Events and Death

An adverse event (AE) was considered any unfavorable and unintended sign, symptom, or disease associated with the use of the study drug, whether or not considered related to the study drug. Preexisting conditions that worsened during the study were reported as AE.A serious adverse event (SAE) is any experience that suggests a significant hazard,contraindication, side effect or precaution that: results in death, is life-threatening, required in-patient hospitalization or prolongation of existing hospitalization, results in persistent or significant disability/incapacity, is a congenital anomaly/birth defect or is medically significant. Non-serious adverse events (Non-SAEs) included all AEs except SAEs (non-SAEs = all AEs - SAEs). Nine participants randomized to the Placebo+RT+Temozolomide arm incorrectly received at least 1 dose of bevacizumab and were added to the Bevacizumab+RT+Temozolomide arm for Safety.

Time frame: Randomization until study completion (Until data cutoff= 09 Sep 2015 [up to 64 months])

Population: Safety Population included all randomized participants who received study treatment during the treatment period (10 participants did not receive at least one dose of study treatment and were therefore excluded, 4 in Placebo and 6 in Bevacizumab.

ArmMeasureGroupValue (NUMBER)
Bevacizumab + RT + TemozolomideNumber of Participants With Non-Serious Adverse Events, Serious Adverse Events and DeathNon-SAEs437 Participants
Bevacizumab + RT + TemozolomideNumber of Participants With Non-Serious Adverse Events, Serious Adverse Events and DeathSAEs179 Participants
Bevacizumab + RT + TemozolomideNumber of Participants With Non-Serious Adverse Events, Serious Adverse Events and DeathDeath335 Participants
Placebo + RT + TemozolomideNumber of Participants With Non-Serious Adverse Events, Serious Adverse Events and DeathNon-SAEs412 Participants
Placebo + RT + TemozolomideNumber of Participants With Non-Serious Adverse Events, Serious Adverse Events and DeathSAEs115 Participants
Placebo + RT + TemozolomideNumber of Participants With Non-Serious Adverse Events, Serious Adverse Events and DeathDeath337 Participants
Secondary

PFS as Assessed by an Independent Review Facility

An Independent Review Facility reviewed the MRI scans used by investigator to evaluate radiological tumor response. PFS is defined as time from randomization to PD or death. PD was assessed using adapted Macdonald response (modified WHO) criteria based on 3 components: radiological tumor assessments using MRI scans, neurological assessment and changes in corticosteroid use. PD is assessed as \>=25% increase in sum of products of the longest diameters of all index lesions (enhancing, measurable) compared with the smallest recorded sum (nadir); or unequivocal PD of existing non-index lesions (non-enhancing and enhancing, non-measurable); or unequivocal appearance of new lesions); or neurological worsening (if corticosteroid dose is stable or increased) compared to neurological evaluation at previous disease assessment with no need for a confirmatory scan. Participants without a PFS event were censored at last disease assessment.

Time frame: Randomization until PFS Event (Until data cutoff= 31 March 2012 [up to 29.5 months])

Population: Intent to treat population.

ArmMeasureValue (MEDIAN)
Bevacizumab + RT + TemozolomidePFS as Assessed by an Independent Review Facility8.4 Months
Placebo + RT + TemozolomidePFS as Assessed by an Independent Review Facility4.3 Months
p-value: <0.000195% CI: [0.53, 0.71]Log Rank
Secondary

PFS in Participants With Stable/Improved Health Related Quality of Life (HRQoL) Based on European Organization for Research & Treatment of Cancer (EORTC) Quality of Life Questionnaire (QLQ) Core 30 (C30)(EORTC QLQ-C30) & EORTC QLQ Brain Neoplasm 20 (BN20)

EORTC QLQ-C30: 30 items; 5 functional scales; 9 symptom scales; & global health status. Most questions used 4-point scale (1:Not at all, 4:Very much), 2 questions used 7-point scale (1:very poor, 7:Excellent). EORTC QLQ-BN20: 20 items rated on a 4 point scale (1:not at all, 4:very much). EORTC QLQ-C30 and BN20 scores were transformed to a 0-100 scale, higher score=better functioning/global health (C30) or more severe symptoms (BN20). Stable HRQoL: change from baseline (BL) within 10 points. Improved HRQoL: an increase from BL \>/=10 points for functioning/global health status, & decrease of \>/=10 points for symptoms. PFS is reported for participants with Stable/Improved global health; physical, social functioning (C30); motor dysfunction & communication deficit (BN20). PFS: randomization to PD or death. PD: \>=25% increase in sum of products of longest diameters of index lesions; or progression of existing non-index lesions; or appearance of new lesions; or neurological worsening.

Time frame: Randomization until PFS Event [Until data cutoff= 31 March 2012 (up to 31.4 months)

Population: Intent to treat population. Number of Participants Analyzed = overall participants evaluable for this outcome measure; n = participants evaluable for specified category.

ArmMeasureGroupValue (MEDIAN)
Bevacizumab + RT + TemozolomidePFS in Participants With Stable/Improved Health Related Quality of Life (HRQoL) Based on European Organization for Research & Treatment of Cancer (EORTC) Quality of Life Questionnaire (QLQ) Core 30 (C30)(EORTC QLQ-C30) & EORTC QLQ Brain Neoplasm 20 (BN20)Physical functioning (n=353, 318)7 Months
Bevacizumab + RT + TemozolomidePFS in Participants With Stable/Improved Health Related Quality of Life (HRQoL) Based on European Organization for Research & Treatment of Cancer (EORTC) Quality of Life Questionnaire (QLQ) Core 30 (C30)(EORTC QLQ-C30) & EORTC QLQ Brain Neoplasm 20 (BN20)Motor dysfunction (n=361, 314)7 Months
Bevacizumab + RT + TemozolomidePFS in Participants With Stable/Improved Health Related Quality of Life (HRQoL) Based on European Organization for Research & Treatment of Cancer (EORTC) Quality of Life Questionnaire (QLQ) Core 30 (C30)(EORTC QLQ-C30) & EORTC QLQ Brain Neoplasm 20 (BN20)Social functioning (n=352, 327)8 Months
Bevacizumab + RT + TemozolomidePFS in Participants With Stable/Improved Health Related Quality of Life (HRQoL) Based on European Organization for Research & Treatment of Cancer (EORTC) Quality of Life Questionnaire (QLQ) Core 30 (C30)(EORTC QLQ-C30) & EORTC QLQ Brain Neoplasm 20 (BN20)Communication deficit (n=365, 329)8 Months
Bevacizumab + RT + TemozolomidePFS in Participants With Stable/Improved Health Related Quality of Life (HRQoL) Based on European Organization for Research & Treatment of Cancer (EORTC) Quality of Life Questionnaire (QLQ) Core 30 (C30)(EORTC QLQ-C30) & EORTC QLQ Brain Neoplasm 20 (BN20)Global health status (n=354, 309)8 Months
Placebo + RT + TemozolomidePFS in Participants With Stable/Improved Health Related Quality of Life (HRQoL) Based on European Organization for Research & Treatment of Cancer (EORTC) Quality of Life Questionnaire (QLQ) Core 30 (C30)(EORTC QLQ-C30) & EORTC QLQ Brain Neoplasm 20 (BN20)Communication deficit (n=365, 329)4 Months
Placebo + RT + TemozolomidePFS in Participants With Stable/Improved Health Related Quality of Life (HRQoL) Based on European Organization for Research & Treatment of Cancer (EORTC) Quality of Life Questionnaire (QLQ) Core 30 (C30)(EORTC QLQ-C30) & EORTC QLQ Brain Neoplasm 20 (BN20)Global health status (n=354, 309)4 Months
Placebo + RT + TemozolomidePFS in Participants With Stable/Improved Health Related Quality of Life (HRQoL) Based on European Organization for Research & Treatment of Cancer (EORTC) Quality of Life Questionnaire (QLQ) Core 30 (C30)(EORTC QLQ-C30) & EORTC QLQ Brain Neoplasm 20 (BN20)Physical functioning (n=353, 318)5 Months
Placebo + RT + TemozolomidePFS in Participants With Stable/Improved Health Related Quality of Life (HRQoL) Based on European Organization for Research & Treatment of Cancer (EORTC) Quality of Life Questionnaire (QLQ) Core 30 (C30)(EORTC QLQ-C30) & EORTC QLQ Brain Neoplasm 20 (BN20)Social functioning (n=352, 327)4 Months
Placebo + RT + TemozolomidePFS in Participants With Stable/Improved Health Related Quality of Life (HRQoL) Based on European Organization for Research & Treatment of Cancer (EORTC) Quality of Life Questionnaire (QLQ) Core 30 (C30)(EORTC QLQ-C30) & EORTC QLQ Brain Neoplasm 20 (BN20)Motor dysfunction (n=361, 314)4 Months

Source: ClinicalTrials.gov · Data processed: Mar 14, 2026